PES Wind Issue 1 2017

THINK TANKIn an attempt to deal with this threat, analysis mean that contracts can be viable solution to this challenge. Resourceweather risk cover has existed in one form or structured on the basis of actual production underperformance is of course inevitable,another since the late 1990s. However only (or ideal production, using SCADA data but weather risk cover ensures that anow has it emerged as a comprehensive and from the generating assets themselves), resulting drop in revenues need not be.reliable solution for those looking to stabilise rather than on meteorological data fromtheir returns. This has been driven by devices that may be off-site. While the basic premise seemsdevelopments such as longer contract straightforward, a number of obstaclesperiods, advances to settlement indexes and This means that the industry can place remain before weather risk cover can be fullyproject-specific product tailoring. Given the greater confidence in its weather risk adopted and integrated more widely withindecline of the contingent PPA (in some cover products, and their ability to standard industry practices. For instance,markets) and the additional exposure to provide compensation for there remains a limited understanding of theprice risk this has brought, there has been a underperformance precisely when such costs and benefits of such projects by assetgrowing interest in managing resource risk underperformance occurs. operators, particularly those in risk oras a means to alleviate overall increases in insurance management roles – although thisrevenue volatility. Additionally, contracts with an increased is now being tempered as these length of ten years are now available, professionals become better informed of theIn conjunction with this greater awareness of making them better able to match loan efficacy and importance of weather riskthe threat posed by fluctuations in weather tenor lengths and sync with project mitigation strategies.resource, great strides have been made in lifecycles. The availability of products whichthe ability of insurers to provide reliable and combine resource and price risk mitigation More pressingly, and unlike traditionalaffordable protection for periods of wind has likewise been met with considerable property and casualty insurance, lack ofenergy asset underperformance. enthusiasm as a catch-all solution to resource is not yet a standard requirement revenue volatility. imposed by regulators, lenders or lenders’Improvements in data collection and insurance advisors – although uptake is on Such advances are not only good news for the rise. All too often operators have sought asset owners, but also indicate that the out protection only after a significant wind industry is now reaching maturity as it revenue shortfall. This reactive approach is adopts hedging mechanisms that have long diminishing in favour of a more proactive been used in other, more developed one, as operators become more markets. Despite this, there is still a sophisticated and aim to secure their considerable degree of confusion when it futures before shortfalls can have a comes to how exactly these mechanisms negative impact. work, how they are delivered, and the nature of the safeguards they provide. They do this by investing in services such as GCube’s Weather Risk Transfer (WRT) The threat posed by resource fluctuations to product, which provides cash in years of renewable energy assets is now indisputable resource underperformance. The WRT and widespread. By our estimate, an inability product can be adjusted to suit the to efficiently transfer this weather risk preferences, needs and wind regime faced accounts for $56 billion worth of unrealised by the buyer, and there are three basic value in the global wind industry. structures available to them: put, collar, and swap. The degree of revenue lost will inevitably vary significantly from project to project, so Under the put structure, buyers pay an some more specific examples of the upfront premium and then receive difficulties caused by lack of resource compensation in years of resource should be considered. Most dramatically, underperformance. Their contract will set perhaps, following a power grid emergency out what constitutes a year of due to a loss of wind in February 2008, underperformance, as well as including the Texas recorded a resulting fall in energy compensation trigger; this could, for productions levels of 82%. instance, be 150 GWh. When production falls below this (say to 140 GWh), the insurer In Europe, Scottish Power saw its profits will pay out in proportion to how far below tumble by around £40 million over six this figure production has fallen (i.e. 10GWh months due to less wind than had been * power price). anticipated in the first half of 2016. While in Australia, renewable energy developer, With a collar structure, by contrast, buyers owner and operator Infigen saw its pay a negligible upfront premium, or indeed revenues fall 23%, again as a result of low none at all. Instead, the insured will wind speeds. compensate the insurer in years of overperformance, while the insurer will The development of more advanced weather compensate the insured in the case of risk cover means the market now has a www.peswind.com 101

THINK TANKresource underperformance. When 170,000 MWh Premiumrevenues are between the agreed figure for 160,000 MWhunder and overperformance, neither partywill compensate the other. Production Production Production 117500,,000000 MMWWhh 1 2 3 4 5 6 7 8 9 10 11 1P2remiu1m3 14 15 16 17 18 19 20Lastly, there is the swap structure. Here theinsured will pay little or no upfront premium 116400,,000000 MMWWhhbut, in this case, there is only a singletrigger figure, so that one party will always 111537000,,,000000000 MMMWWWhhh 1 2 3 4 5 6 7 8 9 10 11 1P2remiu1m3 14 15 16 17 18 19 20compensate the other at the end of thesettlement period; if revenues are above 111426000,,,000000000 MMMWWWhhhthis trigger, the insured will compensate the Year of operationinsurer, and vice versa if revenues fall below 150,000 MWhthe trigger. 130,000 MWh 1 2 3 4Reven5ue wit6h no w7eathe8r risk 9produc1t0 11 R1e2venu1e3with14put 15 16Put17 18 19 20With this variety of structures to choose Put S1117t24r000u,,,0c00000t0u00rMMMeWWWhhh Year of operationfrom, it is important to remember that onesize does not fit all; an understanding of 116300,,000000MMWWhh Revenue with no weather risk product Revenue with put Putwhich of these structures best suits the riskexposure of your project or portfolio is Production Production Production 111572000,,,000000000MMMWWWhhh 1 2 3 4 5 6 7 8 Ye9ar of1o0pera1t1ion 12 13 14 15 16 17 18 19 20critical to determining the long-termefficacy of a WRT mechanism. Time and 116400,,000000 MMWWhh Revenue with no weather risk product Revenue with put Putinvestment, therefore, will be required fromboth buyer and seller to determine a 111753000,,,000000000 MMMWWWhhh 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20suitable structure and triggers. 111642000,,,000000000 MMMWWWhhh Year of operationThose who will benefit from acquiring a 3Revenu4e wit5h no w6eather7risk p8roduc9t 10 Re1v1enue1w2ith c1o3llar 14 15Call16 17Put18 19 20WRT product can be divided into two 115300,,000000 MMWWhh 1 2groups: those who are financing (orrefinancing) and those who are not 111472000,,,000000000 MMMWWWhhh Year of operationfinancing but merely seeking to smooth 130,000 MWh Revenue with no weather risk product Revenue with collar Call Putrevenue flows, and secure revenue 160,000 MWhcertainty. In the first case, since the producteffectively safeguards a minimum revenue Colla111r257000S,,,000tr000u000cMMMtuWWWrhhhe Year of operationfor the wind farm in spite of wind speed Production Production Production 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20variability, lenders are able to apply less Revenue with no weather risk product Revenue with collar Call Putconservative estimates for their expected 114600,,000000 MMWWhhrevenues, and so can offer more favourabledebt service coverage ratios. 111573000,,,000000000 MMMWWWhhh 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20The advantages of this enhancement to 111426000,,,000000000 MMMWWWhhh Year of operationleveraging, coupled with lending ratesreductions, will make the projects more 150,000 MWhvaluable to asset owners. Indeed, GCube 130,000 MWh 1 2 3 4 5Reven6ue wit7h no w8eather9risk p1r0oduc1t1 12 R1ev3enue14with 1s5wap 16 17 18 19 20estimates that, for a 50MW onshore windfarm worth $80 million, successfully 112400,,000000 MMWWhh Year of operation Revenue with swapmitigating or transferring weather risk could 130,000 MWh Revenue with no weather risk productachieve a total Net Present Value (NPV)increase of $5.8 million. 120,000 MWh Year of operation Revenue with no weather risk productThere has also been a great deal of demand Revenue with swapfor the WRT product from those who arenot at the financing stage, particularly from Swap Structurerisk averse entities seeking the smoothingof year-on-year revenues. seen across much of the United States in concern for the renewable energy industry, 2015 and Australia in 2014, for example, with the frequency and degree ofThe advantages include an ability to means that even some of the largest underperformance affecting asset ownersminimise the impact of weather variability portfolios are not wholly safeguarded from worldwide. Its importance will only grow ason the volatility of share prices, as well as the financial strife resource wind and renewables more widely make anfoster investor confidence more widely. underperformance brings. ever greater contribution to globalBuyers of the WRT product also benefit electricity generation.from protection against downgrading by Additionally, if a portfolio owner is seekingRatings Agencies and the avoidance of project financing through a Special Purpose For both smaller and larger generators, theprofit warnings. Vehicle (SPV), a WRT product will be able to utilisation of a WRT product will deliver project-by-project financial undoubtedly provide greater revenueBased on the above, you might expect the advantages via the leveraging benefits certainty, allowing a renewed focus on whatWRT product to be of greater interest to described above. really matters: running businesses andasset owners without a portfolio than to making best use of available resources.larger companies with a range of assets in Resource variability anddiverse locations. While these companies’ underperformance remains a serious www.gcube-insurance.com/en/revenues can benefit in some instances asa result of this geographical diversification,the prevalence of region-wide wind lulls, as102 PES Wind

We create more timefor wind energy.Spare parts and repair material for windturbines. Directly from a single source.As a specialized distributor for the wind energy industrywe supply all products and services for the maintenanceand repair of wind turbines from one source only.More than 20,000 spare parts, accessories and repairmaterial—from electronic and hydraulic components,coatings, erosion protection tapes and adhesives forrotor blades to large components such as gear boxes. Contact us: [email protected] +49 (0)40 98 76 88 00 WINDSOURCING.COM GmbH Hoheluftchaussee 52 20253 Hamburg, Germany www.windsourcing.com www.peswind.com 103

THINK TANKCould you reduceO&M costs?Proper and effective operation and maintenance (O&M)management of wind energy is crucial to the energy yieldof the wind farm. Lowering the cost of O&M is becomingmore of a challenge and at the same time, a necessity forthe modern and competitive wind energy market. DanielPerkowski, CEO at Wind Audit sp. z o.o., Szczecin, Polandshares his ideas with PES on how to achieve this.A wind turbine, as any complex high-tech in advance. Technical inspection,device, should be adequately maintained in performed by a third-party, provides theorder to do its work safely and with opportunity to minimise the risk ofmaximum efficiency. Some good practices unexpected faults in the WTG system. Thisin maintenance management can reduce the obviously prevents costly downtime.overall cost of the O&M, meaning less lostenergy production and to ensure that a wind Through proactive inspections it’s possiblepower plant is in tip top technical condition. to get an overview of the wear and tear on the wind turbine’s components and it’s alsoRegular preventive maintenance the ideal method for checking the quality of the maintenance work.The regular service of wind turbines is theprimary preventive thing to do. It is After the independent inspection a report isperformed once or twice a year, depending issued, with photos and detailedon the manufacturer and type of wind information, about the current condition ofpower generator. During preventive the turbine, along with recommendationsmaintenance services, there are things for a preventive action plan. This itemisesdone, in accordance with maintenance what needs to be repaired in the near futureservice checklist. These include: hydraulic or it may recommend stopping the turbinefilters replacement, pressure measurement, until the failure is repaired.battery exchange, electrical measurementand so on. As a result, the wind turbine is Planning preventive actionsmaintained at an appropriate level, whichmay or not be confirmed by an independent Defects found during regular preventivetechnical inspection. maintenance service, which don’t require immediate intervention, are listed in aIndependent inspections report and will be repaired later. Effective organisation of work is planned to carry outObjective information about the technical repairs to minimise energy loss incondition of a wind turbine gives the O&M production. The optimum time for this ismanagement all the necessary information. when wind speed is as low as possible.It is easier to plan repair interventions when This also applies to defects observedsome technical nonconformities are known during the independent inspection check.104 PES Wind

THINK TANKwww.peswind.com 105

THINK TANKLarge service work, such as the Fig.1 of failures which have not been reportedreplacement of a gearbox or rotor blades automatically in the SCADA.also leads to a few days downtime. accuracy of the description of the work needed to be carried out and to trace the Training, competence developmentProper and effective planning of such history of a specific failure.actions can be difficult and lengthy. There is The owners or managers of wind farms andthe liaison with several subcontractors, for SCADA data monitoring and analysis technical support groups have the mostthe preparation of the road access, to significant contact with wind turbines.provide the replacement part, hiring a crane, Wind turbine remote monitoring and Continuous improvement of wind turbinesthe involvement of service technicians etc., analysis provides a simple way to keep knowledge in the and wind industry itselfwhich all need to be done at the same time track of the up to date measurement data, has a real positive impact on increasingand preferably in a period with no wind. All such as temperature, speed, pressure, awareness of the technical andof which is a great challenge. voltage level, etc. By analysing SCADA data management matters, which really may add it is possible to detect failure in the initial to the reduction of lost energy production.Modifications, improvements and phase e.g. temperature rising at the highretrofit speed, shaft bearing, or one that does not By implementing all the above practices, the appear on the alarm system, but lifetime of the wind turbine will increase, asModification and changes are made to significantly affects the functioning of the well as reduce the number of sudden failures,existing systems in order to reduce wind turbine, for example incorrect positioning of which are seen in many countries world-wide.turbine failure e.g. automatic lubrication, the nacelle on the azimuth.replacement of the old converter type by a www.windaudit.com/modern converter unit etc. A careful study of the current data status from many sensors allows for the detectionInstallation of additional equipmentsignificantly contributes to the currentdiagnostic systems, such as the vibrationanalysis of the whole drive train system(CMS - Condition Monitoring System,Fig.1.). This provides an early warning of anemerging fault.Reliable and detailed information about thetechnical condition is crucial for thelong-term technical management of the windfarm. Vibration sensors are located in keypoints on main shaft, gearbox and generator.A detailed report from the CMS givesinformation about abnormal vibration levelswhich indicate a possible threat because itpredicts damage to the rotating parts.Report analysisTypically,a short report is provided by thetechnical maintenance service. SCADAgood practice requires a thorough analysisof important failures, in the wind turbinefrom the service provider. It should then beindependently analysed, going through thecontent, checking for any mistakes in theallocation and availability of hours, the106 PES Wind

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TALKING POINT Rico Schoeni Offshore wind turbines and the108 PES Wind technology that powers them Ever wonder how wind turbines operate autonomously, with such little human intervention, in the middle of the sea? Rico Schoeni, Market Manager for Industry at HUBER+SUHNER, gives PES an inside look at the latest developments and the type of technology currently in development to power offshore wind farms.

TALKING POINT ‘The potential for limitless energy through the utilisation of a wind turbine is an area of considerable interest for renewable energy pioneering companies and is why some of the world’s most prominent producers of power are investing billions of dollars into the research and development of this sort of technology.’With the ever-increasing effects of global Unless they make frequent trips out to sea, being more expensive than both coal andwarming, coupled with the environmental and it is unlikely that most people have seen an natural gas. The availability of cheapereconomic costs of fossil fuels, never before offshore wind farm up close and even more alternatives has led to many viewinghas renewable energy been in such demand. unlikely is that they understand the various offshore wind power as an unsustainable technology that makes these wind farms renewable energy source. However, recentA research report from the World Energy operational. Since wind turbines must research suggests that offshore power willCouncil has even predicted that the world’s operate autonomously, it is essential that become a huge, global industry. Estimatesdemand for power is set to double by 2050, they have reliable communications and generated by the Organisation forleading to a global rush to construct as control equipment inside to ensure they run Economic Co-Operation and Developmentmany renewable energy sources as smoothly and correctly. (OECD) suggest that by 2030, 8% of thepossible. One of the most popular and global ocean economy will be generatedeffective sources of clean, renewable Communication and Control are the from offshore wind turbine sites, providingenergy is wind power. backbone to be able to run a wind turbine, over 435,000 jobs disproving the previous from simple things such as starting the wind doubts surrounding the energyNow, when people think of wind turbines, turbine to controlling wind speed, alternative’s potential.the image that most likely comes to mind is temperature, frequency, gear oilthe towering white windmill-esque structures temperature, wind load/stress on tower and Whilst cost was arguably one of windusually set to the backdrop of rolling green blades, etc, to operational monitoring (power power’s biggest obstacles, there alsofields. The most popular new venture for this output, voltage, current and frequency). By exists the serious issue of environmentaltechnology, however, is in the realm of closely monitoring such parameters and limitations for these sites. With theseoffshore turbine sites, located primarily on autonomously adjusting, an optimal power turbines being created in locations oftencontinental shelves across Europe and the output can be secured and maintenance many miles from the nearest land, bringingWorld. Already, there are multiple offshore windows can be planned well ahead, and reliable power and communication cablesites across Europe, comprising hundreds of only if absolutely necessary. to these sites is a costly and difficultseparate turbines producing thousands of prospect. That is why HUBER+SUHNER’sMW of power with the UK, Norway and Previously, the cost of constructing these aim is to provide the highest qualityBelgium being home of Europe’s largest off shore turbines and installing their products for one of the most demandingoffshore wind power producers. necessary cable systems was a serious environments which can be installed in an obstacle for power companies. However easy and self-explaining way; hence,The potential for limitless energy through this cost has been reduced considerably making the difference in reliability andthe utilisation of a wind turbine is an area of thanks, in part to the new economical smartness of installation and avoiding longconsiderable interest for renewable energy technologies utilised by the suppliers of and expensive downtimes.pioneering companies and is why some of these components. HUBER+SUHNER has a long heritage inthe world’s most prominent producers of providing passive solutions in fibre opticspower are investing billions of dollars into Despite the cost of these constructions as well as radio frequency, which is whythe research and development of this sort decreasing, offshore wind remains one of we see our strength in providing solutionsof technology. the most expensive sources of electricity, www.peswind.com 109

TALKING POINTthat offer best in class properties and plays the vital role of allowing the offshore The technologyreliability to enable powering and linking site’s corresponding power station tocomplex active equipment with a solution communicate with and monitor the As a company, HUBER+SUHNER recognisewhich acts as an enabler. turbines supplying the station with power. the importance of the development andThe communication-related issues which This role, is understandably important and integration of reliable, renewable andcome with constructing sites offshore in HUBER+SUHNER’s position as one of the sustainable energy infrastructures, and wethese environments require many world’s leading fibre optic and have already taken part in thekilometres of cable to connect the sites to communication systems developers implementation of multiple environmentally-the power stations and substations, and makes them ideal candidates to provide friendly hybrid vehicle projects, as well aswith offshore parks being only accessible these solutions. the future proofing of data centres andby boat or helicopter, the technology must Currently, waters exceeding 60 metres in other vital communication systems. Thisbe reliable and resilient to avoid time- depth, prevent the creation of offshore experience sets us as ideal candidates inconsuming and costly trips. Also, by turbine sites limiting the potential for such the development and production ofproviding a modular approach whilst sites to produce even further power. renewable energy systems, utilising ourinstalling the wind turbine, failure risks can However, designs which overcome this previous experience and close ties andbe reduced during building and first limitation are already under development partnerships to major industry leaders toinstallation phase. opening the potential for the creation of demonstrate HUBER+SUHNER’s place as an integral aspect of any successfulHUBER+SUHNER’s Fiber-Optic major offshore sites outside of Europe, development or construction process. WeConnections with CWDM/WDM primarily the USA. This possibility is an are an innovative technology company, soTechnology have already been integrated exciting opportunity for companies such as we pride ourselves on staying ahead of ourinto several offshore sites around Europe, HUBER+SUHNER to develop technology to competitors and the evolving demands ofwithin which they play a crucial role in meet these new demands and construction our customers by focussing on findingsupplying reliable power and projects intended to begin in the 2020’s. creative and effective solutions that arecommunication services. The importance Offshore wind technology is becoming cost effective and future-proof.of these issues cannot be understated, more important not only in UK butwith hundreds of thousands of homes and everywhere and we anticipate a global For example, bearing in mind that fibrebusinesses relying on these offshore wind acceptance and cohesion towards the quantity increases due to increasedpower sites, reliability in the provision of creation of renewable energy infrastructure applications running on fibre, we currentlythis power is vital. This sort of technology and even more advanced technologies. offer the highest fibre density harsh environment connector with the smallest footprint on the market. Having the possibility to produce cables which withstand chemicals are tested and verified to fire resistance and torsion under low temperature enables our solution to fit perfectly in offshore environments. Through industry leading research into efficient and environmentally resistant communication cable systems, HUBER+SUHNER have been able to overcome many of the obstacles that limited the effectiveness of renewable energy infrastructures. In terms of this technology’s impact on the offshore wind industry, the company’s ongoing development and production of vital, machine mechanism parts known as C parts ensure there is reliable data transmission for big wind- energy operations and that generator parts remain protected despite the harsh operating conditions. The latest technology developed and produced by HUBER+SUHNER, specifically for the offshore wind industry is the RADOX® Wind low frequency cable. RADOX® is designed to deliver the highest quality communication network between the power station and the wind turbines. This allows for the constant maintenance and monitoring, of these offshore sites, without having to physically travel out to sea to check all of the many components110 PES Wind

TALKING POINTthat comprise the turbine. Germany require that they are replaced incorporate the existing technology beingHUBER+SUHNER’s modularisation every 10-15 years, as part of what is known implemented across European offshoretechnology allows components of the as the “repowering” project. The costs sites. We currently see in offshore wind thatturbines to be sorted into remotely included in replacing existing turbines are generated power will be higher per windmonitored and controlled modules, allowing understandably high; however, through turbine and this pushes the market tofor far easier maintenance, as well over all relevant modular technology, the need to upgrade and change. Such changes alwaysfuture proofing, by allowing for quick and completely replace existing turbines is demand more connections. With power, theeffective replacement and renewal of mitigated. The reliability of C part systems will also push limits and, therefore,outdated components and modules. components has also reduced the frequency control and sensor applications will that even the most minor components need become more important. Our solutionsThe Future of Offshore Wind Energy to be replaced within a turbine. The larger today already target the possibility to and more efficient a wind turbine, the more upgrade and add more capacity.The main objective for offshore wind important it is to use resistant and, above all,energy, as an industry, is to increase the maintenance-free cables. Our efforts to continually develop andefficiency and energy output of Europe’s produce the most up to date and modernalready existing sites. This is planned to be As well as this, the offshore wind energy modular technology has allowed for thesemade possible through the developments industry is hoping to expand from the exciting prospects to become ever closer toand technology produced by companies, shallower water of the oceans of Europe becoming a reality. It is through the effortssuch as ourselves, whose work in the and begin creating sites in the deep seas of companies like HUBER+SUHNER anddevelopment of solutions such as RADOX®, off the coasts of the United States and their partners that serious strides are beinghas contributed towards the goals of the other locations around the world within the made towards a European-wide renewableindustry to improve the efficiency of coming decade. HUBER+SUHNER have energy infrastructure, which will assist inpre-existing offshore wind sites. already begun preparing for the upcoming the answering of the constantly increasing challenges that such harsh application demand for energy on a global scale.Currently, the over 25,000 turbines in fields will present. These new sites willcountries such as the UK, Belgium and www.hubersuhner.com/en/Home www.peswind.com 111

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Offshore CONTENTSAccommodation www.peswind.com113 113for rent and saleELA Container Offshore GmbH produces stand-alone offshore containers for rent and sale to be used onrigs, transformer platforms and all kind of seagoing vessels, pontoons and barges.ELA provides the modules as Temporary Living Quarters, Offices, Mess Rooms, Galleys, Laundries,Recreation or Locker Rooms for your individual demand. Additionally, ELA also offers a wide range ofoffshore cargo carrying units.The high quality Containers are “Made in Germany” according to German quality standards and possess allnecessary certifications such as DNV 2.7-1 / EN 12079-1, DNV 2.7-2, based on SOLAS, IMO FSS Code andMLC as well as CSC and are approved from several IACS-companies. In terms of fire resistance, an A60insulation provides high safety standards. Every container will be checked before delivery. Depending oncustomer requirements, ELA Offshore Containers are individually customized, immediately operational andare available at short notice.ELA Container Offshore GmbH, Zeppelinstraße 19-21, 49733 Haren (Ems), GermanyTel: +49 5932 7323-500, Fax: +49 5932 7323-510, E-Mail: [email protected], www.ela-offshore.com AcraDyne HT Series The TrusTed Leader Delivers Accuracy & Traceability to Critical BoltingAcraDyne is Your Best Choice:• One of the most accurate high torque tools in the world today• Up to 100 times faster than hydraulic tools• 1 Nm - 8,100 Nm• Ergonomic, Robust Design with FIVE handle configurations• Over 300 models to choose from• Built in integral transducer for optimal monitoring and control.• The worlds ONLY traceable system at the square drive for high torque bolting• Data Retrieval• Designed and MADE IN THE USA FOR MORE INFO: www.A I M C O - G L O B A L .comWind measurement at the spinner with iSpinComparable performancemeasurement on any turbine,in any wind farm, at any timeWith the patented iSpin technology, wind conditions can be measured more accurately than everbefore – directly at the spinner, where the wind first hits the turbine. This enables better data,more yield and lower loads. Only iSpin ensures real data transparency and helps you understandthe full production potential of any turbine, in any wind farm, at any time.The iSpin technology offers:• Simultaneous measurement of all relevant wind parameters using ultrasonic sensors• Precise measurements which are undisturbed by turbulence from the rotor, terrain effects and wakes from other turbines• Absolute power curve measurement in accordance with IEC 61400-12-2• Verifiably far less scattering than other measuring methods• Comparable measurement results, independent of OEMs• Permanent installation for constant monitoring for a fixed monthly feeThe benefits of using iSpin:• For the first time, you‘ll get full transparency in the production potential of all your wind turbines• You‘ll be able to compare the productivity of similar wind turbines, independent of site• Yaw misalignment can be detected and adjusted to avoid excessive loads• You can see the effects of component exchange and optimisation measures• You‘ll get a reliable basis for optimising your wind park management and operations strategy• You can earn more revenue after adjusting previously undetected yaw misalignmentVisit us at AWEA in Anaheim, CA, USA:22–25 May 2017, Pavilion of Denmark, Stand 2736 iSpin measures and monitors: Power curve Yaw misalignment Turbulence intensity Flow inclination www.romowind.com 22.03.17 10:20ROMO Wind AZ 210x297.indd 1ELA Container GmbH: 107www.ela-container.comAIMCO: 114www.aimco-global.comROMO Wind: IBCwww.romowind.comFiretrace: OBCwww.firetrace.com

WORD ON THE TWEETHere we bring American Wind Energy @AWEA Did you knowyou our latest there's enough installed wind energy in the US toselection from theworld of Twitter… power 24 million homes w/ more on the way? That builds #energyindependenceECOHZ @ECOHZ UK: wind farm developed by Avangrid Renewables @AvangridRenhousing association to fund building of new homes - .@GearboxExpress CEO says there's plenty of biz opportunity in the #windindustry, innovatorsfirst of its kind http://www.bbc.com/news/uk-scotland-south-scotland-39410997 … #renewableenergy just need to find it. http://www.aweablog.org/ business-booming-wind-power-factory/ …Go Greener Faster 4C Offshore News Wind Energy @Wind___Energy@Act428pm Acting on how @4COffshoreNews German Mathematical simulations and offshore wind farms: a perfectmuch #windpower is offshore wind farms match https://medium.com/@ TUeindhoven/mathematical-available from 4-8pm generated over 12.09TWh of simulations-and-offshore-wind-improves #sustainability. farms-a-perfect-match- electricity in 2016 https://goo. 2d2fe5e4dc51 … gl/fktoQV #Offshorewind #Renewables AcraDyne HT Series The TrusTed Leader Delivers Accuracy & Traceability to Critical BoltingAcraDyne is Your Best Choice:• One of the most accurate high torque tools in the world today• Up to 100 times faster than hydraulic tools• 1 Nm - 8,100 Nm• Ergonomic, Robust Design with FIVE handle configurations• Over 300 models to choose from• Built in integral transducer for optimal monitoring and control.• The worlds ONLY traceable system at the square drive for high torque bolting• Data Retrieval• Designed and MADE IN THE USA FOR MORE INFO:114PES: Europe www.A I M C O - G L O B A L .com

CONTENTSWind measurement at the spinner with iSpinComparable performancemeasurement on any turbine,in any wind farm, at any timeWith the patented iSpin technology, wind conditions can be measured more accurately than everbefore – directly at the spinner, where the wind first hits the turbine. This enables better data,more yield and lower loads. Only iSpin ensures real data transparency and helps you understandthe full production potential of any turbine, in any wind farm, at any time.The iSpin technology offers:• Simultaneous measurement of all relevant wind parameters using ultrasonic sensors• Precise measurements which are undisturbed by turbulence from the rotor, terrain effects and wakes from other turbines• Absolute power curve measurement in accordance with IEC 61400-12-2• Verifiably far less scattering than other measuring methods• Comparable measurement results, independent of OEMs• Permanent installation for constant monitoring for a fixed monthly feeThe benefits of using iSpin:• For the first time, you‘ll get full transparency in the production potential of all your wind turbines• You‘ll be able to compare the productivity of similar wind turbines, independent of site• Yaw misalignment can be detected and adjusted to avoid excessive loads• You can see the effects of component exchange and optimisation measures• You‘ll get a reliable basis for optimising your wind park management and operations strategy• You can earn more revenue after adjusting previously undetected yaw misalignmentVisit us at AWEA in Anaheim, CA, USA:22–25 May 2017, Pavilion of Denmark, Stand 2736 iSpin measures and monitors: Power curve Yaw misalignment Turbulence intensity Flow inclinationwww.romowind.com www.peswind.com115

CONTENTS116PES: Europe