Latest CCA Studies
2025 Study by LEAN Energy US and Mission:data
Community Choice Aggregation Customer Data Access:
A Cross-State Study of Utility Data Sharing Practices with CCAs
Click on the cover page to view the full report​​
Community Choice Aggregation (CCA) programs are transforming U.S. energy markets. Serving 15–20 million customer accounts across eight states, CCAs allow local governments to procure cleaner electricity while utilities continue to deliver and maintain the grid. This model has accelerated renewable energy adoption, supported local economies, and expanded customer choice.
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A critical enabler of CCA success is access to accurate, timely, and complete customer energy data. Our study, conducted by LEAN Energy US in partnership with Mission:data, examines data access challenges and emerging best practices for CCAs in California, Illinois, Massachusetts, New Hampshire, and Ohio.
Explore the full report to learn how robust access to customer energy data can strengthen both CCA operations and the broader energy system.
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Authors: Claire Dépit-Strömbäck with support from Michael Murray
Contributing Editors: Cody Hooven, Deana Dennis, Katherine Wyszkowski, Clifton Below, Chris Villarreal, Julien Gattaciecca
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Join our webinar on December 10 at 1 pm ET!
Register HERE.
2025 Study by Deepa Vedavyas (Harvard University)
for LEAN Energy US
The 'Power' to Choose: From Monopoly to Collective 'Power'
Click on the cover page to view the full report​​
We are pleased to share a new report developed through our collaboration with Deepa Vedavyas (Director of Resiliency and Sustainability at NOPEC), who selected LEAN as her client for her Sustainability Project Charter at Harvard University. Serving as our consultant for several months, Deepa brought fresh perspective and rigorous research to help us strengthen our role as the national hub for Community Choice Aggregation (CCA).
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This comprehensive and educational report explores the history, models, and future of community aggregation in the United States.
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Energy Aggregation Basics:
An accessible resource that simplifies the complex history of energy markets, making CCA approachable for communities, elected officials, and newcomers.
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Comparative Case Studies:
In-depth narratives from Massachusetts, Ohio, California, and New Hampshire, featuring insights from pioneering CCA leaders and field experts. These case studies create a rich peer-learning resource for communities nationwide.​
Author: Deepa Vedavyas
2023 Study by Claire Dépit-Strömbäck (LEAN Energy US)
Community Choice Aggregation: A Cost-Effective Policy Tool that Accelerates Competitive Renewable Power Addition and Carbon Reduction at Scale
​After many months of research, surveys, focus groups, and industry leader interviews, LEAN's study shows the CCA model as an efficient, equitable and cost-effective policy tool for providing competitive pricing and renewable power to a large number of electricity consumers in the United States. The study reviews state-by-state market status, national impacts, and most importantly, an analysis covering the potential of CCAs to accelerate state and national governments' environmental, social and economic goals in the energy sector.
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The slide presentation from our webinar on June 28th is available to view or download HERE.
Author: Claire Dépit-Strömbäck
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Contributing Editors: Alison Elliott, Mike Gordon, Paul Grover, John Kelly
Click on the cover page to view the full report
