1-Megawatt SunPower System Constructed at Masdar City

GENEVA, December 6, 2010 - SunPower Corp. (Nasdaq: SPWRA, SPWRB) has announced the construction of a
1-megawatt solar power system on the roof of the Masdar Institute building,
Masdar City, located on the outskirts of Abu Dhabi. The system is installed
on a canopy structure that provides shade for the roof terrace as well as
clean, renewable solar power for the facility.

"The Masdar Institute building is the first to be completed in Masdar
City. The sophisticated campus provides the ideal setting to drive real
innovation and a concrete path to the technologies critical to powering
tomorrow," said Alan Frost, Director of Masdar City. "With its reputation for
reliable, high quality technology, SunPower's high-efficiency solar panels
were selected to maximize the solar power generated by the system and achieve
our renewable energy goals."

"The Masdar Institute is the nucleus of research and development
activities in Masdar City and has a key role in the development of the city,"
said SunPower Managing Director Jorn Jurgens. "SunPower is pleased to be part
of this groundbreaking project, helping Masdar City to achieve their
renewable energy goals with SunPower E19 solar panels, which deliver
record-breaking efficiency of at least 19.3 percent in standard conditions."

SunPower has more than 1 gigawatt of solar technology installed on homes,
businesses and power plants worldwide.

About Masdar Institute of Science and Technology

Designed by Fosters + Partners, the Masdar Institute building is the
first completed building at Masdar City and a model of sustainability. The
Masdar Institute campus, which consists of a main building, a knowledge
centre and student quarters will use significantly less energy and water than
business as usual. In particular, the residential quarters of the complex are
designed to use around 51 percent less energy than average buildings in the
United Arab Emirates, and 54 percent less water than conventional buildings
of its size. The building is wired throughout with an energy metering system
that monitors energy consumption and produces data that is easily accessible
to students and faculty for use as a research tool. The building incorporates
a wide range of emerging green building technologies that will be evaluated,
with the building itself serving as a test bed for technologies that will
help Masdar City achieve its sustainability goals.

The Masdar Institute aims to provide a world-class research and education
environment that attracts and nurtures future leaders and critical thinkers
in science and technology with a particular focus on advanced energy and
sustainability.

About Masdar City

Masdar City is an emerging global clean-technology cluster located in
what aims to be one of the world's most sustainable urban developments
powered by renewable energy. This special economic zone billion free zone
located about 17km from downtown Abu Dhabi will eventually be home to
companies, researchers, and academics from across the globe, creating an
international hub for companies and organisations focused on renewable energy
and clean technologies.

It is a city where current and future technologies will be funded,
researched, developed, tested and commercialised. Leading multinational
companies in the cleantech sector, as well as small- and medium-sized
enterprises and entrepreneurial start-ups will locate sales and marketing
offices, demonstration centres, research and development labs and
headquarters in the city.

About SunPower

Founded in 1985, SunPower Corp. (Nasdaq: SPWRA, SPWRB) designs,
manufactures and delivers the planet's most powerful solar technology broadly
available today. Residential, business, government and utility customers rely
on the company's experience and proven results to maximize return on
investment. With headquarters in San Jose, Calif., SunPower has offices in
North America, Europe, Australia and Asia. For more information, visit
www.sunpowercorp.com.

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

Ben Steele, +971-2-653-7044, bsteele at masdar.ae, of Masdar, or Christelle Huwiler of SunPower Corp., +41-22-304-15-93, Christelle.Huwiler at sunpowercorp.com