Factsheet. Competence in photovoltaics Arnstadt at a glance. July 2011 SE/COM

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1 Factsheet Competence in photovoltaics Arnstadt at a glance July 2011 SE/COM The concentration of photovoltaic (PV) companies, highly qualified and motivated employees and support from politics at a national and regional level have made central Germany into an outstanding region for photovoltaics. The PV competence center of the Bosch group is located in Arnstadt, at the Erfurter Kreuz. Close to the Autobahn interchange A4 and A71 and less than 20 Kilometer away from the Erfurt airport, there are excellent transport connections to Bosch Solar Energy. There are well educated specialists in this region. And Thuringia offers a high quality of life. In 2005, the former ersol Solar Energy AG started the first Ingot and Wafer production line in Arnstadt ersol added a new cell production site. Since then, the site is growing. As an integrated manufacturer, Bosch covers all the relevant process steps, from the crystal to the ingot, the wafer, the cell, the module, and the assembly system. A new, state-of-the-art research and development center continues to develop crystalline photovoltaics, adjacent to the production site in Arnstadt.

2 Expansion of the Arnstadt site Arnstadt 2008 Cell Fab 2 Arnstadt 2011 Overall complex approx. 382,000 m² Facts: 509 days from the laying of the foundation stone to the start of production 1,100 new jobs 1,170 solar modules on the roof 3,500 truckloads of excavated earth 223,000 square meters of building area 530 million investment volume Page 2 of 5

3 Size and area Headquarte Wafer production Crystal Growing process Module production Cell production expansion: 52,800 m² Production facilities + offices m² New building for module production and storage: 23,500 m² Module production 10,000 m² Logistics 10,000 m² Offices 3,500 m² Newly constructed headquarter, R&D, Technical-industrial training: 25,500 m² Offices 10,000 m² R&D/technical center 10,000 m² Technical-industrial training/ Cafeteria/Tech. center 5,500 m² Page 3 of 5

4 Employees Ingot/wafer employees 580 Cell employees 450 Module factory employees 200 Administrative employees 180 R&D employees 97 (120 planned) Trainees 95 New trainees as of September 1, Bosch Solar Energy currently employees 2,200 people in total (as of July 2011). Nominal capacities in Arnstadt at the end of 2012 Ingots/wafers Solar cells Crystalline modules 430 MWp >630 MWp >150 MWp Photovoltaic plants Of course Bosch solar technology will also be used as an energy source in this new building complex. Overall, the installed PV systems on these buildings have a combined power rating of over one megawatt. These systems produce a million kilowatt hours of energy annually, enough to cover the entire headquarters requirement for electric energy. Façade system The façade elements at the north, south and west sides of the main building are a worldwide first from Bosch. The 620 elements, which simultaneously produce energy and provide shade, are over four meters high and roughly 60 centimeters wide. The rotate along with the position of the sun, but can also be controlled individually from inside. Semi-transparent roof The roof in the upper storey's corridor is also decorated by solar elements, which, thanks to the modules installed, not only produce energy, but also provide pleasant lighting and make stylish patterns on the wall or floor depending on the sun s position. Solar movers Page 4 of 5

5 A total of ten imposing movers with their own solar cells at the Arnstadt site feed over 75,000 kwh of energy per year into the city s public grid. The special technology allows the photovoltaic systems to track the position of the sun on two levels. This makes it possible to increase the solar power plants yield by up to 40 percent, which puts the individual movers total output at 7,505 to 7,531 kwh. Cafeteria Seats 400 Daily number of meals 400 Occupational physicians practice An occupational physicians' practice of approx. 130 m 2 with a health care center, emergency room, physician s room and laboratory is on hand to provide occupational healthcare for the employees at the site. Bosch Solar Energy currently employs one occupational physician and a company nurse. The team is supported by trained accident prevention personnel, medics, first aid personnel and an external emergency medical service. Company fire brigade Company fire brigades specialize in the incidents which can be anticipated at their companies. Bosch Solar Energy plans to establish a company fire brigade at the Arnstadt site which will be in charge of fire and accident prevention at the entire site and will be housed in a 230 m 2 space equipped with state-of-the-art technology. Parent-child rooms Combining family and occupation is given high priority at the Arnstadt site. The basement of the administrative building houses a 60 m 2 parent-child area with two work rooms, a washing area as well as a relaxation and game room. Page 5 of 5