What Kearsarge Energy does

Kearsarge Energy is a privately held, full-service renewable energy developer that develops, finances, owns, and operates commercial-scale solar photovoltaic (PV) and battery energy storage projects across the United States. Founded in 2009 and headquartered in Boston, MA, the company targets municipalities, universities, nonprofits, and utilities — predominantly in the Northeast — and is structured as a limited partnership (Kearsarge Energy L.P.) led by Managing Partner Andrew J. Bernstein and a small team of senior executives. Across its operating history, Kearsarge has developed approximately $650 million of solar and storage projects totaling over 300 MW/MWh, including more than 42 MWh of battery energy storage systems, with assets sited on capped landfills, brownfields, agricultural land, rooftops, parking canopies, and greenfields.

The company's technology stack centers on solar PV paired with battery energy storage, augmented by advanced tracking and integrated operations & maintenance. Core offerings comprise Solar Development (full lifecycle from feasibility through interconnection), Battery Energy Storage Systems (storage development and operation), and Operations and Management (asset management, O&M vendor oversight, performance monitoring, and regulatory compliance for both owned and third-party portfolios). Revenue is generated through long-term Power Purchase Agreements (PPAs) with public-sector offtakers, retained ownership of installed assets, and recurring community solar / virtual net metering credit streams under programs such as NYSERDA Solar 4 All, MA SMART, and NH net metering. Subscriber acquisition and program administration are supported by partnerships with Freedom Energy, Common Energy, National Grid, and Reading Municipal Light Department.

Kearsarge goes to market exclusively through direct enterprise public-procurement — competitive Request for Proposal (RFP) processes and direct negotiations with public institutions — rather than through traditional marketing or a published price list. Pricing is project-based, quote-driven, and not publicly disclosed. The business is founder-led, with no disclosed private equity sponsor, and operates with a headcount in the 11-50 range consistent with a model that outsources EPC while retaining ownership, asset management, and regulatory functions in-house.

Name

Kearsarge Energy

Legal name

Kearsarge Energy

Website

https://kearsargeenergy.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

Kearsarge Energy is a privately held Boston-based renewable energy developer that develops, finances, owns, and operates commercial-scale solar and battery energy storage projects for municipalities, universities, nonprofits, and utilities across the Northeastern United States.

Ownership category

akta.pro rank

Product category

Commercial Solar and Energy Storage Development

NAICS

Solar Electric Power Generation (221114), Electric Power Generation (22111)

SIC

Cogeneration Services & Small Power Producers (4991), Electric Services (4911)

akta.pro primary industry

Renewable Energy Asset Management (Solar/Wind/Hydro/Geothermal) (EUAEAMAB)

akta.pro secondary industries

Utility-Scale BESS Project Development & Ownership (IPP/Developer) (EUAFAAAA), Renewable Energy Infrastructure (FSAAAKAG)

Keywords

• Commercial solar development
• Battery energy storage
• Solar project financing
• Community solar programs
• Power purchase agreements

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Project Development and Ownership: Kearsarge develops, owns, and operates solar and battery storage projects. The company retains ownership of installed systems and generates revenue through long-term energy generation, selling electricity through power purchase agreements and virtual net metering arrangements.
2. Power Purchase Agreements (PPAs): Long-term contracts with municipalities, universities, and public institutions to provide solar energy at negotiated rates over multi-year terms.
3. Virtual Net Metering Credits: Community solar programs that generate credits for subscribers, creating recurring revenue streams through NYSERDA and similar utility programs.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Kearsarge Energy is a full-service renewable energy developer that finances, develops, owns, and operates commercial-scale solar photovoltaic and battery energy storage projects. The company delivers turnkey solutions covering feasibility, design, permitting, financing, construction, and interconnection, and retains long-term ownership of assets to monetize electricity through multi-year Power Purchase Agreements and virtual net metering credits. Its portfolio exceeds $650 million of projects and 300 MW/MWh of capacity across capped landfills, brownfields, agricultural land, rooftops, parking canopies, and greenfields.

Product overview

Kearsarge Energy is a full-service renewable energy developer offering a unified platform of solar and energy storage services. The core offerings consist of Solar Development (end-to-end project development from feasibility through interconnection), Battery Energy Storage Systems (grid-enhancing storage with 42+ MWh portfolio), and Operations and Management (comprehensive O&M for owned portfolio and third-party assets). These three service lines work together to provide turnkey solar solutions, with the company maintaining long-term ownership of projects rather than selling to outside financial groups.

Differentiator

Problem solved

Functional benefit

Products and services

• Solar Development Full-service solar project development from feasibility analysis through financing, construction, and ongoing maintenance, including project design, permitting, construction, and interconnection for municipalities, universities, nonprofits, and businesses.
• Battery Energy Storage Systems (BESS) Battery energy storage system development and operation that enhances grid reliability while providing cost savings, with a portfolio of over 42 MWh of BESS deployed across projects.
• Operations and Management (O&M) Comprehensive O&M services for owned portfolio and third-party asset owners, including asset management, O&M vendor oversight, site performance monitoring, and regulatory compliance.

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Freedom EnergycoreGTM or Marketing PartnerCommunity solar partnership where Freedom Energy and Kearsarge collaborate on projects such as the Newport County YMCA community solar initiative, combining Kearsarge's project development expertise with Freedom Energy's community solar programs.
• Common EnergycoreGTM or Marketing PartnerCommunity solar program partnership enabling subscribers to receive credits on their electricity bills from Kearsarge-developed solar projects through Common Energy's program management platform.
• NYSERDAcoreStrategic or Co-development PartnerPartnership with New York State Energy Research and Development Authority for Solar 4 All program and other New York community solar initiatives, providing regulatory support and project development opportunities.
• National GridcoreStrategic or Co-development PartnerUtility partnership for interconnection, net metering, and virtual net metering programs supporting Kearsarge solar projects across multiple states in National Grid's service territory.
• Reading Municipal Light Department (RMLD)minorStrategic or Co-development PartnerMunicipal utility partnership for net metering and grid interconnection of Kearsarge solar projects in Massachusetts.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Nexamp: One of the largest community solar developers in the Northeast US, with a vertically integrated develop-own-operate model and deep municipal and subscriber bases. Most directly comparable peer on geography, customer mix, and ownership-retention strategy.
• BlueWave Solar: Massachusetts-headquartered community solar developer and originator with a focus on subscriber acquisition and long-term asset ownership. Closely matches Kearsarge on Northeast geography, community solar mechanics, and municipal off-takers.
• Pivot Energy: Community solar developer active in multiple US states with a build-own-operate model targeting municipalities, schools, and nonprofits. Comparable on customer vertical mix and full-lifecycle project ownership approach.
• Borrego Solar: Commercial, industrial, and community solar developer offering development, EPC, and O&M services across multiple US states. Comparable on full-service developer model and institutional/municipal customer base.

Emerging players

• Vanguard Renewables: Northeast US renewable energy developer that grew operating and construction capacity 5x under prior project development leadership. Comparable on regional focus and institutional customer mix, though primarily anaerobic-digestion rather than solar/storage.

Broad incumbents

• Clearway Energy Group: Large publicly traded owner-operator of utility-scale and distributed renewable generation, including community solar in Massachusetts and other Northeast states. Comparable on long-term asset ownership and community-solar exposure, but at materially greater scale.
• ENGIE Distributed Solar: Global energy major with a North American distributed generation arm serving municipalities, universities, and commercial off-takers. Comparable on customer vertical mix, though typically pursues larger projects than Kearsarge's mid-scale portfolio.
• EDF Renewables: Large utility-scale and distributed solar developer with active Northeast US operations and long-term asset ownership. Comparable on develop-own-operate model, though at significantly greater scale and geographic breadth.
• Lightsource bp: Global utility-scale solar developer that has expanded into community solar and battery storage in the US. Comparable on project development, ownership retention, and storage integration, with much greater capital backing.

Others

• Freedom Energy: Retail electricity supplier and community solar program operator partnering with Kearsarge on initiatives such as the Newport County YMCA project. Functions as an enabling channel partner rather than a direct competitor, but operates in the same community-solar subscriber ecosystem.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/kearsarge-energy

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Kearsarge Energy