Power & Energy Solutions

The premier renewable energy publication

PES brings you two great show previews, Solar Power International (SPI) and Energy Storage International (ESI), September 10th to 13th 2017, Las Vegas and European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) September 25th to 29th 2017, Munich Germany. Hopefully we will see you at one of them. Fusing solar energy and technology for the future The cost to install solar has dropped by more than 70% since 2010, which has helped make the industry more ubiquitous throughout the world. The United States is no exception. Nearly 260,000 Americans work in solar, more than double the number employees compared to 2012 - at more than 9,000 companies in every U.S. state. This has led the industry to expand into new markets and deploy thousands of systems nationwide. With nearly 1.4 million solar installations in the U.S., there are projections that the market will hit 2 million installations by 2018, and 4 million by 2022. This has helped the success of North America’s largest solar & energy storage trade show, Solar Power International (SPI) and Energy Storage International (ESI). This September, over 18,000 energy professionals and 650 exhibitors from more than 110 countries will make Las Vegas their home for three days to experience

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Our second preview is of the European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2017). Once again this will be an exciting event with the possibility of seeing the latest innovations, meeting up with the key players in our industry and a golden networking opportunity. Conference: 25 – 29 September 2017 Exhibition: 25 – 28 September 2017 RAI Convention & Exhibition Centre, Amsterdam, The Netherlands EU PVSEC is a fixed appointment in the calendar of PV experts – and has been for decades. In the 33rd edition from 25 to 29 September the global PV R&D community will meet in Amsterdam to discuss the latest developments and innovations. Research and technology innovations, as well as policy and strategy framework conditions – the future of photovoltaics will be shaped by a unique alliance between researchers, industry, and politics at the EU PVSEC 2017. Over 1250 abstracts have been received for the Call for Papers of the 33rd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC). Arno Smets, General Chairman of the upcoming EU PVSEC 2017 commented, ‘I am very happy with the large number of abstracts submitted. The submissions demonstrate that the interest in photovoltaics keeps on growing.’ The abstracts were received from corresponding authors in 70

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AlterPower AG is a consultancy and development company in the renewable energy sector. The team consists of professionals with over 15 years’ expertise in the solar/PV industry from investment to implementation. In July they announced the signing of joint contract with its partners and local developers in emerging markets, for a pipeline of over 3 GW of high quality projects, in different stages of development. We have been working on these 3 GW of pipeline projects for over 18 months of intensive searching, screening and negotiations with partners. We are committed to helping the renewable energy sector to optimise its costs, to reduce LCOE and to increase the returns of investment. Putting together different partners and knowledgeable professionals, understanding and auditing geographical markets and specific projects in the renewable markets, has made it possible to reach this milestone of high quality projects with high expectations on IRR. With AlterPower’s local partners, the company follows the complete project development process from scratch, starting with securing the necessary permits, the land and after careful fulfilment of legal compliance, assuring the connection point to the grid and completing the different steps to ensure it’s a valuable and competitive project once it is built. The procurement team acquires the

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In the PV industry the demand for solar modules used to be much higher than the production capacity. Nowadays companies are fighting for every part of the market share and obtainable margins are minuscule. And laser processes play a major role in this competition. The end customers have become picky about quality issues to do with PV products and project financiers keep a careful eye on the overall system costs. The constantly growing photovoltaic industry market and the development of new technologies got an additional push, as a lot of money has been put into research and development, especially close to industrial application. The survival of the fittest is basically fought on two key parameters. The production costs in USD/Wp (costs per watt peak) on the one hand and highest module power values on the other. The former was achieved by heavy reduction of consumable costs. Over the past decade most of the low hanging fruits have been picked. New sawing techniques sped up the wafering process and allowed thinner nominal wafer thicknesses, consuming less Si. Development of widespread used printing screens, metal pastes and printers reduced the consumption of silver on a cell. Both supported by falling prices for silicon and silver.

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Michael Geib, Vice President of Global Sales and Christian Went, International Account Manager at TESVOLT, came in to PES to catch us up on their latest lithium-ion battery storage systems. The UK market is of interest, one reason being the flexible tariffs. PES: We are pleased to welcome you back to PES Solar/PV magazine. For our new readers, could you please begin by explaining a little about the background of your organisation and how you currently serve the solar/PV industry? Christian Went: TESVOLT specialises in high-performance lithium-ion battery storage systems. These systems are used primarily in the commercial and industrial sectors, where battery performance requirements differ from those in the domestic storage market. To meet these requirements, we combine top quality battery inverters and lithium cells with a proprietary battery management system (BMS). Our aim is to minimise the loss of power when the battery is being charged and discharged. Lithium batteries are more energy-efficient than other storage technologies and thanks to the unique BMS from TESVOLT, they can be flexibly combined and easily expanded, even after several years. Our systems can be configured to any value from 4.8 kWh up to several megawatt hours, depending on the client’s requirements. The exceptional reliability, high

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Voltalia (Euronext Paris, ISIN code: FR0011995588), an international player in renewable energies, announces today the launch of the construction of a new 8.2 MW solar power plant in France, in the Bouches-du-Rhône department. A project won in the CRE 2 tender The 8.2 MW power plant is one of the projects won by Voltalia during the 2013 national solar tender. The plant will be located in the city of Alleins, in the Bouches-du-Rhône area. In accordance with the call for tenders, one half of the plant will be equipped with high-efficiency photovoltaic modules (4.09 MW); the other half (4.09 MW) will include concentrating photovoltaic modules with a tracker system following the sun’s path. Unlike commonly used photovoltaic panels, lenses on the panels concentrate sun rays on high performance cells, hence optimizing the use of the solar resource. The commissioning of the new plant is expected by Q2 2018 at the latest. A project in line with Voltalia’s strategy and mission The construction of this new power plant is in line with Voltalia's approach to make the most of local energy resources. The selected site, already heavily anthropized, is located on a former quarry. Voltalia has chosen to equip the fixed part of the Carrières-des-Plaines plant with SunPower high

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Munich, 31 August 2017: As a leading provider in the renewable energy sector, BayWa r.e. will also have a booth at the major German wind trade fair Husum Wind 2017. From the 12 - 15 September, the company will present its wide-ranging service portfolio at booth 2D10, in Hall 2. Renewing wind energy together With its WindGuide 20+ product, the company is responding to the fact that a large number of wind farms in Germany will cease to qualify for the feed-on tariff over the next few years. BayWa r.e. helps operators to decide what the future of their wind farm will be and provides support in the creation of tailored, economic and logical concepts. Solutions are presented to operators in an initial assessment – from optimised further operation, including energy marketing, to location-specific re-powering to the removal and sale of used installations. As a full service provider, BayWa r.e. is able to deliver all services from a single source. In response to the amended framework conditions and the introduction of wind tendering, the company will also present partnership models tailored according to various requirements for public utilities companies, project developers and public involvement energy companies. New ideas for optimised operation Even in the area

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Acquisition of two operating solar plants totalling 21.7MWp with an investment value of £26.4m Since IPO in 2014, NESF has now secured a portfolio of 50 solar PV assets with a total capacity of 505MWp and a total investment value of £581m. NESF is pleased to announce the signing and completion of a share purchase agreement for the acquisition of two operating solar plants for a total installed capacity of 21.7MWp. The plants were acquired were from one counterparty and comprise Bay Farm (8.1MWp, Suffolk) and Honnington (13.6MWp, Suffolk). Both plants were connected to the grid during March 2014 and are accredited under the 1.6 Renewable Obligation Certificate regulation. The acquisition will be funded by the Company’s existing resources. NESF continues to pursue further transactions from its pipeline of acquisition opportunities and expects to announce further investments in due course.

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Denver, Colorado August 30, 2017 – Iron Edison Battery Company, a Nickel Iron and Lithium Iron Phosphate battery system supplier for solar energy storage, selected Schneider Electric, the global specialist in energy management and automation, to supply back up power as part of a solar installation in California. This project utilizes Schneider’s Conext XW+ inverters in a system that will provide a residence with 61.2kW of continuous backup power and 166kW-hours of total energy storage capacity. and is a testament to the versatility and scalability of the Conext XW+ platform. The 61.2kW Conext XW+ Multi-cluster consists of nine Conext XW+6848 inverter/chargers configured to 120/208V 3-phase, which happens to be the same as the utility feeder for this 45,000 square foot residence. The Iron Edison LiFePO4 batteries are compatible with the custom charging profile provided by the Conext XW+ system.  The batteries are kept full and ready for a power outage in this AC coupled system. The grid-tie micro inverters allow PV to reduce the demand from the utility grid, and can produce power to the critical loads even after the grid goes down. “We have been working with Schneider Electric for years,” said Brandon Williams, co-founder and CEO of Iron Edison.  “They offer

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The U.S. Department of Energy’s National Renewable Energy Laboratory (NREL), CSEM and EPFL have taken an important symbolic step forward. Working together, they were able to demonstrate the high potential of silicon-based multi-junction solar cells: they raised the one-sun record conversion efficiency of III–V/Si solar cells to 32.8% for two junctions and 35.9% for three junctions. These achievements, published today in Nature Energy, are a world first in the highly competitive race to improve silicon-based solar cells efficiency, confirming the potential of this approach. When you choose to go solar, you have to go for the optimum trade-off between conversion efficiency and cost! Efficiency rates of more than 35% have been reached in the laboratory, but with cells that only use expensive materials. The existing photovoltaics (PV) market is rather dominated by cost-effective modules made of single-junction silicon solar cells, with efficiencies ranging between 17% and 22%. Just like many research centers and industrial players, NREL, CSEM and EPFL are working with what are known as 'multi-junction' cells, a technology that combines silicon with a cell that absorbs blue light from the sun more efficiently. The transition from a silicon single-junction cell to a silicon-based multi-junction solar cell has the potential to push efficiencies

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