German EPC IdeemaSun installs solar parks featuring 7.3 MWp of Hanwha Solar PV modules in Germany and the U.K.

Hanwha SolarOne (the “company”), a top-10 global photovoltaic manufacturer of high-quality, cost-competitive solar modules, today announced the delivery of 7.3 MWp of photovoltaic (PV) solar modules to German EPC contractor IdeemaSun energy GmbH. The PV modules will power a solar park in Suffolk, U.K., and a solarpark in Kelheim, Germany.

The 3.2 MWp system in Suffolk, south-east U.K., was completed as planned by the end of March. The park has been equipped with a total of 12,910 Hanwha SolarOne’s 60-cell polycrystalline modules (HSL 60 Poly), characterized by reliable performance and extended durability. Expected annual output of the solar park is 3.1 million kWh.

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“The success of our projects and the long-term satisfaction of our investors is largely determined by the quality of engineering, the components used and the professional as well as quick installation,” said Meik Rekowski, Managing Director at IdeemaSun energy GmbH. “Hanwha SolarOne supports us with their reliable logistics and flexible services. This makes the company an ideal partner for lasting cooperation.”

A further 4.1 MWp of PV modules from Hanwha SolarOne are being installed in Kehlheim near Regensburg, Germany. Developed by the engineers at IdeemaSun, the solar park utilizes the horizontal tracking system “safeTrack Horizon” which can increase the output by up to 13% compared with fixed systems on this location. Another advantage of the tracking system is the evenly distributed power output throughout the day, contributing positively to grid stabilization. Furthermore, less area is utilized compared to a conventional PV plant with southern orientation. Total installed capacity of the park is 8 MWp, and expected annual output is 8.75 million kWh.

“The impressive accomplishments of IdeemaSun are based on a unique business model, with expertise covering all aspects of solar installations,” said Stefan Ams, Sales Director Germany at Hanwha SolarOne GmbH. “We are proud to have contributed to their successful projects throughout Europe, and look forward to continuing our cooperation.”

Based in Bavaria, Germany, the project planner and developer IdeemaSun is offering a broad portfolio of services including maintenance, monitoring and commercial management of solar parks. The track record includes numerous high-performance solar parks and rooftop-mounted systems successfully installed in Europe.

About Hanwha SolarOne

Hanwha SolarOne Co., Ltd. (NASDAQ: HSOL) is one of the top 10 photovoltaic module manufacturers in the world, providing cost-competitive, high quality PV modules. It is a flagship company of Hanwha Group, one of the largest business enterprises in South Korea. Hanwha SolarOne serves the utility, commercial, government and residential markets through a growing network of third-party distributors, OEM manufacturers and system integrators. The company maintains a strong presence worldwide, with a global business network spanning Europe, North America, Asia, South America, Africa and the Middle East. Hanwha SolarOne is a responsible company committed to sustainability. For more information, please visit: www.hanwha-solarone.com

About IdeemaSun

IdeemaSun energy GmbH, based in Germany, specialises in the development, financing, turn-key construction and operations management of photovoltaic roof-mounted systems and large-scale solar farms. As an international and manufacturer-independent EPC contractor with experience gained in many international ground-mounted and roof-mounted projects, IdeemaSun guarantees the professional planning, coordination and implementation of a competent and reliable solar power specialist. Our services are tailored to fit customer needs: we cover all aspects of a photovoltaic project, from the technical consultation and engineering to general contractor services right up to the operations management of large-scale solar systems. For more information, please visit: www.ideemasun.com

Safe-Harbor Statement

This press release contains forward-looking statements. These statements constitute “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and as defined in the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as “will,” “expects,” “anticipates,” “future,” “intends,” “plans,” “believes,” “estimates” and similar statements. Among other things, the quotations from management in this press release and the Company’s operations and business outlook, contain forward-looking statements. Such statements involve certain risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Further information regarding these and other risks is included in Hanwha SolarOne’s filings with the U.S. Securities and Exchange Commission, including its annual report on Form 20-F. Except as required by law, the Company does not undertake any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

Hanwha SolarOne has not independently verified any information in “About IdeemaSun”, or any other information regarding the projects, business, or market position of IdeemaSun. Hanwha SolarOne makes no representations regarding the accuracy or completeness of any such information.