EANS-News: Sunways AG / Monocrystalline silicon solar cells metallised by screen printing reach efficiency in excess of 19 percent

- Collaboration between Sunways AG and Institut für
Solarenergieforschung Hameln (ISFH)
- Increased efficiency through
improved back

--------------------------------------------------------------------------------
Corporate news transmitted by euro adhoc. The issuer/originator is solely
responsible for the content of this announcement.
--------------------------------------------------------------------------------

Research & Development

Subtitle: - Collaboration between Sunways AG and Institut für
Solarenergieforschung Hameln (ISFH)
- Increased efficiency through improved back

Konstanz (euro adhoc) - Konstanz/Germany, 11 March 2010 - Sunways AG
(FSE: SWW; ISIN DE0007332207) ) and the Institut für
Solarenergieforschung Hameln (ISFH) have reached an important
milestone as part of a joint development project with the aim of
further increasing the efficiency of silicon solar cells. Using
established screen printing technology for metallising silicon solar
cells the team succeeded in producing monocrystalline cells with an
efficiency of 19.1 percent. The work focused on the development of a
highly efficient back for silicon solar cells, resulting in yield
improvements in the long-wave range of the solar spectrum. This
approach combines the high efficiency potential of the new back with
the tried and tested processability of solar cells that have been
metallised by screen printing. The individual process steps for the
production of the prototypes with an area of 155 square centimetres
(5-inch cells) were carried out at ISFH and under near-production
conditions at Sunways. Roland Burkhardt, Chief Technology Officer of
Sunways AG, said: "I am delighted with the success of our development
work. An efficiency of more than 19 percent for silicon solar cells
with screen-printed contacts is an internationally leading
achievement. This impressive progress is the result of our
long-standing successful cooperation with the Institut für
Solarenergieforschung Hameln (ISFH)." He added: "Sunways aims to
continuously improve the technical potential and conditions for
generating electricity from the sun. In this way we keep improving
the electricity yield and the benefit of photovoltaic systems."

About Sunways Sunways AG, Konstanz/Germany, stands for consistent use
of solar energy to secure long-term energy supply of man in an
efficient and sustainable manner. Sunways offers technological
competence, performance and highest quality - from single components
to complete solar systems.Since its foundation in 1993, Sunways AG
evolved into a technology leader in the photovoltaics industry
serving international markets. With silicon-based solar cells,
inverters, solar modules and solar systems, the company offers all
components required for high-yield photovoltaic power generation.
With photovoltaic solutions tailored to customers´ needs (transparent
and coloured solar cells, building-integrated photovoltaic
installations), Sunways turns exceptional ideas into reality. Sunways
Production GmbH in Arnstadt/Germany is a subsidiary of Sunways AG; in
addition, the group has own branch offices in Barcelone/Spain and
Bologna/Italy. In 2008, Sunways AG with about 370 employees realised
sales of about EUR 260 million. The shares of Sunways AG are listed
at the Frankfurt Stock Exchange (SWW, ISIN DE0007332207). For further
information, please visit www.sunways.de.

end of announcement euro adhoc
--------------------------------------------------------------------------------

ots Originaltext: Sunways AG
Im Internet recherchierbar: http://www.presseportal.de

Further inquiry note:

Dr. Harald F. Schäfer

Leiter Unternehmenskommunikation & Investor Relations

Tel.: +49 (0)7531 996 77-415

E-Mail: communications@sunways.de

Branche: Alternative energy
ISIN: DE0007332207
WKN: 733220
Index: CDAX, Prime All Share, Technology All Share
Börsen: Frankfurt / regulated dealing/prime standard
Berlin / free trade
Hamburg / free trade
Stuttgart / free trade
Düsseldorf / free trade
München / free trade