Welcome to the Mid Atlantic Solar Energy Society


Join friends and neighbors in the Mid-Atlantic Region as we work together with people from across the nation and around the globe to create a truly sustainable world for all.  
We hope to see you at one of our upcoming events.    Welcome to MASES!

MASES is a regional chapter of the American Solar Energy Society.

Let's all go on the DC Solar Tour!


New:  Attend Virtually or In-Person 


Plus, make plans to "Go Solar"  before 

the Federal Tax Credit Expires!

Tour Solar & Green Homes!

Visit a Large Community Solar Array!

Learn how YOU can help SAVE Planet Earth!


Want to showcase your fine Solar Home? 

Apply to be listed as part of this year's DC Solar Tour at    

Please signup as soon as possible,

but no later than Sept. 15th

 For more info, visit

Volunteer to help organize at


Help support the Solar Tour program -- Donate Today!


Thanks to everyone who was able to attend!

Stay tuned for updates on next year's Solar 2022.  

  • Register by August 1 for the 50th annual National Solar Conference, SOLAR 2021: Empowering a Sustainable Future! Register today for ASES's first ever hybrid conference, taking place August 3-6 in Boulder, CO and online. 
  • Learn more about the conference and register at Questions? Contact

Still time to Sponsor:  We are interested in research and development, but not sales. If you have a quality product or service related to the conference agenda that you wish to promote, we invite you to sponsor the conference, including an option to present at the Industry Round Table.

Thanks for your interest, we look forward to seeing you in Boulder... or online.

Visit ASES for more information

FREE: View SOLAR 20/20 Conference Sessions Online! 


** 15 Sessions Are Now Available for Viewing Online


Thanks again to everyone who registered and joined us live at ASES's very first virtual conference!


Please help support our programs. 


Donate Today!



The Mid Atlantic Solar Energy Society is a regional chapter of the American Solar Energy Society, serving the Metropolitan Washington DC area and surrounding states. 


Charitable contributions to all MASES and ASES are Tax Deductible per IRC Section 501(c)(3).

Thanks so much for your generous support!

Solar Internships Now Available.  Apply today!


Want to help convert our world to run on 100% Clean, Renewable Energy?  


If you're passionate about mitigating adverse climate change and want to bring your current skills to this task while also learning new ones, we welcome you to join us for a season of learning and adventure.  


As always, Apply Early for best choice of assignments. 

                         Join MASES Today

                          FREE SOLAR ENERGY

To join MASES, renew your membership, or subscribe to our e-Newsletter, just click on the "Membership" page in the menu to the left and follow the instructions.  Your MASES password will be sent to the email address you provide on the registration form. 


Never doubt what a small group of

dedicated people can do.

MASES is a regional chapter of the American Solar Energy Society. 

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