Clean Energy Group

What Clean Energy Group does

Clean Energy Group (CEG) is a 501(c)(3) nonprofit organization founded in 1998 and headquartered in Montpelier, Vermont. It works to advance equitable climate solutions by providing policy analysis, technical assistance, and programmatic support to state energy agencies, local governments, community-based nonprofits, and environmental justice communities across the United States. The organization is organized around four focus areas: Climate Resilience and Community Health, Distributed Energy Access and Equity, Energy Storage and Flexible Demand, and Fossil Fuel Replacement, and operates a portfolio of roughly eleven initiatives including the Technical Assistance Fund, Resilient Power Project, Virtual Power Plant Acceleration, Phase Out Peakers, Climate Resilient Energy Codes, and a newer Data Center Energy Accountability program.

CEG's core "technology" is its research, publications library, and convening capacity rather than any commercial product or platform. The organization produces reports, case studies, model codes, webinars (including the "Beyond Lithium" series covering iron-air, iron-flow, and other long-duration storage technologies), and direct consulting deliverables. Its expertise spans solar+storage systems, long-duration energy storage (iron flow, compressed air, iron-air), virtual power plants, hydrogen pathways, and microgrids. It maintains a four-star Charity Navigator rating and a GuideStar Gold Seal of Transparency.

The business model is grant-funded rather than commercial. Revenue derives from foundation grants, government program funding, and fee-based consulting services delivered to public sector and nonprofit clients (e.g., Massachusetts and Pennsylvania state governments). CEG is not a publicly traded entity, has no disclosed venture funding, and operates as a community-led, mission-driven organization with 11-50 employees and a national footprint spanning all major U.S. regions.

Name

Clean Energy Group

Legal name

Clean Energy Group, Inc.

Website

https://cleanegroup.org

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Clean Energy Group is a 501(c)(3) nonprofit founded in 1998 that provides clean energy policy analysis, technical assistance, and program implementation support to U.S. state and local governments, community organizations, and environmental justice groups nationwide.

Ownership category

akta.pro rank

Product category

Clean Energy Policy and Technical Assistance

SIC

Electric & Other Services Combined (4931)

akta.pro primary industry

Renewable Energy & Clean Tech Access (Off-grid, Energy Poverty Solutions) (BPAGALAE)

akta.pro secondary industries

DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC), Distributed Storage (Behind-the-Meter Batteries) (EUAMAJAE)

Keywords

• Clean energy policy
• Energy storage consulting
• Climate resilience programs
• Renewable energy advocacy
• Nonprofit technical assistance

Headquarters

HQ city

Montpelier

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Grants and Foundation Funding: Clean Energy Group operates as a 501(c)(3) nonprofit organization funded primarily through grants from foundations and government agencies supporting clean energy and climate equity initiatives.
2. Consulting Services: The organization offers consulting services to state agencies, local governments, and nonprofits seeking technical assistance with clean energy planning, policy development, and program implementation.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Clean Energy Group is a nonprofit policy and technical assistance organization that advances equitable clean energy solutions. It provides consulting, policy analysis, program design, regulatory advocacy, and capacity-building services to state agencies, local governments, and community organizations on topics including solar+storage, long-duration energy storage, virtual power plants, hydrogen, microgrids, and fossil fuel replacement.

Product overview

Clean Energy Group is a nonprofit organization (not a technology product company) that offers a portfolio of initiatives and programs focused on advancing equitable climate solutions. Rather than a unified software product, CEG provides multiple programmatic offerings including the Clean Energy Incentive Navigator, Technical Assistance Fund, Resilient Power Project, and various policy/advocacy initiatives around energy storage, virtual power plants, hydrogen, and fossil fuel replacement. These programs deliver technical assistance, policy support, community engagement, and financing connections to accelerate clean energy deployment with a focus on equity and resilience.

Differentiator

Problem solved

Functional benefit

Brands

• Beyond Lithium: A webinar series focused on alternative energy storage solutions beyond lithium-based systems
• Virtual Power Plant Acceleration

Products and services

• Consulting Services Direct consulting and technical assistance engagements provided to state agencies, local governments, and nonprofit organizations on clean energy policy, program design, regulatory development, and equitable energy deployment.
• Clean Energy Incentive Navigator A technical assistance program that helps communities navigate clean energy incentives by providing guidance on funding opportunities and program design.
• Virtual Power Plant Acceleration Supports states and local governments in deploying and scaling virtual power plants through technical assistance, policy support, community engagement, and financing connections.
• Resilient Power Project Provides technical assistance and funding support for solar+storage installations at community facilities serving low-income populations, including community health centers, fire stations, and affordable housing facilities.
• Technical Assistance Fund Offers technical assistance and funding connections for community solar and energy storage projects, with emphasis on environmental justice communities.
• Energy Storage Policy and Regulation Provides policy analysis, regulatory comments, and advocacy for energy storage deployment and equitable access to storage technologies.
• Climate Resilient Energy Codes Develops model energy codes and standards that integrate climate resilience considerations for buildings and energy infrastructure.
• Health and Energy Security Focuses on ensuring healthcare facilities and vulnerable populations have access to reliable, resilient power during emergencies.
• Hydrogen Information and Public Education Provides research and analysis on hydrogen production, uses, costs, and environmental implications for long-duration energy storage and other applications.
• Phase Out Peakers Advocates for retiring and replacing fossil fuel-fired peaker power plants with clean energy alternatives like battery storage.

Quantifiable outcome

• 92 GW of solar and 40 GW of storage potential identified for Massachusetts alone
• +2 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered core and minor.

• Clean Energy States Alliance (CESA)coreStrategic or Co-development Partner · 8 May 2026CESA is the parent organization launching a national initiative to support US states and local governments in deploying and scaling virtual power plants. Clean Energy Group appears to be closely affiliated with CESA, with shared leadership (Seth Mullendore serves as President and Executive Director of Clean Energy Group and is involved in CESA initiatives).
• World Resources InstitutecoreStrategic or Co-development Partner · 8 May 2026World Resources Institute is a key partner in the national virtual power plant initiative, contributing to technical assistance, policy support, and community engagement efforts.
• Justice Climate FundminorStrategic or Co-development Partner · 8 May 2026Justice Climate Fund participates as a partner in the VPP acceleration initiative, providing funding and programmatic support for equitable clean energy deployment.
• ESS Tech, Inc. (GWH)minorStrategic or Co-development PartnerESS Tech participated in Clean Energy Group's 'Beyond Lithium' webinar series, presenting iron flow battery technology as an alternative to lithium ion for energy storage. CEO Drew Buckley presented during the webinar moderated by Seth Mullendore.

Scale indicators3 records

Direct peers

• Clean Energy States Alliance (CESA): CESA is the directly affiliated coalition of state clean energy agencies that co-launches CEG's national Virtual Power Plant initiative and shares leadership; it is the closest peer given overlapping mission and program scope.
• Rocky Mountain Institute (RMI): RMI is a comparable clean energy nonprofit delivering policy analysis, technical assistance, and program design support to states, utilities, and communities across the same energy transition and equity topics as CEG.
• World Resources Institute: WRI is a peer and active VPP initiative partner; it conducts global energy policy research and technical assistance targeting decarbonization, equity, and distributed energy — directly overlapping CEG's focus areas.
• Environmental and Energy Study Institute (EESI): EESI is a comparable nonprofit that produces policy analysis, educational resources, and briefings on clean energy, energy storage, and equity for federal and state policymakers — directly overlapping CEG's publications and advocacy model.
• Vote Solar: Vote Solar is a clean energy advocacy nonprofit focused on state-level distributed solar and storage policy, mirroring CEG's state-engagement model and competing for similar foundation grants.
• GRID Alternatives: GRID Alternatives is a peer nonprofit deploying solar and storage for low-income and environmental justice communities, overlapping CEG's Resilient Power Project and equity-focused technical assistance.
• Interstate Renewable Energy Council (IREC): IREC is a peer nonprofit building clean energy regulatory and workforce capacity at the state and local level, closely aligned with CEG's technical assistance and policy support model.

Broad incumbents

• Natural Resources Defense Council (NRDC): NRDC is a much larger environmental advocacy organization with parallel clean energy, climate resilience, and equity programs that compete for the same philanthropic and government funding as CEG.
• National Renewable Energy Laboratory (NREL): NREL is a federally funded research lab producing technical analysis on solar, storage, VPPs, and grid integration; it underpins much of the data CEG references and competes for policy-maker mindshare.
• Sierra Club: Sierra Club is a large environmental advocacy organization active in fossil fuel replacement and clean energy policy at the state and federal level, competing for member-driven advocacy funding adjacent to CEG's mission.

Market position

Strengths4 records

Weaknesses5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@ceg-cesa
• Facebookfacebook.com/Clean.Energy.Group
• LinkedInlinkedin.com/company/clean-energy-group
• Xx.com/cleanenergygrp

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Clean Energy Group