Skip Navigation to main content U.S. Department of Energy Energy Efficiency and Renewable Energy
Green Power Network
About the GPNGreen Power MarketsBuying Green PowerOnsite Renewable EnergyCommunity Renewable EnergyInformation ResourcesFinancial OpportunitiesHome
Green Markets


Green Pricing

Green Power Marketing

Green Certificates

Carbon Offsets

State Policies
Community Choice Aggregation
Disclosure Policies
Green Power Policies
Net Metering Policies

Community Choice Aggregation (CCA)

Community choice aggregation (CCA) is a state policy that enables local governments to aggregate electricity demand within their jurisdictions in order to procure alternative energy supplies while maintaining the existing electricity provider for transmission and distribution services. Many states passed CCA laws as part of electric restructuring legislation in the late 1990s and early 2000s. States that have passed CCA laws include California (2002), Illinois (2009), Massachusetts (1997), New Jersey (2003), Ohio (1999), and Rhode Island (1997). There are many reasons that a community may choose to develop a CCA, including the option to purchase more green power, reduce electricity cost, and provide power from more local sources.

CCAs that are currently providing a green power product include:

Location Program Name Renewable Offer Start Date Premium
Campton Hills, IL Campton Hills Municipal Aggregation Program 50% or 100% green power 2012 50% green power at savings 41%-50% below standard rates; 100% green power at 36%-46%
Cape Cod, MA Cape Light Compact Green 50% or 100% green power 2002 0.9¢/kWh – 1.6¢/kWh
Cincinnati, OH Governmental Aggregation Program 100% green power Mid-2012 Average residential annual savings of $133
Evanston, IL Community Choice Electricity Aggregation 100% green power 2012 38% discount to standard supply
Marin County, CA Marin Energy 50% or 100% green power 2010 100% is 1¢/kWh extra
Oak Park, IL Oak Park Electric Aggregation Program 100% green power 2012 25% discount to standard supply
Peoria, IL Your Electric Aggregation Program 100% green power 2012 25% discount to standard supply

Other communities have initiated CCAs that do not include green power options:


California Local Government Commission. (2006). Community Choice Aggregation.

Marshall, S.E. (2010). Forming a National Community Choice Aggregation Network: Feasibility, Findings and Recommendations.

Local Power Inc. prepared for the San Francisco Public Utilities Commission. (2009). Community Choice: Lessons Learned & Best Practices.

Printable Version

Skip footer navigation to end of page.