PES Solar 1 2023

TALKING POINT small upfront cost will be largely offset by a © Energie Solaire 85 With compatible low voltage LiFePO4 lower levelized cost of energy (LCoE) over the batteries connected, including APstorage life of the system. Based on APsystems innovative Module batteries, it becomes the ideal AC coupling Level Power Electronics technologies, the storage solution for residential PV Microinverters also present many ELS 3K or 5K PCS provide a modular, applications, able to store from 5kWh to advantages that a string inverter cannot single-phase AC coupling and energy storage 20kWh for the household. With automatic offer, including greater flexibility. When it solution for residential solar. energy management features, system comes to fitting a roof with different angles owners can choose between back-up or orientations, accommodating other roof function, self-consumption and peak valley obstacles or limited space, microinverters time modes to secure critical loads during make design simple. Safety is also power outages and maximize energy maximized, as there is no high voltage DC on savings for their houses. the roof, an important concern for a building such as a school or a supermarket car park. Another Portable Power Station (PPS) will complete the APstorage range this year. It is also a very good way to raise users’ The LAKE1000 is a mobile power storage awareness of the project, as the production solution with 1kWh capacity, particularly of each module is accessible online and free tailored to meet the charging needs of of charge on the real-time monitoring portal. various small home appliances such as a microwave, coffee machine, LCD or Some installers are now convinced of the notebook for several hours. Something benefits of our solutions for commercial people can easily bring for the weekend to projects, including Mr Levèque, head of their country cottage to save energy. installation company Energie Solaire 85 in the west of France. The company has With many innovations to come again this carried out several 100 KW projects with year, the APsystems product portfolio aims APsystems microinverters. Among them, is to make solar energy accessible to everyone. a 136 KW project recently completed in Nantes, France. ‘This logistics building, www.apsystems.com specializing in cosmetics for hairdresser outlets, opted for a self-consumption PV project with safe and high-performance solutions with microinverters from APsystems,’ he explained. Storage is still to come Generating clean energy from solar powered roofs, cladding or carports is a fast, ever- growing trend, but the next step is the ability to store that energy and use it anywhere, anytime. This is driving the next wave of product innovations APsystems will launch on the market this year, under the APstorage brand. APstorage is already introducing the SEA range, its first generation of smart power conversion systems (PCS) with the ELS battery charger solution. W W W.P E S S O L A R .C O M 101

ASK THE EXPERTS Living life in full colour Solar panels are becoming increasingly part of our everyday world, so ensuring they blend seamlessly into their surroundings is key. A good time then for us to discuss this issue and some possible solutions for color solar modules, with Sebastian Barth, Business Development Manager Electronic Materials, at Merck. PES: Hello Sebastian and welcome back to As we see coloring as one of the key trends PES. We have known Merck for quite some and an enabler to bring more solar into time, but maybe you can say something buildings, we recently developed the about your company for those who are not application of special interference so familiar with you? pigments to color solar modules and hide their appearance. Sebastian Barth: Thanks. Merck KGaA, Darmstadt, Germany is a science and It basically combines the advantages of the technology company active in the areas of dielectric layers and the digital print of life science, healthcare, and electronic pigmented layers on glass in one solution. materials. Within the electronics sector we It’s called ColorQuant™. In short: you get also have our surface solutions business unit bright colors at a low efficiency loss and with where we develop effect pigments and other the flexibility of a printing process. innovative solutions. PES: This sounds very interesting. How PES: And this is also where your solar exactly is your solution applied? activities are based? SB: We have developed two methods of SB: Exactly. As you know Merck has been application with partners, based on individual active in the BIPV market for many years. market needs. For customized projects as Sebastian Barth Graph 1 - Example of RGB based coloring: Upper part is mixing Green/Red, Red/Blue, Blue/Green; lower part well as for a high coloring flexibility we are examples for Red/Green/Blue developed an enamel-based paste which can be applied by screen printing, roller-coating, 102 PES SOLAR and spray coating. The paste is applied before the hardening process of the glass and melts during the hardening to become like an integer layer of the glass itself. This is a standard process known in the architectural industry and perfect for most BIPV projects. For larger projects and the mass market for colored solar tiles we developed a solution based on a mass-colored front encapsulant. We can offer a colored POE as well as a colored EVA. For module producers this is easy to implement as the only thing that is replaced is a non-colored for a colored encapsulant. PES: Are all RAL colors possible? SB: We can cover a huge variety of colors. But as we work with reflection rather than absorption, we have some limitations. The RAL system is more relevant for a CMYK based coloring where you are working based

ASK THE EXPERTS Examples of one cell solar modules with colors achievable by ColorQuant™. Uncolored reference module had for achievable colors and the corresponding 175 W/m2 module efficiency. on a white background. As a solar cell is PES: Such a wide variety of colors is As a general limit the module efficiency always very dark, at least if the efficiency is amazing. And they can be achieved with a should remain above 80% compared to an high, we work with a RGB system like the low efficiency loss? uncolored reference. This limit is for example human eye. This is shown in graph 1. in the case of bright gold, a tile like terracotta SB: The impact of the color on the solar or a bright grey color. For all other colors like By mixing different amounts of red, green, module efficiency depends on the color blue or green, the remaining module and blue we can achieve a huge variety of itself, as well as on the glass used. Even efficiency is above 90% of the uncolored different colors and color shades. If all are white solar glass still has some color by reference. The visibility of the busbars of the mixed in an equal way, we end up with white. itself, and this varies depending on the solar cell on the picture is a good description This is the key difference to CMYK, where producer. In general, for darker colors the of our technology. As silver reflects all light mixing all colors ends in black. efficiency loss is lower compared to brighter you see no color on the busbars by our colors. In graph 2 we show some examples ColorQuant™ technology. If you cover them black like it is done in most all black modules today, they completely disappear. PES: Is it also possible to have a white colored module? SB: We can achieve very bright grey tones. To get to a pure white nearly all the visible spectra must be reflected, which leaves a comparable low remaining module efficiency. As there are only limited projects which would accept such a high-power loss we haven’t pushed for a pure white. But it also is challenging to get a full reflection of only the visible part of the spectrum. PES: Do you see any specific colors being favored by the BIPV market? © clevergie Installation by Ertex Solar in Switzerland at Reichenburg WWW.PESSOLAR.COM 103

ASK THE EXPERTS Rendering of installation from Sunovation SB: Clearly yes. Although we have inquiries confident that we will have many more in there any other impact on the solar module, for all colors we offer, architects are the future. for example the lifetime? frequently asking for grey. Especially the ‘different shades of grey’ we can achieve with We have also partnered with Sunovation, one SB: Besides changing the appearance and our RGB coloring. This helps to give of the market leaders in demanding and with this also the efficiency we do not see any architects the freedom of design needed to colored installations in Europe and known for impact on the solar module. We went through implement solar modules into the facades of beautiful solar designs. They recently extensive testing regarding damp heat for the future. Red and terracotta are also hot launched their own collection with over 2500 hours, as well as all other relevant colors for rooftop integration. ColorQuant™. In picture 4 you can see a tests and passed them all very well. rendering of a building with a bright grey PES: I can’t wait to see how they would look façade. I am very excited to see the first We also did extensive UV testing and did not in real life. Are there already examples on results very soon. see any fading of the color or any other the market? problems. Besides that I can only see positive PES: Is the technology exclusive for Ertex effects, like a slightly lower operational SB: After internal testing and development and Sunovation? module temperature due to the reflection of of our technology, we started launching part of the light. But we should see this when back in 2020, at the same time as the SB: We are open to partner with any solar some more projects are tracked over time. pandemic. In retrospect, it was not the best module producer or BIPV developer. Another Maybe I can give an update in the future on timing for a market introduction of a new advantage of ColorQuant™ is that it is easy to new projects. technology. But we still managed to get ship. We do not have to ship colored glass or some first projects realized. final modules. With ceramic print the glass can PES: We would be happy to hear more. be printed locally and the paste can be easily Thanks Sebastian. Ertex solar is one of the first module shipped internationally as it is not a dangerous producers we have been working with. good. For the encapsulant it is the same. Our SB: Thank you too. They have 17 years of experience in the BIPV only problem was that due to Covid-19 we market, with over 2,300 projects being weren’t able to travel for two years. h ttps://www.merckgroup.com/en/ realized, and we have already made some expertise/effect-pigments/solutions/ beautiful projects together and I am PES: I can imagine. Covid-19 is a challenge printing/spectraval-pv-solar.html for all of us. Besides the change in color, is 104 PES SOLAR

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TALKING POINT Everybody has the power, but where is the heat? There is lots of talk about power shortages and how we can produce even more power through solar or wind. It is true, nothing works without power. However, the current crisis in eastern Europe shows that we cannot only focus on power shortages. There is another source of energy, that might actually be a way bigger risk if we can’t find a sustainable solution, and that is heat. 106 PES SOLAR

TALKING POINT By mainly focusing on producing renewable cover the energy needs of a single-family which can reach high temperatures, electrical energy, heat energy is almost home. They can be combined with any other especially in summer. This leads to an completely left out. While we are building hero. module and are suitable for installation overheating of the solar cells, lowering their huge wind parks and installing PV solar panels, on all surfaces, including pitched roofs, flat performance and decreasing their life span. the main heat source is still fossil fuels such as roofs, and facades. oil and gas. In numbers, more than 80% of The hero. modules have a patented water- heat production is not renewable. In terms of electrical energy, hero. modules cooling system, which absorbs the heat, thus can produce up to 20% more than standard cooling the solar cells, increasing the On top of that, we are dependent on supplies PV panels, thanks to the patented cooling performance, and expanding the life span of from other countries, which, in a crisis like we unit. The hero.wind modules can produce the cells, as well as making the thermal are in right now, is a big threat. So, there even more energy thanks to their wind energy usable. The hero. system can be must be a way for renewable, decentralized generators, which transform wind energy integrated in different thermal systems and heat production, which will reduce CO2 into electrical energy and thus produce the thermal energy can be used in various emissions and dependency on other energy 24/7. ways, always depending on the needs of countries. Luckily, there are already solutions the homeowner. out there that can be used immediately; However, it’s the production of thermal solutions like hero. modules. energy that really makes the hero. modules Store the heat in the summer for use in stand out, and the technology is as simple as the winter Electrical and thermal energy in one it is genius. The solar cells produce electrical compact module energy through sunlight. However, sunlight Most thermal energy will be produced in the also produces thermal energy. This process summer, when the sun is strongest. This Compact hero. modules produce renewable is a big problem for standard solar panels, thermal energy can be used in various ways, electrical and thermal energy and can easily which can all be divided into two categories; immediate usage and long-term usage. The immediate usage of the thermal energy can, for example, be to heat the water boiler or to heat a pool. However, the need for thermal energy in the summer is minimal compared to the winter. And that’s why long-term usage is even more interesting. Depending on what the customer’s infrastructure and what their needs are, the produced thermal energy can be stored in various long-term options. The ice storage or the earth probe are already applied and very popular technologies. In combination with a heat pump and earth probe, for example, the thermal energy in the summer can be used to heat the soil around the earth probe. The spare heat, that is not being used immediately, is conducted into the ground. The heat is stored there over a longer period so that the heat pump can then use this heat via the earth probe in the colder months of the year. Homeowners can save a lot of electricity for the heat pump. Combine hero. with hydrogen In addition to the aforementioned thermal storage solutions, hydrogen can be used for both electricity and heat. It has to be said that hydrogen is a pure electricity storage and that one of the above-mentioned storage solutions would be needed in order to store thermal energy produced by the hero. modules. But the world’s first year- round electricity storage system, picea, developed by the German company Home Power Solutions (HPS), might just solve your heat problems anyway, by making the process heat usable. Currently, the picea system is only available in Germany. However, HPS is expanding. In the summer, the hydrogen system converts the electrical energy, delivered from the hero. modules, into electricity. During the day, the sun charges the integrated battery so that there is enough solar power available in the evening. As soon WWW.PESSOLAR.COM 107

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TALKING POINT Hero. solutions combined with different usage and storage systems as the battery is fully charged, the The solution for electricity and heat thermal energy produced by hero. either electrolyser produces hydrogen from the When compared to standard storage immediately, or then stored in a thermal surplus electricity and stores it. The systems, hydrogen offers a variety of storage solution. procedure is quite easy. benefits. Firstly, in intelligently designed systems such as picea, and similar to the hero On the other hand, a hydrogen storage The electrical energy is used to power the modules, the process heat can also be used in enables applications for which conventional electrolyser, which splits H2O into H2 and O2, addition to the electricity, which significantly battery systems are not really an option, in splitting water into hydrogen and oxygen. improves the overall efficiency of the particular the medium and long-term The oxygen will be released and the H2 will be system, up to 90% with picea. storage of surpluses from the production stored in the H2 storage. The thermal heat generated by the hydrogen of renewable energies. system can be used in the same ways as the On cloudy days and in the evenings, the This means that the H2 storage could be hydrogen system supplies the building with Picea system. Source: Home Power Solutions charged in the summer and then converted electricity from the integrated, now charged, battery. The battery acts as a short-term storage. However, to compensate for the lack of solar yield in the winter, the hydrogen system now uses the stored hydrogen, which was produced in the summer. The hydrogen acts as seasonal storage. To convert the hydrogen back into usable energy, the process is reversed and electricity is made from hydrogen again. This storage is completely emission-free. The electricity stored in the fuel cell is used to compensate for the reduced solar radiation and this way, the building continues to be supplied with up to 100% self-generated and CO2-free electricity even during the winter. To further increase the efficiency of the system, the waste heat from the energy conversion is also used. In this way, an all-season electricity storage device such as picea, achieves a total efficiency of up to 90%. WWW.PESSOLAR.COM 109

TALKING POINT back to energy in the winter, meaning that both electricity and heat are available when they are needed most. And this is completely CO2 free. Dual is the way to go We need both electricity and heat. The innovative hero. modules produce both in a compact module, on any surface. Hero.wind even produces energy 24/7. But why should the hero. be combined with a hydrogen storage? The hero. modules deliver clean, renewable electrical energy, which is needed to start the electrolysis. Furthermore, thanks to the higher energy production of the hero. modules when compared to standard solar panels, a higher degree of energy independence can be achieved, even with a smaller hydrogen storage, thus making the whole system more affordable and more profitable. Also, the thermal energy of both, the hero modules and picea, can be used in various ways, further decreasing the electricity usage, and increasing the energy independence. A renewable energy independence might just become reality. www.logic.swiss 110 PES SOLAR



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DUEÑOS DE EMPRESAS DE ENERGÍA SOLAR Y ALMACENAMIENTO HUCK.COM/WIRELESS SOLAR + STORAGE ESTÁ A LA VUELTA DE LA ESQUINA 17,000 LBF PULL FORCE AND 1-3/4\" OF STROKE Optimise your solar project with a strong and 10 Y 11 DE MAYO DEL 2023 FOR USE WITH experienced partner World Trade Center Barcelona HUCK© BRAND LOCKBOLTS AND With Solar-Log™ you reduce effort, risk and thus increase the efficiency of your energy supply. BARCELONA, ESPAÑA BLIND FASTENERS Our experience is your advantage. 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Order free ticket with the code PES2023 • You get a complete and reliable monitoring of your investment. + Install blind fasteners up to Ø1/2\" and two at en.solarsolutions.nl • You get a maintenance-friendly all-round carefree service, which has access to your plants piece lockbolts up to Ø14” worldwide. + Largest battery lockbolt tool on the market The pioneer in energy management for over 15 years. + Electronically adjustable pull force control + Standard Makita 40V wireless battery platform EN COLABORACIÓN CON Disclaimer: The information contained in this publication is only for general guidance, and is not intended to create any warranty, express, implied, or statutory; all R E - P L U S . E V E N T S / E S PA N A warranties are contained only in HFS’s written quotations, acknowledgments, and/or purchase orders. It is recommended that the user secure specific, up-to-date data and information regarding each application and/or use of such products. © 2023 Howmet Aerospace Inc. and/or its subsidiaries. All rights reserved. 1.indd 1 11/15/22 11:03 AM EU 40th European Manage your Total Energy Flow Photovoltaic Solar Energy Conference and Exhibition Your solar system integrated into your total energy system PVSEC 2023 18 22 September 2023 Lisbon MESSE MÜNCHEN Solis Commercial Portugal — & Industrial PV Inverter CCL The World’s Leading September 14-17, 2020 Exhibition for Anaheim, CA Solis-110K-5G Lisbon the Solar Industry Mark your calendars Congress n Connecting solar business: International markets, new business models, latest technologies and trends Centre SPI, ESI, and North America Smart n Experience the latest innovations: Solar cells, modules, inverters, mounting systems and much more ThEeneKrOgySWTAeeLkcwoimll bpelerteetusrynsintegmto- „ The intelligent KOSTAL Smart Energy Meter, which Efficient Safe peArnfeachtelyims,yCnaclhiforornniiasethdis September optimises the power ratios of PV electricity and mains n Stay one step ahead: Exclusive expertise at the conferences, power and also controls the wallbox. 10 MPPTs, Max. efficiency 98.7%, > 150% DC/AC ratio AFCI protection, proactively reduces fire risk forums and networking events 14-17. With the energy industry having High power tracking density 90MPPT/MW Built-in PID recovery for better module performance (optional) WexibttehenetshniveehnpeerwaovdEiulNycEtiCmpoTprOtafRoclitwoe.adKllbOboySxT,tAhKLeOnSmoTwAarLokcfefoetrmspalnetaelsl-its „ The smart KOSTAL wallbox ENECTOR, which takes over Compatible with bifacial modules Type I SPD for AC (optional) n Industry meeting point: Meet 85,000+ energy experts and roudnodwpnotwuerrns,uwpeplywfoilrl cPoVnstyisntueme sutsreivrsin-galtsoo for use with the charging of the electric vehicle in conjunction with the 1,600 exhibitors at four parallel exhibitions elekcetreopmoobuirlitiyn. dustry strong, resilient, and other components. 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Remote firmware upgrade with simple operation Supports aluminium wire access to reduce cost Works Like A Machine. monitoring tools, the KOSTAL Solar Portal and Solar App. In LthEisAwRaNy MKOOSRTEALATo:ffesrms aarmteondeerrgnyawndeepke.rcfeocmtly „ An appropriately compatible storage system that can synchronised complete PV system, with an integrated supply many of the consumers of the household with and intelligent energy management system that offers real stored solar energy. added value for PV system operators in combination with an electric vehicle: KOSTAL supplies all of thPOisWEfRrEDoBmY a single source. 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# WORD ON THE TWEET As the world edges ever closer to its net zero goals, we’ve been keeping our eye on the discussions on Twitter around green energy. Solar is a hot topic on the social media platform, with some lively debates and insightful discussions taking place. Here are just a few examples. Petr Hlobil @phlobil Stratford Energy @Stratfordenergy Europe reduced #gas consumption by We’ve recently completed a 382 kWp, 942 19.3%, #pvsolar across Europe module #Solar system in #Coventry as increased by a record 40-gigawatts last part of a warehouse refurbishment, which year, up 35% compared with 2021 driven achieved net zero carbon and BREEAM primarily by consumers who want to very good rating. Great to work with reduce energy bills, #wind, #batteries @hollis_global & @IncoContracts #heatpumps also played their part. @SolarEdgePV #solutionriseseveryday https://bloomberg.com/news/features/ TaiyangNews - All About Solar SolarEdge @SolarEdgePV @TaiyangNews Long commissioning times slowing you On behalf of Green Valley Renewable Energy down? Time to speed things up! Get your Limited (GVREL), the NTPC Renewable commission in under 1 hour with SolarEdge Energy Limited of @ntpclimited is soliciting inverters and batteries. Ready to learn bids for 310 MW floating and ground mounted more? Hear directly from one of our trusted solar PV capacity for @damodarvalleyco installation partners: https://okt.to/V2CngD reservoirs in #Jharkhand #solarpv #solarenergy https://taiyangnews.info/ Eastreadingcommunity @Eastreadingcom tenders/ntpc-launches-310-mw-solar-pv- capacity-tender/ Bringing you the UK's first consumer- owned #solarpv park @shambhavimmr @RippleEnergy you could own your share The investigation of photovoltaics and get money off your electric bills for up makes considerable use of #flexible to 40 years feel free to use my cheeky £25 #substrate #materials. One of the bonus referral link if you wanna get involved. main factors propelling the global https://rippleenergy.com/?ogu=193&rtrfn market for flexible substrates is advancements in the field of printed Germany Works. @germany_works electronics technology. https:// maximizemarketresearch.com/ Growth rates have been at around 10% in recent years. This market-report/ comes as last year’s 'Easter package' legislation has raised subsidies for rooftop PV installations, particularly if they feed the electricity generated completely into the grid. https:// germanyworks.com/branch/decarbonisation/?ref=tw.post. decarbonizing.feb23.solar #photovoltaics 114 PES SOLAR

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PUT YOUR ENERGY TRANSITION IN SAFE HANDS 107 MILLION SOLAREDGE POWER OPTIMIZERS WORLDWIDE Businesses and homeowners across Europe are facing a steep rise in energy bills and a deepening energy crisis. This is why so many are transitioning to energy independence with a SolarEdge smart energy ecosystem. SolarEdge solutions are designed with Power Optimizers to get higher yields from every solar panel. And, not unimportantly, they protect property with built-in safety features that go beyond today’s requirements. Our DC-optimized inverter technology provides the brains behind more than 3 million solar installations worldwide. With SolarEdge, you’re making the safe choice. Learn more Murk Vlietstra, SolarEdge www.solaredge.com and Bert van Hulsen, Post NL