Community Choice Aggregation

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By John Farrell and Emily Skeehan:

"While cities increasingly have the desire to move away from the use of fossil fuels, many are facing obstacles in converting their electricity supplies to clean energy. According to CDP, which surveys the world’s cities regarding climate change, just 35 percent of all cities report that they have set a renewable energy target.

A policy called “community choice aggregation” allows local governments (or groups of local governments) to join together to make energy-purchasing decisions on behalf of residential and small business customers in their community. In practice, it means that cities can choose their energy suppliers on the basis of cost, pollution, and local economic benefits, without having to own and maintain the electric grid.

The Community Choice Aggregation (CCA) process helps cities to aggregate demand for nonfossil electricity and use it to negotiate contracts with electricity suppliers. Cities are participating in CCA with the goal to increase the green power options for local residents.

Seven states – California, Illinois, Massachusetts, New Jersey, Ohio, New York and Rhode Island – have CCA legislation enabling local governments to aggregate the electricity loads of residents, businesses, and municipal facilities, and control both the cost and amount of renewable energy in their energy mix." (

More information

  • View the full policy here:

California’s CCA legislation, AB 117, passed in 2002 (amended by SB 790 in 2011).

  • City Power Play: 8 Practical Local Energy Policies to Boost the Economy: