Costco Awards Solar Power, Inc.Contract for New Jersey Solar Installation

The 500 kW System Will Incorporate New Solyndra Panels and Will Be the Largest
Solyndra Installation to Date
ROSEVILLE, Calif.--(Business Wire)--
Solar Power, Inc. ("SPI") (OTCBB: SOPW) an international manufacturer, designer,
distributor and installer of photovoltaic (PV) solar systems has been awarded a
contract by Costco to design and install a 500kW AC system at Costco`s Hazlet,
New Jersey retail store. The system will be designed by Solar Power, Inc. to
utilize the innovative new Solyndra panels that depart from traditional
silicon-based technology. Solyndra panels` unique cylindrical modules capture
sunlight across a 360-degree photovoltaic surface capable of converting direct,
indirect, and reflected sunlight from the roof`s surface into electricity. The
installation will be the single largest commercial PV solar system to date that
incorporates Solyndra panels.

"We are very pleased to have been selected for this project and look forward to
producing an outstanding system for one of America`s leading retailers. The
Costco organization is a fantastic team to work with," says Bradley Ferrell,
President of Solar Power, Inc.`s commercial sales division.

Costco`s retail facility is located in Hazlet, New Jersey and is one of twelve
Costco retail warehouses serving the state. The system Solar Power, Inc. is
designing will utilize 3,300 173-watt Solyndra panels and a 500kW Advanced
Energy inverter. Installation is scheduled for completion at the beginning of
the third quarter of 2009. "The Costco relationship represents yet another
example of our repeatable footprint development strategy," said Steve Kircher,
CEO of Solar Power, Inc. "By providing companies with a low-cost formula for
deploying solar wherever needed across their enterprise we can leverage
economies of scale for our client partners while we build a solid book of
business for our company," Kircher concluded.

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. The Company`s Yes!
Solar SolutionsTM subsidiary provides the U.S. small- to mid-sized business and
residential market segments with turnkey PV solar systems through a growing
retail franchise network. Throughout Europe and Asia, the Company sells its
products direct to distributors and turnkey solutions providers. 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.

Solar Power, Inc.
Mike Anderson, 916-745-0916
Manderson@solarpowerinc.net
Vice President Marketing
or
HC International, Inc.
Ted Haberfield, 760-755-2716
Executive VP
thaberfield@hcinternational.net

Copyright Business Wire 2009