alfasolar GmbH Company and Product Presentation

1. alfasolar GmbH Company and Product Presentation

2. The company • Founded in 1993: 17 years experience in the market and 9 years experience in manufacturing solar modules • Turnover: 2007: 16,0 Mio €, 2008: 27,7 Mio € • Export quota: 2007: 7 %; 2008: 31 %; 2009: 56 % • 71 employees in Germany, 40 in Sweden.

3. Solar module production Arctic Solar AB (since 2001) • Production plant in the north of Sweden • The production uses energy from hydro power • 40 employees • 14 MWp production capacity • Production of normal and special modules

4. First State-of-the-art 20 MWp production line in Hanover • State-of-the-art 20 MWp production line for crystalline modules (expandable to 40 MWp) • First production line in Lower-Saxony • Amount of production in 2009: 12 MWp • Production of alfasolar Pyramid 54, Pyramid 60 und Pyramid 80 and alfasolar 120P-6 (for off-grid systems) • The production uses energy from hydro power

5. Products: • Solar modules • alfasolar modules 120 Wp – 326 Wp • Other manufacturers: Signet Solar • Cables and adapters • Radox and Titanex • H&S, MC3, MC4, Tyco • Mounting supports • A2 Mounting Support (own production) • Flat roof • Roof integration • Trackers • Inverters • Solarmax • SMA • Fronius

6. 1. alfasolar Pyramid

7. 1. alfasolar Pyramid 1.1 Solar module series alfasolar Pyramid 1.2 Your benefits on a glance

8. 1.1Solar module series alfasolar Pyramid

9. 1.2 Your benefits on a glance • Higher energy yield through Pyramid technology • Excellent partial-load performance • Self-cleaning ability by wind and rain • More longevity due to approved premium- components • Best installation benefits • Eco friendliness

10. Higher energy yield through Pyramid technology • Use of „extra-white“ glass • It has an especially low iron content in comparision with conventional silicate glasses • This glass allows it to transmit excellently the band of the spectrum that is so important to solar cells, i.e. the wave lengths starting with visible light, just below the ultraviolet band

11. Higher energy yield through Pyramid technology • The specially-formed structures affect the path of the light and lead to a higher light yield • Rays of light which have already been reflected are refracted again on the inside of the glass and reflected – with some being reflected back to the solar cell in the process • Thus , up to 7 % more yield can be achieved

12. Higher energy yield through Pyramid technology • Meanwhile the second generation of the structural glass • The latest structural improvements address the behavior of angels of incidence greater than 40° • At the expense of the rate of increase at extreme angles of around 80°, efficiency is noticeably increased in the interval between 40° and 70° • This range of angles is more often involved • The result is an even greater net efficiency as compared to the glass structures used until now

13. Excellent partial-load performance In comparison to other polycrystalline solar modules the solar module series alfasolar pyramid achieves the best energy conversion with middle irradiations, which seems especially often. Thus the maximum efficiency of the module is achieved in the area of 200-900 W / m². The modules are output-optimised.

14. Proven self-cleaning ability by wind and rain • The structural glass is extremely smooth • It is difficult for dirt particles to accumulate • Dirt is directed into the depresions and is easily removed by wind an rain

15. Thank you for your attention! alfasolar GmbH Olaf v. Perbandt Ahrensburger Straße 4-6 30659 Hannover Germany Fon: 0511-261 447-26 Fax: 0511-261 447-50 Olaf.Perbandt@alfasolar.de