Report

Decarbonizing the Peak: A Roadmap for Retiring and Replacing Massachusetts’ Fossil Fuel Peaker Plants by 2050

Massachusetts has committed to achieve net-zero emissions by 2050, a goal that requires retiring the state’s fossil fuel peaker power plants and replacing them with clean, reliable alternatives. This report by the Massachusetts Clean Peak Coalition, with analysis from Synapse Energy Economics, shows that net-zero technologies can meet the state’s peak electricity demand by 2050 while maintaining reliability and containing costs.

The High Cost of AI: How Data Centers Are Reshaping Pennsylvania’s Energy Landscape

This report details the impacts of rising energy demand from data centers in Pennsylvania and explains how the current trajectory will increase fossil fuel energy generation, raise energy costs, and worsen local air quality. The report includes recommendations for how community advocates and policymakers can push back against potentially harmful data center growth in their state. 

Location, Location, Location: An Economic Comparison of Large-Scale Batteries Installed in Front of vs. Behind the Meter in Massachusetts

This report compares the costs and benefits of one utility-scale, front-of-the-meter (FTM) battery system versus five commercial-scale, behind-the-meter (BTM) batteries of the same aggregate cost in Massachusetts. The report, commissioned by Clean Energy Group for the Cape and Vineyard Electric Cooperative (CVEC), provides useful information to help CVEC decide between two possible ownership models for…

Evaluating Hydrogen for Long Duration Energy Storage: Costs, Risks, and Equity Considerations

This CEG report contains new analysis evaluating the feasibility of hydrogen power plants as long-duration energy storage resources, based on cost competitiveness as well as equity and environmental impacts.

Clean Energy Group 2024 Impact Report

This annual impact report highlights Clean Energy Group’s key initiatives and achievements in 2024. It also recognizes the invaluable contributions of our partners—including community-based organizations, state agencies, and national laboratories—whose collaboration strengthens our mission.

Solar+Storage+Electrification: A Clean Energy Equity Model For Massachusetts

A Massachusetts pilot program provides a replicable and scalable model for bringing renewable energy, battery storage, and electrification to low-income households. The Cape and Vineyard Electrification Offering (CVEO) is run by the Cape Light Compact, an energy services provider serving 210,000 customers in 21 towns on Cape Cod and Martha’s Vineyard. The CVEO pilot is…

Draft Connecticut Climate Resilient Energy Code

The draft Connecticut Climate Resilient Energy code is a voluntary code intended to cover the installation of climate resilient energy systems and the provision of power to critical services during grid outages. The code covers the installation of climate resilient energy systems including solar, energy storage, and efficient heating and cooling to maintain living conditions…

Optimizing Energy Resilience to Support Medically Vulnerable Residents in Multifamily Affordable Housing

Power outages can quickly turn into a health crisis for the millions of Americans that rely on electricity for home medical devices, including life-support equipment (such as dialysis machines and ventilators) and technologies for independent living (such as electric wheelchairs, refrigeration for medicine, and internet for telehealth appointments). Many electricity-dependent residents live in multifamily affordable…

A Community Assessment of Health Impacts from the Pittsfield Generating Facility on Local Communities

This report assesses the community health impacts of a fossil fuel peaker power plant in Pittsfield, Massachusetts. Built in 1990, the oil and gas-powered Pittsfield Generating Facility runs only during times of peak electricity demand, producing some of the most expensive and polluting energy on the grid. As the facility ages, its rate of pollution…

Equitable Resilience: Opportunities to Advance Solar Paired with Battery Storage in Historically Marginalized Communities

This report by Clean Energy Group (CEG) presents findings resulting from the Resilience, Storage and Grid Benefits Community of Practice, an effort through the Equitable Solar Communities of Practice program initiative by The U.S. Department of Energy Solar Energy Technologies Office.