Science Meets Industry

Photovoltaics EU PVSEC

Science meets industry

The EU PVSEC is once again setting up camp this year in Valencia. While science meets technology at the conference, the latest innovations from the cell and module production industries can be admired at the associated trade fair.

136 Sun & Wind Energy 9/2010 Power solar modules!

Photo: Wilhelm Breuer he 25th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), which is Ttaking place at the beginning of September, has called up reinforcements. Under the aegis of the 5th World Conference on Photovoltaic Energy Conversion, this year’s EU PVSEC is being held together with the 36th US IEEE Photovoltaic Specialists Conference and the 20th Asia/Pacific PV Science and Engineering Conference. It is therefore no surprise that the conference once again promises to outdo Luxor high-quality solar itself in terms of superlatives: 4,500 delegates are expected to discuss the latest developments and cells with an efficiency trends at the conference, which will be holding more of > 17 % and positive than 1,600 specialist talks. Last year, there were around 1,300 lectures and almost 4,000 delegates. power tolerance The lectures are divided into six conference cate- peaking up gories: Advanced Photovoltaics, Wafer-Based Silicon Solar Cells, Thin-Film Solar Cells, Components, PV to + 6.5 Wp! Systems and Large Scale Deployment. A highlight of the conference will be the awarding of the 18th European Becquerel Prize, which is con- ferred for outstanding contributions to the development of photovoltaic solar energy. The award has been named after French physician Alexandre Edmond Becquerel, who discovered the photovoltaic effect in 1839. Last year, the prize went to Alexander Bett from Fraunhofer ISE for his contribution to developing concentrator solar cells. The trade fair has also grown again: 950 exhibi- tors from more than 100 countries are expected at the trade fair, which will cover an area of 80,000 m2. Visit us at PVSEC Valencia As would be expected, most of the exhibition area will 6th - 9th of Sept. 2010, be taken up by production system providers and so- level 3 / hall 1 / booth A21. lar cell and module manufacturers, who will respec- tively take up 37 % and 40 % of the space. The rest of the exhibition area will be filled by manufacturers of mounting systems, trackers, inverters, batteries, cabling and connector systems along with system suppliers and project developers. Luxor Solar GmbH Königstraße 26 ∙ 70173 Stuttgart ∙ Germany

Sun & Wind Energy 9/2010 Phone +49 711 888 88 - 999 ∙ www.luxor-solar.com Photovoltaics EU PVSEC/modules

cells allows for an efficient wiring concept that lowers Modules resistances inside the module, providing higher

The Spanish module manufacturer Isofotón is to present the ISF-240 in Valencia. Isofotón state that it is their “most powerful module to date”, with an output of 240 W and an efficiency of 14.5 %. Isofotón employ three instead of two conductive paths that are connected to the cells in order to minimise losses caused by electrical resistance. The module has a new circuit and an enhanced waterproof junction box, which will allow for improved heat dissipation. The aluminium frame of this new development is anod ised and features a 20 micrometres thick anti- corrosion coating. The ISF-240 is available now. There is more news from Isofotón apart from their 6 times 9 instead of 5 times 10: Centrosolar have product range. Since June, the company has had a equipped their SClass-Excellent module series with a new owner, the Spanish-South Korean consortium new cell array. Photo: Centrosolar Affirma-Toptec, and a new CEO, Angel Luis Serrano. The consortium state they want to place a € 50 million yields. The new module is available as of the fourth investment, largely intended to promote the develop- quarter of 2010. After its launch in Germany, it is ment of Isofotón in core markets such as Germany, planned to be introduced in Spain, Italy, France, the Italy, Spain and France. In addition, the manufacturer Netherlands and Greece. Booth L3/H1/C10

Trina Solar, who manufacture ingots, wafers and solar modules, are to present two new modules in Valencia: the high-performance utility-scale module TSM-PC14, and the TSM-DC80 with Quad-Max technology. The former is especially important for large ground- mounted plants and is fitted with 72 multicrystalline cells. Its peak output is at 265- 290 W. From the fourth quarter of 2010, the module will be avail Large modules, big plans: plans to expand internationally and develop new able in North America the Spanish manufacturer markets in Asia and the USA. In light of this, produc- and Europe. Isofotón wants to develop tion capacity is to rise to 500 MW during the next The second new capacities worldwide. three years. addition, the module Photo: Isofotón S.A. Booth L3/H1/C9 TSM-DC80, has been designed specifically for roof systems. Centrosolar AG bring along their new 54 cell module Thanks to its square to Valencia. The new item in the product range in- shape and the em- cludes four additional cells and an increased capaci- ployed “Quad Max” ty of up to 225 W in comparison to the previous technology, the mod- The TSM-PC14 is used in SClass-Excellent series. With the relaunch, the com- ule’s monocrystalline large utility installations. pany says they are responding to the wishes of many cells could collect far Photo: Trina Solar customers for a PV module with a high output and more sunlight than limited size. The new module consists of six strings conventional cells while avoiding the surface loss with nine cells each instead of 5 strings with 10 cells typical for octagonal cells. Trina Solar promise a per- each. It is therefore wider and shorter and thus pro- formance boost of up to 8 % compared to other vides for improved structural and torsional rigidity on monocrystalline modules on the market. The launch the roof. The new format aids the installer in handling of the TSM-DC80 in Europe and North America is the modules, which is reflected in shorter assembly scheduled for the first quarter of 2011. times. Centrosolar state that the additional row of Booth L3/H1/B5

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The Italian manufacturer FVG Energy, with production configuration. They are slated for series production in facilities in Shanghai, manufactures monocrystalline the fourth quarter of 2010. and multicrystalline PV modules for various applica- Booth L3/H3/B7 tions. At the fair, the company will present their broad range of modules with outputs ranging from 10 W to 290 W. Under the brand name “gehrtec”, Gehrlicher Solar Booth L2/H1/D30 AG from Dornach, Germany, brings products from their own research and development department to the market. With the new development gehrtec Front, In the development a PV façade system is available for the first time. The department of attachment for the curtain-type rear-ventilated sys- Sunways AG, re tem is based on common and approved façade sub- searchers are current- structures on which the gehrtec carrier rails are ly working on a new mounted. According to Gehrlicher, the use of large solar cell in the 6-inch laminates made by ENN Solar and Masdar PV with format. Photo: Sunways backrails stuck to the back makes the installation easier, meeting the demands of façade engineers in terms of cost, ease of installation, serviceability, design and functionality. The launch of the system in Germany is scheduled for Q4 2010 / Q1 2011. At the same time, the product is to be available in the Czech Republic, France, Greece, the UK, Italy and Spain. The gehrtec Intra has also recently been added to the product portfolio. This roof-integrated system is fully integrated into the roof in a way that the modules themselves serve as the water-repellent surface. To this end, First Solar modules are used as they can be individually removed from the roof. Attachment is achieved with profiled rails and rubber seals. To help the installer during the installation process, he re-

There is a new cell format available from Sunways AG. In March, the company, having worked with the Insti- tute for Solar Energy Research Hameln (ISFH), developed monocrystalline silicon solar cells with screen- printing metallisation and with over 19 % efficiency in the 5-inch format. They have now developed a pro- totype in the 6-inch standard format. Particular em- phasis was placed on a high efficiency of the rear side of the cells in order to improve the yield in the long- wave range of the solar spectrum. Sunways mention up to 5 % more output per cell. Booth L2/H1/B2 With the gehrtec Intra, Gehrlicher bring their first own roof-integrated system to the market. Photo: Gehrlicher Solar AG The Taiwanese manufacturer Neo So- lar Power (NSP) specialises in the de- ceives a pre-assembled mounting system. After at- velopment and manufacture of high taching the profiled rails, the modules are simply in- performance solar cells. The compa- serted into the holders so other tools are not re- ny, founded in 2005, is presenting quired. On request, the system can be configured for their “Perfect 18” monocrystalline so- different frameless modules. lar cell in the 6-inch format and an ef- Booth L2/H3/B12 ficiency of 18 % at their booth in Va- lencia. In addition, NSP is to present their multicrystalline solar cell “Per- The Japanese Kyocera GmbH brings a new high perfect 17”, which is also available in the formance module for installation on the ground or on 6-inch format. They state the cell industrial roof-mounted systems to the market. Alter- The new “Perfect Cell” line of achieves an efficiency of 17%. Both new develop- natively, it can also be used for conventional rooftop NSP should be ready for series ments are suitable for multicrystalline 245 W mod- installations. The KD240GH-2PB offers 60 cells total- production this year. Photo: NSP ules or monocrystalline 255 W modules with a 60-cell ling 240 W output – 5 W more than its predecessor.

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buildings. In addition to modules from manufacturers like Sharp, Schott Solar and REC, Enerpoint now also sell PV modules from Samsung and Sanyo. Thus, as Enerpoint say, they are the first European distributor for Samsung modules. Booth L2/H3/A13

The Taiwanese manufacturer Solartech Energy is to exhibit the 6-inch multicrystalline module M-156 at their booth. The efficiency of this new development is 15 to 16.7 % depending on the version, according to the company. Also new is the 6-inch module Fortis. Depending on the components, it has an efficiency of 16.6 to 17.4 %. Booth L2/H1/C23

Sovello AG have added a high-voltage module to their portfolio, thus offering both low-voltage modules for large open areas as well as higher voltage modules for small roof areas. The new high-voltage configuration of the T-series, which replaces the low-voltage configuration of the T-series, is characterised by a special adjustment to satisfy parameters of commercial inverters for Black frame, black cells, harmonious appearance of small installations. The design of small solar power the Kyocera module KD240GH-2PB. systems is thus simplified and the performance of the Photo: Kyocera whole system optimised. Booth L3/H1/A10 As the module measures 1,662 x 990 mm, there are two additional horizontal struts on the rear side of the module which provide for improved stability. The Canadian Solar is to exhibit two new module types module is certified for a load of 5,400 N/m². The de- from their NewEdge line at the fair. The CS6P-PX has sign of the module is such that the black frame goes 60 cells and is available in the 200 W to 235 W range. well with the dark solar cells to create an overall har- Thanks to its special frame design and the at- monious result. The company relies tachment system from the partner company on soldering instead of Zep Solar, the module can be installed quickly terminal connections for and easily. connecting the junction Another novelty is the all-black CS5A-MX. box. From the processing The 72-cell module is available in the 170 W to of the raw materials to 195 W range and impresses in particular with cell and module manufac- its uniform appearance. The rear is laminated turing, it all happens in in black and it comes fitted with a black ano- their own production fa- dised aluminium frame. cilities. Booth L2/H1/B15 Booth L3/H1/C18

The range of the Italian wholesaler and system The Canadian Solar provider Enerpoint in- module CS5A presents cludes solar modules itself completely in made of mono- and poly- black. crystalline silicon, thin- Photo: Canadian Solar film modules and single- and three-phase inverters for application in resi- dential and industrial

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The Arnold Group is presenting its combined surface and chamfering grinding machine 72/865 for silicon blocks. The system is designed for small and medium- sized production volumes. The process part of the machine bed is moulded with a mineral casting, which ensures considerable machine stiffness and high damping. The entire system weighs around

Flux pen from Balver Zinn Photo: Balver Zinn

For those who like soldering their solar cells themselves, Balver Zinn provides flux pens with which you can work by hand. Booth: L2/H4/A51a

US company BTU supplies thermal treatment products used for manufacturing solar cells. For example, the Tritan Metallization Firing System is used for the metallization of solar cells and provides a temperature gradient of 200 °C per second. By deploying sep- arated conveyors that can travel at different speeds The water consumption for during each working stage, the drying and cooling the 72/865 brick grinding 9.2 tons. The grinding machine uses little cooling wa- sections are not compromised. For this reason, solar machine has been reduced ter: the grinding process is fed with only 40 l/min cells leave the Tritan line at a standard temperature of by around a third. with up to 25 bar. The combined system can process 40 °C and optionally at 25 °C. Normally, temperatures Graphic: Arnold Group workpieces with widths and heights between 125 would be above 60 °C. The dryer operates in a tem- and 210 mm with a maximum length of 500 mm. The perature range between 100 and 350 °C, and the fur- grinding spindles, with a diameter of 250 mm, work nace unit between 200 and 1,000 °C. The Tritan sys- at a maximum rate of 60 m/s and are driven by 9.1 kW tem works with wafers with edge lengths of 125 x motors. 125 mm and 156 x 156 mm. Recently introduced in May, the optional Arpat For phosphor diffusion, BTU provides the Meridian software enables you to record and analyse the pro In-line Diffusion system. Meridian operates between cess data from the machine. Using various sensors, 800 and 1,000 °C in order to drive phosphor from a the system is able to capture data on the water and coating into the silicon wafer. The temperature can be energy consumption, axis positions, torques, cutting controlled to a preciseness of ±2 °C. Meridian can be and feed rates and saves these data in a database. operated with a maximum throughput of 1,500 wa- The parameters can be visualised directly on the ma- fers per hour. The system is loaded with wafers with chine or using a web browser via a local network. The edge lengths between 125 and 210 mm. system is set to go on sale in January 2011. Booth L2/H2/A5 Booth: L2/H2/A40

Balver Zinn from Germany is presenting its range of solders, anodes and special cored and solid wires at EU PVSEC. Through its Cobar subsidiary, Balver Zinn is also now also offering soldering flux that can be used to treat the surface of diverse oxidised surfaces. The flux is used when stringing solar cells. The conducting paths are dipped in the flux or sprayed with it in order to be cleaned and moisturised. The range of products covers alcohol-based, low-solvent and The Tritan firing furnace can be configured to accom- solvent-free solutions. For example, the solutions modate both single and dual lane processing. Its from Balver can be used to clean difficult surfaces flexibility enables a 30 or 60 MW output on a single such as AgAl. belt width. Photo: BTU

144 Sun & Wind Energy 9/2010 The Italian film manufacturerCoveme is presenting a laminate has an air moisture permeability of just new innovation from its dyMat PYE film product 2.40 g/m2d. The breakdown voltage is just 20 kV. range, which is used for the rear sides of PV modules. Booth: L2/H4/B17 The polythene-based dyMat PYE 3000 film, which was developed together with DuPont Tiejin Films, is named after a 3,000 hour damp heat test passed by Routine temperature profiling gives manufacturers the new product. Coveme thus assumes that the ser reliable data to optimise their processes, enable vice life will last considerably longer than 25 years. process control and make corrections when required. The cell side of the film is coated with a 100 μm By analysing the profile they are able to verify the thick primer that offers adhesion of at least 40 N/cm quality of products, increase throughput and solve against EVA (ethylen vinyl acetate). Corona treatment production problems. Datapaq from Cambridge (UK) is also available on request, which increases this val- specialises in monitoring temperature profiles. With ue to more than 80 N/cm. The primer is available in its SolarPaq systems, the company provides different colours and can also be transparent. The temperature-profiling solutions for contact firing,

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Sun & Wind Energy 9/2010 145 Photovoltaics EU PVSEC/Production technology

Maschinenbau Gerold GmbH has expanded its product range this summer with the HMA system, which can be used to seal the edges of thin-film modules with liquid butyl. Although butyl tape is normally deployed for this, Gerold claims that using liquid butyl improves the quality of the sealing. For example, the edge sharpness and application preciseness is great- er relative to adhesive tape. Less material is also used than with tape, as there is no waste material and liners are no longer needed. Instead, the liquid butyl can be delivered in comparably cheap vessels. Depending on the throughput, one or two dispensers are deployed that apply the butyl to the module edges, achieving cycle times of between 25 and 60 seconds per module. The HMA system can be expanded by also cutting and inserting films in the butyl frames. As the third production stage, the HMA system is also able to combine glass-glass modules. Booth L2/H2/D12 Datapaq offers solutions to monitor temperature profiles anti-reflective coating and lamination processes. in contact firing, anti-reflective These operations are all key to the quality of photo- As its name would suggest, British adhesive tape coating and lamination pro voltaic cells. The SolarPaq system travels through the manufacturer Hi-Bond Tapes relies on adhesive tapes cesses. Photo: Datapaq furnace or thermal process, measuring a time temper- to seal modules. The reason given by the company ature profile directly from the product. was the long curing time required by liquid sealing The SolarPaq Anti-reflective Coating System pro- material, whereby adhesive tape enables modules to vides temperature profiles from the solar cells as they be further used more quickly. Hi-Bond Tapes relies on pass through the silver nitride coating process. This acrylic adhesive tapes, which promise to provide im- is typically conducted using a plasma sputtering pro proved long-term stability compared with conven- cess. For the first time, manufacturers can now mon- tional polyethylene or polyurethane adhesive tapes. itor the cell temperature profile even when the plas- They are temperature-stable, impermeable to mois- ma is energised. According to Datapaq, this system ture and UV-stable for temperatures between -40 and has been designed so that it simply takes the place of 160 °C. Depending on the model, acrylic tapes have one of the cells in the carrier, which means that it is an 180° peel strength ranging between 3.1 and not necessary to modify the expensive carrier. 3.35 kg/cm2 and a tensile strength between 6.8 and Finally, the SolarPaq Vacuum Lamination System 5.5 kg/cm2. Without requiring any special pre- is used to profile the final assembly stage of the solar treatment, the tapes adhere to aluminium, glass as modules. An all-new thermal barrier ensures that the well as rear-side films and rails. data logger is protected not only from the heat creat- Booth L2/H4/A37 ed from the lamination process but also from the applied external pressure. A unique external barrier frame prevents stress points occurring on the vacuum Indium Corporation will be featuring its newly devel- membrane. oped copper-gallium (Cu/Ga) rotary sputtering target Booth: L2/H 3/D59 at the trade fair in Valencia. These targets are made by the company’s proprietary vertically integrated process, which uti- The HMA production lises aerospace cell from Gerold can powder metallurgy also cut and insert technology. Ac- Indium Corporation will films and combine cording to Indium feature a new copper-gallium glass-glass modules. Corporation, the rotary sputtering target. It therefore synchro- process results in Photo: Indium Corp. nises three important a consistently ho- production stages. mogeneous alloy, with low contaminate levels and Photo: Maschinenbau Gerold consistent density throughout the target. Targets can be ordered in chemistry ranges from 50 to 80 % Cu atomic weight, with Ga making up the balance of the alloy. They are produced as a monolithic material that is bonded onto the backing tube during Indium Corporation’s unique hybrid consolidation process. Booth: L2/H4/A11

146 Sun & Wind Energy 9/2010 SolarSpec™ – Optimised Interconnect Solutions for the Solar industry

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The laminators are modular in design and can also be expanded during ongoing production. For example, the laminators can be first of all set up hori- zontally and then later stacked like pallets. Each laminator is operated autonomously, so that if a laminator is being serviced, the production on the others can continue. The heating behaviour of the heating plates can also be individually configured. For example it is possible to work with circulating oil or several heating levels. All electric and hydraulic connections for the heating plates are positioned outside the vacuum chamber. Furthermore, the heating elements do not have direct contact with the thermal oil. If required, it is possible to set the temperature to the nearest ± 1 °C. It is also possible to lami Booth L3/H1/D31 nate rubber substrates, tiles The German InnoTech company was founded in 2009 and marble to photovoltaic by the former Managing Director of Meier Solar elements in an Incapcell Solutions, Hans-Gerd Stevens. Although the company At the Manz Automation AG booth, trade fair visitors laminator. is still very young, its range of Incapcell laminators of- can find out about its new CIGS production technolo- Photo: InnoTech fers a very wide spectrum of lamination possibilities. gy, which Manz has added to its production range For example, the laminators enable inverse-lamination, through a licence agreement with Würth Solar GmbH. utilising a heating plate beneath the modules to pre- The production line is based on the technology from warm them. Pressing the plate against a second heat- Würth Solar, which has been operating around the ing plate above the modules enables rapid heat trans- clock in a 30 MW plant since 2006. The production fer. The process also enables very rapid throughput lines can produce thin-film modules with a peak effi- rates. For example, fast-cure EVA processes can be ciency of 12.8 % across an area of 600 x 1,200 mm. achieved in 9 minutes and ultra-fast cure processes can Würth’s CISfab in Schwäbisch Hall is also available be achieved in less than 7 minutes. When deploying for further developing the production technology and thermoplastic encapsulation materials such as PVB or qualifying new processes and materials. silicon, the Incapcell laminators achieve process times In addition to its thin-film technology, the compa- between 12 and 13 minutes. ny is also presenting its range of products for crystal- A complete heating and cooling process can also line silicon photovoltaics. For example, the company be realised in the laminators in which an upper and offers a one-step selective emitter. Using a pulsed la- lower membrane are pressed against the respective ser that scans the cell surfaces, this generates local- upper heating and lower cooling plates. This makes ly highly doped areas by diffusing liquid-phase phos- the downstream transportation to a cooling station phorus from PSG glass. The conduction paths are superfluous. then specifically applied to these areas. This produc-

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On-roof Sigma Open terrain Mounting systems In-roof for Photovoltaics Flat roof Open terrain DIN-certified: ISO 9001 *25th EU PVSEC ** Los Angeles Valencia Kentia Hall Mounting Systems GmbH • Tel. +49 (0)33708 529-0 • [email protected] • www.mounting-systems.de Stand: L3|H1|A9 Booth: 5219 lished a reputation in the semiconductor world for Manz’s one-step se- lead frame plating applications. According to Meco, lective emitter works the CPL solution offers tangible improvements in with 125 x 125 mm2 terms of cell efficiency: a fine line and seed layer of and 156 x 156 mm2 silver paste is printed onto each cell, whereby the wafers. electrical conductance of the contact finger is Photo: Manz Automation further enhanced by electroplating either Ag or Ni-Cu-Sn onto it. This produces a narrow contact finger while simultaneously improving the resistance value; this in turn improves the absolute cell efficiency by up to 0.5 %. This also reduces the consumption of costly tion stage enables absolute solar cell efficiency im- silver paste, as only a narrow and provements of up to 0.5 %. The selective emitter has thin seed layer is required. The total a throughput rate of 1,200 or 2,400 wafers an hour, CPL capacity is 50 to 100 MW / year. In ad- whereby the laser operates with a preciseness of dition, the Meco CPL offers other interesting ± 10 μm. The process can be used for all crystalline features such as vertical cell transportation, which silicon cells deploying n-doping and front-side metal- reduces the drag over of chemicals compared with lization. It is also possible to retrofit existing produc- plating methods using horizontal cell transportation plants. tion. This enables a very low consumption of chem- Booth L2/H2/D13 icals and considerably reduces the amount of The Meco CPL improves cell wastewater. A unique contact belt design makes it efficiency by up to 0.5 % by possible to plate on the front side, rear side or on increasing the conductance At EU PVSEC, Meco Equipment Engineers BV from both sides. The CPL also offers two metal alterna- of the contact fingers while the Netherlands will be presenting its Cell Plating tives: Ag or Ni-Cu-Sn plating. These can be used in simulataneously reducing the Line (CPL) for the metallization of crystalline solar applications where metallization is applied directly amount of Ag paste used. cells. The Meco CPL is based on the proven concept to silicon. Meco promises an overall ROI of less than Photo: Meco provided by the Meco EPL, which has been installed one year. Anz210x144NEU_2more than 10.08.2010 300 times worldwide 20:46 Uhr and hasSeite estab 1 - Booth: L2/H2/A22

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Meier Solar Solutions is presenting its new Stacolam 10x23/17/TSL stack laminator, which with up to 10 trays can attain a capacity of up to 250 MW a year. In contrast to its predecessor, this new model has an ac- tive pin lift for each tray. This means that the pins are not forcibly guided and, when the membrane is pressed on, the pins are not automatically reinserted but are independently controlled, as is the case with conventional laminators. This increases the process security of the machines. The individual trays are sep- arated to enable the laminator to also operate when not fully loaded. Trays not required are switched off at The new vacuum conveyor transports wafers overhead at a speed of two metres per second. Photo: Montech

fixed to standardised workpiece supports made of high-strength plastic (PET). For gently transporting thin-film modules and panels between individual process stations, Montech provides twin-, triple- and quadruple-belt conveyors with cogged belts. The transport conveyor for modules has two different drive versions with a spur gear motor as well as de- fined acceleration and braking ramps. Booth L2/H2/C6

Oerlikon Leybold Vacuum is presenting its new Dryvac dry screw technology pump series for produc- ing thin-film silicon solar cells. The Sprinter and The Stacolam Enduro versions of the Dryvac system have optimised 10x23/17 TSL stack the press of a button via the process control system. pumping speeds at pressures >10 mbar to provide laminator can operate It is also possible to service the vacuum system dur- fast pump downtimes. These models are especially with up to 10 trays. ing ongoing operation. This enables a vacuum pump suited for short-cycle operation. Models from the Photo: Meier Solar Solutions to be activated while a second one is undergoing Dryvac Champion range were designed to provide servicing. high reliability in harsh process conditions. They are The new stack laminator utilises the so-called TSL optimised for handling typical production gases used system that encapsulates the laminate in three in the photovoltaic industry. The energy consumption stages. After the conventional lamination, the lami- of the pumps is relative low. With a pumping speed of nate is pressed in a heating press and then in a cool- 650 m3/h, they have a power consumption of 7 kW ing press. The presses are based on a concept that below 20 mbar. Depending on the model, a vacuum dispenses with membranes and hydraulic surface from 1x10-2 to 1x10-3 mbar can be achieved. pressure. Booth L2/H2/C4 The stack laminators are modular in design and can also be subsequently adapted to meet the customer’s current capacity requirements. For example, a 6-tray laminator can later be expanded to 10 trays. Booth L2/H2/A29

Montech is showcasing a new vacuum conveyor that transports wafers overhead at a speed of two metres per second. The vacuum conveyor enables several wafers to be handled at the same time. In contrast to conventional conveyor systems, the conveyor belt does not require return journeys. A further product innovation for transporting carriers is the use of a flow- through transfer system. In accordance with the as- The Dryvac modules minimise energy and footprint sembly processes, this enables the carriers to be au- demands, delivering a maximum on performance, tomatically fed from one conveyor belt to the next and flexibility and reliability. through the necessary workstations. The carriers are Photo: Oerlikon

150 Sun & Wind Energy 9/2010

Photovoltaics EU PVSEC/Production technology

Reis Robotics (Germany) is appearing in Valencia with in high quality refined silicon at a lower production two innovations: the company’s newly developed, price. The first IDSS unit is already available for automatic electroluminescence system for measuring testing, live demonstrations and material pre- the strings and the matrix makes it possible to iden- production. tify and immediately reject faulty or Booth L3/H4/A5 damaged solar cells. This is achieved automatically with a high-resolution camera-based system within a few sec- Schiller Automation has introduced a new junction onds. This enables defective cells to be box system, combining surface mounting and con- quickly repaired or replaced and imme- tacting application technology, which is designed for diately used again in the production both crystalline and thin-film photovoltaic modules. process. An expanded system enables The system is fully automated in production and re- the entire matrix to be evaluated prior quires no manual intervention. The contact ribbons to the lamination process. This new have no de-orientation pre or post lamination. This quality assurance system, which inter- enables, for example, cycle times of 20 seconds to be venes at a very early stage in the pro- achieved for 60 cell crystalline or thin-film modules in duction process, prevents faulty cells any GEN5 format. In collaboration with Henkel, a spe- from rendering modules unusable. An- cial adhesive system has been developed for this ap- other major advantage for manufacturers is that the system can be easily retrofitted into existing lines with min- imum expenditure. The second highlight in Valencia relates to the fully automatic assembly of junction boxes. In this process, the contacting and installation of the junction boxes occur after the strings have been laminated in the module. Accord- ing to Reis Robotics, distinguishing Automatic error recogni features of this process include its high security and tion (red areas) on savings potential because it enables several stages the cells following the to be omitted such as foil stamping and manual electroluminescence threading of contact leads prior to lamination. In ad- test enables faulty cells dition, because ethyl vinyl acetate is not released to be rejected from the during lamination, this prevents soiling of the lami- Junction box contacting system from Schiller production. nator membrane. The automatic assembly process Automation Photo: Schiller Automation Photo: Reis Robotics enables savings to be made and can reduce the required amount of contact leads by around 10 %. The plication. The concept behind this innovative one- automatic positioning and connection of junction step SMT, including electrical contacting, was devel- boxes can also be retrofitted in production lines at oped on the basis of Phoenix Contact junction any time. box technologies. Both Henkel and Phoenix Contact Booth L2/H 2/D11 are strategic processing partners for Schiller Automation. Booth L2/H2/C8 A directional solidification furnace for preparing poly- crystalline silicon will be introduced to visitors at EU PVSEC by Italy’s Saet Group, the international induc- Sono-Tek Corporation from the USA is presenting its tion solution provider. The company is launching its ultrasonic system for applying anti-reflective coat- new line of IDSS products for refining silicon. The di- ings to solar glass. The HyperSonic System is de- rectional solidification furnace for preparing poly- signed to coat large glass areas up to 122 cm in crystalline silicon is based on the induction technol- width. The procedure is considered to be cheaper ogy deployed by the group since 1966. This unique than traditional CVD and PVD processes because it process was developed in a project launched 2 years operates more quickly and does not require a vacu- ago as part of a study conducted in collaboration with um. The constant ultrasonic vibration of the nozzles the UCLA, USA. Saet claims that it is a “groundbreak- prevents the nano suspensions commonly used in ing solution” that reduces power consumption by anti-reflection coatings from agglomerating. The sys- more than 25 % and increases the global furnace tem can control the deposition thickness and the throughput by 20 % in comparison to current conven- droplet size by varying the vibration. These proper- tional DSS electric furnaces. The IDSS’s unique fea- ties also improve the quality of the coatings relative tures do not include wearing components such as re- to conventional nozzle systems, as the ultrasonic sistors and an independent heating zone fed by the nozzles create a pressureless atomised spray. This latest generation of IGBT power devices. This results means that the droplets coming off the nozzle tip

152 Sun & Wind Energy 9/2010 KSE_AnzBruecke_A4_EN_Stoerer_Valencia.indd 1 21.07.2010 10:47:12 Uhr Photovoltaics EU PVSEC/Production technology

a movement with future

25th EU PVSEC Valencia 6 – 9 september 2010 mp-tec: level 2, hall 3, stand C10 The HyperSonic system from Sono-Tek is equipped with a high- have very little kinetic energy and are deposited on speed reciprocator (up to 2 m/s) the substrate at very low velocity. This results in the for industrial volume manufactur droplets settling onto the substrate without bouncing ing. Photo: Sono-Tek off. This is the key reason for the dramatic reduction in overspray relative to pressure nozzles. Booth L2/H4/A45

At this year’s EU PVSEC, the German teamtechnik company will be hosting live demonstrations of its TT1200 stringer several times a day. Although the stringer is not really new, it has undergone many improvements since last year. For example it is now more compact and can be upgraded more quickly than the previous version. The system has also been improved in terms of noise levels and energy consumption.

single axis tracking system by mp-tec

This single axis PV tracking system represents an affordable and efficient alternative to fixed PV module installation on rigidly aligned module mounts and generates an average of up to 30% more yield than fixed systems.

mp-tec GmbH & Co. KG W.-C.-Röntgenstraße 10 – 12 16225 Eberswalde, Germany phone: +49 (0) 33 34.59 44 40

The previous version of the TT1200 stringer is already As before, the stringer operates at a rate of 1,200 being used in over 100 systems cycles per hour, which it achieves on just one track. A throughout the world. Photo: special hold-down device is used to separate the ac- teamtechnik tual soldering process from the cell handling process. During the holding-down process, the connectors are simultaneously positioned on the cells. Depending on customer requirements, the stringer can work with www.mp-tec.de

154 Sun & Wind Energy 9/2010 light, laser-soldering technology or with adhesive applications. The new compact version is also being installed in teamtechnik’s new standard 50 MW system. This consists of two TT1200 stringers and a lay- up. Thanks to an integrated 6-axis robot, the company also promises considerable flexibility that enables the system to quickly adapt to different applications, cells and glass sizes. Booth L2/H2/C15

At PVSEC, Tyco Electronics is presenting its new, medium-sized four-rail junction box for solar module foil connections. Thanks to its low profile of just under 13 mm, the compact junction box can be easily mounted to the rear side of solar modules using silicon adhesive or double-sided adhesive tape. The flat construction has been achieved using surface mounted device (SMD) diodes, which are mounted on very wide internal power rails. With its decentralised two-rail junction box, Tyco offers an interesting alternative to the standard type of centralised junction boxes normally used. With this concept, two junction boxes are positioned in separate corners of the solar module with an additional box in the centre. Compared with the centralised junction boxes commonly used at the moment, the decentralised design requires 50 % less jumper cable to connect to the next solar module as shorter cross connections can be used. Both products accord with the IEC 61215 ed.2 (VDE V0126-5) specification. Booth L3/H2/D43

US-based Dow Corning Corp. has expanded its product range with two new products: the PV-8080 Neutral Solar Solutions Sealant and PV-7321 Potting Agent. The PV-8080 Neutral Sealant provides long-term bonding and protection against moisture, mechanical and thermal Reliable and shock, and vibrations in framing applications. The silicon-based sealant bonds to aluminium, glass and Sustainable Systems various laminates. The sealant’s elasticity allows expansion and contraction during exposure to harsh Easy cost reduction, quality increase and new environments, and the fast tack-free time facilitates design options – with fast curing high strength processing. bonding and sealing systems. The PV-7321 Potting Agent protects against corrosion and moisture, increasing the reliability and Call us to learn how our innovative and approved protection of junction box components. It can be dis- solutions for the PV and Solar Industry can help you pensed manually or by using already available meter to achieve your targets. Sika is a leader in process mix equipment for automated dispensing. materials used for sealing, bonding, reinforcing and Booth L2/H1/B11 protecting. We commit to the highest product quality and service standards – all over the world. At the trade fair, Kenonsistec is presenting its vacuum system for depositing thin layers on large sur Visit us at 25th EU PVSEC faces, which can be used for manufacturing thin-film from 6th - 9th September 2010 modules or solar thermal collectors. In addition to Feria Valencia, Spain physical vapour deposition (PVD), Kenonsistec pro- Booth D5, Hall 2, Level 2 vides systems for plasma enhanced chemical vapour deposition (PECVD) and cathode sputtering. Booth L2/H4/A30 Sika Services AG, Tueffenwies 16, CH-8048 Zurich, +41 58 436 52 87

Sun & Wind Energy 9/2010 www.sika.com Photovoltaics EU PVSEC/Production technology

The Belgium based research company Imec will show- Regarding Imec TPV research, Imec developed an case its latest advances in solar cell technology, such improved processing technique for germanium-based as “record efficiencies on crystalline Si solar cells fab- thermophotovoltaic (TPV) cells resulting in significant ricated on a quasi industrial process”. reduction of cell cost, an essential step to develop a One of Imec’s highlights will be larger area solar market for thermophotovoltaic applications. Imec’s cells based on an epitaxial thin-film silicon technolo- newly developed TPV cells are fabricated on germani- gy. Imec makes use of a process called epitaxial um substrates with a rough surface, instead of the growth. This means, small silicon crystals grow on a traditionally used substrates with expensive mirror- substrate and adapt the same crystal structure that polished front surfaces. the substrate has. With this process, Imec has Back in 2009, Imec launched an industrial affilia- reached cell efficiencies of up to 16.3 % on high-qual- tion programme (IIAP) on crystalline Si PV, which ity substrates and efficiencies of up to 14.7 % on companies such as Schott Solar, Total, GDF Suez and low-quality substrates, the latter one showing the po- Photovoltech already joined. tential of the technology for industrial manufacturing. Booth L2/H3/A30 The results were achieved within Imec’s silicon solar cell industrial affiliation program (IIAP) that explores and develops advanced process technologies aiming Gebr. Schmid GmbH is showcasing a whole series of a sharp reduction in silicon use, whilst increasing cell products for processing and handling wafers and solar efficiency. “By implementing copper-based contact cells. These include an inline system for pre-cleaning schemes, we can further increase the efficiency mak- and de-gluing sawn wafer blocks. It cleans the wafers ing epitaxial thin-film silicon solar cells on low-cost using a “ceramic beam” process in which the cleaning wafers an interesting industrial technology.” said Jef agent flows through interior channels and kerfs creat- Poortmans, Director of Imec’s Energy/Solar pro- ed when the ingot is sawn in the ceramic beam, before gramme. being distributed evenly over the entire wafer surface. Furthermore, Imec developed a spray coating The system achieves a cycle rate of four wafer blocks technique for organic solar cells that reaches an ef- per second and is suitable for 500 mm and 1,000 mm ficiency of more than 3.7 – the same as reference plates. The company is also presenting an inline mod- spin coated devices. With the development of two- ule for light-induced galvanisation of solar cells on the solvent systems for each of the materials to be de- emitter side. In the first step, the front-side conducting posited, Imec achieved smooth and uniform poly- layers are applied, for example using the inkjet print- mer thin films with excellent optical and electronic ing process. In order to improve the electrical conduc- properties via a large-area, roll-to-roll compatible tivity of the contact lines, silver is applied galvanically technology that could replace spin coating and ena- in the second step. The illuminated solar cell provides ble the inexpensive production of organic solar the required polarity for the cell’s front side. cells. Booth L2/H2/C10

The inline wafer cleaning system from Schmid is also suitable for very thin wafers. Photo: Gebr. Schmid

156 Sun & Wind Energy 9/2010 MAKING MODERN LIVING POSSIBLE

Streamline installation with built-in web server

TripleLynx Pro takes PV system surveillance to another level by integrating monitoring and data storage capability. Ethernet communication provides high-speed data exchange. Bring simplicity, ﬂ exibility and performance to your PV plant with TripleLynx Pro. New Horizons for String Inverters

Visit us at the 25th EU PVSEC, Hall2, Level 3, Stand B9

2in1 Inverter and monitoring in one unit

The built-in web server lets you access data 24/7 via the Internet, adjust settings remotely and store key plant statistics for up to 20 years – all without the need for any additional hardware.

Danfoss Solar Inverters A/S, Ulsnaes 1, DK-6300 Graasten, Denmark, Tel. +45 7488 1300, Fax +45 7488 1301 www.triplelynxpro.com E-mail: [email protected] Photovoltaics EU PVSEC/Monitoring Monitoring and communication

At EU PVSEC in Valencia, the SEM S.r.l. company from tary add-ons such as remote configuration of the Italy is launching its SPIM electronic device. It con- Solar-Log device or centralised fault monitoring and sists of two electronic units: the SPIM Slave and the reporting for several systems. This version enables SPIM Master. up to four email addresses to be set up for sending Whilst the Slave is embedded in the PV module yield and fault messages. Solar-Log WEB enables in- junction box, the Master is a stand-alone unit. Ac- stallers and wholesalers to monitor and evaluate all cording to the company, SPIM enables PV modules installed systems on a single website. The “Com- to be integrated into wireless communication net- mercial” version is conceived as a professional plat- works. Each PV module is treated as a single unique form. It provides, for example, an invoicing module node within each network, whereby the network is for automatic billing as well as a project administra- driven by an external “master coordinator” that con- tion system with all relevant data. Finally, the “Serv- trols up to 200 PV modules. According to the manu- er Edition” is a solution for operators and investors facturer, the main functions include monitoring the who monitor installations ranging in number from functional parameters of every single PV module, 500 to well in excess of 1,000 systems. comparing actual and expected field performances, Booth L3/H2/A22 providing theft and fire protection and measuring the power output of every single PV module regardless of the size of the solar farm. The Slave device monitors electrical parameters such as current, voltage, power and temperature, and compares the measured values with the manufacturer’s specifications. Booth: L2/H3/B29

Solare Datensysteme GmbH is coming to Valencia with its new evaluation and monitoring programme. Its Solar-Log WEB is a monitoring portal with six different expansion levels. The scope of services is tailored to different users, ranging from private and commercial operators to installers and wholesalers who want to monitor several systems. Its free “Self Made” Vitronic’s colour line scan camera system inspects solution enables private solar cells with a 64 megapixel camera. system operators to cre- Photo: Vitronic ate and configure their own homepage. The so- At EU PVSEC in Valencia, Vitronic is presenting lution offers basic func- its newly developed colour line scan camera tions ranging from event system in its Vinspecsolar product range. The latest reports, yield overviews system solution combines colour and print inspec- per installed kW to the tions of cell front sides. The heart of the new system From private to professional: calculation and depic- is a high-resolution colour line scan camera that system monitoring using tion of avoided CO2 emissions. Operators of existing provides 64 megapixels of image information per Solar-Log WEB systems and users of the previous Solar-Log Internet cell. This is made possible by four individual lines Photo: Solare Datensysteme GmbH service can continue to use the previous Solar-Log for the colour ranges red, green, blue as well as “Home Edition” in its familiar form as the Solar-Log black and white, which each has a resolution of WEB “Classic 1st Edition”. 40 µm. Together with LED lighting, this ensures a Solar-Log WEB “Full Service” is a service for pri- very high print quality and colour classification. It vate customers who monitor and service their sys- can be used to inspect colour, surfaces, edges and tems with professional support from installers. In geometries. addition to the basic functions, it offers supplemen- Booth L2/H3/C19

158 Sun & Wind Energy 9/2010 Class AAA Module Tester certified by TÜV Rheinland

BERGER Lichttechnik GmbH & Co. KG Wolfratshauser Strasse 150 · D-82049 Pullach · Germany Phone ++49 (0)89 793 55 266 · Fax ++49 (0)89 793 55 265 www.bergerlichttechnik.de Offices in the US and Taiwan

ber-1050_anz_tuev_210x297_final.indd 1 18.08.2010 14:49:28 Uhr Photovoltaics EU PVSEC/measurEment Measurement technology

As German Intego GmbH from Erlangen emphasizes, microcrack detection is an important tool for wafer, cell and module production. The company introduces the Taurus Cell system for automatic detection of cracks in single wafers and cells. A similar technol ogy, working on stacks of wafers and cells, has already been shown at the Photovoltaic Technology Show in April this year. According to the producer, Taurus Cell works contact-free and generates images of cells which are suitable for automatic error detection. Thus, results are not disturbed by metallization and the natural grain structure. They can be presented on an operator monitor, where the user can change system parameters such as minimal error size, super- vise inspection results, and handle external signals.

Taurus Cell system for automatic crack detection Photo: Intego

The inspection system is available as an inline tool. Intego also offers several other models, for example for integration into stringers, a stand-alone system including sorting out of defective cells and a manual station for single cell inspection. The inspection system consists of a vision cabinet including the maintenance free illuminations and cameras, sensors and light barriers as well as the industrial PC with monitor, keyboard, and a storage system. Booth L2/H2/D9 BATTERY SUPPLIES NV/SA IZ Snepbeek 5A | Lindestraat 89a | 8790 Waregem - BELGIUM | Tel. +32 (0)56 61 79 77 Fax +32 (0)56 61 79 55 | [email protected] | www.batterysupplies.be Atlas MTT GmbH from Germany is specialized in weathering durability testing equipment and services.

160 Sun & Wind Energy 9/2010 For Valencia, Atlas has announced the presentation of several products and services for module, raw material and component manufacturers. For example, visitors can see the portable laboratory device SolarTest 1200 for the testing of small-sized samples. SUNTEST XXL+, the largest flatbed xenon instrument in the company’s assortment, is designed for the testing of crystalline and thin-film mini modules. According to Atlas, the XR360 PV Module Weather Du- rability Testing System is their newest testing instrument for the PV industry and integrates advance- ments in environmental chamber and xenon solar simulation technology. Three models are available, and Atlas emphasizes that all have the capacity to test over 90 % of current PV modules. Further, the XenoCal Solar sensor is a tool ensuring that the light source used for PV preconditioning tests is within the specification. Last but not least there is the programme Atlas 25PLUS: instead of comprising isolated, individual stresses targeted at infant mortality, Atlas 25PLUS consists of a series of combined stresses applied to Connect to the sun! the modules. It is conceptualized as an analog of the long-term exposure to the elements. Booth L2/H3/D41 www.multi-contact.com

German Sentech Instruments GmbH from Berlin de- Solar line velops, manufactures and sells worldwide control in- Connectors for Renewable Energy strumentation for thin film metrology and plasma process technology. With SenSol Haze, Sentech presents a horizontal large area mapping of haze and film thickness of TCO on glass sheets. It is designed for quality control of TCO films in PV manufacturing of thin film solar cells. According to the company, the special design of the system allows measurements at every position of the glass sheet, especially at the edges. The loading is possible manually or by robot, and the measurement speed is high enough to allow the integration of the system into a manufacturing line. Additional sensors for the measurement of sheet New PV connector MC4PLUS

Multi-Contact‘s new MC4PLUS connector complements the MC4 series. With tried and tested MC Multilam, crimp and strain relief technology. Innovative integrated sealing system for high protection categories IP65 and IP67. The snap-in lock can only be opened with a special tool, providing maximum dependability. Pre-assembled with conductor cross sections 1,5mm², 2,5mm², 4mm² or 6mm². Designed for the use in high volume cable assemblies made by MC.

SenSol Haze from Sentech Instruments Photo: Sentech Visit us at: EU PVSEC 6.– 9. Sept. 2010, Valencia - Spain, Hall 2 / Level 3, Booth B17 More events: www.multi-contact.com > News > Exhibitions resistance, of optical constants and band gap, of current voltage characteristics and quantum efficiency are available. As Sentech announces in a press re- lease, Swiss Oerlikon Solar is one of their key reference customers of the SenSol Haze to monitor the spectrally resolved haze and thickness of TCO layers on glass panels. Booth L2/H4/A16 Multi-Contact

Sun & Wind Energy 9/2010 Technical Solutions The Swiss mechanical engineering company Essemtec launches a new 3D-measuring instrument named Traqu on the market. The instrument uses an infrared interferometer to create a digital 3D model of objects, accurate to the nanometre. Essemtec state that it al- Visit us at the exhibition lows for any kind of measurement to be taken at a lat- EUPVsec in Valencia er time: of volume, depth, height, extension or rough- ness, both of reflecting and matt surfaces. Thus, com- Level 3, Hall 2, Stand B13 ponents can be checked for their compliance with specifications by performing measurements on the digitised model, regardless of where the original model is, also after processing or delivery to the customers. Users are free to define the measurement, what to measure and can for example calculate the volume, determine distances or calculate the rough- ness of a surface. According to the manufacturer, the instrument can also determine layer thickness because the function of the interferometer is similar to that of an ultrasound probe. According to Essemtec, The reliable connection for details down to the nanometre range can be resolved. your photovoltaic plant Traqu is capable of capturing up to 1 million im- - to protect your investment ages per second. The 3D scanner can digitise areas of up to 400 mm x 300 mm. The manufacturer can opti- and to maximize the return mise and modify the instrument for specific purposes. Booth L3/H4/A6 - Generator Connection Boxes

- AC-standard boxes The Hungarian producer Semilab introduces the IRB- - Junction boxes with blocking diodes 50, a new tool for imaging defects in silicon blocks and ingots for photovoltaic applications. The equip- for thin-layer panels - Integrated monitoring systems - Solutions for string and central inverter stations

EnWi-Etec GmbH

Scherrwies 2 │D-84329 Rogglﬁ ng Phone: +49 8725 9664-0 Fax: +49 8725 9664-96 Semilab’s IRB-50 is available from Q3 2010. Photo: Semilab [email protected] www.EnWi-Etec.com

Sun & Wind Energy 9/2010 ment uses infra-red transmission imaging to visualize cracks, inclusions, voids and other flaws in the material, that could cause problems in the manufacturing process. IRB-50 can be used on blocks with fine grinded or rough surfaces up to sizes of 400 mm x 210 mm x 210 mm. According to the company, a high resolution image is captured in less than 30 seconds Photovoltaic modules on each side. The pictures are evaluated automatically, with immediate spot detection and cut position determination. There are many measurement options which can be added for a more detailed characteriza- perfectly sealed tion, for example exact block size determination and detection of edge chipping. Even resistivity measurement can be implemented, using Semilab’s eddy current technique, the company stresses. and bonded Booth L2/H2/A47

Bonding of frames

Bonding and potting SMX-Linear ISI is a metrology tool for thin film solar of junction boxes PV metal film stacks on flexible roll to roll sub strates. Photo: Solar Metrology

From Holbrook in the US, Solar Metrology comes to Valencia. The provider of X-Ray Fluorescence analysis tools expands its SMX XRF tool portfolio for film composition and thickness measurement of CIGS photovoltaic depositions. The novelty is Solar Metrology’s Bonding of back rails System SMX-Linear ISI, a metrology tool for thin film solar PV metal film stacks on flexible roll-to-roll substrates such as stainless steel, aluminum and polyimide or rigid substrates such as float glass. Typ- ical measurement applications include all CIGS com- binations, including all CIG alloys and/or film combi- nations and final CIGS formulations. The tool is designed for an easy integration into vacuum deposition tools or vacuum process stations or as a point of Stabilisation of frames a vacuum process line. As the company emphasizes, the SMX LINEAR ISI tool Platform does not affect the Sealants, adhesives and encapsulants are only a minimal expense deposition process since all components reside out- factor in photovoltaic modules. But they have a considerable influ- side of vacuum for optimum performance and serv- ence on the life time and on the durability of the photovoltaic module iceability. Solar Metrology’s SMX measurement tool against climatic influences. Applying the premium products of OTTO platform provides a production-ready suite of film ensures you to benefit from more than 40 years of expert knowledge thickness and composition measurement tools for in research, development and production. Put us to the test! research and process development, in-process mon- OTTO – always a good connection! itoring and post-process quality control. Booth L2/H3/C14 Hermann Otto GmbH Krankenhausstr. 14 • 83413 Fridolfing • Germany Phone: 0049-8684-908-0 • Fax: 0049-8684-1260 [email protected] • www.otto-chemie.com Sun & Wind Energy 9/2010

OTTO_Anz_PV_en_102x297_RZ_100628.indd 1 09.07.10 12:17 Photovoltaics EU PVSEC/measurEment

Ocean Optics, a Dutch provider of optical sensor new image processing software detects the process solutions, design measurement methods for inter- relevant defects fully automatically. Using electrolu- preting optical effects. In Valencia they demonstrate minescence before lamination allows finding critical spectrometer and measurement systems for solar cell defects at a process stage where the product can still production, including systems for measuring the be repaired. This should lead to an overall improved thickness of thin films and for endpoint detection. quality and to a higher yield at the end of the day. Ocean Optics offer the new SolarSpec for quality con- Both the SolarModule EL-QuickCheck and the Solar- trol of the solar flashers. This spectroscopic system Module EL-Inline will be shown in Valencia for the for irradiance measurement is designed for ensuring first time. the output of a solar flashlight. The SolarSpec pro- Booth L2/H3/A43 vides the necessary accuracy and resolution to measure and analyse the performance and stability of a flasher. Ulvac presents the “MPEC-opt1300,” a local efficien- L3/H4/D29 cy and haze measurement system for use on tandem type thin-film solar cells. In contrast to common manual measurement, the MPEC-opt1300 system uses a mbj-Solutions from Hamburg, Germany, presents newly developed mini-cell forming function (patent- new electroluminescence inspection solutions on ed) with a laser, to form mini-cells without cutting the this year’s PVSEC: the SolarModule EL-QuickCheck substrate and evaluate the efficiency distribution. and the SolarModule EL-Inline. The new SolarModule With recipe settings, the system can automatically EL-QuickCheck has two fixed cameras to inspect the perform everything from mini-cell formation to distri- entire solar module which gives the user a feedback bution measurement and mapping display. The eval- on the quality of the produced solar modules. The uation of 7 points on the substrate by the convention- SolarModule EL-QuickCheck is an alternative for al manual method could take more than an hour, the making the first step into the electroluminescence system can shorten this to 8 minutes. Besides mini- technology and whenever a very quick inspection cell formation and local efficiency measurement func- feedback is required. tions, the system is equipped with a haze measure- mbj-Solutions will also introduce a fully auto ment function and shunt resistance measurement matic, high resolution electroluminescence inspec- function. It is also capable of measuring and evaluat- tion solution for pre-laminated solar modules. The ing entire substrate surfaces of 1,100 mm × 1,400 mm system has an automatic contacting unit to apply in size. power to the module. According to the company, the L2/H4/B13

MPEC-opt1300 from Ulvac Photo: Ulvac

164 Sun & Wind Energy 9/2010

Photovoltaics EU PVSEC/InverterS Inverters

The Swiss Sputnik Engineering AG will present their new three-phase string inverters in Valencia. The new MT (multi-tracking) series complements the Sputnik range with three performance classes between 10 and 15 kW. The maximum input voltage of the devices is 900 V. During their development, the Sputnik engi- The Fronius CL is characterised by its modular struc- neers focussed especially on the cooling concept. ture. Photo: Fronius Now the devices can perform at their maximum level up to ambient temperatures of 50 °C. The protection The Austrian company Fronius will mainly concen- class IP54 allows for indoor and outdoor installation trate on the new central inverters series Fronius CL at while the devices achieve 97.5 % in the European ef- the EU PVSEC. The launch took place in June 2010, ficiency rating. since then the product has been sold almost world- Of course there will also be the new TS series, wide. The new CL profits from a new modular system launched in March, to be seen in Valencia. The de structure: “Up to 15 identical power units are vices are available with rated outputs between 50 switched on and off depending on the intensity of so- and 300 kW. lar irradiation and based on operating hours. This op- Booth L3/H2/C13 timises the load and provides, especially in the par- tial load range, for maximum yields of the PV system,” says Christoph Panhuber, Divisional Manager of Fronius Solar Electronics. In the case of a faulty power unit, there is little yield loss because another In March, Sputnik launched the power unit will take its place. new central inverter for the TS In the performance classes 36, 48 and 60 kW, the Series. Photo: Sputnik Fronius CL is suitable for PV systems of up to several hundred kilowatts. Booth L3/H2/B10

Benefit from energy...

...with connecting Günther Spelsberg GmbH + Co. KG systems for Im Gewerbepark 1 D-58579 Schalksmühle photovoltaic Tel.: +49 (0) 23 55 / 8 92-0 modules made Fax: +49 (0) 23 55 / 8 92-299 e-mail: [email protected] by Spelsberg. Internet: www.spelsberg.de

Visit us at the 25th EU PVSEC, Solar-Hotline: Valencia, Level 2, Hall 4, Stand B11 Tel.: +49 (0) 23 55 / 8 92-552 06.-09.09.2010 Fax: +49 (0) 23 55 / 8 92-869 e-mail: [email protected]

Over 20 Years of Experience - Quality Made in Germany!

166 Sun & Wind Energy 9/2010 Voltwerk electronics GmbH from Hamburg are on show at the European Photovoltaic Solar Energy Ex- hibition and Conference for the third time now. A heavily dis- cussed topic this summer in Germany was the storage of PV electricity to increase the share of own consumption. Voltwerk have their system solution VS 5 hybrid packed and ready. Sun tracker The VS 5 hybrid is a combination of a 5 kW transformerless inverter, a lithium-ion battery GFC Slewing gear units with a capacity of 5 kWh and a management system with a keep the sun in focus. colour touch screen. The battery capacity can be upgraded as required – the system cabinet is designed for up to 8 kWh. The energy is either fed directly from the PV system into the electricity grid, taken from storage or made available simultaneously from both sources. In April, the VS If the amount of energy series was introduced made available from these sources is insufficient, AC Europe-wide. mains power will be used. According to Voltwerk, the Photo: Voltwerk VS 5 hybrid system could see the coincidence in time of photovoltaic electricity generation and its usage in a 4-person household increase from 30 % to about 70 % compared to a conventional PV system. During the summer months, a 100 % independence from the public electricity grid could be achieved. The VS 5 hybrid is to hit the market in the first half of 2011. Voltwerk will also be presenting their string inverter series VS in Valencia, which has already received the “red dot award” for design. In the area of large-scale systems, the Hamburg company will talk about the new central inverter station. The completely pre-installed station is available in the performance classes 400 to 1,200 kW. Booth L3/H1/A8

Soleos Solar GmbH from Bornheim-Sechtem in Ger- many will exhibit their new inverters from the Kaco collection in Valencia. In addition to the galvanically isolated three-phase inverters Powador 14.0 TR3 to 18.0 TR3, the transformerless three-phase inverters 10.0 TL 3 to 14.0 TL 3 will be successively added to the portfolio. “Soleos will be attending the 25th European Photovoltaic Solar Energy Conference and Exhibition once again this year. We are looking forward to exhibit the variety of our product range on an international stage. This allows us to react flexibly to the individual demands of our customers and is consistent with our policy of GFC AntriebsSysteme GmbH providing quality products,” says David Mabille, CEO Grenzstraße 5 / D-01640 Coswig of Soleos. phone +49 (0) 3523 94 60 Booth L2/H3/D29 fax +49 (0) 3523 74 142 [email protected] www.gfc-antriebe.de Sun & Wind Energy 9/2010

21342_Anz_sun+wind_71x297_en_OhneMesse.indd 1 03.08.2010 10:46:31 Uhr Photovoltaics EU PVSEC/InverterS

Testbourne Ltd SPUTTERING TARGETS for PHOTOVOLTAICS

Metals Alloys Compounds Precious Metals Custom Compositions The new range of Ingecon Sun Power Max 315 kW to 625 kW are specially designed for multi-megawatt installations. Photo: Ingeteam Circular Rectangular Rotatable Targets The latest innovations to be presented by Ingeteam Target Bonding include the new Ingecon Sun 315TL / 470TL / 625TL and 500HE inverters which complete the Power Max Backing Plates series. These inverters offer an input voltage range from 450 to 1,000 V. As further key feature, these models achieve an efficiency value of up to 98.5 % in the case of the 625TL. In addition, Ingeteam will present the Ingecon Industries Served Sun Power Maxter option, which is directed at maxi- Photovoltaics mizing PV plant efficiency in conditions of low irradi- Glass Coatings ance. This option is available with power outputs LED/OLED from 375 kW to 1,250 kW and functions by grouping Photonics together a number of power blocks in the same DC Flat Panel Displays bus. In this way, based on the power available in the Data Storage Automotive PV array, a system master determines which blocks Infra-Red should operate and the specific power output at each Semiconductor particular time, for optimum inverter operation and Microelectronics improved overall plant efficiency at low power -out RF Micro Devices Decorative Coatings puts. Aerospace & Defence Booth L3/H2/C22 Wear Resistance Coatings Research & Development

The Soleil 10 Other Products Available: TL is promised to be the star Electron Beam Crucibles at Siac’s booth. Photo: Siac High Purity Coating Materials

Evaporation Sources: Filaments, Baskets & Boats

Quartz Sensor Crystals

www.testbourne.com Level 3 Hall 2 Stand A41 is the location of Siac, part Tel: +44 (0)1256 467 055, Fax: +44 (0)1256 842 929 of the Italian Siel Group. Besides Soleil TL Three- Email: [email protected] Phase, Wind Wave and monophase inverter, as star of its stand is promised the Soleil 10 TL: a light,

168 Sun & Wind Energy 9/2010 Outwork. Outperform. Outlast.

Grid-Tie PV Inverters

Advanced Energy has been consistently recognized for solar excellence and innovation. And nobody in the industry offers inverter solutions that enable a better levelized cost of energy (LCOE) than AE Solaron®.

Recognized as today’s most exacting PV system metric, LCOE requires a balance of higher energy harvests, lower BoS, and lower O&M expenses. Because it’s not just about cost-per-Watt today, but how our inverters can save you ¢/kWh today, tomorrow, and well into the future.

Want to lower your LCOE? Learn more at www.aesolaron.com/lcoe. Photovoltaics EU PVSEC/InverterS

compact inverter for photovoltaic grid connection. Solas The transformerless technology maximizes conver- JENOPTIK sion efficiency up to 96.5 %. The Soleil 10 TL is suit able for every type of photovoltaic system, with, according to Siac, no need of periodical maintenance. Its integrated protections prevent overtensions, control devices optimize efficiency and running continu- ity. Its LCD display shows main data and recalled parameters. Its interface with Siac dataloggers and TGS2 supervision system enables database client access via LAN, ADSL or GPRS to check functions and sends error e-mail or sms. Booth L3/H2/A41

A set of new products completes the extended range of SolarEdge products recently announced at Intersolar 2010 exhibition, including PowerBoxes with power rating of up to 350 W, a module em bedded PowerBox, a wide range of single and three phase inverters and a complete safety mechanism. Another new product the Israelis will present in Va- lencia is a communication interface for non-SolarEdge

Higher cell efficiency due to Jenoptik laser machines

MWT / EWT Metal / Emitter Wrap Through SED Selective Emitter Doping LADL Laser Ablation of Dielectric Layer LEI Laser Edge Isolation LFC The communication box enables installation of per-module PowerBoxes in conjunction with non-SolarEdge inverters. Laser Fired Contact Photo: SolarEdge TLS Thermal Laser Separation inverters. The communication box enables installation of per-module PowerBoxes in conjunction with non-SolarEdge inverters, while still benefiting from module-level monitoring and safety shut down. The ability to use third-party inverters increases the flexibility and availability of the SolarEdge smart elec- www.jenoptik.com / lm tronics for a wider range of users. The communication interface will be available starting Q4 2010.

170 Sun & Wind Energy 9/2010 Perfect 25 Eurener PV Modules Two software tools complete the range. The Site Positive Tolerance 0 / +3% Mapping Tool is free software for mobile phones with Windows Mobile operating software. The mapping tool uses the phone’s camera to quickly and easily scan the barcodes of PowerBoxes and inverters to create a virtual map of the PV site. The map can be up- loaded to the SolarEdge monitoring portal, for automatic analysis and alerts on underperforming modules and strings, faults and safety events, based on continuous monitoring of the performance of each module by the PowerBoxes. The alerted components are pinpointed onto the site map. An optional bar code reader in a rugged case for heavy duty usage is also available. Besides, the SolarEdge monitoring portal is now Power up to 245 Wp available also as an iPhone application to enable in- 10 years product’s warranty stallers and system owners to perform remote moni- 80% nominal power: up to 25 years toring on the go and in the field. Manufactured in EU Booth L3/H2/A13

The Swiss manufacturer of sine wave inverters Studer Innotec has introduced a new range of inverter-chargers for solar and hy- drid systems. Consisting of three products (1 kW/12 V, 1.2 kW/24 V, 1.4 kW/48 V) the new XTS inverter-chargers provide system integrators and project operators with a power range that comple- Perfect 25: ments the existing Xtender Eurener PV insured modules range and therefore enlarg- by Munich RE. ing the product family to 13 in- Maximun guarantees, maximun reliability, verter-chargers, available in in sickness and in health. 230 VAC and 120 VAC. With IP 54, the new inverter-chargers are equipped for tough en- Forever yours vironment. By the implementa- You will not have anything as safe. tion of several units, it is possible to create a 3-phase power system and/or to set them in parallel to increase the power available. By means of an auxiliary relay module, two potential free contacts can be programmed to provide many supplementary functions like the automatic start of a genset, the load shedding, the alarm The new XTS inverter- signal, conditional charge of the battery charger from Studer etc. The optional remote control memorizes and dis- Innotec plays the events that occurred on an installation. It Photo: Studer gives access to the adjustable parameters of the XTS like the setting of the charge curve of the battery, the programming of the auxiliary relays or even, among others, to a lot of operation options. A slot is available for a SD card which will allow the parameters memorizing, the data transfer or the software update. Like with all Xtender models, it is possible to set a Valencia PVSEC 2010 battery voltage above which the solar energy will be STAND B53 HALL 3 used in priority over the AC source (grid, genset). Booth L3/H2/A12 +34 902 11 28 27 [email protected] Sun & Wind Energy 9/2010 www.eurener.com Photovoltaics EU PVSEC/Tracking systems Tracking systems

Degerenergie expands its product range with the new Mp-tec GmbH will present a second generation of the Degertraker 6000NT, wich is suitable for building or single-axis Skytrap tracking system. The module sur- open space installation. The new model is designed face has been raised compared to the previous mod- for a module area of up to 53 m2 and can be used as ule, and a more precise sensor has been installed. standard even under strong wind conditions, thanks With the new sensor, the tracker points to the bright- to its sturdy construction. Tracking takes place on the est point in the sky, with a maximum deviation of 2°. basis of MLD (Maximum Light Detection) technology The tracking systems offers space for a module sur- using the patented Degerconecter control module. face of between 10 and 18 m2, which can be tracked The new twin-axle model is available with mast over 90° azimuthally. The elevation is set as a stand- lengths between 4 and 5,5 m. Depending on module ard to 30°, but can be altered according to customer type, the yield for systems using the 6000NT lies be- requirements. The supporting structure is made of tween 4 and 7 kW. The system itself has an annual hot-dip galvanised steel, while the modules are consumption of 9 kWh. The system can be configured mounted on aluminium profiles. The tracker itself can for a maximum wind load of up to 190 mph. The sys- be mounted on bolt and concrete bases. The system tem is available from September 2010. power supply is preferably guaranteed by self- Booth L3/H2/A48 generated power, but can also be provided via the mains connection. Booth L2/H3/C10

French company Exosun has a new single-axis tracking system. The Exotrack system is set up in rows with up to 40 individual systems with a module surface of 13 m2 that are moved in unison. Per drive, a module surface of 520 m2 can be moved – far more than anything built with a single continuous module surface. It is capable of resisting cyclonic winds of up to 100 km/h in activity and up to 200 km/h in its security position. Booth L3/H2/A31

The 6000NT is the second new tracker by Deger in 2010. Likewise the 9000 NT it is based on the Heavy Duty Tracker 5000 HD. Photo: Degerenergie

PV Utility Control and Grid Stability Management System

172 Sun & Wind Energy 9/2010 anything else you need...

In Valencia, the German module manufacturer and developer Solon SE will present their “Solon Velocity” Sought about system, which allows for faster planning and construction of large photovoltaic power plants. Yield your roof lately? calculation is not only supposed to be easier but also more precise. The Galaxy-Energy integrated In- To date, every photo- Roof system featuring the watertight voltaic power plant is in Galaxy Solar Modules and a flow dividually planned on through rafter system will replace the drawing board. The the conventional roof design. Velocity concept entails that one PV plant consists The esthetic look of the roof can be of 1 MW clusters. These enhanced by using our edition Blue are built from components or Black Solar Modules. that have been standardised and tested as to their Light Domes and Windows can interaction. Each cluster be replaced with our transparent consists of the mounting Modules. frame, either fixed or single-axis tracked, the modules (of course from Solon), inverters, cables and the remote control and monitoring tool Solon With the Solon Velocity Scada. The latter transmits system data via the Inter- system you can plan and net, allowing the operator to monitor the system and construct large solar intervene online if required. Solon also offer plant parks in a shorter time. maintenance services. The Velocity system is now Graphic: Solon available worldwide. Booth L3/H1/B6

The connection system manufacturer Phoenix Contact will present their Sunclix system at the EU PVSEC. It consists of a module junction box and the corre- sponding DC connector. For module manufacturers, the junction box is particularly interesting. It can be connected to the module fully automatically. It is aligned to the elevated ribbons and then pressed

25th PVSEC Valencia Level 2 Hall 1 booth B3

The installer doesn’t need any special tools for Phoenix Contact Energy Systems for the future connectors. Graphic: Phoenix Contact www.galaxy-energy.com

Sun & Wind Energy 9/2010 Photovoltaics EU PVSEC/Anything Else you need …

against the module. Customisation is possible to meet individual requirements, for example regarding contact distances or cable cross-sections. The junction box is designed for thin-film modules and for crystalline modules with an adequate output. The DC connector helps the installers during installation. It is supplied pre-assembled, additional parts or special tools are not required. It is suitable for conductors with a diameter of up to 6 mm2. The conductors are inserted into the spring cage connection, which is then locked and the screws are tight- ened. The connector meets the requirements of DIN EN 50521 and protection class IP68. Booth L2/H2/C14

There are new mounting systems from Mounting Systems GmbH from Germany to be seen. Mounting Systems have given their ground-mounting system Sigma a new mounting rail. Its shape is reminiscent of the Greek letter Pi (π) – so it’s called the Pi-rail. These profiles are known from the classical structural engineering of large house and hall roofs. The benefits: less material usage and lower costs while main- taining higher stability and a larger span. The solar modules – whether framed or laminated – can be easily snapped into the Pi-rail without having to drill or use screws. To achieve this, Mounting Systems designed a specifically shaped adapter. Mounting Systems have filed a patent application for their Pi- rail. The other features of the Sigma system remain unchanged. It is mounted on pile-driven foundations and can compensate up to 10° differences in height in the terrain due to its flexible base rails and the height-adjustable adapter. Booth L3/H1/A9

EnWi-Etec will present two new charging stations for electric cars at the EU PVSEC. The E-Tower is designed for use on public roads and for company cars. It rec- ognises its registered users via an RFID card which is looked up in its database. It is available with different connector systems. Currently up to 32 A charging current is possible, in future it should range up to 63 A. For the private garage, EnWi-Etec offer the E-box – a wall-mounted charger with up to two charging connections. Booth L3/H2/B13

The Spanish manufacturer Atersa will present the CSP 12 1kV, a wiring box, that enables the grouping of series of PV modules with protections and current supervision for each series. It has inputs for 12 series of panels of up to 10 A and 1,000 VDC each. The input series may have a cable cross sectional area of 4 to 10 mm2. The cross section of the output cable to the inverter can range from 35 to 120 mm2. The device has an RS485 output for data and alarms that can send information over a distance of up to 1,000 m. The alarm output goes over a potential free relay.

174 Sun & Wind Energy 9/2010 Additionally, Atersa will exhibit the solar charge storage system. It uses a new type of stationary valve regulator family Leo 20. Leo 20 is available in a range regulated lead acid batteries (VRLA) from Hitachi. of voltages and currents, but designed for small and These batteries are maintenance free – unlike con- medium systems with no additional instrumentation. ventional lead acid batteries. They can reach a life- It is factory configured and calibrated. “All you have time of up to 20 years. The container includes an air to do is connect them”, the datasheet says. Leo 20 conditioning system for cooling and heating to guar- enables interconnection to expand the load capacity antee a long battery life time. by 50 A per device, up to a total of 400 A, comprising The peak charging and discharging power is a master and up to seven slave devices. A backlit LCD 400 kW. The system can provide a power of 100 kW display with two lines and 16 characters informs the for 7 hours. The batteries are placed in a 40 ft con- user about the relevant data: voltage, intensity, ener- tainer, together with the inverter for discharging and gy, alarms and temperature. charging. Additionally, the container includes the me- Booth L3/H1/D51 dium voltage transformer and the medium voltage switchgear. That makes the storage system a turnkey solution. The inverter is supplied with all necessary The company Whisper Power from the Netherlands control systems for charging and discharging the bat- offer a diesel generator with an integrated bi-direc- teries. As standard, a PC-based monitoring system tional inverter and a battery charger. As required, the with different interface provides the user with all im- device can generate electricity with the diesel gener- portant information. ator, tap the battery or recharge the battery using AIC recommands the container for island power solar power. The diesel engine adjusts its speed to systems in combination with solar and wind energy, the required power output. for peak load levelling of wind parks, for power grid Booth L3/H2/A37 stabilisation or as an UPS (uninterrupted power supply) for industrial use. Booth L3/H2/C14

System solutions for the roof have been available for a long time. Conergy have transferred this successful approach to major projects and now offer a system solution for major projects. Specifically to this end, Conergy have developed a new 360 watt module with 96 cells. With its intelligent wiring, it will also provide an output as high as possible when there is shading. Also included in the system is the inverter Conergy IPG T and the central inverter station Conergy CIS with a maximum efficiency of 98 %. The installation of the system is done using a new connection technology with which the modules can be mounted completely Diesel generator from Whisper Power without tools. The mounts are anchored to the ground Photo: Whisper Power via support posts. Booth L3/H1/A7

At the booth of Helios Systems, the German compa- Ralf Ossenbrink, Eva Augsten, Jan Gesthuizen, Désirée Mäueler, ny AIC Europe will present their electrical energy Volker Buddensiek, Katharina Garus

Come and visit our Production Facility: booth at L3/H1/C8! Industrial Area of Patras Solar Cells Hellas Group the first vertically integrated manufacturer in SE Europe with annual Ag. Stefanos, Block 31A production capacity of 80MW, will be exhibiting its latest products at 25th EU PVSEC 2010 in Valencia, 25200 Achaia, GREECE including multicrystalline solar wafers, cells and modules. Tel: +30 2610 241970 SCH Group will be presenting SCH660P multicrystalline module with a capacity of up to 235Wp Fax: +30 2610 241958 and efficiency which reaches 14.4%, designed for roof and ground-mounted systems. The high- performance 60-cell series PV module will be available with cell capacity of up to 4Wp, with the cells Head Offices: embedded between a reinforced 4mm tempered glass cover and an EVA film providing extra protection Sygrou Ave. 170 from climatic influences. PV modules SCH660P meet TÜV’s critical standards, with three cycles of 17671, Athens 2.400 Pa uniform load, applied for 1 h to the front and back surfaces simulating this way strong winds GREECE and a maximum load of 5.400 Pa applied for 1h simulating the accumulation of weight on their surface. Tel: +30 210 959 5159 Resistivity – Durability – Longevity: Three keys to success powered by Solar Cells! Fax: +30 210 953 7618 SCH660P are launched on the international market in April 2010, having received official certifications web: www.schellas.gr in accordance with all the requirements of IEC 61215 and 61730, they meet the highest industrial standards, satisfying customers’ expectations. e-mail: [email protected]

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