Solar Farm to Offset More Than 123 Million Pounds of CO2 Emissions Over 20 Years

LOUISVILLE, Colo., June 26, 2013 -- RGS Energy, the

commercial and utility division of Real Goods Solar, Inc.
(Nasdaq:RSOL), has been selected by St. Albans Solar Partners, LLC, to
deploy a new 2.2 megawatt solar farm in Saint Albans, the largest PV system
in Vermont.

RGS Energy will design, install, monitor and maintain the solar power
system. Construction for the project is expected to begin next month and
scheduled to be completed by November.

The fixed array ground mount solar system is expected to generate enough
power to provide electricity for 400 homes. It also helps Vermont reach its
goal of 20% renewable energy by 2017. Over the next
25 years, the solar energy produced is estimated to offset more than
123 million pounds of carbon dioxide emissions or the equivalent to planting
more than 1.4 million trees (per EPA-based data).

"St. Albans is a great town to work with and we are proud to help bring an
important renewable source of energy to the area," said Project Owner Joe
Larkin. "We are very excited to work with Real Goods Solar.
Creative and dedicated partners are essential to successful development. RGS
is committed to this project and to the state's renewable energy goals."

100% of the solar energy produced will be purchased through a feed-in tariff
under the Standard Offer Program of Vermont's Sustainably Priced Energy
Development (SPEED) Program. The program was created by legislation in 2005
to promote renewable energy development in the state in order to reach the
state's goals of 20% renewable energy by 2017.

"In collaboration with St. Albans Solar Partners, we are proud to bring 100%
clean renewable energy to the City of Saint Albans," said Tim Seamans, RGS
Energy's general manager. "This is a great example of what is possible to
accelerate the deployment of renewable energy both in Vermont and other
states."

About Real Goods Solar and RGS EnergyReal Goods Solar, Inc. (RSOL) is one of
the nation's pioneering solar energy companies serving commercial,
residential, and utility customers. Beginning with one of the very first
photovoltaic panels sold to the public in the U.S. in 1978, the company has
installed more than 14,500 solar power systems representing over 100
megawatts of 100% clean renewable energy. Real Goods Solar makes it very
convenient for customers to save on their energy bill by providing a
comprehensive solar solution, from design, financing, permitting and
installation to ongoing monitoring, maintenance and support. As one of the
nation's largest and most experienced solar power players, the company has
15 offices across the West and the Northeast. It services the commercial and
utility markets through its RGS Energy division. For more information, visit
RealGoodsSolar.com or RGSEnergy.com, on Facebook at
http://facebook.com/realgoodssolar and on Twitter at
http://twitter.com/realgoodssolar.