Community Choice Aggregation, abbreviated CCA, is a system adopted into law in the United States states of Massachusetts, New York, Ohio, California, New Jersey, Rhode Island, and Illinois, which allows cities and counties to aggregate the buying power of individual customers within a defined jurisdiction in order to secure alternative energy supply contracts on a community-wide basis, but allowing consumers not wishing to participate to opt out. Also known as municipal aggregation, governmental aggregation, electricity aggregation, and community aggregation, CCAs now serve nearly 5% of Americans in over 1300 municipalities as of 2014.[1] CCA's are de facto public utilities of a new form that aggregate regional energy demand and negotiate with competitive suppliers and developers, rather than the traditional utility business model based on monopolizing energy supply.


CCAs have set a number of national green power and climate protection records while reducing power bills, a rare combination that has won national Renewable Energy Laboratory (NREL) and Environmental Protection Agency (EPA) recognition for achieving significantly higher renewable energy portfolios while maintaining rates that are competitive with conventional fossil and nuclear-based utility power. Several major U.S. population centers under CCA have switched to energy portfolios that are an order of magnitude greener than local utilities or other direct access providers, but charge no premium above utility or direct access rates. CCAs are therefore already conspicuous leaders in green power innovation, receiving U.S. Environmental Protection Agency’s “green power leadership awards” for achievements in renewable energy (Marin County, CA; Oak Park, IL, Cincinnati, OH). With the more recent emergence of "CCA 2.0" in California, CCAs like Sonoma County and San Francisco are increasingly focused on using the policy as a platform for financing and integrating a transition to local renewable energy sources rather than grid power.[2]

Early days

In Massachusetts, where the nation's first CCA bill (Senate 447, Montigny) was first drafted by Massachusetts senate energy committee director Paul Fenn in 1995[3] and enacted in 1997,[4] the towns of Cape Cod and Martha's Vineyard formed the Cape Light Compact and successfully lobbied for passage of the seminal CCA legislation. Two of the Cape Light Compact founders, Falmouth Selectman Matthew Patrick and Barnstable County Commissioner Rob O'Leary, were subsequently elected to the Massachusetts House of Representatives and Senate respectively. Between 1995 and 2000, Fenn formed the American Local Power Project and worked with Patrick to draft and pass similar laws in Ohio, New Jersey, and other states.[5]

Former FERC Commissioner Nora Brownell has called Community Choice Aggregations “the only great exceptions to the failure of electric deregulation in the U.S.” With every CCA yet formed still in operation and charging ratepayers less per kilowatt hour than their Investor-Owned-Utilities, CCAs have proven to be reliable and capable of delivering greener power at competitive prices. Ohio’s Office of the Consumer’s Council has said that CCA is “the greatest success story” in Ohio’s competitive market, and new legislation to re-regulate utility rates in Ohio will preserve CCA even if other forms of competition are eliminated. In Massachusetts, the success of the Cape Light Compact has led to the formation of new CCAs used in towns such as Marlborough, Massachusetts.


The nation's first CCA, the Cape Light Compact, currently serves 200,000 customers, running aggressive and transparent energy efficiency programs and installing solar installations on Cape Cod schools, fire stations and libraries. The Hampshire Council of Governments has filed petitions for Municipal Aggregation of Electricity on behalf of 44 communities in Berkshire, Franklin, Hampden, Hampshire, and Worcester Counties. After approval by state regulators, the Council will arrange supply for those customers who have not chosen an independent supplier. These include Great Barrington and Washington in Berkshire County; Blandford, Hampden, Holland, Monson, and Montgomery in Hampden County; Chesterfield, Cummington, Goshen, Granby, Hadley, Hatfield, Huntington, Middlefield, Northampton, Pelham, Plainfield, Westhampton, and Williamsburg in Hampshire County; Charlemont, Conway, Deerfield, Gill, Heath, Leverett, Montague, Northfield, Rowe, Warwick, Wendell, and Whately in Franklin County; and Barre, Brookfield, Charlton, East Brookfield, Hardwick, Leicester, Mendon, Millville, New Braintree, North Brookfield, Upton, and West Brookfield in Worcester County.

Other towns and cities are working to complete the initial process, in addition to these communities, which have a combined population of over 165,000 people.


In Ohio, the nation's largest CCA was formed shortly after 1999 when the state legislature adopted a CCA law - the Northeast Ohio Public Energy Council (NOPEC), made up of approximately 500,000 customers in 138 cities and towns across eight counties, procured a power supply contract that switched electric generation fuel supply from a mix of coal and nuclear power to a mix of natural gas and a small percentage of renewably powered electricity, announcing a 70% air pollution reduction in the region's power mix. The contract also included solar photovoltaic demonstration projects in each of the eight counties. NOPEC's contracting process was led by Scott Ridley, an energy consultant who had worked with Fenn to develop Community Choice Aggregation in Massachusetts and was a consultant for the Cape Light Compact.


In 2002, California State Legislature passed Assembly Bill 117, enabling Community Choice Aggregation (CCA). Not only did the Bill allow CCAs, but it mandated that customers be automatically enrolled in their local CCA, with an option to opt out.

In the early days of the California energy crisis, Paul Fenn, the Massachusetts Senate Energy Committee director who conducted the legal research and drafting of the original CCA legislation, formed Local Power Inc.[6] and drafted new CCA legislation for California.[7] In a campaign organized by Local Power, the City and County of San Francisco led Oakland, Berkeley, Marin County, and a group of Los Angeles municipalities in adopting resolutions asking for a state CCA law in response to the failure of California's deregulated electricity market. Fenn's bill was sponsored by then Assembly Member Carole Migden (D-San Francisco) in 2001, and the bill became law (AB117) in September, 2002.[8]

CCA formation in California was delayed by initial political opposition by the state's investor-owned utilities. In June 2010, Pacific Gas & Electric sponsored a proposition, Proposition 16, to make it more difficult for local entities to form either municipal utilities or CCAs by requiring a two-thirds vote of the electorate rather than a simple majority, for a public agency to enter the retail power business.[9] Although PG&E contributed over $46 million in an effort to pass the initiative (Prop 16's opponents, led by Local Power Inc. and The Utility Reform Network,[10] had access to less than $100,000),[11][12] Proposition 16 was defeated.

San Francisco adopted a CCA Ordinance drafted by Fenn (86-04, Tom Ammiano) in 2004, creating a CCA program to build 360 Megawatts (MW) of solar, green distributed generation, wind generation, and energy efficiency and demand response to serve San Francisco ratepayers using solar bonds.[13] Specifically, the ordinance combined the power purchasing authority of CCA with a revenue bond authority also developed by Fenn to expand the power of CCA, known as the H Bond Authority (San Francisco Charter Section 9.107.8, Ammiano), to allow the CCA to finance new green power infrastructure, worth approximately $1 Billion. In 2007 the City adopted a detailed CCA Plan also written primarily by Fenn (Ordinance 447-07, Ammiano and Mirkarimi), which established a 51% Renewable Portfolio Standard by 2017 for San Francisco.[14] Over the following decade, Sonoma and San Francisco worked with Fenn's company, Local Power Inc. on program designs focused on achieving energy localization through renewables and energy efficiency.[15]

Inspired by Climate Protection efforts, CCA has spread to cities throughout the Bay Area and the state. In 2007, 40 California local governments were in the process of exploring CCA, virtually all of them seeking to double, triple or quadruple the green power levels (Renewable Portfolio Standard, or "RPS) of the state's three Investor-Owned Utilities.

Marin Clean Energy

Marin County launched California's first CCA program, Marin Clean Energy, on May 7, 2010, offering 50%-100% renewable energy at competitive prices. Marin Clean Energy (MCE) now serves approximately 175,000 customers in Marin County, unincorporated Napa County and the cities of Benicia, El Cerrito, San Pablo, and Richmond.

MCE is helping to strengthen and democratize California's energy economy. As California's first CCA program, MCE is charting the course for a new, highly innovative approach to electricity service in the Bay Area. The organization's mission is to reduce energy-related greenhouse gas emissions by expanding access to affordable, renewable energy and energy efficiency programs while creating local economic and workforce benefits.

Sonoma Clean Power

Sonoma County created a countywide CCA, SonomaCleanPower, under the CCA law in 2013, offering power that is both greener and more locally sourced, and also to be offered at a lower cost than incumbent utility PG&E.[16][17] All participating cities include Cloverdale, Cotati, Petaluma, Rohnert Park, Santa Rosa, Sebastopol, Sonoma, unincorporated Sonoma County and the Town of Windsor.[18] Geof Syphers, one of the consultants who wrote the feasibility study and financial analysis, was named CEO on July 2, 2013. SCP started providing power on May 1, 2014.[19]

In April, 2014, Assemblymember Bradford (D-Gardena) introduced legislation (AB 2145) that would sharply limit the ability of CCAs to enroll customers. CCA advocates view AB 2145 as an existential threat to CCAs in California.[20] This bill passed in the Assembly but was defeated by the California state Senate on August 30, 2014 when the Senate's legislative session was ended without it coming up for a vote.[21]

Defining green energy

In 2015, Marin Clean Energy (MCE) Sonoma Clean Power (SCP), and Lancaster Choice Energy (LCE)–the first three CCAs established in California– voiced concerns over portions of Assembly Bill 1110, which proposes a standard for uniform disclosure of greenhouse gas emissions by energy retailers.[22][23] Many in the community saw this resistance to transparency and disclosure as an admission that their "undbundled RECs" were not as "clean" as they had publicly claimed, even though all three entities disclose their power sources publicly on an annual basis.[24][25] The three CCAs publicly praised the bill for encouraging transparency and for the intent of the bill's author to establish a consistent methodology for reporting GHG emissions. They sent “oppose unless amended” letters and made testimony saying that they were concerned that the bill would directly undermine California's Renewable Portfolio Standard and several of the efforts underway the California Energy Commission, the California Air Resources Board, and the U.S. Environmental Protection Agency to establish a GHG accounting methodology through a broad and thoughtful stakeholder, regulatory, and expert input process.

Sierra Club California, The Utility Reform Network (TURN), California Clean Power, Vote Solar, and labor unions support Assembly Bill 1110.[26]

Surprisingly, opposition to the green house gas transparency bill (AB 1110) included MCE, SCP, and LCE, the existing CCAs. Additional opposition came from LEAN Energy US and the California Municipal Utilities Association who have also voiced similar concerns with the inconsistencies of AB 1110 and have encouraged certain amendments.[27] Embarrassingly, LEAN Energy drew harsh criticism when the letter LEAN circulated in opposition to AB 1110 ("the greenhouse gas transparency bill") mistakenly, and incorrectly, stated that it was from the Executive of Marin Clean Energy. Questions of conflict between the agencies have arisen with LEAN's executive in the past.[28][29]

Assembly Bill 1110 received a 9-0 unanimous vote of approval in the State Senate Energy, Utilities, and Communications Committee. Several of these votes were contingent on the bill's author agreeing to adopt the Committee's recommended changes to address inconsistencies with current law and to continue working with key stakeholder groups to ensure AB 1110 creates sound public policy.[30]

CCAs are capable of surpassing the known benchmarks of greener and cheaper power for the communities they serve. Both Sonoma Clean Power and Marin Clean Energy have provided remarkably cleaner energy and competitive, often cheaper, rates than their investor-owned private competitor, Pacific Gas & Electric, for every year they have been in operation. Lancaster Clean Energy is projected to do the same in their first year of service.

Growing popularity and expansion

Community Choice has become a central part of the state's strategy to achieve its climate change goals.[31] As of 2015, over 25 cities and four counties have created or joined a CCA in California.[32]

Communities in Southern California have started to investigate the feasibility of forming CCAs because the program allows some flexibility in choosing the mix and sources of power production. A study by The Local Government Commission (LGC) published in February 2009 evaluated forming a CCA and has been published to the California Energy Commission website.[33]

Monterey Bay Community Power is working to implement CCA with the support of local governments throughout the counties of Santa Cruz, Monterey, and San Benito.

Sonoma Clean Power is not allowing new members to join until 2017 because SCP has not finished buying power and rolling out the program in Sonoma.

Communities that want more control can create their own CCA. There is a growing support for micro-CCAs that are able to keep their resources and energy local. Environmental groups across California are pushing for best practices and learning from the experiences of Marin Clean Energy and Sonoma Clean Power. Full service providers are also now offering cleaner power at better rates than before.


The state of Illinois adopted a CCA law in 2009, which has led to an explosion of communities providing electricity services to over 2/3 of the state's population as of 2014, including the city of Chicago, whose mayor, Rahm Emanuel, is focusing the program on reducing coal power production and increasing renewable energy.[34]

As of October 2013, 671 Illinois cities and towns (representing 80% of the state's residential electricity market) have utilized CCA.[35]

By the end of 2013, 91 local governments in Illinois (representing 1.7 million state residents) used the state's 2009 CCA law to purchase 100% renewable electricity for their communities.[36]

New Jersey

New Jersey adopted a CCA law in 2003, but did not see active formation of aggregations until 2013, when Bergen county, Jackson county, and fifteen other cities and counties started CCA programs, focused on both lowering electric bills and in some cases greening their power supply, or both.[37]

New York

The New York State Public Service Commission (PSC) has identified CCA as consistent with the stated goals of the regulatory reform “Reforming the Energy Vision” (REV), and has stated that local energy planning gives municipalities better opportunities to realize the benefits of distributed energy resources enabled by REV.[38] CCA legislation had been filed in the New York state assembly in February 2014,[39] followed by Governor Andrew Cuomo's order directing the PSC to implement CCA directly under its own authority in December 2014.[40]

In December 2014, non-profit organization Sustainable Westchester submitted a petition to the PSC on behalf of its member municipalities to implement a CCA demonstration program in Westchester County. The PSC granted the Order on February 26, 2015 authorizing Sustainable Westchester to put out an RFP and award contracts for both electric and natural gas supply for residents and small businesses within municipalities in the county that pass a resolution to join the CCA. "The Sustainable Westchester pilot is expected to provide valuable experience on CCA design and outcomes that, in addition to the many comments in that proceeding, will assist the Commission in making a determination on statewide implementation of CCA."[41]

The program will launch in 2015 becoming the first operational CCA in New York State, and similar local CCA organizing efforts are underway in Ulster County, Sullivan County, Hudson Highlands, and other communities.[42]


  1. Local Power Inc. website
  2. National Renewable Energy Laboratory article
  3. Electric Power Alert, Volume V. No.1 - January 4, 1995
  4. Fast Company Magazine article
  5. Bates Magazine article
  6. Local Power Inc. website
  7. Good Magazine article
  8. New York Times article
  9. San Francisco Chronicle, "PG&E initiative on power suppliers on ballot", January 14, 2010
  10. No on 16 Website on the Internet Archive
  11. Capitol Weekly, "Initiative backers submit paperwork promising a busy 2010 cycle", October 22, 2009
  12. Santa Cruz Sentinel, "Prop 16 is June's priciest ballot initiative, with PG&E coughing up big money", March 25, 2010
  13. San Francisco Weekly article
  14. Renewable Energy World article
  15. North Bay Bohemian article
  16. San Francisco Chronicle article January 8, 2014
  17. [1] Santa Rosa Press Democrat article
  22. AB 1110
  30. Unanimous vote for AB 1110
  34. Midwest Energy News article
  35. Lean Energy U.S. (October 2013). "CCA By State - Illinois". Retrieved 2014-03-21. 
  36. WWF (March 2014). "91 Illinois Communities Powered 100% By Green Electricity". CleanTechnica. Retrieved 2014-03-09. 
  37. North Jersey Herald News article January 23, 2014

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