Power & Energy Solutions

The premier renewable energy publication

PES was pleased to have the opportunity follow up and find out about the latest updates to KUBUS and the M10 Solar Campus, with Gregor Reddeman, the CEO at M10 Industries AG. Things are still looking good, with expansion and innovation continuing well in to 2018. PES: Welcome back to PES Solar/PV magazine. Thanks for talking with us. For our new readers would you like to begin by explaining a little about the background of M10 and how you currently serve the solar/PV industry? Gregor Reddemann: M10 Industries AG specialises in developing and producing highly efficient state-of-the-art cell connecting automation equipment. Based in Freiburg im Breisgau, Germany, in the so called Solar Valley, our young dynamic team of skilled engineers and technicians face this challenge under the leadership of solar pioneers of Günter Schneidereit, Reinhard Willi and myself Gregor Reddemann. Our M10 Solar Campus incorporates our development and technology centre, production and material testing, including preliminary acceptance, 24/7 service support and service. This enables us to provide our customers with ideal solutions. Our performance areas are perfectly synchronised to suit each other’s needs. This is achieved through the close connection to our subsidiary, SI Module – our module manufacturer, in a cutting edge

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Xander van Mechelen, CTO of Kipp & Zonen, dropped in to tell PES about the DustIQ, the simple missing link in a mature solar energy industry. It has been quite a year and 2018 is also full of promise. PES: We are pleased to welcome you back to PES Solar/PV magazine. For our new readers would you like to begin by explaining a little about the background of your organisation and how you currently serve the solar/PV industry? Xander van Mechelen: Kipp & Zonen is an instrument manufacturer founded in 1830 and in the last few decades the business and R&D have mainly focused on meteorological instruments, based on the measurement of solar radiation. In recent years solar energy has become a significant market for Kipp & Zonen; initially with traditional ‘passive’ analogue pyranometers and later we set the standard for digital, smart instruments. PES: We have been reading and hearing about your new DustIQ. Could you explain to us what it is? What motivated Kipp & Zonen to develop such a project? XvM: Sometimes it happens that in large industries like solar power there is still an opportunity to develop an instrument that is not there, but for which there is a

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Michael Jurchen, CEO of Jurchen Technology GmbH and Constantin Wenzlik CEO PADCON GmbH, met up with PES to tell us about their new partnership and what it will mean to the global solar industry. Yet another optimistic view of the future in our industry. PES: We are pleased to welcome you to PES Solar/PV magazine. Would you like to begin by explaining a little about the background of your organisations and how you currently serve the solar/PV industry? Constantin Wenzlik: PADCON GmbH was founded in 2007 and specialises in monitoring systems, plant communication and power plant controls for PV power plants. Since 2013 PADCON has also offered intelligent solutions with the Float Controller family, in order to prevent PID (potential induced degradation) on PV systems simply and effectively and to recover the affected modules successfully. The extensive product portfolio includes solutions for solar power plants worldwide. Michael Jurchen: Jurchen Technology is a manufacturer and wholesaler of photovoltaic system components since 2008 and is located in Kitzingen, Germany. We develop and manufacture various mounting and wiring harness systems, especially for photovoltaic ground base power plants. Our products are manufactured under the highest quality standards and thereby provide a long-lasting and profitable life expectancy. PES: We hear that Jurchen

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PV Plant downtime is dead time and therefore investors’ eyes light up when we can demonstrate exceptional PV plant uptime performances in capricious environments around the globe. But precisely how reliable does solar PV need to be? The industry’s aim, for sure, is to compete with traditional non-sustainable energy sources, such as coal and gas, as well as other renewable energy sources such as off-shore wind. Levelised Cost Of Electricity (LCOE) gives us a way to compare the cost effectiveness of each energy source and reliability is a key factor embedded in the calculation. If a PV plant breaks down, the operations and maintenance cost rise and the LCOE is less attractive. On a more intuitive level, if you ever think about your electricity supply, you never wish to imagine being without it. In the modern world, most of us take electricity for granted and find any power cut rather disconcerting. We like to think of it as a constant flow and so PV plants, being a significant source of electricity, need to better connect with this expectation. Clearly solar power systems need to be able to withstand prolonged sun exposure. But it is perhaps less well understood that they are also

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Demand for glass/glass PV module construction is growing due to the inherent benefits that allow both the back and front panel of the module to produce electricity. This is especially true in highly reflective environments like deserts, near water, rooftops, and above parking lots. The dual layers of glass also reduce the need for bulky structures that often cause hot spots that degrade or even burn modules produced with traditional aluminium frames. According to the International Technology Roadmap for Photovoltaics (ITRPV), glass used as the back-side cover material will increase in the next decade, with roughly 25 percent of all c-Si modules produced with glass/glass construction by 2024. Further, EnergyTrend reported that ‘even though the dual-glass design is not a fresh innovation, its market acceptance has rapidly expanded. Shipments of dual-glass modules from Chinese manufacturers grew to about 800~900MW in 2016.’ While more expensive than modules produced with plastic backsheet construction, glass/glass costs can be offset due to increased power output and predicted longer service life – including warranties of up to 30 years versus the usual warranty of 25 years for conventional modules. These improvements, plus factors like reliability and durability, become important considerations when looking at overall lower levelized cost

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PES caught up with Richard Reno, Senior Executive, Renewables Segment, GE’s Power Conversion business, to hear about their capacity to supply every aspect of a solar farm’s lifespan, the importance of digitalization and Predix, their open cloud-based digital platform. PES: We are pleased to welcome you to PES Solar/PV. Would you like to begin by explaining a little about the background of your organization and how you currently serve the solar/PV industry? Richard Reno: Sure. We are Power Conversion, GE’s electrification business. We provide electrical equipment and digital solutions that cover the life cycle of our customers’ energy projects. Now you see, energy demand will continue to outstrip supply in the years to come. To close this energy deficit, you need to continuously provide clean, affordable and reliable electricity. At Power Conversion, we do just that. Let’s take solar as an example. We are able to supply every aspect of a solar farm’s lifespan—from finance to equipment to digital solutions and long-term service. We were the first to launch a 1,500-volt inverter technology and the 1,500-volt system is rapidly becoming the industry norm. We are also introducing silicon carbide to inverters to further unleash efficiency gains, which reach 99 percent weighted EU level. Our

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PES: Welcome back to PES Solar/PV magazine. Thanks for talking with us. For the benefit of our new readers would you like to begin by explaining a little about the background of your organisation and how you currently serve the solar/PV industry? Hind Beaujon: Pfeiffer Vacuum is a leading company in the field of vacuum technology. Indeed vacuum is very critical for key enabling processes serving major industries that transform our daily life such as, telecommunications, connectivity, energy, medical, food, research and development… to list but a few. We have been active in all the above sectors for more than 125 years and we are continuously improving our industry knowledge and applying it to new applications, to provide the latest vacuum solutions servicing these key industries. It is just a natural move to develop our activities in key, vacuum emerging industries like Solar, LED and AMOLED which have gained momentum in the last ten years. PES: You are active in a number of industry sectors. How important is the Solar/PV business in China to Pfeiffer Vacuum? HB: As I said before, the solar segment has been a focus for Pfeiffer Vacuum for the past 10 years. Of course, as you may know, this industry is

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Ferroamp, a Swedish company founded in 2010, has developed a unique system that takes the integration of PV power and energy storage in facilities, to a new level. The product concept is based on a unique approach for managing phase unbalance in three phase systems. PES went to find out more about this latest technology. These unbalances occur when too many loads end up on the same phase conductor. This is a problem in Sweden as the fixed monthly grid fee is based on the size of the mains fuse. The lower the fuse rating, the lower the monthly grid fee. Three phase system reinvented The ACE technology automatically reduces the phase unbalance and neutral currents. Large single phase loads such as single phase charging points can be used without overloading the AC grid. Costly reinforcements can be avoided and grid fees can be reduced. Due to the ACE technology a new flexible inverter had to be designed. It had to be capable of dynamic power conversion from AC to DC, as well as DC to AC, with independent dynamic current flow in each phase conductor. Integrated trouble free AC charging Charging electric vehicles using AC often reduces the available supply capacity. This limits the charging

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Our industry continually strives to get better, smarter energy. Research and development means there are always new innovations on the market. PES brings you the latest in fast response sensors from EKO, for measuring solar radiation due to various cloud conditions. This plays an important part in the quality of converted energy from solar devices. Even though the solar radiation incident at the top of the Earth’s atmosphere is relatively constant, the amount of solar radiation arriving at the Earth’s surface is extremely variable. It depends on the location, date and time of the day, and on the atmospheric conditions. It is well known that absorption and scattering by gases, aerosols, and water vapour present in the atmosphere have attenuating effects on the incoming radiative power. It is also well known that the attenuation of the incoming solar radiation caused by clouds is larger than any other atmospheric component. Another atmospheric effect has gained interest recently, while being counter intuitive – clouds can also cause enhancement of the incoming solar radiation. Partially cloudy skies with broken clouds lead to multiple scattering and radiation reflection. At times this may result in increased irradiance from a portion of the sky exceeding the expected irradiance value

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A new generation, of highly flexible modular energy storage solutions, finally overcomes the standby mentality of the energy storage market. PES caught up with Alvaro Garcia, Managing Director of Storing Renewable Energy Ltd, part of EFT Group, official service partner for BYD B-Box in Europe, about the energy storage market trends visible at Intersolar Europe and BYD’s B-Box storage series. PES: Welcome to PES Solar magazine. We didn’t have the opportunity for a catch-up at Intersolar as it was really busy, so it’s great to have the opportunity to catch-up now. Energy storage has been one of the key topics at Intersolar Europe for the last four or five years – so what changed? Alvaro Garcia: I guess nobody in the industry would deny a connection between the development of the solar energy market and the evolution of energy storage solutions. 2017 was the fourth year ees Europe was held in parallel with Intersolar, which also reflects the close relationship between the two markets. Nevertheless, the development of energy storage implementation has been rather slow. To quote Maroš ŠefČoviČ, the European Commission VP in charge of the Energy Union: ‘The role and importance of storage have been underestimated for too long.’ Matt Roberts, executive

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