Wattner Acquires Largest Rooftop Solar System in Germany

9.2 MW on the Roofs of Opel / Operations to Begin in June

COLOGNE, Germany, May 12, 2011 - Wattner has contracted the construction of a mega-project: The
Cologne-based group with a specialization in solar and infrastructure assets
commissioned Germany's largest rooftop solar system on the roofs of the
automobile manufacturer Opel, a subsidiary of General Motors, in
Ruesselsheim. Five of the company's rooftops will be used to realize a
project with a total installed capacity of 9.2 MW (megawatts). The feed-in of
that electricity from the rooftops directly into the production facilities
means that there will be no energy losses incurred through cable routing.
"The project highlights the environmentally conscious and sustainable
corporate philosophy of Opel," according to Ulrich Uhlenhut, managing
director of Wattner AG.

Wattner commissioned EWT SolServ GmbH, also a partner of Adam Opel AG,
with the construction of the installation. Approximately 40,000 solar modules
and 500 inverters feed renewable energy directly into Opel's corporate grid.

In Ruesselsheim, approximately 20 million euros will be invested for
Wattner funds. Wattner had just secured two more attractive solar parks, with
a similarly high combined capacity and investment volume: Fürstenwalde near
Berlin, with a current capacity of 3.15 MW and an investment volume of 6.5
million euros, and the solar power plant in Harbke, Saxony-Anhalt, currently
with a capacity of 4.9 MW and an investment of nearly 10 million euros.

ABOUT WATTNER

Wattner is a leading developer, financier and operator of solar power
plants. The company is privately owned; its managing director is Ulrich
Uhlenhut. Wattner has a global target pipeline of 500 MW of solar projects by
2012 in countries across Europe, North America and emerging markets. Wattner
is the most active fund investor on the German market in the field of solar
energy.

    CONTACT

    Klaus Sachsenthal
    Public Relations
    Tel.: +49-221-355-006-52
    Fax: +49-221-355-006-79
    E-Mail: presse@wattner.de
    Internet: www.wattner.de

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