Mount Diablo Unified School District Installs SunPower Solar Systems at 51 Schools, Saving $220 Million Over 30 Years

  Mount Diablo Unified School District Installs SunPower Solar Systems at 51
                  Schools, Saving $220 Million Over 30 Years

Largest Commitment to Solar by a School District in the US

PR Newswire

CONCORD and SAN JOSE, Calif., May 1, 2012

CONCORD and SAN JOSE, Calif., May 1, 2012 /PRNewswire/ --Today, Mount Diablo
Unified School District and SunPower Corp. (NASDAQ: SPWR) are celebrating the
completion of 40 SunPower solar power systems planned for district schools and
facilities. When the total number of 51 systems is complete later this year,
the systems are expected to reduce the district's electricity costs by more
than $3 million per year, and save $220 million over the next 30 years. With a
cumulative capacity of 12.1 megawatts, the project is creating more than 140
jobs during construction and injecting almost $24 million into the regional
economy through the use of local subcontractors and suppliers.


"With this project, we will eliminate 92 percent of electrical cost from our
general fund in the first year alone and generate additional financial
resources from the California Solar Initiative. This will help preserve
desperately needed financial resources for our schools and classrooms," says
School Board Member Gary Eberhart. "Saving our schools' money while reducing
emissions is the right thing to do for our students and the environment. We
are very excited to team with SunPower to bring the largest K-12 solar project
in the country to fruition."

SunPower is installing the system on rooftops and shade structures in parking
lots and hard court areas. The systems use high efficiency SunPower solar
panels, the most efficient panels on the market today, which are manufactured
locally in Milpitas, California. All systems are expected to be complete and
operational before the end of the year.

"The completion of the largest solar school project in the U.S., delivering
electric bill savings of more than 90 percent at 51 schools, represents a
major milestone in our industry. The Mount Diablo Unified School District
selected SunPower to deliver the world's highest performing solar systems for
its schools, in partnership with great local firms," said Howard Wenger,
president, regions for SunPower. "The district has established a high standard
for clean energy investments on school facilities. As a California company,
with roots firmly in California education, it is extremely rewarding to
deliver needed savings to our public schools."

According to estimates provided by the U.S. Environmental Protection Agency,
Mount Diablo Unified's solar power systems will avoid production of almost
400,000 tons of carbon dioxide emissions over the next 30 years, the
equivalent of removing 70,450 cars from California's highways.

In addition to the financial and environmental benefits, the partnership
between Mount Diablo Unified School District and SunPower is directly
benefiting the district's high school students through resources SunPower is
providing to enhance science, technology, engineering, and mathematics
curriculum beginning in the 2012-2013 academic year.

The school district's systems were financed through Clean Renewable Energy
Bonds (CREBs) secured under the American Recovery and Reinvestment Act of
2009, paid through a local, voter approved general obligation bond.

About Mount Diablo Unified School District

Nestled at the base of Mount Diablo in the suburban East San Francisco Bay
Area, the Mount Diablo Unified School District can be characterized as a
representative California microcosm. Mount Diablo is one of the largest school
districts in the state of California, with over 56 school sites and programs.
The district's statistics for ethnic/racial diversity, average class size,
test scores, numbers of Limited English Proficient (LEP) students and the
primary languages they represent, mirror those for the State of California as
a whole.

About SunPower Corp.

SunPower Corp. (NASDAQ: SPWR) designs, manufactures and delivers the highest
efficiency, highest reliability solar panels and systems available today.
Residential, business, government and utility customers rely on the company's
quarter century of experience and guaranteed performance to provide maximum
return on investment throughout the life of the solar system. Headquartered in
San Jose, Calif., SunPower has offices in North America, Europe, Australia,
Africa and Asia. For more information, visit

SunPower is a registered trademark of SunPower Corp. All other trademarks are
the property of their respective owners.

SOURCE SunPower Corp.
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