New Online Market Simplifies Going Solar with Free, Instant Appraisal of your Sunlight’s Value

  New Online Market Simplifies Going Solar with Free, Instant Appraisal of
  your Sunlight’s Value

  Geostellar Expands Service to Look Up Your Potential Savings, Energy, and
      Environmental Benefits then Connect with Leading Solar Installers

Business Wire

MARTINSBURG, W. Va. -- December 12, 2012

Geostellar, the award winning startup that simplifies going solar, rolled out
its groundbreaking online marketplace today in areas across the Mid-Atlantic,
New England and West Coast. The platform gives people an instant, free and
independent appraisal of the value of the sunlight that shines on each and
every roof.

For the first time, people can access all the information, goods, services and
support they need to make the best possible decision on a solar energy system.
Leading solar installers, financers and equipment companies are all
represented on the platform, making Geostellar the safest, easiest, and
smartest way to go solar.

“Geostellar makes the process of going solar as safe, available and affordable
as booking travel, watching videos or socializing with friends online,” said
Geostellar CEO David Levine. “Our installation and financing partners are best
of breed, and committed to delivering the most value to the homeowner through
their solar energy systems.”

“RealGoodsSolar is pleased to be working with Geostellar on the launch of
its innovative platform,” said Kam Mofid, CEO of Real Goods Solar. "As one of
the nation’s leading solar companies with years of commitment to 100% clean
renewable energy, we look forward to this partnership to help new customers
realize the wonderful economic and environmental benefits of going solar.”

“Reaching the right homeowners who can most benefit from switching to solar
energy is a big challenge for our industry,”said Astrum Solar President and
Chief Executive Officer Vadim Polikov.“Geostellar helps close this
opportunity gap by offering an elegant way to connect us with a well informed
public.”

Geostellar’s advanced 3D geo-mapping models sunlight down to the square meter
- taking into account the slope and orientation of the roof and shadows from
trees and nearby buildings - over the course of a full year to determine the
energy-production potential of every property. Geostellar applies that data to
determine the economic benefits of solar for each property based on system
costs, electricity rates, incentives and usage patterns.

“Geostellar gave us a solar analysis on our home showing us the best, most
productive placement for modules, estimated productivity, costs and tax
incentives as well as a referral to a local solar contractor,” said Debbie
Royalty of Charles Town, WV, who looked up her home on Geostellar and
contracted with Bill Anderson of Milestone Solar. “This was what we needed to
move forward.”

Geostellar’s innovative service has already earned several awards including
selection for the Global Cleantech 100 and the GCCA’s 2012 Later Stage Award
Best of Solar.

                               About Geostellar

Geostellar provides a vibrant online platform where the solar curious connect
   with energy and technology leaders to create greener and more luxurious
 communities.By reducing soft costs associated with going solar, Geostellar
   brings distributed solar generation closer to grid parity and opens new
  markets. Through its proprietary predictive algorithms, the company offers
 access to the knowledge and guidance required for residential and commercial
  property owners to make smarter energy decisions and save money. For more
                      information visit:Geostellar.com

                         About Real Goods Solar, Inc.

 Real Goods Solar, Inc. (Nasdaq RSOL) is a leading residential and commercial
 solar energy EPC provider, having installed over 13,000 solar systems. Real
     Goods Solar offers turnkey solar energy services and has 34 years of
experience in solar energy, beginning with the sale in 1978 of the first solar
     photovoltaic, or PV, panels in the United States. With 15 offices in
California, Colorado and the Northeast, Real Goods Solar is one of the largest
     residential and commercial solar providers in the country. For more
 information about Real Goods Solar, please visit RealGoodsSolar.com, or call
                               (888) 507-2561.

                              About Astrum Solar

    Recently ranked #2 on Inc. Magazine’s list of fastest growing private
 companies in the nation, Astrum Solar is the leading full-service home solar
provider in the Eastern U.S. With Astrum Solar, homeowners can switch to solar
  power for nothing or little money down and instantly take control of their
  utility costs and reduce their electricity bills. The company makes going
    solar the most rewarding and provides a premier customer experience by
     facilitating every aspect of a homeowner’s seamless transition from
    traditional energy consumer to clean energy producer. Headquartered in
  Annapolis Junction, Md., the company operates in a dozen states including
  Connecticut, Delaware, Maryland, Massachusetts, Michigan, New Jersey, New
 York, Ohio, Pennsylvania, Virginia, Washington, D.C. and West Virginia. For
                 more information visitwww.astrumsolar.com.

                            About Milestone Solar

   Milestone Solar is a boutique, specialized solar installer serving West
  Virginia, Maryland, Pennsylvania, Virginia and Ohio. Milestone’s CEO, Bill
  Anderson, is the only installer in West Virginia certified by NABCEP, the
North American Board of Certified Energy Practitioners, with the PV Technical
 Sales Credential. In addition to other state licenses, Bill is proud to hold
  Pennsylvania’s Certified PV Contractor credential– whose strict criteria
 include actual checks of installations and customer satisfaction. Milestone
      limits their installs to only a few dozen a year so they focus on
  craftsmanship. No cut corners, no rush, just solid engineering. Bill will
 personally make sure your solar array goes in on time and on budget, that it
  performs as promised, and that it gives you a generation of trouble-free,
                             dependable service.

Contact:

Geostellar
Molly Haigh, 907-750-1999
molly@fitzgibbonmedia.com