PES Wind 4 2019

TALKING POINT In this article we will present some thoughts operators have been collecting cable are applied during production, before, during on the industry, and how our new product, the condition data from various sources in and after spooling and installation. After cable tester Wirescan GO!, together with our almost every cable installation project. installation and termination, the cloud service, Wirescan Digital, can improve Cable manufacturers perform regular quality commissioning tests are performed to ensure cable operations and maintenance by assurance tests throughout the whole cable quality and system integrity before digitalizing the condition assessment services. production process, and they ensure the energizing the system. The test methods The article presents a timeline of cable testing quality of the final product with the Factory applied during these different stages are where we will look at common practices and Acceptance Test (FAT). often determined by the customer guided by how digitalization is the future for cable the IEEE 400 bundle for quality assurance. condition assessment and monitoring. Cable handlers and installers now take over the responsibility to bring the cable safely to Looking at the large number of offshore wind The Past the site and then install the cable without any cables already installed and all the cable quality deterioration. Several test methods installation that lies ahead of us, a significant Cable manufacturers, handlers, owners and WWW.PESWIND.COM 51

TALKING POINT Wirescan’s hardware for data acquisition, the LIRA Acquire. Wirescan Digital; we want to help all the cable quality stakeholders to digitize, structure amount of important cable condition data commissioning. These reports are often and format their data, so it is easily has been and will be generated. According to communicated by email or temporary data accessible and can provide a value as a operators we have been talking to we can rooms and you usually end up printing them fingerprint and baseline, should something derive three main challenges with this data; on paper and the leaving them in a folder, in a happen to the cable in the future. This can the data is difficult to access, the data is in a storage room. Not a very efficient and viable help improve cable operations in several format which makes it difficult to utilize, or solution if you want to extract maximum ways: by reducing time spent on condition the worst case, the data is not available at all. value from these test reports as they are a assessment, maintenance priorities and fault part of your total CAPEX of the project and location. This is applied digitalization, As an example; you’re running an offshore you wonder how can this be taken care of in a meaning that we can utilize and draw wind park development project with 100 inter simpler and more effective manner? benefits from the digitized information. array cables. LIRA, TDR and OTDR are chosen as test and fingerprinting methods, The present Wirescan GO! is our new cable testing and these technologies alone will generate product. It’s based on the same hardware, more than 400 pdf reports if the testing is The challenges described above are our but we have made a completely new performed at FAT, spooling and motivation to develop Wirescan GO! and software, which lowers the user threshold significantly when compared to the old system. There is no longer a need for a three-day training course, or a high level of cable knowledge and experience, to be able to collect LIRA data from practically any cable. We have also implemented TDR functionality, together with some basic LIRA results, to provide users with a very useful field tool, which also communicates with our cloud service, Wirescan Digital, for optimal utilization of the collected data. By collecting, structuring and formatting available test data, Wirescan Digital provides a cloud-based cable database service, where cable stakeholders have on-demand access to all their cable condition data, through a simple web interface on any computer. This also means it’s possible to use tablets, and even smart phones, in the daily work of cable engineers, cable maintenance planners and other cable related decision processes. A digitalized cable database enables features, which previously were either not possible, or so complicated and time consuming that the result did not match the effort. Let’s go back to your wind farm in the Digitalizing the cable testing industry one step at the time. Today, Wirescan Digital has reached the middle column. 52 PES WIND

TALKING POINT Wirescan Digital is all about collecting high quality cable test data and turning it into available and useful information. example above. The farm has now been in available today, and we are working closely of cable condition data opens possibilities in operation for 5 years. Everything is looking with customers and digitalization partners to artificial intelligence and machine learning to good, and clean energy is powering provide the best cable assessment and produce more advanced, and even thousands of homes. You want to make sure monitoring tool available. completely new, analysis algorithms and that status quo is maintained and want to prediction models, which will make Wirescan assess the condition of your cables. You then The future Digital a solid business intelligence perform the same measurements as during companion. commissioning, LIRA, TDR and OTDR. The Wirescan will soon introduce LIRA-based difference between commissioning and now, online monitoring to the market. Online in Next steps is by utilizing Wirescan Digital you upload all the sense of monitoring cable condition the test data and results to the cloud server. while the cables are energized. Online First, we’re launching the Wirescan GO! and Now you know that all your data is secure and monitoring of power cables is well- Wirescan Digital late November this year. available when you need it. One of the strings established with technologies, as Online Customers can already now start their cable has caught your attention because it is Partial Discharge (OPD) and Distributed digitalization journey, together with installed in shallow waters and it is assumed Temperature or Acoustic Sensing (DTS/ Wirescan and our partners and to further that significant wave and tidal forces are DAS), as the major players. These develop the system based on customer deteriorating the condition of the cables. technologies provide useful information interaction and feedback. These customers, With Wirescan Digital you can easily compare related to the operation of the cable, but or early adopters, will be given exclusive condition related parameters from the string they have limitations, or need complex rights and pricing as a token of our cables and then further evaluate the cables, calculations on advanced physical models of gratefulness for their trust. which you deem to need more attention. the cable, to estimate cable condition With LIRA results in your database you can parameters. With the ability of using LIRA Second, we’re working on the evaluate both local and global parameters, in online, together with Wirescan Digital, we implementation of three commercial pilots order to assess any splices, joints or even can provide you with a monitoring tool for the online cable condition monitoring cable ageing against the reference you which produces local, or global condition part of Wirescan Digital. These projects will established during commissioning. Together information derived from the physical be running through 2020. Our sensor with the TDR and OTDR data, you have a parameters of the cable. systems will collect and feed data to strong decision support tool available at a Wirescan Digital continuously, so we can couple of clicks. Wirescan is currently establishing three pilot establish robust analysis methods, customer projects online monitoring with LIRA feedback and establish the basis for In fact, you can choose to compare all 300 technology where two of these projects are predictive analysis. phases without any additional effort, or you related to the wind industry. The capability of can even compare this wind farm to another detecting, identifying and quantifying Wirescan Digital welcomes all cable related wind farm, which has been operating for 8 changes in critical cable parameters brings a industries and cable types! years and utilize the data to produce a whole new set of possibilities in predictive valuable information basis for your maintenance. It is made available to cable Wirescan Digital, the future of cable maintenance priorities. Wirescan Digital is owners and operators. condition monitoring. In addition to this, gathering huge amounts Visit us at www.wirescan.no for more insights and contact information. WWW.PESWIND.COM 53

THINK TANK Innovations at the Borssele Wind Farm Site V Words: F erdy Hengeveld Manager Mechanical Engineering Van Oord Offshore Wind 54 PES WIND

THINK TANK Climate change and the need to reduce CO2 emissions are drivers for the rising demand of renewable energy sources. With proven experience and an impressive 20-year track record, Van Oord is leading the way in the transition towards renewable energy by constructing offshore wind projects. With innovative solutions, Van Oord contributes significantly to making wind energy more competitive. Ferdy Hengeveld further improve the environmental standards, not properly mitigated. Impressed Current to contribute to the energy transition towards Cathodic Protection (ICCP) is an effective After two years of preparation, the first renewable energy in the Netherlands and also way to achieve such mitigation. However, the monopiles from the Maasvlakte 2 in to ensure a cost-efficient fulfilment of the technology has two important negative side Rotterdam, have been loaded onto Van 2030 renewable energy targets, the following effects: (i) in the ICCP process chloride fumes Oord’s offshore installation vessel Aeolus innovations will be implemented. can be released, and (ii) the ICCP process and transported to the North Sea. The produces hydrogen-ions (H+), which reduce departure of the Aeolus is the green light for Slip Joint the local pH-value. If the pH-value becomes the installation of the foundations for the too low, sensitive components within the Borssele 2 offshore wind farm, including the The Slip Joint is an alternative connection foundation can suffer from unintended two monopiles for the Borssele wind farm between a monopile and a turbine. It works damage, while the release of chloride fumes Site V. These two monopiles play an the same way as two upside-down paper cups could result in HSE issues. important role in demonstrating stacked on top of each other. The connection innovations for the offshore wind market. is based on friction, with the weight ensuring A well-designed water replenishment firmness and stability. Installation takes place strategy mitigates these side effects. The Borssele Wind Farm Site V simply by sliding the wind turbine’s foundation Scientific research is being done to improve elements over the monopile, without having the understanding of the relation between A new sustainable energy zone is under to use grout or bolts. ICCP performance, forming of hazardous construction some 20 kilometres off the gasses and water replenishment in the Dutch coast: Borssele Wind Farm Site V. This The Slip Joint connection provides a fast, foundation in the unsteady marine site has been designated as an innovation simple and safe installation solution in environment. The improved scientific site within the Borssele Wind Farm Zone. combination with reduced maintenance models will be validated with a monitoring requirements. The sections that make the system that will be installed in Borssele V. Two Towers BV has been awarded the connection are made with standard concession and thus given a unique manufacturing methods. It is the first time a Oval cable entry hole opportunity to test and demonstrate submerged Slip Joint has been used on a advanced technologies. Borssele V consists full-size wind turbine on a full commercial basis. The electrical cables required to export the of two 9.5 MW wind turbines and will be built generated electricity are pulled in the wind in 2020. Van Oord Offshore Wind has been Thermally Sprayed Aluminium (TSA) turbine through entry holes in the awarded the Balance of Plant (BoP) scope for foundation. A Cable Protection System (CPS) this project. Once operational in 2021, the 19 Most metal structures used in the offshore is used to protect the cable. Optimisation of MW offshore wind farm will provide wind industry are currently protected against both the entry hole dimensions (by sustainable energy to 25,000 households. corrosion using a conventional paint system. implementation of an oval design instead of These systems in general have a life traditional round holes) and the CPS reduces The innovations at Borssele V: ingenuity expectancy of 25 years. However, actual structural stress concentration, resulting in in execution lifetime is subject to intensive monitoring less steel in the section of the foundation and maintenance. that is just above sea bed level. In line with the requirements of the tender to A novel coating technology, that could solve However, the main risk during the pull-in of a these issues, is Thermal Sprayed Aluminium cable through an oval hole is that the cable (TSA). By heating the material using high gets stuck in the upper, narrow part of the voltage electrical current, it can be applied to entry hole. To mitigate this risk the CPS was a metallic surface in a similar way as paint, redesigned and an extensive test program while the characteristics are much more was performed. This proves that the durable, and it allows for a design lifetime of innovative CPS can be applied on full-scale more than 35 years. An additional advantage commercial projects, allowing for potential of the application of TSA is the ‘self-healing’ steel reductions in future foundations. properties of the coating. Eco scour protection TSA is already implemented in other offshore applications, but so far it has not seen The seabed surrounding the two Borssele V extensive application in offshore wind due to wind turbines will be fitted with Eco Scour increased costs compared to paint. To reduce protection. Van Oord is using this sustainable the cost price, an automated and controlled technology to explore how nature and system to faster apply TSA on monopiles is renewable energy generation can be developed for Borssele V. mutually enhancing. Oysters will be placed on the protective layer of rock on the seabed ICCP optimisation to improve biodiversity and the natural habitat for aquatic wildlife. Internal corrosion of a foundation can significantly reduce the structural lifetime, if WWW.PESWIND.COM 55

THINK TANK Nature-inclusive wind farm development, Van Oord’s offshore installation vessel Aeolus environmental aspects and public consent play an important role in the large-scale role out of shore wind. Integration of scour protection with oyster reefs will have positive effects on the marine environment. In Borssele V, outplacement strategies for flat oysters will be tested. Cooperation All of these innovations are developed by Van Oord in cooperation with other research partners. For example, the main challenge in the Slip Joint design was to prove that the connection has sufficient strength, taking into account all possible impacts. This includes manufacturing tolerances, the impact of corrosion, fretting fatigue etc. To this end, various R&D projects were performed, such as the Slip Joint Offshore Research (SJOR) project. Here, Van Oord, together with scientific and industry partners DOT, SIF, TNO and TU Delft, demonstrated the Slip Joint technology in an offshore environment using a 500 kW wind turbine for almost 1 year. The project included extensive load and stress monitoring that were used to validate the design tools. Furthermore, SJOR included detailed material tests to study the impact of friction and fretting fatigue under different conditions. The results of SJOR and other R&D projects were taken into account by the Van Oord engineers in the design of the Borssele V foundations. Result For developers of commercial offshore wind farms, the potential benefits of large innovations are often diminished by the perceived risk of these innovations. Therefore, Borssele V offers a unique opportunity to demonstrate advanced technologies and contribute to decreasing the Levelised Cost of Energy (LCoE) of offshore wind energy. The Borssele Wind Farm Site V design was certified by DNVGL in a project certification scheme in Autumn 2019 and will be installed offshore in 2020. By obtaining the project certificate, the Two Towers BV has proven that, with all its innovations, safety is at the same level as a regular offshore wind farm. Therefore, it is expected that the demonstrated innovations will set a new standard for future foundation designs. This was only possible through close cooperation between government, industry and scientific research institutes. www.vanoord.com 56 PES WIND

PROFESSIONAL Norwegian Sea WIND HUB Norwegian Sea Experienced and specialized supply CENTRALLY LOCATED chain for the wind industry IN NORTHERN EUROPE • Prototyping projects Atlantic Ocean Baltic Sea • Production North Sea • Pre-assembly Ba • O&M service port North Sea • Decommissioning Construction of the Anholt Offshore Wind Farm earned national and international recognition for the Port of Grenaa as a professional wind turbine port. One of Denmark’s leading ports for offshore www.port-of-grenaa.com and wind turbine projects. We make every effort to support your business.

TALKING POINT Accelerating the offshore wind industry: prototyping and collaboration at the Port of Grenaa New methods and technologies are required in order to reach the potential of offshore wind as an economically viable and sustainable energy resource. The Port of Grenaa is internationally recognized as a wind hub, due to its special designed facilities and expertise attained by serving the industry for years. By providing innovative offshore wind stakeholders the opportunity to benefit from its state-of-the-art facilities and expertise, the port aims to advance the industry through collaboration. 58 PES WIND

TALKING POINT Supporting the global green transition is an Attractive setup USA and Denmark and is also currently essential part of the port’s agenda. The wind increasing the focus on facilitating industry has always been a natural part of the As one of Denmark’s leading industrial ports international prototyping projects placed at portfolio and the Port of Grenaa has a long for wind turbine projects, the port has the the port. tradition in handling onshore wind facilities, the experience and the network components. The port had a breakthrough in connections necessary to act professionally Prior to the installation of Anholt Offshore the offshore market in 2011-2013 during the with the industry. The port is highly Wind Farm the port established a custom installation of Anholt Offshore Wind Farm, committed in transferring these experiences designed pre-assembly area. Subsequently which was the largest offshore wind farm in from past projects into new innovative the port has functioned as O&M service Denmark at that time. Based on this, the port projects in close collaboration with port. The large pre-assembly area is built continues its contribution to the wind stakeholders sharing a mutual belief in the with direct access to the quay and industry providing professional and potential of offshore wind. For instance, the streamlines logistics, which cuts time in any specialized expertise. port participates in projects in Taiwan, India, given project. WWW.PESWIND.COM 59

TALKING POINT equipment, experience and solid teamwork is essential for efficient and safe loading and Today very few ports have the facilities and unloading. pre-assembly areas available for constructing new wind farms and ‘We keep up with the industry making sure prototyping projects. The port has a our setup is always attractive and up to date. competitive advantage being easily By continuous investments in the port we accessible with good navigation conditions make sure our infrastructure is always when arriving at the port. Vessels enter the prepared for testing the newest technology,’ port via the 0.7 sea mile shipping channel, says CCO, Theis Gisselbæk. with a depth of 12m, allowing efficient, safe passage for ships of all sizes related to the Strong supply chain and network offshore wind industry. connections The port offers excellent docking facilities, with a water depth of up to 11m and is Building relationships with capable, prepared for 15m. A dedicated jack-up area competitive and innovative suppliers is with reinforced seabed for installation essential in delivering new projects vessels is also available in direct connection successfully. The port has a highly to the 160,000m2 pre-assembly area. The professional supply chain with a broad port’s layout is perfect for storing and selection of dedicated and skilled businesses preparing wind turbines. within the wind industry, serving its Besides that, the port has a range of modern customers and partners a highly flexible and equipment and can undertake all types of specialized service. work when handling components. Heavy Lift 60 PES WIND Participating in a wide range of network organizations related to the industry is a top priority in order to exchange experiences, be in loop with new regulations and keep up with constantly changing safety standards. The port is part of networks such as Wind Denmark, Energy Innovation Cluster, Wind Europe’s Ports Platform and DWP System Supplier. The port has a long history of doing business with some of the leading players in the development of the wind industry, such as Vestas, MHI Vestas Offshore Wind, LM Wind Power, Siemens Gamesa Renewable Energy, Ørsted and Vattenfall. Together with some of Denmark’s biggest universities these leading stakeholders are placed within a close geographical range, making impactful collaborations not just evident but easy. Innovation through collaboration The port has an ambition to offer facilities and provide guidance in innovative projects concerning every aspect of the offshore wind industry making it a profitable business case

TALKING POINT in the entire eco-system lifecycle. offshore foundation functioning on any water will be mounted along quay and afterwards depth floating and fixed. Conventional marine towed to Norway. One of the epoch-making projects, the port wind turbines are limited to a water depth of is highly involved in, is the Interreg. North 40 – 50m, why it’s complicated for places like It is estimated that these ‘floating wind Sea Region funded project Decom Tools. California or Japan with a water depth turbines’ could reduce the cost of offshore Decom Tools is an international collaboration reaching over 50m to benefit from offshore energy by up to 75%. between thirteen partners developing wind farms. These places need a floating eco-innovative concepts for solution and TetraSpar can provide that. The Decom Tools and TetraSpar projects are decommissioning offshore wind turbines. prime examples of impactful collaborations Innogy, Shell and Stiesdal Offshore which the Port of Grenaa is highly committed The aim of the project is to reduce the Technologies are behind the project using a to accelerate and support. decommissioning costs by 20% and Siemens Gamesa turbine for the project. environmental footprint by 25% (measured The port believes, that gathering in co2 equivalents). The idea is to assembly the structures transnational and multidisciplinary cross onshore at quay area, for final pre-assembly sector competences, is a great advantage in Throughout the Decom Tools Project in the port basin, and then tow it by ship to its accelerating the industry, making it an research will be validated by demonstration destination for final deployment. accessible, profitable sustainable energy pilots and the Port of Grenaa will be working source. in the areas of logistics, safety, ship design In this project, the Port of Grenaa will and re-cycling. Innovative and already function as a test hub, where the equipment www.port-of-grenaa.com available technologies will be combined to tackle some of the major aspects of the decommissioning challenge, including the optimization of existing port infrastructure. Several companies at the Port of Grenaa are focusing on recycling metal scrap, waste management in general and turning the dismantling of ships into a profitable business case. One company has dismantled 1,500 ships at the port, so far, a business the Port of Grenaa believes can be mixed with the offshore wind industry together with the port’s annual handling of 500,000 tons of recycled materials and handling of reused turbine parts. Another innovative project the port is involved in, is the game changing TetraSpar project, making offshore wind accessible in a larger scale. TetraSpar is an industrialized WWW.PESWIND.COM 61



Bespoke wind solutions delivered On Spec, Budget and in Time We design and build technology for applications including offshore access, cable lay and subsea trenching. Contact us to discuss your operational requirements. +44 (0) 1434 682 505 [email protected] www.osbit.com

CORPORATE FOCUS The scene is set for the wind farm ‘taxi’ of the future… With two new vessels a Danish shipping company has broken records within both safe, reliable and cost-efficient crew transfers in the offshore wind industry. But this is not all… PES is delighted to bring you a preview of MHO-Co’s ‘green’ hybrid vessels of the future, which are in the pipeline at this very moment. Mik Henriksen 64 PES WIND

CORPORATE FOCUS The two sister vessels ‘MHO Gurli’ and ‘MHO respectively. A scepticism which has long The two specially-designed catamarans Esbjerg’ were designed by the CEO of been put to rest. have been in high seas and have proven to MHO-Co Mik Henriksen, who founded the push boundaries even there. With a steady shipping company in 2015. He has a long ‘Of course, there were teething problems hand, the crews have had no problems with career in the industry, having built both with a completely redesigned vessel, but we the vessels through a significant wave aluminium ferries and crew transfer vessels, quickly got to grips with them, and now we height of 2m. and with he has never concealed his clearly see that both vessels are performing ambitions to challenge and push boundaries much better than anticipated, despite the Mik Henriksen is convinced that the vessels within safe and reliable crew transfer, whilst fact that we had raised the bar significantly can handle even more. ‘We are nearing the minimizing both the financial and from the outset. As an example, fuel season when the vessels will be trying their environmental costs of sailing to and from consumption lies below 400l per hour, where strengths out on the raging elements. But, as offshore wind farms. we had expected 550l per hour. That’s a the captains become acquainted with the remarkable difference, even if I say so vessels and are able to test their reactions Measuring 39m, holding up to 65 tons of myself,’ enthuses Mik Henriksen. and movements under different conditions, I cargo and with enough room for 24 expect the vessels to reach a significant technicians, these sister vessels are the The low fuel consumption means a lower wave height of 2.10m.’ largest offshore wind farm taxis in the world. price for the offshore companies for which And indeed, ‘Gurli’ and ‘Esbjerg’ were met by MHO-Co charters. However, this is far from Where other types of CTVs must come into scepticism from the industry, when they the only thing that clients benefit from when port and lie still at a wave height of 1.75m, the were set afloat in January and May 2019, hiring the vessels. MHO vessels can withstand much rougher WWW.PESWIND.COM 65

CORPORATE FOCUS Christening of ‘MHO Esbjerg’ in May 2019 Captain’s workspace, ‘Esbjerg’ The future is hybrid generation of large CTVs, and we at PES Wind have had a glimpse of these plans. weather. Mik Henriksen expects this to give Offshore wind farming is about energy, green the two large catamarans an average of and renewable energy. Hence, a natural focus ‘The next vessels will resemble the two 10-15 more days at sea per year. ‘Having area for shipping company as a supplier to sister vessels in design and functionality, functional vessels at the offshore wind the industry is also to reduce fuel but they will be hybrid vessels combining farms. That is what this is about for us, and consumption and think in terms of greener diesel and electricity propulsion. We want to our plan has always been for our vessels to solutions for the future. be at the forefront of the green wave, and operate under the most demanding we design our vessels to meet future conditions and for as long as possible without Even though the paint on ‘Gurli’ and ‘Esbjerg’ requirements by making it possible to having to go into port for service and is barely dry, the shipping company is well replace generators with batteries, as soon maintenance. ‘Gurli’ and ‘Esbjerg’ fully meet under way in the development of the next as the battery technology permits us to,’ these expectations.’ explains Mik Henriksen, who is designing the upcoming hybrid vessels. The drawings are being finalised as we speak, and vessel construction will commence within the next six months. With hybrid vessels in the fleet, the company will be well-equipped for the tough requirements of the future, for environmentally friendly and climate friendly solutions from both legislators and industry. Asia Lurking on the Horizon Headquartered in Esbjerg on the west coast of Denmark and with a satellite office in Grimsby, England, MHO-Co has a natural point of departure in the North Sea and the entire area’s existing and future offshore wind farms. However, the shipping company has also set the course for Asia and is part of a strategic partnership with the international consortium of WindPal. In this consortium, MHO-Co and other leading European 66 PES WIND

TALKING POINT ‘Gurli’ at work built CTV to the opening of Horns Rev 3. The Danish Crown Prince, himself, seemed to be Danish Crown Prince Frederik pressed the impressed by the MHO vessel. experts work closely together with the Asian button and thus set the 49 giant 8.3-MW offshore wind industry on both developing, wind turbines in motion. Capacity on the market constructing and maintaining wind farms in both Taiwan, Japan and Singapore. ‘Esbjerg’ was moored at the quay in Hvide Mik Henriksen has not only designed the Sande, Denmark, so that curious spectators catamarans focusing on safety and ‘We have been working together for about and the many officials could take a closer efficiency, but also on dimensions. Thus, two years now, and we are very excited look at this modern service boat. And the making it a comfortable vessel for wind about the potential of this cooperation. turbine technicians, who often spend many Over time the services that we have hours on the vessels in transit between established over the years, will be made wind turbines, accommodation platforms available to the Asian markets for our and ports. customers,’ continues Mik Henriksen. The many windows make the lounge bright In order to consolidate the position of and friendly, and there is plenty of room to WindPal as a strong player on the Asian move around, despite the fact that it holds up market, MHO-Co collaborates with the to 24 technicians. Furthermore, the vessels consortium on developing new CTVs. These are laid-out with four two-bed cabins for are vessels that will also become the next technicians to enjoy some peace and quiet generation of hybrid vessels, of course. during the long crossings. Working with WindPal ensures the requirement for local content will be met. ‘Our big CTVs are popular, and there is no doubt in my mind that there is capacity on Royal visit the market for more vessels this size. In fact, I regret not having built two more Hybrid vessels are the future and while they sister vessels in Gurli and Esbjerg while we are in the making, the new sister vessels are were at it. We could have used them today,’ both the biggest, most modern and adds Mik Henriksen. comfortable CTVs on the market. But MHO-Co is not sitting on their hands. In ‘Clients are very happy with our vessels, in just one year, the shipping company has fact, the two companies having received the doubled the number of employees from 17 first charter of vessels have not let go of to 35, and the company disposes of a them since. We have received only positive number of vessels, of which three are feedback on both their efficiency and their MHO-Co’s own vessels, sailing under Danish design,’ a proud Mik Henriksen declares. colours. In addition to the two large CTVs, is the MHO Grimsby, which is a 26m long One week, however, ‘Esbjerg’ was exempted catamaran with a capacity of 24 passengers from service in the North Sea. This happened and 15 tons of cargo. in August when Vattenfall invited the newly www.mho-co.dk ‘Esbjerg’ attended the opening of Horns Rev 3. The Danish Crown Prince Frederik and Danish prime minister Mette Frederiksen in front. WWW.PESWIND.COM 67

THINK TANK Safety, efficiency and performance support in offshore wind with digitalised ocean surface insights In a bid to access stronger and more stable winds, wind farms are moving ever farther from the shore, with current planned projects up to 210km or more out to sea. The challenges associated with increasing wind farm output, however, are many, raising flags at every stage of the wind farm lifecycle. From project delays to overrunning costs, crew safety and even damage to assets, it’s all to play for when the whim of the local environment spells the difference between success and failure. Andreas Brekke, CEO of Miros 68 PES WIND

THINK TANK Though it’s true that many unpredictable to activate personnel is key, and easy access has been seen to facilitate operability factors conspire when it comes to weather to real-time, local, environmental data can improvements of up to 15%. That’s no small and wave conditions, by undertaking support the knowledge of when that critical feat when over 40% of the overall costs real-time measurements, performing moment arises. associated with the offshore wind farm relevant analyses, and developing lifecycle are attributed to operations and appropriate risk assessments, decision- From the opening stages of offshore wind maintenance activities! makers can be supported in mitigating - or farm development, monitoring wave, current eliminating altogether - the challenges that and weather conditions at the designated port A recent case study with Bibby Marine Services come their way. or harbour, as well as at any potential project examined the use of the Miros WaveFinder sites, can support accuracy in predicting sensor in their offshore operations, Decision-making support at every step of project timelines and operational feasibility the way analyses. These insights can also benefit ‘We are creating a transparent culture around subsequent vessel operations, streamlining what our vessels can achieve. This enables us The lifecycle of a wind farm is long. In fact, it situational awareness from day one. to answer questions about our operational can last up to 30 years or more. Within this limits and abilities, replacing assumptions expansive timeline there are any number of When installing assets, measuring local and guesswork with data and facts,’ explains opportunities for leveraging real-time sea environmental conditions with cutting-edge Rob Osborne, Support & Innovation state data to drive operational efficiencies technology makes it possible to widen Engineer, Bibby Marine Services. and benefit the triple-bottom line. No matter weather windows and work closer to the activity, picking the opportune moment operational limits. In fact, Miros technology Marine operations frequently top the incident list when it comes to health and safety reporting in offshore wind, with incidents related to crew transfer making up a significant portion of the total, according to reports from the likes of G+, the Global Offshore Wind Health & Safety Organisation. Environmental monitoring efforts, however, offer the ability to improve operational performance whilst simultaneously ensuring the safety of personnel, thus mitigating this major challenge for the growing global offshore wind market. Finally, when making efforts to repower older turbines or remove them altogether, many of the same risk factors are at play. Having access to a wealth of historical data can aid in structural analysis and design verification, helping to paint an accurate picture of asset lifetime stresses, a much-needed input to understanding ongoing structural integrity. The growing wave of digitalisation within the offshore wind industry denotes an important step in the raising of operational baselines. Tools that provide greater situational awareness of real-time conditions are a key driver behind this trend. Miros Cloud: real-time ocean insights in the palm of your hand ‘2019 is a landmark year for Miros. Not only is it our 35th anniversary, but it also represents Miros is a technology company that specialises in measuring the ocean surface. With 35 years of experience engineering dry-mounted, radar-based sensors robust enough to weather the harsh and unpredictable conditions of the North Sea, the company develops innovative solutions for real-time, local environmental monitoring for the global offshore and maritime industry. By making essential data available to all relevant stakeholders, Miros continues to develop its long track record of enhancing the safety, performance and efficiency of offshore operations, including those related to both floating and fixed offshore wind installations. WWW.PESWIND.COM 69

THINK TANK a milestone in the rolling out of our Cloud aims to inform better decision-making, conditions in real time enable better onshore platform and our IoT-enabled portfolio of reducing risk and aiding in the successful and onboard decisions than forecast data. sensors,’ says Miros CEO, Andreas Brekke. completion of tasks being performed on They can also play a vital role in enhancing current installations, as well as planned safety during construction, as well as during Earlier this year, an installation window projects, both fixed and floating. operation and maintenance activities - opened at ORE Catapult’s 7MW Leve mouth whether planned or reactive. Demonstration Turbine in Fife, Scotland, Thanks to its plug-and-play functionality, presenting a unique opportunity to showcase once Wave Weather has a connection to Real-time knowledge of weather and sea Miros’ IoT-enabled portfolio and its potential power and the Internet, data is immediately state conditions can also contribute for supporting the offshore wind market with available in the Cloud, accessible via any substantially to this process by enabling Cloud-based data access. The Miros device, on or offshore. enhanced preparedness and the avoidance of WaveWeather solution was chosen for inordinately dangerous situations. Access to installation at the site. This Cloud-integrated technology enables all this data can reduce operational costs relevant stakeholders to consider the same through the support of onshore decision- With the UK offshore wind Sector Deal information and make decisions accordingly. making, for example, in avoiding the promising to drive the UK’s market capacity High-quality information on local-scale wave deployment of vessels in weather conditions in coming years, related operations are and weather conditions is fundamental for that would ultimately inhibit the completion expected to become more frequent, to last successfully planning and executing of a mission. longer, and to be carried out farther from activities offshore. In this way, WaveWeather the shoreline (particularly with the rise of serves as a situational awareness tool, About Miros floating arrays). This raises significant supporting decision-making processes with issues when it comes to crew safety, as well real-time insights. Founded in Norway in 1984, Miros is a as operational efficacy in general. Miros technology company that specialises in Systems that monitor wave and weather measuring the ocean surface. Our portfolio of sensors provides accurate, real-time data for weather- sensitive operations offshore, as well as offering input to asset integrity systems and coastal monitoring. Our radar-based solutions deliver real-time insights about local sea state and marine conditions, without the need for any equipment submerged in water. Additionally, the company’s Cloud- integrated sensors allow for easy and secure access to essential data, anywhere, anytime, from any device, and with minimum effort. Find out more at www.miros-group.com or view real-time data from installations at www.miros.app 70 PES WIND

LIVE by providing a sustainable future Van Oord has completed several prominent offshore wind projects as a contractor. How? With great teamwork, specialised knowledge and the highest quality equipment. Get ready for more sustainable living. Watch our offshore wind project videos vanoord.com/wind

ASK THE EXPERTS: ACCOMMODATION Fast, flexible and ready to use This is the final PES interview of 2019 with Hans Gatzemeier, the CEO at ELA Container Offshore. It has been a great pleasure to learn more about this successful German company. It has grown through listening to the customer, innovation and being able to rise to the challenge of globalisation. The future looks bright as we move into 2020 and a buoyant offshore market. Hans Gatzemeier 72 PES WIND

ASK THE EXPERTS: ACCOMMODATION PES: Hi Hans welcome back to PES Wind. It’s services on a global scale, after which all are creates benefits on multiple levels. The short great to be continuing this series of tested to the German standards and logistical routes and the face-to-face style of interviews about ELA Container Offshore. integrated into a true German-engineered doing business gives us great versatility and We are really getting to know the company accommodation module. creates savings throughout the supply chain. and its values. Your production is ‘Made in All of these savings are passed on to our Germany’, we would like to explore that a PES: What are some of the benefits of end-users in one form or the other. little further. working and partnering with some of the more ‘local’ companies nearby? PES: How long does it take from quote to Which part of your containers does this delivery and does ELA supervise any of the refer to why is this so important to you? HG: First and foremost, it is important to production process? realise that there is a great and rich maritime Hans Gatzemeier: It’s great to be back. Well, and offshore history in our area in Lower HG: It is safe to say that our response times although our accommodation containers Saxony Germany. This means that we have a are setting the standards in our market. have been purpose built in Germany to our tremendous pool of knowledge and Speed, next to the highest quality and specific requirements and highest standards, experience available, literally, on our perfect reliability are probably our greatest ‘Made in Germany’ to me is more than that. doorstep. This has allowed us to build a very strengths. By drawing from our large rental Rather than only using German suppliers and strong local supply chain, which covers the fleet, we can provide equipment for the equipment, I feel it is a state of mind that whole process from A to Z. rental market ex-stock, allowing mobilisation focuses on engineering the best possible onboard within hours if needed. solutions, using dedicated suppliers and the Even though in today’s day-and-age of best possible components. As such, our globalisation international supply chains are Sales opportunities can also be serviced procurement team sources equipment and easily managed, having local partners still from our rental fleet if speed is required, but alternatively we are able to offer new-builds too. In case of bespoke equipment, we are able to engage our local supply chain and in-house team of engineers to translate customer wishes into a finished product in the shortest possible and commercially viable timeframe. PES: As well as supplying your off the shelf containers, you also offer customised models, how do you plan your delivery schedule so that you have a quick enough turn around to comply with customers’ needs? HG: Next to our standard rental modules, we also build bespoke container units for a wide variety of applications. We will ensure that all containers not only meet the applicable regulations and guidelines, but also meet all the stipulations provided by our customers. The actual timeline per project is highly dependent on a large number of variables such as, but not limited to, the structural engineering involved, paintwork requirements, third-party inspections and certifications by external organisations such as classification societies. Particularly when it comes to these bespoke projects, we are able to apply our vast experience and assist our customers to finalise their projects on time and within budget by creating a transparent production planning with clear work steps and mutually agreed milestones. PES: How does this approach help ELA to stand out from the competition? HG: By always putting our customers first, we are willing and able to take that extra step and provide the best possible solution in the shortest possible timeframe. We strive to be a 100% reliable partner and will work with our customers to come to a mutually beneficial solution, each and every time. PES: Could you tell us about the certification process, what does it involve? HG: The certification process is fairly straightforward. Together with our WWW.PESWIND.COM 73

ASK THE EXPERTS: ACCOMMODATION ELA Offshore 10 ft Incineration Toilet Container customers and the classification society of choice we identify the requirements and Air circulation with control system integrate these into a comprehensive technical proposal. After all parties have 74 PES WIND been able to review and release this proposal, we are able to commence production and work together with the classification society to ensure that all boxes are ticked during all stages of production. PES: We would be interested to know where your main markets are and if this has changed over the years? Do you envisage that BREXIT may have any impact at all on the market? HG: Our main markets are essentially wherever people require temporary accommodation solutions. By nature, our markets are constantly moving on a global scale, so it is impossible to tie this down to a specific geographic region or country. As our container modules are CSC plated, it is fairly easy for us to follow our customers around the globe using standard shipping lines at the lowest possible rates. Furthermore, our network of subsidiaries and partners is ever-expanding, enabling us to offer local service to our customers, irrespective of their nationality or location.

ASK THE EXPERTS: ACCOMMODATION Electrical and hydraulical power unit in customer colors modules and we will expand our existing rental fleet with another 50 modules across Brexit is not a major concern at this moment, HG: Our planning is currently very ambitious the range. All to ensure perfect availability as we have seen in the past that we are able and we are forecasting an increase in and minimal lead times for our customers. to adapt quickly to new realities and we are demand. We have been awarded a large confident that we will be able to excel in any contract which requires us to build around 50 PES: How do you see the wind market at the market and any market situation. Premium Plus modules that are all intended moment and do you see this changing in the to be built, delivered and mobilised within the near future? PES: Can you tell us about any projects you next 12 months. are working on currently and do you have HG: We are very confident in the offshore any new models in the pipeline? For another project we are preparing to renewables market, not just offshore wind, mobilise over 50 new ELA Allrounder and most of the investments highlighted above are intended for the renewables market. Particularly in Europe there is a growing potential in the renewables sector, which we can clearly see in the form of enquiries and contracts directly linked to the offshore renewables sector. PES: Looking forward, is there anything else that you would like to share with our readers as we move toward 2020? HG: We are excited about what 2020 will bring and we look forward to an increasing market for offshore accommodation modules, in the growing offshore environment. As before, we will continue to rely on premium quality, perfect reliability and short response times to service our customers, which we trust will result in sustainable growth and the successful completion of our mutual project. As always: [fast] [flexible] and [ready to use]. www.ela-offshore.com Container unit equipped as galley with dining area WWW.PESWIND.COM 75

THE PORT OF STOCKTON YOUR PERFECT PIVOT POINT 209 • 946 • 0246 We stay in constant motion so that PORTOFSTOCKTON.COM your wind energy components reach the market on time and ready to spin. We give you 24/7 access to your cargo, on-dock rail facilities, and we are adjacent to less congested high- ways. This makes our turnaround time second to none. Need space to prepare your cargo for the next leg of the journey? We have ample lay- down area and two mobile cranes to handle over-size and heavy lift cargo. The Port of Stockton: we keep things moving at a key turning point in your supply chain.

TALKING POINT How long does a coating protect? WWW.PESWIND.COM 77

TALKING POINT The steel structures, which make up a wind farm, need protection. Importantly, those offshore need a specific type, because without the correct coating corrosion occurs. This weakens and shortens the lifespan of the parts. Jo van Montfort, from Bjond, explains to PES why the choice of coating should be made by an expert, based on experience and not just lab tests. Main function of a coating previous C5-M category and can be used for or exaggerated controls of the works. offshore areas with a high salt content. The most important characteristic of an As a result of this ‘unconscious organic coating: paint is to form a barrier In this standard it is clearly written under incompetence’ we observe that one of the between the steel to be protected and the paragraph 5 that the selection of a paint following two strategies is chosen: environment. Functional loss of the barrier system for a specific situation should effect leads to corrosion of the substrate preferably be based on experience, with the 1. C ompulsory tests according to, depending on the circumstances. On use of the coating system in comparable admittedly, recognized standards are average, it can be assumed that unprotected cases. It also states that the results of imposed, but a real understanding of the steel corrodes at a velocity of between 0.2 artificial aging tests should be used with connection with the required long and 0.8mm per year and under specific caution and that it is difficult to make a maintenance-free lifespan. Often followed marine conditions it can be even up to a few reliable ranking of paint systems, with very by excessive checks on the work being millimetres per year. different compositions other than artificial carried out. aging tests in the laboratory. It is very important for an asset owner or 2. A metal coating is chosen to be applied by maintenance manager to understand which The standard also states: ‘this can flame spraying, e.g. Thermal spraying parameters influence the lifetime of a sometimes result in good protective paint aluminum, where a longer service life is coating system. systems being rejected because they cannot expected without properly understanding pass these tests’. the scope of these types of coatings Metallic coatings In addition, Weinell et al. (1), among others, We also conclude that pre-qualification tests Next to organic coating systems also metallic have established that the reverse also occurs, based solely on laboratory testing are not coatings: e.g. Thermal Sprayed Aluminium/ in which approved coating systems according sufficient to obtain the right coating systems TSA are used. The costs for a TSA coating are to the NORSOK requirements, which are for an actual application. All coating experts significantly higher (>20%) than a laboratory tests, fail within a few years. agree that the service life of a coating system conventional organic paint. depends not only on the material properties, Insufficient knowledge but also on the quality of the surface If a metallic, inorganic, coating is used, the preparation, the coating thickness and the covered steel has cathodic protection at the Based on interviews with designers, quality of the finish and the substrate. places where the coating no longer covers applicators, contractors, inspectors, the steel, provided that: consultants/specifiers and asset owners, in In our opinion existing standards do not have all kinds of industries we conclude that there a clear position when it comes to selecting • The distance between the unprotected is often insufficient knowledge and coating systems. The starting point of the steel and the detached coating is not too experience on the scope of the standards in standards is the performance based on big: less than a few centimetres relation to the risk of corrosion. The laboratory tests. complexity of this matter is not recognised, • The metallic coating still adheres resulting either in suboptimal solutions and/ Testing according to these standards means sufficiently to the underlying steel that the coating system is displayed on a • The amphoteric nature is not compromised: TSA can be dissolved by acids or alkalines If properly applied and chosen as fit for purpose, respecting the design of the structure, accessibility and exposure conditions it is possible to achieve a very (>20 years) long service life. The main point we want to address is that such a choice needs to be made by experienced experts such as Bjond. Standards & guidelines In the wind industry, guidelines and standards such as DNVGL-RP-0416, Norsok M501, specific for offshore, and EN-ISO 12944 are used as the basis for selecting a coating system. The recently updated standard EN-ISO 12944 also defines a new atmospheric corrosivity class: CX that is more aggressive than the 78 PES WIND

• Coating experts • Experts construction materials • Corrosion experts Bjond are independent coating experts Bjond knows how to find the best solutions that are cost that know how to protect steel and effective and technically fit for purpose. concrete, under difficult conditions. Bjond considers coatings as building materials with physical and material properties. We make the difference because we know which properties are relevant. We always look beyond existing standards and tests www.bjond.be t +31 629 70 51 79 [email protected]

TALKING POINT perfectly prepared flat panel under help of this procedure, the effect of the most • Low: up to 7 years perfectly controlled conditions. These important influencing factors on the lifespan panels are then exposed to accelerated are quantified. • Medium: 7 to 15 years aging tests. In most tests, the primary goal is to only test the resistance to water, Basically, we determine the influence of the • High: 15 to 25 years moisture and salt spray as an indication of following issues on the lifespan: wet adhesion and barrier properties. • Very High: more than 25 years • L evel of experience/testing with the Our experience is that in day to day work coating product. In general, the design attention for a coating people hardly ever work under perfect is limited to establishing a number of general conditions, or with perfect surface • Impact of design issues of the steel aspects. In the design phase, usually only the preparation. Moreover, failure of a coating structure in terms of coatability; type and type of coating system is determined, based system almost never occurs on the flat parts, number of details that are not easy to on the standards and recommendations of but mainly on edges, bolted connections, prepare/coat. paint suppliers. notches, welds, etc. Locations with a high risk of internal tensile stress in the coating • Q uality of the coating process inclusive Our approach is supplier independent and can resulting in micro, meso, macro cracking and implied controls and level of craftsmanship. be used for all kinds of industries/applications debonding. The tolerance of coating systems where risk of corrosion forms a serious issue for these effects is not included in the • Maintainability and exposure circumstances and take coating selection to a higher level. recognized and mandatory tests imposed. during service. To guarantee an adequate application, a We also observed that effective accelerated For each separate issue weighting factors are thorough knowledge of coatings and aging tests in the laboratory should simulate given, representing the effect on the corrosion mechanisms is required. However, the failure modes in the field, such as: reduction of the service life of the coating provided good training is undertaken, system. The weighting factors used in this non-coating experts could also use our • Tolerance for deviating circumstances with methodology were introduced based on the procedure/tool within certain limits. regard to substrate pre-treatment and available long-term experience and environmental conditions by means of knowledge in this field. www.bjond.be physical tests. With this methodology we are able to define Lit.1: Claus Erik Weinell, New developments • P remature failure of the coating at sharp four lifespan classes: in coatings for extended lifetime for offshore edges, corners and welds. wind structures, NACE paper 9364, 2017. • Measuring the development of mechanical properties as a function of (accelerated) aging tests. • E tc. To this end, NACE has published various test standards that test physical issues such as thermal cycles, edge coverage and film flexibility but are not prescribed. We would advocate prescribing these tests in order to qualify suitable coating products. Lifetime quantification In order to be able to more accurately predict the lifespan of a coating system, we have developed our own methodology. With the 80 PES WIND



ASK THE EXPERTS: BROKERING Cooperative and innovative services PES caught up with Anders Helsinghoff Fjord, CEO of Hagland Shipbrokers, Denmark, to find out about the changes and expansion in his business. Cooperation is a key factor in operations, along with local offices. It hasn’t been an easy time for this segment of our industry but Hagland are innovative and adapt their solutions to the client requests. Anders Helsinghoff Fjord 82 PES WIND

ASK THE EXPERTS: BROKERING PES: Hi Anders it’s great to be talking with and wondered why and what this means to 1mHs and now the largest CTV´s are 39m and you again. It’s a while since we spoke and so a the company? are able to do transfer in 2mHs. This brief overview of your company and the development means the operation is more history will be of interest to our new readers. AHF: After 18 months of cooperation efficient, with cost savings and more safety between the offices in Esbjerg and for the technicians. Anders Helsinghoff Fjord: The pleasure is Haugesund, and then the gradual mine. Hagland Shipbrokers, which is the incorporation of the additional offices in both Now alternative power is being tested to former North Sea Shipbrokers, started back Hamburg and Aberdeen, all four offices were reduce the environmental impact from in 1976 with a port agency, which sold and rebranded into Hagland Shipbrokers. wind farm installations. Windcat’s purchased fishing vessels in Esbjerg. In 2006 I hydrogen-powered vessels will be the first started the chartering department. Later in By doing this Hagland Shipbrokers is now one to test this on a CTV vessel. 2008, we joined the offshore wind market, of the largest and most experienced offshore with our first survey vessel. From there we shipbroking companies world-wide. All PES: Why do you think this is? developed into one of the leaders in offshore offices in the group will share the same visual wind and have been part of many new vessel identity, e-mail and web page. Hagland AHF: When looking at the total designs, as well as inputting ideas for Shipbrokers now consists of 27 brokers in environmental impact from the vessels used optimisation and cost savings. total. There are 17 working in offshore & to install and service a windfarm, there is a renewables, and 10 specialist brokers mandate to reduce the impact and by PES: We note that you have changed the working within sale and purchase, short sea optimising the vessel design, engines and company name to Hagland Shipbrokers tank and bulk, fishing and aquaculture. equipment the benefit will be immense. PES: Does this mean you’ve also relocated? PES: We would be interested to know where your main markets are and if this has AHF: No, we are still located in Esbjerg, changed over the years? which has always been very important to us, as Esbjerg is a large offshore hub and we AHF: The European market is still the have a lot of clients in the area. Our central biggest. We are involved in spot and term harbour office location means it’s easy for contracts across all vessel segments. Our our customers to drop in on us. Hagland services focus mainly on chartering within: Shipbrokers now have offices in Haugesund, CTV, TIV, PSV, AHTS, Subsea, W2W, Heavy Aberdeen, Hamburg and Esbjerg. lift, Tugs and Barges. PES: Is there demand for a different type Furthermore, Hagland also assists clients of vessel? with short- and long-term requirements on a global basis, adding value to the procurement AHF: There has always been demand for new strategy. We are involved with offshore wind development. The trends change due to the projects in Taiwan, with the first 4 contracts situation in the market. The CTV market already received and this will continue during started with smaller 12m FRB, with a fender 2020. Furthermore, we expect more to come and able to do transfer with technicians in in these areas. WWW.PESWIND.COM 83

ASK THE EXPERTS: BROKERING ‘Our team of brokers have a long track-record of providing vessels to different industries and has the technical skills to analyse vessel capabilities and client requirements, thus, ensuring a perfect match.’ The sales team also work on a global basis on moment and do you see this changing in the whereby owners displayed high levels of new builds. Sales are part of our core services near future? optimism as a lot of tendering activities, and we have specialist brokers represented although low rate levels and high availability at all offices and across market segments. AHF: So far, Denmark and the UK have been have been a feature of this market for years. We take pride in bridging the gap between the most exciting offshore wind markets, Now as I told you 2 years ago, owners are still buyers and vendors. followed by The Netherlands. However, now to see a stable increase in the market. Denmark has no new projects before the first PES: What makes Hagland Shipbrokers quarter of 2020. In terms of availability, aside from Large JUV, stand out from the competition? there are still some gaps in scheduling on New markets expanding into USA and several interesting vessels. This means that AHF: Our team of brokers have a long Taiwan, who in turn are opening there are still owners with empty vessels track-record of providing vessels to opportunities for export and investment returning from current charterers. different industries and has the technical across the globe. The USA is still to take the skills to analyse vessel capabilities and first steps to show that they really want to Despite this potential availability looking client requirements, thus, ensuring a be one of leaders, whereas Taiwan has further ahead, we know there are some perfect match. already quickened the process and are full high-quality vessels on long term charter to speed ahead. contractors, facing redelivery to owners Furthermore, the cooperation between all towards the end of this season. Currently offices is the key factor, which makes us very PES: How do you see the vessel market we are more optimistic at present for the strong and able to offer the best services. evolving and is this good for you? years ahead. PES: How do you see the wind market at the AHF: Following an active first quarter www.hagland.com 84 PES WIND

Nyhavnsgade 37, 6700 Esbjerg, Denmark Sjøfartsbygget, Smedasundet 97, Haugesund, Norway Union Point, 11th Floor, Blaikie’s Quay, Aberdeen AB11 5PW Am Sandtorkai 23, 20457 Hamburg, Germany

TALKING POINT Cutting edge on the leading edge The growth of wind energy is exceptional, both in terms of installations and physical size. In Europe alone, it’s predicted to overtake gas installations and become the largest form of power generation by 2020, supported firmly by a mammoth addition of 4.9GW in capacity during just the first half of 2019. Meanwhile, the size of wind turbines has reached incredible heights, with LM Wind Power unveiling the world’s longest blade at a staggering 107 meters in length (McPhee, D. 2019). Therefore, the importance of a high-quality and easy-to-apply Leading Edge Protection (LEP) coating has never been more important to keep up with the demand from this blossoming industry. Leading edge erosion present on turbine blade 86 PES WIND

TALKING POINT Precipitation and power generation Although it may seem innocuous, the impact of debris and weather, particularly rain, on a blade can cause considerable damage. Using some rudimentary mathematics, the impact pressure of rain droplets can be estimated using modified water hammer equations. Based on a 2mm diameter droplet and an 80m/s tip speed, the pressure imparted by the raindrop is estimated at 120MPa. This value is already higher than the yield stress quoted for some blade materials. This type of damage manifests itself as Turbine blade with a single coat of Belzona 5721 minimum application temperatures. If used pitting on the blade’s surface, especially on below these temperatures the product will the leading edge, where the most impact protective materials in situ. be extremely difficult to handle and apply. will occur. This deterioration causes a reduction in aerodynamic efficiency and Climatic conditions Belzona Polymerics manufactures and subsequently a loss in operating efficiency. designs its materials specifically to Some studies show that leading edge Climatic conditions are often the driving overcome these issues and make erosion can result in a drag increase of up to factor when considering an in-situ repair. The application as easy as possible. Especially in 500% (Sareen et al. 2014), culminating in a weather does not only affect a technician’s the case of its newest system, Belzona 5721, decrease in annual energy output of up to ability to access the blades, but also the designed to deliver effective in-situ leading 20%. The effects of this damage can be ability to apply the protective materials. edge protection. apparent in as little as two years. As wind turbines can reasonably be expected to Nearly all materials used in LEP are sensitive Insight from the lab perform continuously for 15+ years, this is a to damp surfaces, temperature and humidity. significant problem for turbine operators. These elements are very difficult to control, Richard Collett, Belzona Polymerics’ Chief especially for the duration of the repair. R&D Chemist, has been prominent in this A variety of studies have investigated the Therefore, a material that is less sensitive to latest development. He said, ‘From the costs and strategies of operations and these conditions is ideal for conducting outset, our aim was to develop a solution maintenance (O&M) for wind power. Some repairs in situ. that provided excellent resistance to rain have found that these O&M ventures can erosion and abrasion, whilst being easy to account for as much as 30% of the overall Temperature is a key factor with any apply in situ. per-MWh-cost for wind turbines. Other application of a coating or tape system. The studies have looked at failures on a temperature affects the viscosity, working ‘Traditionally, the application window component-by-component basis. life (pot life) and eventual cure time. All Depending on the type of turbine, the manufacturers give recommendations on blades can account for up to 22% of failures. The resulting high costs means many companies are moving towards a preventative and predictive approach, especially in offshore markets. As well as being more costly to maintain, offshore wind turbines are also more susceptible to damage. As offshore wind is not limited by acoustic emission, the tip speeds and blade lengths tend to be much larger, thereby increasing the impact velocity of the rain droplets. The challenge The difficulty with blade maintenance is not only finding suitable materials and methods for protecting new blades but, more commonly, repairing damage to those already in the field. The associated challenges can be twofold. Firstly, materials science, developing materials and techniques that will protect blades throughout their useful lifetime. Secondly, application, applying the protective measures in the field, often in difficult conditions, narrows the available maintenance windows. There is already an extensive amount of research in the materials science field for ultimate performance. Here, we will address the second major challenge; applying WWW.PESWIND.COM 87

TALKING POINT available for wind turbine blade maintenance Brush application of Belzona 5721 Dig deeper than the datasheets is narrow, requiring favourable weather conditions and adequate temperatures to required to maintain climate controls during In summary, wind power is an ever expanding carry out repairs. We wanted to be able to certain parts of the year. and growing industry. One of the biggest extend that application window further, drivers of cost is the operations and providing more opportunities to carry out It is not only the climatic conditions and maintenance of the turbines once they are in blade repair and protection. parameters of a material that make it easier the field generating electricity. Leading edge to apply. There is also the physical aspect to erosion, caused by impact from rain droplets ‘Belzona 5721 helps to maximise available consider. The easier it is for a technician to is one of the key issues facing the sector. maintenance windows in a number of ways. apply, the greater the likelihood that the There are a variety of polymeric coatings Firstly, it can be applied by brush as a single system will perform as intended. Belzona LEP available for leading edge protection, coat system. This reduces downtime waiting materials all have simple mixing ratios. however, the issue of temperature is often for overcoating numerous layers and also Belzona 1221 and Belzona 5721 have volume overlooked. All materials have a makes it suitable for application from a mixing ratios of 1:1 and 1.75:1 respectively. recommended minimum application platform or even rope access. What’s more, it These simple ratios make it easy for any temperature, which often does not account cures without the requirement for external applicator to ensure the correct mix is for the low temperatures experienced in heat or UV, even at temperatures as low as achieved. In addition to this, the materials many wind farm installations. 5⁰C (41⁰F). This means it is touch dry in also come in a variety of unit sizes, which approximately 30-45 minutes, a major means it is possible that part mixing may not Materials such as those that Belzona benefit that minimises downtime.’ even be required. Additionally, only a brush is Polymerics provides are designed for ease of necessary for application, no need for application and effective curing at lower Putting the theory into practice injection cartridges or specialist equipment. temperatures. This not only gives a longer window of application but also makes it easier The benefits of using materials that can be for the technician to apply in the field, applied at lower temperatures become minimising application downtime considerably. apparent if we look at a UK case study. For example, the Hornsea offshore wind farm, For more information about Belzona’s range which once fully constructed, will have a of repair and protection options for wind planned capacity of up to 6 gigawatt (GW). turbine maintenance, visit: https://www. Here, the average maximum monthly belzona.com/en/focus/wind_power.aspx temperature at the nearest weather station in Bridlington varies throughout the year, References: ranging from less than 10°C to 20°C. Using this data as an estimate of expected McPhee, D. (2019). World’s largest wind temperatures when conducting blade turbine blade arrives for UK testing - News maintenance, Belzona materials can increase for the Oil and Gas Sector. [online] Energy the maintenance window of four to five Voice. Available at: https://www. months of the year to approximately nine; an energyvoice.com. [Accessed 7 Oct. 2019]. increase of 100%. Sareen, Agrim & Sapre, Chinmay & Selig, Theoretically, in the case of Belzona 5721, Michael. (2014). Effects of leading edge maintenance could be conducted all year erosion on wind turbine blade performance. round. This not only makes it easier to Wind Energy. 17. 10.1002/we.1649. schedule O&M activities, but could also reduce costs as less equipment will be Belzona 1221 can be used to rebuild pitted sections of the blade prior to further application of Belzona 5721. At 10ºC (68ºF), it will be ready to overcoat within 16 minutes, especially useful when in situ. Belzona 5721 complements in-situ maintenance thanks to its simple one coat application and full service can be restored in as little as 4 hours. This LEP coating is available in white and grey (RAL 7035). 88 PES WIND

BELZONA 5721 CUTTING EDGE ON THE LEADING EDGE Belzona 5721 is the latest solution for Leading Edge Protection (LEP) on wind turbine blades, optimised for high performance in situ. EASY TO MIX AND TOUCH DRY IN APPLY BY BRUSH 30-40 MINUTES COLD-CURING SINGLE OUTSTANDING UV COAT SYSTEM STABILITY APPLY AS LOW AS EXCELLENT RAIN 5°C (41°F) EROSION RESISTANCE Discover more at www.belzona.com/5721 #

ASK THE EXPERTS: COMPONENTS Online after-sales for wind turbine spare parts and repair material excels Hamburg-based trading company, WINDSOURCING.COM, reaches customers in the wind industry worldwide via its online presence. Seher Kaygusuz, their Business Development, Marketing and Sales manager, dropped into PES to update us on what is happening in this expanding company. Business is good and more and more partnerships are forming, which in turn provide customers with valuable training opportunities. In fact they’ve had to move to bigger premises. Seher Kaygusuz 90 PES WIND

ASK THE EXPERTS: COMPONENTS PES: Hi Seher, it’s great to be talking with multilingual website. Most new customers PES: Who are your customers and how do you again. We have spoken a lot about reach this catalogue via online research for work – is your turnaround fast enough to WINDSOURCING in the past, but I think a specific products and materials. This means: satisfy what must be sometimes urgent brief overview of the company and the no costs for an international sales team and needs? history will be of interest to our new readers. the best possible exploitation of the digital possibilities of online sales and distribution. SK: What makes us unique is that we have Seher Kaygusuz: Thank you very much for founded a sales company that specializes in having us. I am very happy to give the readers PES: We hear that you moved premises the after-sales market. Our customers are an overview. We are a specialist dealer for earlier in the year, was this due to expansion? service companies, wind farm owners and spare parts, accessories and materials for operators, but also energy suppliers and the maintenance and repair of wind turbines. SK: Exactly, we moved to larger premises in OEM’s who need material for systems of The company was launched in 2011 and was May. The expansion of our team is of course other manufacturers or who cannot procure the first online platform of its kind in the one of the reasons for this. Currently we are their products quickly enough internally. At world, with a focus on the after-sales market looking for a new employee for the sales the same time, some of our customers do for wind turbines. department as well as one for the purchasing not have their own purchasing structures to department. We also like the new request and procure market requirements. Our special feature is that the products are environment very much. We are located in Windsourcing.com does this work, enabling mainly distributed and communicated the upper part of the Hafencity in Hamburg, a customers to source most of their needs digitally. Customers worldwide have access creative-industrial quarter that fits in from a single source. to the online product catalogue on the perfectly with our spirit. WWW.PESWIND.COM 91

ASK THE EXPERTS: COMPONENTS We achieve fast delivery times because we Let me give you some examples: with minimal waste. Using Repacor as a have certain products in stock, which we time-saving method is a clear advantage and sell exclusively or regularly. End customers One of the products we sell as preferred the best choice for any service company. can purchase these products in small partner, is the repair kit for rotor blades quantities according to their needs. They ‘Epotec® YD 580SP’. This is an epoxy PES: Although you are internet based, so also receive free product training, which lamination system consisting of resin and geographic area isn’t important, do you find Windsourcing.com offers together with our two different hardeners with fast or standard that your clients are grouped or really supplier partners. reactivity. The system offers an excellent spread world-wide? combination of processing properties and In general, we expand our product portfolio fits most laminate manufacturing techniques SK: When we founded WINDSOURCING. with new product groups together with under varying environmental conditions. COM, we deliberately chose an English existing and new supply partners and orient This repair kit is officially qualified by company name. We knew from the very ourselves to the requirements of our Siemens Gamesa for e.g. the repair of rotor beginning that we would not only customers. Their demand is the best indicator blades mounted on offshore wind turbines. concentrate on the German market, but also we can have to know what the market needs, on the European and worldwide aftersales what goods we need to stock or what Another product that we distribute market. As you rightly point out, our products need to be added to our range. exclusively is ‘SikaCor® SW-1000 RepaCor’, a Internet-based presence represents an corrosion protection for on- and offshore important sales channel for us. We see PES: We were wondering if you have any wind turbines. This product is a real game Europe as a single country, whether we products which are exclusive to you, if so, changer. Instead of applying three coats of deliver to Poland or Spain, we have the same what are they and why is exclusivity corrosion protection, one after the other at processes and very good delivery important? longer intervals, this product dries four hours capabilities. This thinking and working has faster than conventional systems. The given us a very wide customer base. SK: We are very pleased to be able to offer practical packaging, in the form of mixing some very important products, including cartridges, makes the product easier to Now our customers are located all over new developments, as preferred or process, so that industrial climbers only have Europe; we supply all important wind exclusive partner in the after-sales wind to carry a low weight during their repair work, markets here. In addition, our worldwide industry market. thus guaranteeing complete process safety customer base is growing steadily. 92 PES WIND

Spare parts and repair material for wind turbines. Directly from a single source. As a specialized distributor for the wind energy industry we supply all products and services for the maintenance and repair of wind turbines from one source only. Spare parts, accessories and repair material—from electronic and hydraulic components, coatings, erosion protection tapes and adhesives for rotor blades to large components such as gear boxes. Contact us: [email protected] +49 (0)40 98 76 88 00 WINDSOURCING.COM GmbH Lippeltstrasse 1 D-20097 Hamburg, Germany www.windsourcing.com

ASK THE EXPERTS: COMPONENTS PES: What makes WINDSOURCING stand out from the competition, why should customers choose you? SK: Our work is characterized by very fast response times and a super functioning supply chain. The entire team is focused on doing their best to find and procure the spare parts and accessories our customers need. We have been growing steadily over the last few years since the company was founded. This confirms that we are on the right track. The many years of experience gained before Windsourcing.com in large industrial markets, has given us the necessary know-how on how to set up and implement logistics and purchasing processes. This enables us to provide our customers with the best possible service. We see this experience as a key capability of Windsourcing. In some areas of the after sales market we still see a lack of professionalism and try to counteract this with establishing such processes. PES: We are fast approaching the end of 2019. How has business been for you this year? SK: 2019 was a successful year for Windsourcing.com so far, in terms of revenue, building new partnerships with suppliers and expanding its product portfolio. We are currently working on a number of new projects that will come into force in 2020, and will be further developed in the coming years. We look forward to further expanding the business and adding services to our portfolio so that our customers will benefit even more from using our company as a full-service provider for purchasing spare parts and repair materials. www.windsourcing.com 94 PES WIND

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CORPORATE FOCUS Getting ready for the next generation of offshore wind projects The four legs, with lattice structure, will be able to operate in water depths of approximately 80m. Credit: The Jan De Nul Group The global offshore wind industry is developing the next generation of offshore wind turbines. These turbines can be more than 270 metres high and are fitted with blades of 120 metres long. Offshore installation vessels currently available on the market are facing increasing difficulties to install these types of turbines due to the turbines’ sizes and installation heights, as well as the ever-increasing foundation dimensions. PES brings you the latest update from the Jan De Nul Group. 96 PES WIND

CORPORATE FOCUS Based on the above findings the Jan De Nul De Nul fleet, after the Vole au vent and the wind capacities. ‘The third jack-up vessel Group decided to design and order the Taillevent. With an unrivalled crane capacity will enable us to cope with our increased Voltaire earlier this year. The Voltaire is a of over 3,000 tonnes, this jack-up vessel will number of offshore wind projects revolutionary offshore jack-up installation be able to support the renewable energy worldwide,’ Philippe Hutse continues. ‘We vessel, named after the French writer, industry to build the future wind farms at sea. recognize the global trend towards larger historian and philosopher François-Marie ‘Upon her delivery in 2022, we will be capable wind turbines for increased green energy Arouet, known by his pseudonym Voltaire of efficiently installing the next generation of demands. The Voltaire will have all the and as an icon of the European offshore wind turbine generators and required specifications to meet the Enlightenment of the 18th century. Both foundations,’ says Philippe Hutse, Offshore upcoming challenges.’ Voltaire and our jack-up vessel are pioneers Director at Jan De Nul Group. within their field of expertise. Breaking new ground in emission control This investment is a logical step forward in technology This is the third vessel of its kind in the Jan the development of Jan De Nul’s offshore The Voltaire will be environmentally compliant by taking the same highly advanced emission control technology on board as all other Ultra-Low Emission vessels in the Jan De Nul fleet. ‘At Jan De Nul Group, we face environmental challenges by focusing on minimalizing our footprint on ambient air quality and climate. Air pollution is one of the biggest dangers to public health. Marine construction activities are mostly situated in the vicinity of coastlines, ports and harbours, and densely populated areas,’ explains Hutse. ‘As a worldwide leader in marine construction, we now break new ground in emission control technology. The latest generation of our vessels are equipped, with a filtering technique for exhaust gases, which complies with the stricter European land and inland waterways emission regulations EURO STAGE V. Whatever fuel or engine technology you use to run your equipment, you always have to filter the exhaust gases.’ The Jan De Nul Group therefore designed the Voltaire running on gasoil, but fitted with a highly advanced exhaust gas filtering system, by means of a Selective Catalytic Reduction (SCR) system and a Diesel Particulate Filter (DPF). Jan De Nul has already applied this pioneering emission control technology on two trailing suction hopper dredgers and there are three more, currently under construction. The Voltaire will be the very first seagoing installation vessel of its kind to be such an Ultra-Low Emission vessel (ULEv) and, moreover, EURO STAGE V certified! Offshore wind experience worldwide The Jan De Nul Group can rely on its extensive European experience in executing offshore wind farm projects in Belgium, England, Sweden, Denmark, Finland and Germany. ‘Since 2019, we expand our European track record by constructing the Northwester 2 offshore wind farm in Belgian waters,’ continues Philippe Hutse. ‘We are responsible for the installation of the world’s largest offshore wind turbines currently available on the market: 9.5 MW with a rotor diameter of 164 metres. This is an important milestone. Not only for us and our Clients, but also for the entire offshore wind industry.’ The Jan De Nul Group operates worldwide. ‘In 2018, we secured our very first offshore wind projects outside Europe: the design and installation of the offshore wind parks WWW.PESWIND.COM 97

CORPORATE FOCUS ‘When complete, Dogger Bank will generate enough energy to power over 4.5 million homes every year, around 5% of the UK’s electricity needs.’ From top to toe, having the legs jacked and the main crane erected, the Voltaire is as tall as the Eiffel Tower Changhua and Formosa 1 Phase 2, the very in Paris. Credit: The Jan De Nul Group first offshore wind farms in Taiwan. Both projects are currently ongoing. And 98 PES WIND mid-2019, we scored a hat trick in Taiwan by winning the Formosa 2 project, neighbouring the Formosa 1 Phase 2 wind farm.’ Third offshore jack-up installation vessel ‘We now own three offshore jack-up installation vessels: Voltaire, Vole au vent and Taillevent. And they are all three especially built to install offshore wind farms,’ adds Hutse. ‘Their large cargo deck space and payload, and the lifting capacity of their on-board cranes enable swift and safe installation of the heaviest foundations and other components of offshore wind parks.’ With an unrivalled crane capacity of over 3,000 tonnes, the Voltaire, under construction and set to be delivered in 2022, is specifically designed to transport, lift and install offshore wind turbines, transition pieces and foundations. Key features include the main crane of over 3,000 tonnes, an operating depth of approximately 80 meters, a payload of about 14,000 tonnes and accommodation for 100 persons. The vessel has four legs to lift itself above the sea level for stable working conditions and is equipped with a DP2 system. ‘Compared to our two other jack-up vessels, the Vole au vent and the Taillevent, this new vessel has almost double the deck space. Not only is this vessel capable of loading the next generation of wind turbines and foundations, the larger deck space will also enable us to optimize installations at sea and to lower the fuel consumption and emissions,’ concludes Philippe Hutse. The Vole au vent and the Taillevent are both 140 metres long. The Vole au vent is equipped with a 1,500 tonnes crane and four spuds to lift itself above the sea level for stable working conditions. She can install all kinds of foundations, as well as the latest generation of wind turbines, in water depths up to 50 metre. The Taillevent has a 1,000 tonnes crane, six spuds and a maximum working depth up to 40 metres.

CORPORATE FOCUS About Dogger Bank Wind Farms: The Group also disposes of versatile and most awarded its first contract, by the world’s efficient multipurpose vessels and in-house largest offshore wind farm, Dogger Bank • A 50:50 joint venture between Equinor designed trenching tools to overcome Wind Farms. Future offshore WTGs will be and SSE Renewables unnavigable tidal areas. Thanks to their twice as big as the current WTGs, available versatility, these vessels can be deployed on a on the market and the Voltaire will transport • Consent was granted in 2015. variety of projects: installing subsea cables, and install the world’s largest offshore wind trench dredging and subsea rock installation, turbines, GE’s Haliade-X, at Dogger Bank, • L ocated in the North Sea, which definitely makes those vessels unique. which sits 130km off the Yorkshire coast. approximately 130km from the This allows the Jan De Nul Group to better Yorkshire Coast. meet the clients’ requests of having a project When complete, Dogger Bank will generate executed by one vessel contractor and to enough energy to power over 4.5 million • Water depth ranges from 20m to 35m. reduce the mobilisation costs for its clients. homes every year, around 5% of the UK’s electricity needs. • Each project will have an installed Dogger Bank Wind farms capacity of 1.2GW and will be able to ‘We are delighted to be selected as the power 1.5 million homes. Together, the Jan De Nul’s Voltaire has already been transport and installation contractor for the projects can cover approximately 5% of next generation of turbines at Dogger Bank. the UK’s estimated electricity generation. About the Jan De Nul Group The size of this giant project coincides perfectly with the capacities of our jack-up • The first project is expected to be Design. Build. Connect. vessel Voltaire. It underlines that we are operational in 2023. entering into a new phase of OWF The Jan De Nul Group shapes water and construction. We are proud to be at the • T he WTGs will be installed on monopile land worldwide. From complex offshore forefront of offshore wind construction at foundations. energy services, to large dredging and Dogger Bank,’ commented Philippe Hutse. both land and coastal reclamation • The transmission system will be High projects, to challenging civil Record low prices were awarded for the three Voltage Direct Current (HVDC) due to construction programmes. projects making up Dogger Bank Wind Farms: long distance to grid connection point. Creyke Beck A, Creyke Beck B and Teesside Well integrated competences and A. The project is now moving towards final • The Contract for Difference is a 15-year investments lead to creative, sustainable investment decision, expected in 2020. SSE contract which will be indexed for and innovative solutions. In this way The Renewables will lead the development and inflation. The strike price will be paid for Jan De Nul Group delivers results that construction phases of Dogger Bank Wind every MWh generated by the wind produces satisfied customers. Farms and Equinor will lead on operations. farms during the contract. After the CfD contract ends, the projects will Building a better future. www.jandenul.com receive the market price for electricity. WWW.PESWIND.COM 99

MAKE PLANS TO ATTEND TOP-RATED CONFERENCES Wind Resource & Project Energy Assessment Conference September 10 – 11, 2019 | Renton, WA Wind Energy Finance & Investment Conference October 1 – 2, 2019 | New York, NY Offshore WINDPOWER Conference and Exhibition October 22 – 23, 2019 | Boston, MA Clean Energy Executive Summit November 19 - 21, 2019 | Carlsbad, CA Wind Project O&M and Safety Conference February 26 – 27, 2020 | San Diego, CA Wind Project Siting and Environmental Compliance Conference April 7 - 9, 2020 | Washington, DC CLEANPOWER 2020 June 1 - 4, 2020 | Denver, CO www.awea.org