STATE GREEN BANKS FOR CLEAN ENERGY

The document analyzes state green banks as quasi-governmental financial institutions designed to leverage public funds to increase private investment in clean energy and energy efficiency. It details the operational model of Connecticut's CEFIA, highlighting its use of credit enhancements and diverse financing tools to bridge the 'deployment gap' for commercially available technologies. The paper also reviews emerging green bank models in New York, Vermont, and Hawaii, while discussing the systemic benefits and drawbacks of state-level financing authorities.

• State green banks aim to use public funds and authority to lower the cost and increase the volume of private financing for clean energy technology, effectively multiplying the impact of public dollars by leveraging private sector expertise.
• A primary objective for state green banks is to become self-sustaining by prioritizing financing tools that generate returns, such as loans and co-investing, rather than relying on grants or rebates.
• State green banks address the 'finance supply chain' and 'diffusion and deployment gap' by testing untried financing structures and providing incentives for proven technologies that are otherwise expensive due to non-monetized society-wide benefits.
• Connecticut's Clean Energy Finance and Investment Authority (CEFIA) demonstrated a high leverage ratio in FY 2013, attracting over $180 million in private investment for every $40 million of ratepayer funds, a ratio of approximately 9:1.
• CEFIA utilizes risk management tools such as loan loss reserves, where the bank may cover losses up to 7.5 percent for residential projects after the lender has first covered 1.5 percent, ensuring private lenders perform due diligence.
• The document identifies several US states that have authorized or proposed green banks, including New York (targeting $1 billion capitalization), Vermont (establishing the Vermont Clean Energy Loan Fund), Hawaii, and California.
• While state green banks reduce policy uncertainty by becoming self-supporting, they remain vulnerable to declines in federal support, as private investors are often encouraged by federal tax credits and subsidies.

APA

Kennan, H. (2014). STATE GREEN BANKS FOR CLEAN ENERGY. Energy Innovation. https://energyinnovation.org/wp-content/uploads/WorkingPaper_StateGreenBanks.pdf

Chicago

Kennan, Hallie. STATE GREEN BANKS FOR CLEAN ENERGY. Energy Innovation, 2014. https://energyinnovation.org/wp-content/uploads/WorkingPaper_StateGreenBanks.pdf.

Wikipedia

{{cite report |last1=Kennan |first1=Hallie |title=STATE GREEN BANKS FOR CLEAN ENERGY |publisher=Energy Innovation |date=January 2014 |url=https://energyinnovation.org/wp-content/uploads/WorkingPaper_StateGreenBanks.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{kennan2014state, author = {Kennan, Hallie}, title = {{STATE GREEN BANKS FOR CLEAN ENERGY}}, institution = {Energy Innovation}, year = {2014}, month = jan, url = {https://energyinnovation.org/wp-content/uploads/WorkingPaper_StateGreenBanks.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }