DGAP-News: Solarvalue AG: Technological breakthrough: Solarvalue produces first solar grade silicon-Ingot

Solarvalue AG  / Key word(s): Product Launch

05.10.2010 10:04 
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Berlin, 5th October 2010: Dr. Christian Bornhauser, executive of Solarvalue
AG, presented a current status report about the achieved milestones
concerning the development of the new process to produce solar grade
silicon out of metallurgical grade silicon on the annual general meeting.

Demanded purity achieved.
The first solar grade silicon-ingot with a weight of approximately 15
kilograms was produced in repeated tests and on different plants. The
purity levels of the critical elements phosphorus and boron with less than
1 ppmw (parts per million weight; weight-related share per million Si
atoms) lie underneath the aimed values and therefore within the requested
specifications.

Very flexible process concerning the used feed stock.
The key feature of the underlying process is a multistage treatment for the
separate reduction of phosphor, boron and other metals to achieve the
requested purity levels. At the same time, the feed stock is allowed to
vary to a larger extend. The process is therefore very flexible concerning
the initial quality of the metallurgical grade silicon (MGS). This process
flexibility is particularly important when it comes to availability and
price volatility of the feed stock, the metallurgical grade silicon. The
process allows the usage of a broader range of standard, so called
commodity-materials and therefore generates cost advantages in purchasing.

Technological breakthrough - Financing of own pilot plant ensured.
Dr. Bornhauser, chief technology officer of Solarvalue AG: 'We have already
achieved far better results with the new process within the last couple of
months than with the previous process, which was developed and tested for
nearly two years in the USA. We definitely have achieved a breakthrough in
this area. We have produced the first ingot in a quality that seems to be
adequate for manufacturing solar cells. Of course this has to be verified
by means of further tests. The next step is going to be converting the
material into cells by our partners. Altogether, this positively attunes us
for the further development of the Solarvalue AG. It is still our goal to
produce solar grade silicon at compatible costs out of metallurgical grade
silicon with the new production process. From today's perspective, thanks
to our rigid savings program the current liquidity is sufficient to build a
larger pilot plant for ingots up to 60 kilograms each. But we will have to
overcome a number of technical and especially financial barriers before we
can produce in an industrial scale.'

Next presentation.
On November12, 2010 Dr. Bornhauser will present an updated report on the
company. The analyst conference will take place in connection to the 11th
Forum Solarpraxis in Berlin.

About Solarvalue:
The Solarvalue AG, based in Berlin, was founded in 2005. Nearest purpose of
the company is the production of ingots from upgraded silicon. The long
term goal is to grow along the solar value chain. Additional information is
available on the Internet. Please visit: www.solarvalue.com.


Contact:
max. Equity Marketing GmbH
Maximilian Fischer
Marienplatz 2
D-80331 München
Tel.: +49 89 139 2889 0
Fax.: +49 89 139 2889 29
e-Mail: ir@solarvalue.com




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