Connecticut Green Bank

What Connecticut Green Bank does

Connecticut Green Bank is a quasi-public state agency and the nation's first green bank, established in July 2011 by the Connecticut General Assembly through Public Act 11-80 to accelerate green energy adoption. The organization operates a green bank model that deploys limited public dollars to mobilize private capital investment in clean energy and environmental infrastructure projects, achieving a $6.70 private leverage ratio for every $1 of public funds committed and $3.11 billion in total capital deployed through FY 2025. Its product portfolio spans Home Solutions (Smart-E Loans for residential energy improvements, Energy Storage Solutions battery incentives, Residential Solar Options), Building Solutions (C-PACE financing for commercial properties, Solar PPA, Solar Roof Lease, Multifamily Financing), and Investment Solutions (Green Liberty Bonds and Notes, Electric School Bus Financing, EV Charging Carbon Credits, Green Bank Capital Solutions).

The underlying technology and methodology combines proprietary financing mechanisms — notably C-PACE with senior lien position and up to 25-year terms tied to property tax assessments — with a Verified Carbon Standard-accredited EV charging carbon credit methodology. Distribution operates through a multi-channel model: 90+ participating contractors, local participating lenders (credit unions and community banks), utility partnerships with Eversource and United Illuminating, and a crowdfunding distribution channel via Honeycomb Credit. Recent additions include an AI-driven virtual power plant program with GoodLeap and Solar MAP+ for affordable multifamily housing.

The business model generates revenue through multiple streams: interest income from financing products (Smart-E Loans, C-PACE, multifamily financing), Green Liberty Bond and Note issuance to retail investors, program administration fees (Energy Storage Solutions administered on behalf of utilities under PURA oversight), and transaction facilitation in C-PACE capital markets. The organization serves residential homeowners, commercial and nonprofit property owners, municipalities, state agencies, multifamily housing providers, contractors, capital providers, and vulnerable/environmental justice communities (with 40% of investment directed to vulnerable communities). Its 2021 legislative expansion (House Bill 6441) extended the mandate beyond clean energy into broader environmental infrastructure including climate adaptation, water, waste, agriculture, and carbon markets.

Name

Connecticut Green Bank

Legal name

Connecticut Green Bank

Website

https://ctgreenbank.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Connecticut Green Bank is a quasi-public state agency and the nation's first green bank, deploying financing products (Smart-E Loans, C-PACE, Green Liberty Bonds) to accelerate clean energy adoption across Connecticut by leveraging $1 of public funds into $6.70 of private investment, serving residential homeowners, commercial property owners, municipalities, and multifamily housing providers.

Ownership category

akta.pro rank

Product category

Green Energy Financing

NAICS

Commercial Banking (522110), Depository Credit Intermediation (5221), Savings Institutions and Other Depository Credit Intermediation (522180), Funds, Trusts, and Other Financial Vehicles (525)

SIC

Federal & Federally-Sponsored Credit Agencies (6111), State Commercial Banks (6022), Functions Related To Depository Banking, Nec (6099)

akta.pro primary industry

Policy Banks (Government-Directed Lending Banks) (FSABAKAM)

akta.pro secondary industries

Infrastructure & Project Finance Development Banks (FSABAKAD), Climate Finance Funds & Green Investment Facilities (BPADACAH), Sustainable Private Markets (Impact PE/VC, Private Credit, Infrastructure) (FSAAALAG), Energy Efficiency & Green Retrofit Financing (FSALAHAK)

Keywords

• Clean energy financing
• Green bank lending
• Property assessed financing
• Residential solar financing
• Commercial energy efficiency

Headquarters

HQ city

Rocky Hill

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Financing Products: Interest income from loans including Smart-E Loans, multifamily financing, C-PACE financing, and capital solutions for clean energy projects. Green Bank deploys capital to catalyze private investment in green economy projects across Connecticut.
2. Green Liberty Bonds and Notes: Issuance of green bonds and notes to retail investors to raise capital for clean energy projects. Minimum denomination of $100 for Notes, with quarterly offerings in 2026.
3. Program Administration: Administration of incentive programs including Energy Storage Solutions paid for by electric ratepayers, RSIP, and other state programs overseen by PURA
4. C-PACE Capital Provider Facilitation: Facilitation of C-PACE financing transactions where capital providers lend to property developers, with assessment placed on property and billing managed by Green Bank

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels8 records

Core offering

Connecticut Green Bank is a quasi-public state agency that mobilizes private capital to finance clean energy and environmental infrastructure projects across Connecticut. It offers a portfolio of financing products including Smart-E Loans for residential energy improvements, C-PACE for commercial properties, Green Liberty Bonds/Notes for retail investors, and incentive programs for solar and battery storage, leveraging public dollars to attract multiples of private capital investment.

Product overview

Connecticut Green Bank operates as a quasi-public financing entity offering a comprehensive portfolio of green energy products organized across five solution categories: Home Solutions (Smart-E Loans, Energy Storage Solutions, Residential Solar Options), Building Solutions (C-PACE financing, Solar PPA, Solar Roof Lease, Multifamily Financing, Energy Storage Solutions for commercial properties), Investment Solutions (Green Liberty Notes & Bonds, Electric School Bus Financing, EV Charging Carbon Credits, Green Bank Capital Solutions), Contractor Solutions (partner programs for home and building contractors), and Community Solutions (Solar MAP+ for municipalities and affordable housing). The Green Bank leverages public funds to attract private capital, deploying over $3.11 billion in total investment since inception with a leverage ratio of $6.70 for every $1 of public funds committed.

Differentiator

Problem solved

Functional benefit

Products and services

• Smart-E Loans Low-interest financing product for home energy improvements offered in partnership with local lenders and contractors. Covers over 90 home improvements including insulation, windows, heat pumps, solar panels, floodproofing, and plumbing. Features no money down, fixed monthly payments, and loan terms up to 15 years with APR ranging from 6.99% to 7.99%. Maximum loan amount $50,000. For residential homeowners in Connecticut.
• Energy Storage Solutions Battery storage incentive program for homeowners and commercial properties providing upfront and performance incentives to lower the cost of buying battery systems. Helps increase resiliency during power outages and supports grid stability. Administered in partnership with Eversource and UI, overseen by PURA, and paid for by electric ratepayers. Offers rebates of $7,000 to $8,000 for participating in the virtual power plant program with GoodLeap.
• Residential Solar Options Solar photovoltaic systems for homeowners to lower electricity costs. Connecticut Green Bank helps homeowners access solar through financing options, incentive programs, and contractor connections. Systems have 25+ year lifespan. Program has served over 46,000 households since 2012.
• C-PACE (Commercial Property Assessed Clean Energy) Property-based financing mechanism that funds energy efficiency, renewable energy, water, and resilience improvements for commercial, nonprofit, and multifamily buildings. Repayment is tied to the property through a special assessment on tax bills, with terms up to 25 years. Senior position to mortgages with mortgage holder consent. For commercial property owners, developers, and capital providers.
• Solar Roof Lease Lease program allowing commercial building and nonprofit roof owners to generate passive income by leasing unused roof space to the Green Bank for solar PV system installation. Building owners receive fixed payments, with no upfront costs or debt. For commercial and nonprofit property owners with suitable roof space.
• Solar PPA (Power Purchase Agreement) Agreement allowing commercial and nonprofit properties to go solar with no upfront installation costs. Customers purchase electricity generated by the solar system at a discount to grid power, with positive cash flow in year one and no debt incurred. For commercial and nonprofit property owners seeking solar without capital outlay.
• Multifamily Financing Financing solutions for multifamily building owners (5+ units) including C-PACE, Solar MAP+, LIME (Loans Improving Multifamily Efficiency), and Solar Roof Lease options. Covers pre-development loans to financing for affordable-rate properties. For owners of multifamily housing with 5 or more units.
• Green Liberty Notes and Bonds Investment products allowing individuals to invest in Connecticut's green economy starting at $100 minimum. Green Liberty Notes offered through Honeycomb Credit crowdfunding platform with quarterly offerings, raising over $4 million through end of 2025. Green Liberty Bonds support residential solar PV and energy efficiency projects. For individual investors, Connecticut citizens, and nationwide impact investors.
• Electric School Bus Financing Low-interest financing products to help school districts address capital barriers for electric school bus adoption. Covers bus costs, charging equipment (up to 5 years), and electric system upgrades (up to 20 years). Additional opportunities for projects in Distressed Municipalities and underserved communities. For Connecticut school districts and municipalities.
• EV Charging Carbon Credits Carbon offset credit program for EV charging station owners. Connecticut Green Bank aggregates charging stations to generate third-party certified carbon offset credits, enabling revenue sharing for station hosts (~$40-$75 per charger per year). Methodology accredited by Verified Carbon Standard. For EV charging station owners and operators.
• Green Bank Capital Solutions Open RFP-based financing access for unique clean energy and environmental infrastructure projects that don't fit standard programs. Provides capital to Connecticut projects that catalyze clean energy deployment, GHG reduction, environmental infrastructure, public health outcomes, job creation, and economic development. For project developers and organizations with unique clean energy projects.
• Solar MAP+ (Solar Marketplace Assistance Program Plus) Program that helps affordable multifamily housing providers, municipalities, and state agencies navigate the solar marketplace. Provides hands-on support to simplify every step of the solar and battery storage installation process. Eight properties receiving funding to install solar energy systems delivering approximately 2.4 MW of clean energy to 473 residential units.
• AI-Driven Virtual Power Plant Program Virtual power plant program developed in partnership with GoodLeap that networks home batteries using AI to manage and coordinate distributed energy resources, reducing strain on the electric grid during peak demand hours. Target capacity: 25 MW from 3,000+ subscribers. Offers customers rebates of $7,000 to $8,000 for allowing their batteries to discharge during peak demand hours.

Quantifiable outcome

• 11.8 million tons of CO2 equivalent avoided
• +6 more outcomes

Named customers11 records

Segments8 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature4 records

Partnerships

Eleven partnerships are on record, tiered core, minor and legacy.

• Catalyst PowercoreStrategic or Co-development Partner · 16 June 2026Partnership to advance commercial solar deployment across Connecticut. Successfully financed a five-site distributed solar portfolio totaling 1,025 kW-DC across Hartford and Trumbull, comprised primarily of sub-200 kW commercial rooftop projects. Expected to avoid more than 500 metric tons of carbon emissions annually. Partnership addresses market barriers through standardized engineering and streamlined diligence.
• UplightcoreTechnology or Integration · 28 January 2026Partnership to streamline customer enrollment in Connecticut's Energy Storage Solutions program. Uplight provides demand flexibility solutions and smart thermostat demand response programs to help utilities manage peak demand, reduce costs, and improve grid reliability.
• GoodLeapcoreTechnology or Integration · 28 August 2025Partnership to launch AI-driven virtual power plant program networking home batteries to reduce strain on electric grid. GoodLeap set goal to sign up over 3,000 subscribers with approximately 25 MW capacity in first year. Program offers customers rebates of $7,000-$8,000 for allowing battery discharge during peak demand hours.
• Raise GreenminorOthers · 4 December 2024Honeycomb Credit acquired certain assets of Raise Green, a firm focused on climate-related investments. Raise Green sold certain assets without its funding portal license. Acquisition aims to expand impact investment opportunities.
• PosiGenlegacyStrategic or Co-development Partner · 1 January 2015Solar for All partnership to bring solar and energy efficiency to underserved communities. Program was active 2015-2021 and nationally recognized for increasing accessibility and affordability of clean energy. Won 2018 CESA SLICE award.
• EversourcecoreStrategic or Co-development PartnerJoint administration of Energy Storage Solutions program, which provides upfront and performance incentives for battery storage installations. Program is overseen by PURA, paid for by electric ratepayers, and administered by Connecticut Green Bank, Eversource, and UI.
• United Illuminating (UI)coreStrategic or Co-development PartnerJoint administration of Energy Storage Solutions program with Eversource and Connecticut Green Bank. UI customers can access battery storage incentives through the program.
• Honeycomb CreditcoreChannel Partner/ Reseller/ DistributorPartnership to offer Green Liberty Notes through online crowdfunding platform. Notes offered with minimum denomination of $100. Partnership enables Connecticut citizens and nationwide investors to participate in green investment opportunities.
• QcellscoreStrategic or Co-development PartnerPartnership through Energy Storage Solutions program. Qcells advanced clean reliable energy future by utilizing the program for solar and storage projects.
• Hanwha Aerospace USAcoreStrategic or Co-development PartnerPartnership through Energy Storage Solutions program for energy storage deployments.
• PACENationminorOthersIndustry organization tracking C-PACE financing. Reports $9.717 billion in cumulative commercial PACE investment through December 2024, covering 3,581 projects and supporting an estimated 122,000 job-years.

Scale indicators20 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Renew Financial: One of the largest national C-PACE financiers, directly competing with Connecticut Green Bank's C-PACE offering for commercial and multifamily property owners seeking long-term clean-energy financing.
• NY Green Bank: A state-sponsored green bank under NYSERDA that uses public and concessional capital to mobilize private investment in clean energy across New York. Operates an analogous financing and leverage model to Connecticut Green Bank.
• Petros PACE Finance: National C-PACE capital provider active in multiple states; competes directly with Green Bank's C-PACE financing for commercial property retrofits and new construction.
• Ygrene Energy Fund: Residential and commercial PACE financing provider operating across multiple U.S. states; competes with the Green Bank's C-PACE and Smart-E Loan products on similar terms.
• Coalition for Green Capital: Non-profit that designs and helps stand up state and municipal green banks across the U.S., modeled on the Connecticut Green Bank. Directly comparable mission and capital-catalyzation playbook.
• CleanFund: National C-PACE financing platform serving commercial real estate owners; directly comparable to Connecticut Green Bank's C-PACE and building solutions offerings.

Others

• Honeycomb Credit: Crowdfunding platform that powers Connecticut Green Bank's Green Liberty Notes offerings; adjacent infrastructure partner rather than a competitor.
• PACENation: Industry association tracking C-PACE market data ($9.7B+ cumulative through Dec 2024); ecosystem enabler and policy advocate for the same C-PACE asset class that the Green Bank originates.

Broad incumbents

• Generate Capital: Large-scale sustainable infrastructure financier operating across distributed solar, storage, and clean energy projects nationally; broader portfolio overlap with Green Bank's investment solutions and capital provider mandates.

Regional players

• Massachusetts Clean Energy Center: State quasi-public clean energy financing and innovation hub in Massachusetts with overlapping mission and program structures, though not a direct geographic competitor to Connecticut Green Bank.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/ctgreenbank
• Facebookfacebook.com/ctgreenbank
• LinkedInlinkedin.com/company/ctgreenbank
• Instagraminstagram.com/connecticutgreenbank

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds6 records

Investors1 record

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

M&A

Investments6 records

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

Frequently asked questions about Connecticut Green Bank