Solar Power, Inc. (“SPI”) (OTCBB: SOPW) announced today that it has signed a sales order agreement to supply German solar project developer Solarmarkt Sued Park with up to 25 megawatts of SPI’s high-performance 200 and 205-watt modules for a project currently being executed by Solarmarkt Sued Park. The agreement also includes up to 50 megawatts of SPI’s proprietary SkyMount^TM commercial rooftop racking systems. Under the agreement several megawatts of SPI solar modules and SkyMount^TM racking are to be delivered during the remainder of 2009. The sales order agreement is set to extend through 2010 with product orders commencing immediately.

Solarmarkt Sued Park is a leading solar project developer focused on developing large-scale commercial photovoltaic solar systems throughout Germany. “The performance of SPI’s solar modules is world-class. We share a common commitment to quality and place high value on their solutions-based approach to commercial systems,” said Frank Weckerle, President of Solarmarkt Sued Park. “The quality and design features of Solar Power, Inc.’s SkyMount^TM rooftop racking system are superior. We have selected SPI’s SkyMount system because it is an adaptable solution for a variety of unique installation requirements and offers an innovative non-penetrating option. We look forward to working with SPI as we execute both our current book of business and our developing project portfolio,” Mr. Weckerle concluded.

“The German solar market is very important to us. Our agreement with Solarmarkt Sued Park represents significant progress as we continue to pursue our international product sales strategy,” said Bradley Ferrell, President of Solar Power, Inc’s Commercial Sales Division. “As a large-scale project developer with an excellent reputation and strong demand for their services, we are very pleased to have our products play a significant role in the solar systems they are installing across Germany.”

Solar Power, Inc. will immediately commence processing orders to meet Solarmarkt Sued Park’s active project requirements through the remainder of 2009. The balance of the agreement will be fulfilled throughout 2010. SPI continues to advance international sales of its high-performance modules, proprietary SkyMount^TM racking systems, and its Peaq^TM solar canopies.

About Solar Power, Inc.:

Founded in 2005, Solar Power, Inc. is a vertically integrated solar energy solution provider offering the North American commercial and public sector building markets a complete solution through a single brand. Throughout Europe, Asia and Australia the Company sells its products direct to distributors and turnkey solutions providers. The company’s Yes! Solar, Inc. subsidiary provides the U.S. small- to mid-sized business and residential market segments with turnkey PV solar systems through a growing dealer network. Solar Power, Inc. operates from its Roseville, California headquarters.

Safe Harbor Statement:

This release contains certain “forward-looking statements” relating to the business of Solar Power, Inc., its subsidiaries and the solar industry, which can be identified by the use of forward looking terminology such as “believes, expects” or similar expressions. The forward looking statements contained in this press release include statements regarding the Company’s ability to execute its growth plan and meet revenue and sales estimates, enter into formal long-term supply agreements, and market acceptance of products and services. These statements involve known and unknown risks and uncertainties, including, but are not limited to, general business conditions, managing growth, and political and other business risk. All forward-looking statements are expressly qualified in their entirety by this Cautionary Statement and the risks and other factors detailed in the Company's reports filed with the Securities and Exchange Commission. The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities law.