Power & Energy Solutions

The premier renewable energy publication

Panel soiling has been a running concern for solar park owners since the birth of the solar/PV industry. With many parks located in dry soiling environments, dirt accumulating on solar panels can be a major drain on efficiency, limiting power output and driving up cleaning and maintenance costs. DSM’s new Anti-Soiling coating offers a compelling answer to this widespread industry problem. Powering up output, panel by panel A multidisciplinary team of scientists and application technologists from DSM spent three years developing the Anti-Soiling coating solution before it was ready to be brought to market. The coating is an offspring of the company’s patented Anti-Reflective (AR) coating, which has been available on the market for seven years and is now in use at more than 50GW of installations globally. A series of indoor and outdoor validation tests were carried out as part of the R&D process. These included a controlled, climate-representative test, which was undertaken at a TÜV SÜD solar park in the Gobi Desert, in Dunhuang, China. During the assessment, modules coated with DSM’s Anti-Soiling coating were benchmarked against panels coated with DSM’s Anti-Reflective (AR) coating, as well as non-coated modules, over an 18-month period. During this time, the DSM team spent 12 months

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Brett Jarman, VP Commercial Business Development at Sunflare spared time to share the company’s vison with PES. Their panels are unique and they are now spending equal time developing commercial and residential solutions. They are super light, can be customized, low on emissions and can be installed in places which were previously thought impossible. PES: Hi Brett, thanks for coming in to talk with us. Could you begin by explaining a little about the background of Sunflare and the importance of the solar/PV industry to you? Brett Jarman: My pleasure. Sunflare has been in development for almost a decade, perfecting the next generation of CIGS technology. Our mission is to reduce CO2 worldwide. For that, solar needs to be installed universally. This is why Sunflare modules are light, thin, flexible and rugged, so they can go everywhere traditional solar is already installed, and many places they can only dream of for the moment. Our SUN2 cells are made of Copper, Indium, Gallium and Selenide on a .127 mm stainless steel substrate. Unlike traditional solar panels, which are covered in glass, our modules are more durable because the SUN2 cells are encapsulated between strong polymer sheets. PES: We have been hearing about your CIGS panels

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The price per megawatt used to be the sole decision-making criteria in sustainable energy sources. Now the tide is beginning to turn – the whole energy value chain needs to be taken into account when assessing feasibility. Power purchase agreements are on the rise. Most active are those energy intensive players who see sustainability and a low carbon footprint essential for their future business success. Many of them have an ambitious goal to use renewable energy sources only. You might argue that this is something that is reserved only to the big boys such as Google, Facebook and likes. But be assured, the rest of the business will follow these trailblazers. Call it good corporate citizenship, call it sound business sense. The fact remains the same; there is a growing demand for low carbon footprint energy solutions. For example, Facebook has signed a 294 MW wind power purchasing agreement with Vattenfall. The power for their data centres in the Nordics will come from the Norwegian Bjerkreim wind farm. ‘Bjerkreim wind farm is built on our rock foundations, which will help Facebook to reach their renewable energy goals,’ says Kari Tuominen, the business director for Peikko wind turbine foundations. Google is also a prime example. ‘The 148

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Hans-Peter Zimmer, CEO, blade care GmbH and trainer at the blade care Academy, had so much to share last issue that PES felt a follow up interview was necessary. We wanted to find out in more detail about clients’ motivation and some of the specific know-how the Academy offers. Research is also an integral part of improving the services and training offered. PES: Thanks for coming to talk with us again. In our last interview we learned a lot about blade care’s service on rotor blades and the Academy training programmes. We thought it would be interesting to have more details about what types of training the Academy offers and to have more information on your new reporting and management software. To begin with would you like to tell us which the most popular topics in the seminars for administrators? Hans-Peter Zimmer: Clients feel much more confident once they know about the blade structure. The administrators and decision makers need to know the importance of visible and invisible damage. An example is the need to understand the effect of lightning strikes. Some clients are not aware of the fact that plasma arcs can be generated inside the blades. Internal plasma arcs can cause

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Part of A. Silva Matos Group, founded in 1980, a family owned Portuguese Industrial Group operating in the steel industry worldwide, ASM Industries (ASMI) is a holding company that operates in the manufacturing of steel equipment for the renewable and marine industries. The company is nowadays a reference in the supply chain among the wind power industry. Since 2006, the company has already supplied more than 4000 steel wind tower sections worldwide, becoming a trustworthy, reliable and recognized partner. Over the years, the company has strategically invested in additional fabrication capacity as well as in innovation and technology, in order to be always able to fulfil the expectations of its clients and partners. It’s clear that the success is based on a solid and dedicated team, mixing the experience, know-how and the strong values of the A.Silva Matos Group, with the young, creative and ambitious team spirit. ASM Industries Being a manufacturer of heavy steel products, ASMI has its focus on three business lines: wind towers, offshore foundations and marine structures. To fulfil its business strategy, it has created industrial capacity in three operating units located in Portugal, a country with long tradition and experience in the steel works, served by a long Atlantic

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ZF is a leading pioneer in cost-efficient wind turbines. The reduction of Levelized Cost of Energy (LCoE) is their principal aim. The SHIFT platform concept means it’s now possible to optimize gearboxes for specific-site loads. PES wanted to know more. LCoE of wind energy happens with big evolutions in wind technology. Big is important. There are a couple of ways to produce more power from the wind in a given area. The first is with larger rotors and blades to cover a wider area. That increases the capacity of the turbine, i.e., its total potential production. The second is to situate the blades higher, where the wind blows more steadily. That increases the turbine’s ‘capacity factor,’ i.e., the amount of power it actually produces relative to its total potential. The more variable a source is, the more backup is needed to firm it up and make it reliable. By making wind less variable and more reliable, higher capacity factors reduce backup costs. With increasing capacity factors wind can spread its energy out over a longer period, easing wholesale price pressure during low demand. By extending its hours of operation, a high-capacity-factor turbine is more likely to be producing during demand peaks, when power is

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250,000 items, and now over 300 delivery partners – in the last two years the Hamburg-based wind energy products distributor WINDSOURCING.COM keeps on growing. These are exciting times for this go ahead company. This spring, for example, the Finnish abrasives manufacturer Mirka and Kömmerling Chemische Fabrik GmbH joined as partners. Managing Director Stefan Weber explains the success of the company is due to the continuously growing product portfolio and simultaneously its proximity to customers, suppliers, manufacturers and products. Once again in September WINDSOURCING.COM will be at the leading trade fair, WindEnergy 2018, in Hamburg with a selection of its products and services. ‘We are not an anonymous internet platform,’ Stefan Weber explains the company’s success: ‘Our customers can contact us by phone or in person in several languages. Our products and services come with concrete faces and names that they can trust. The personal accessibility and relationship are very important, both for our customers and for us as a company.’ This is one of the reasons why participation in trade fairs, such as the WindEnergy in Hamburg, where the distributor has had its own booth since the first show in 2014, are important for the team: ‘People also want to touch products, and may have

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Don’t miss the Global Wind Summit, which starts in Hamburg on 25 September; it is the biggest and most important meeting of the wind industry worldwide. It combines the world’s leading wind industry expo WindEnergy Hamburg with the global conference of WindEurope to create a high-powered, unique platform for business, networking and information for the onshore and offshore wind industry. These two top events, the expo and the conference, will be held side by side from 25 to 28 September 2018 at the Hamburg Messe site. Here is the unmissable PES preview. Exhibitors, visitors and conference participants are expected from some 100 countries. The 9 exhibition halls of the leading wind industry expo WindEnergy Hamburg are already almost fully booked, which means 1,400 exhibitors and some 35,000 trade visitors will be there in September. The WindEurope Conference, to be held inside the exhibition, features more than 250 speakers, providing a first-class programme on the issues facing the global wind industry. ‘The expo and the conference complement one another to provide a combination unmatched anywhere in the world,’ says Bernd Aufderheide, President and CEO Hamburg Messe und Congress. ‘Hamburg brings together all of the main decision-makers from both business and government,’ says Giles

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PES caught up with Carsten Kofoed, Managing Director & Hans Christian Hansen, Director of Operations at Vento Maritime, to find out more about this young company, with years of experience behind it. By following the weather and planning ahead it’s possible to make substantial savings in time and fuel and thus decrease costs. Offshore operators need to have an eye on the weather forecasts. PES: Welcome to you both to PES Wind magazine. Thanks for talking with us. Would you like to begin by explaining a little about the background and experience of Vento Maritime and the importance of the wind industry to you? Carsten Kofoed & Hans Christian Hansen: Vento Maritime is a Danish weather service company, which we founded in Copenhagen in January 2017. Together we have more than 20 years of experience in the maritime business, within meteorology, oceanography and operational MetOcean services. We are dedicated to helping maritime customers save time while, improving safety at sea. We are only into maritime weather. Our marine forecasters are dedicated meteorologists and are all WMO-certified, with years of experience in understanding the needs of maritime customers. The team is passionate about excellent customer service and the art of communicating meteorological and oceanographic

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Danny Ellis, CEO and co-founder of SkySpecs, dropped in to PES to give us the latest on the different maintenance strategies and why he thinks his company has the best proposition. PES: Welcome back to PES Wind magazine. It’s great to talk with you again. For the benefit of our new readers would you like to begin by explaining a little about the background of SkySpecs and the importance of the wind industry to you? Danny Ellis: SkySpecs is focused on wind turbine blade diagnostics and maintenance, providing robotic technology that completely automates the visual inspection, analysis, and prescription maintenance of blades with drones. Our inspections take 15 minutes or less per wind turbine, and we inspect all four sides of all three blades in a single flight without any manipulation of the wind turbine. We do not require any prior information about the wind turbine because the drone is programmed to identify and learn about the turbine when it takes off. This streamlined approach allows us to conduct around 25 turbine inspections, with a single drone, in one day. SkySpecs recently introduced Horizon – an analytics, reporting, and management software platform for the wind energy industry. Horizon allows customers to review, prioritize and

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