Some background resources: Massachusetts
I live in eastern Massachusetts, so am mostly familiar with what's gone on in communities around Boston. In no particular order, here are some resources I've collected.
Sierra Club summary: "Community Clean Energy"
Boston Globe article touching on challenges of campaign communication and perception, various towns in the area (July 5, 2017)
Mass Climate Action Network / 350 Mass webinar on how to build a municipal campaign (September 2017)
City of Boston (city council unanimously voted to authorize on October 4, 2017; waiting for Mayor's signature)
- Boston Globe coverage
Campaign website: https://communitychoiceboston.org/
Short explainer video: https://www.youtube.com/watch?v=6HkNZiN-FX4
MA state government website on aggregation, including list of communities with plans approved by the Dept of Public Utilities
Good Energy, one of the consultants that works with communities and acts as broker negotiating energy supply contracts