Welcome to the Mid Atlantic Solar Energy Society, formerly the Potomac Region Solar Energy Association
Who is MASES (formerly PRSEA)?
The Mid Atlantic Solar Energy Society (MASES) is a non-profit organization whose purposes are to further the development, use of, and support for solar energy and related arts, sciences, and technologies with concern for the economic, environmental, and social fabric of the region.
MASES is a membership-based organization open to all individuals, businesses and other organizations who share our overarching mission to create a truly sustainable world for all.
Welcome to MASES! And we hope to see you and your neighbors at one of our upcoming events.
Happening now in Denver...

For the very first time, the American Solar Energy Society’s National Solar Conference will be held under the same roof with the biennial World Renewable Energy Congress. The combined event is the World Renewable Energy Forum 2012. The conference will draw prominent speakers and technical presentations from universities, renewable energy laboratories, installations and industries around the world.
To join PRSEA or renew your membership, click on the "Membership" page in the list to the right and follow the instructions. Your password will be sent to the email address you give on the registration form.