Brother Sun Baltimore Solar Co-op

The Brother Sun Solar Co-op is now closed to new participants. Thank you to all of you who raised your hands and said “yes” to solar!

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From Pope Francis’ encyclical letter, On Care for Our Common Home:

In some places, cooperatives are being developed to exploit renewable sources of energy which ensure local self-sufficiency and even the sale of surplus energy. This simple example shows that, while the existing world order proves powerless to assume its responsibilities, local individuals and groups can make a real difference.

logo -- Interfaith Power & Light (MD.DC.NoVA)     Cropped Brother Sun sgw    MDSUN-Logo-Color

Last fall, caring homeowners from across the Baltimore area came together to form a solar purchasing group. Co-op members used their group buying power and got a discounted price for solar panels. In early December, the group selected Advanced Solar Technologies as their installer. If you’ve ever wanted to go solar and live in Baltimore or a surrounding community, now is your chance!

Can’t make a meeting? You can also watch a video of a solar co-op meeting.

Brother Sun solar co-op timeline

Information Session #1: Wednesday, July 15th at 7:00 pm
Information Session #2: Monday, July 27th at 7:00 pm
Request for installer bids released: November, 2015
Installer bids due: December 4th, 2015
Group sign-ups close for homeowners: February 29th, 2016

How does the co-op work?

Based on the same principle as buying in bulk, the co-op will go through the process of purchasing solar systems together. The group will select a single contractor to install systems on all of the homes, but each participant owns his or her system and will sign their own contract with the chosen installer.
By going solar as a group, members will typically save up to 20% off the cost of a solar system. They’ll also have the support of the co-op throughout the process instead of having to go it alone. The co-op is being organized by Interfaith Power & Light, Community Power Network (CPN), and CPN’s project MD SUN. Anyone located in the Baltimore area (city or county) is welcome to join.

More Information

Still have questions? Email us at and mention “Brother Sun” in the subject line.

Co-op in the news

Why “Brother Sun”?

This co-op takes its name from Saint Francis’ “Canticle of the Creatures,” in which he praises “Brother Sun … Who is the day and through whom You give us light.”

Who is organizing this?

This solar co-op is being sponsored by Interfaith Power & LightMD SUN, & Community Power Network in partnership with several of Baltimore’s Catholic parishes and is open to any Baltimore-area homeowner.

logo -- Interfaith Power & Light (MD.DC.NoVA)             MDSUN-Logo-Color            CPN logo