Publications Library

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

September 4, 2025

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

July 16, 2025

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.

Comments Regarding the Advancing Massachusetts Power Straw Proposal

July 15, 2025

CEG submitted comments to the Massachusetts Department of Energy Resources (DOER) in response to DOER’s request for stakeholder feedback regarding the Advancing Massachusetts Power (AMP) straw proposal.

PEAK Coalition Comments on NYSERDA’s Residential and Retail Battery Storage Implementation Plan

November 8, 2024

The PEAK Coalition – UPROSE, THE POINT CDC, New York City Environmental Justice Alliance (NYC-EJA), New York Lawyers for the Public Interest (NYLPI), and Clean Energy Group (CEG) – a campaign to end the long-standing pollution burden from fossil fuel-fired power plants, submitted comments on NYSERDA’s 2024-2030 energy storage incentives plan. The coalition supports the…

Demanding a Better Grid: How Demand Management Can Accelerate the Phase-Out of New York City’s Peaker Power Plants

October 16, 2024

This report highlights ways to address New York City’s growing electricity demand and accelerate peaker plant retirement through robust demand management solutions that harness the flexibility of customer devices, such as smart thermostats, heat pumps, electric vehicle chargers, solar, and battery storage, to reduce stress on the electric grid. The report includes best practices for…

Understanding Solar+Storage: Answers to Commonly Asked Questions About Solar PV and Battery Storage

July 31, 2024

This guide is meant to serve as a starting point to establish a foundation of understanding for individuals and organizations beginning to explore solar+storage options for their homes, businesses, or community facilities.

Entendiendo Solar+Almacenamiento

July 31, 2024

Clean Energy Group ha publicado una traducción al español de una nueva guía que aborda las preguntas más frecuentes sobre la energía solar fotovoltaica y las tecnologías de almacenamiento de baterías (Solar+Almacenamiento).

Clean Energy Group Comments on Massachusetts DOER Solar Massachusetts Renewable Target Program

February 2, 2024

Clean Energy Group submitted comments to the Massachusetts Department of Energy Resources on DOER’s Solar Massachusetts Renewable Target (SMART) Program.

Comments on Proposed Changes to Massachusetts’ ConnectedSolutions Program

March 28, 2023

CEG submitted comments to the Massachusetts Energy Efficiency Advisory Council to express concern about potentially harmful proposed changes to the Massachusetts ConnectedSolutions program incentive rules.

Recommendations to MA EEAC on Equity Provisions for Battery Storage

July 20, 2022

CEG submitted comments to the Massachusetts Energy Efficiency Advisory Council recommending that equity provisions be developed and implemented into the ConnectedSolutions program.

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