Publications Library

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

February 18, 2026

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

February 3, 2026

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. 

Vieques Microgrid Network: Community Resilience for a Remote Island in Puerto Rico

January 15, 2026

In September 2017, Hurricane Maria knocked out all power across Puerto Rico. Vieques, an island of about 8,000 people located eight miles east of the Puerto Rican mainland, remained without electricity for 18 months, the second-longest blackout in world history. Once power was restored, service remained unreliable and expensive.   The Vieques Microgrid Network is an effort led by…

Solar and Storage Microgrids for Rural Community Health Centers

January 13, 2026

Rural community health centers depend on consistent and reliable electricity to serve their patients. Power outages pose a major risk to health center patients, who might need to defer or travel farther for care, and they have the potential to be massively expensive due to interruptions in service and loss of refrigerated vaccines and medications.…

An Introduction to Resilience Hubs

December 19, 2025

This short fact sheet introduces the concept of resilience hubs—community facilities equipped to support residents and coordinate resource distribution and services before, during, and after a power outage.  

Utility-Scale Lithium-Ion Battery Storage Fire Safety: Frequently Asked Questions

December 9, 2025

Battery energy storage systems can be a cost-effective tool for utilities to meet peak demand and provide flexibility to the power grid. When properly installed, battery storage has proven to be a safe technology, and it is becoming safer every year as more protective regulations and best practices are established. However, many communities have raised…

Residential Lithium-Ion Battery Storage Fire Safety: Frequently Asked Questions

December 9, 2025

Battery energy storage systems can serve as a clean and reliable source of backup power for homes and businesses. When properly installed, battery storage has proven to be a safe technology, and it is becoming safer every year as more protective regulations and best practices are established. However, many communities have raised concerns about battery storage…

Case Study – CrescentCare Community Health Center

December 4, 2025

When Hurricane Ida landed in Louisiana in August 2021, it decimated the area’s energy infrastructure. Over 1 million residents lost power, some for weeks, with outages impacting everything from communications to transportation. CrescentCare, a Federally Qualified Health Center in New Orleans, was forced to close when their backup diesel generators failed to come online. Residents…

Comments on Calpine Sherman Avenue Energy Center Permit Renewal Environmental Justice Impact Statement

November 25, 2025

CEG’s comments argue that battery storage is technically and financially feasible at Calpine Sherman Avenue Energy Center based on its analysis of the plant’s operations and site, contrary to Calpine’s statements.

Solar+Storage Frequently Asked Questions

November 5, 2025

Solar combined with energy storage (solar+storage) can provide cost savings and keep essential services powered during grid outages. Clean Energy Group has published a series of short fact sheets answering the following frequently asked questions about solar+storage: These fact sheets are adapted from Clean Energy Group’s 2024 publication, Understanding Solar+Storage: Answers to Commonly Asked Questions…

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