Resource Library

Here you will find CESA's reports, guides, case studies, videos, and more. These resources are listed in chronological order, with the most recent first.

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What States Need to Know About Networked Geothermal

April 29, 2026

This short paper by CESA answers foundational questions about networked geothermal. It is intended to support early understanding and decision-making by CESA Members and other state officials.

The Opportunity for Networked Geothermal Energy in Colorado: A Video Interview with Bryce Carter at the Colorado Energy Office

April 29, 2026

CESA staff sat down with Bryce Carter, Geothermal Program Manager at the Colorado Energy Office, to talk about the efficiency of geothermal heat pumps and the potential for networked geothermal—interconnected geothermal systems that span across multiple buildings—to revolutionize clean heating and cooling.

Comments on Maine DOER Draft Request for Proposals for Energy Storage Projects

April 20, 2026

CESA submitted comments to the Maine Department of Energy Resources regarding its draft request for proposals (RFP) for energy storage projects. CESA applauds the draft RFP, but encourages DOER to include fossil fuel peaker power plant replacement among the potential benefits of energy storage to be included in the RFP and to be considered when evaluating proposals.

Virtual Power Plant Programs Summary Table

February 25, 2026

Over the past decade, the number of Virtual Power Plants (VPPs) in the U.S. has grown from a handful of small pilots to dozens of programs, some with thousands of participating ratepayers. Battery owners (or leasers) in approximately half the states in the country now have the opportunity to enroll in a VPP, to provide grid services and be compensated in return. This table summarizes the VPP programs that include battery storage, and provides links to relevant program pages and documents.

Program Design for Battery-Based Virtual Power Plants

February 25, 2026

This issue brief by CESA covers BVPP program design. The brief surveys and summarizes the characteristics of existing BVPPs, discusses design elements such as battery ownership and compensation mechanisms, and provides a high-level overview of the current state of BVPPs in the United States

Lessons Learned from Puerto Rico’s First Virtual Power Plant

February 10, 2026

This CESA case study profiles Puerto Rico’s first VPP program. The study explores how customer-centered program design and collaborative efforts between the utility, program aggregators, and end users helped bring LUMA Energy’s Customer Battery Energy Sharing (CBES) program to life and scale it into a model for clean, resilient power.  

Directory of State Low- and Moderate-Income Clean Energy Programs

February 4, 2026

This directory lists and describes state clean energy programs for low- and moderate-income residents and communities.

How States Can Address Load Growth While Decarbonizing

January 21, 2026

This CESA report aims to help state officials, as well as other stakeholders, understand how policymakers can respond to electric load growth in ways that continue to advance decarbonization of the electricity system.

What States Need to Know About Plug-In Solar

January 9, 2026

This paper provides information and guidance on plug-in solar configurations, regulatory issues, economics, and safety concerns.

Table of State Energy Storage Targets, Progress, and Comments

January 8, 2026

This table includes all existing state energy storage procurement mandates, targets, and goals.