We bring homeowners together into a group, or co-op. We provide unbiased, installer neutral support to co-op participants through each state of the process of going solar. Our experienced team ensures you understand how solar works, how it can be financed, and how it can be installed on your home.

Co-ops take advantage of the group’s bulk-purchasing power to get discounted pricing and a quality installation. Volunteer co-op members choose an installer on behalf of the entire group through an open and competitive bidding process. The selected installer provides co-op participants a personalized proposal for their consideration.

Watch the video below to learn about how solar co-ops work and what the benefits of going solar with our co-op, or view our FAQs.

The 51st State co-op will be open to all District residents, regardless of income levels. As a DOEE-funded Solar for All project, the co-op will focus on expanding access to solar for low-income households. Low to moderate income households may qualify for Solar for All grant funding from DOEE that Solar United Neighbors is administering to cover the cost of solar arrays. For qualifying households, the solar array paid for by Solar United Neighbor’s Solar for All grant could reduce your electric bills by 50% over the course of a year.


The 51st State Co-op is open to all District residents.

You could qualify for a free solar installation under Solar United Neighbor of D.C.’s DOEE grant.

ow does a co-op works
Join us for an info session:

Monday, December 11th
6:30 p.m. – 8 p.m.
Petworth Library
4200 Kansas Avenue NW,
Washington, DC 20011
RSVP here!

What We’ve Done So Far
First info session
Issue RFP
Select installer
Begin installations
Second info session
Sign up deadline
Can’t make our info session?
Watch a recorded session for general information on solar, how co-ops work, and what to expect if you join.

How much does solar cost?
With support from The Department of Energy and Environment (DOEE) Solar for All program, certain income qualified homeowners may be eligible for the installation of a solar system at no cost.