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The RMI Community Energy Resource Guide offers a structured process for local governments to transition to clean energy. It outlines a 6-to-12-month planning cycle involving stakeholder collaboration, data baselining, and the selection of sector-specific tactics. The guide details strategies across four primary domains: buildings, electricity supply, transportation, and industry, while emphasizing the role of 'broad enablers' like Green Banks and updated utility regulatory models to scale implementation.

The report analyzes the financial landscape of large-scale renewable energy in California, concluding that while most projects are well-supported by existing policies like the Production Tax Credit and Renewable Portfolio Standard, specific gaps remain. These gaps include high transaction costs for tax equity, limited financing access for small and medium enterprises (SMEs), and high risks for early-stage innovative technologies. The document proposes that a public institution or 'green bank' could address these by aggregating and securitizing projects, providing alternative loan security (such as property tax-based repayment), and offering loan guarantees or concessional lending for innovative technologies.

The Union of Concerned Scientists proposes a green bank for Michigan, estimating that an initial public investment of $105 million could leverage $3.3 billion in total clean energy investments by 2030. This financial mechanism would support the deployment of 685 MW of solar capacity and reduce annual carbon dioxide emissions by 3.9 million tons, contributing 13% of the emissions reductions required for the state to meet Clean Power Plan targets. The document outlines various financial products the bank could offer, such as credit enhancements and warehousing, and identifies existing Michigan programs that could be integrated into this structure.

The Union of Concerned Scientists analyzes how a hypothetical Pennsylvania green bank, with an initial $135 million capitalization, could leverage $4.2 billion in total investment by 2030. This initiative would support 780 MW of wind and solar capacity, save $375 million annually on electricity bills, and reduce CO2 emissions by 4.8 million tons per year, contributing 11% of the state's required reductions under the Clean Power Plan.

The Union of Concerned Scientists analyzes how a hypothetical Virginia green bank with $90 million in initial capitalization could leverage $2.8 billion in total investment by 2030, significantly reducing carbon emissions and supporting the deployment of 575 MW of wind and solar capacity.

The document outlines a framework for sustainable finance based on five transaction elements: financier, principal, expenditure, agreement (source of capital), and agreement (use of capital). It identifies three primary barriers to capital flow—risk/return, information, and scale—and suggests that these can be addressed through both policy and non-policy strategies. Applying this framework to case studies, the report finds that residential solar in the U.S. is primarily hindered by consumer-side barriers and lack of standardization, whereas electric vehicle (EV) adoption is stymied by limited financier demand for infrastructure-appropriate financial instruments.

The report examines clean energy financing tools used by six U.S. states and Germany to scale up renewable energy and energy efficiency investments. It highlights the role of 'green banks' and other mechanisms in reducing financial risks for the private sector and overcoming barriers like high upfront costs and limited technical understanding among financiers. Case studies include Connecticut and New York's green banks, Pennsylvania and Kentucky's use of the Warehouse for Energy Efficiency Loans (WHEEL), Iowa's revolving loans, and Massachusetts's Mass Save HEAT Loan. The report concludes that these tools can help states achieve Clean Power Plan targets by leveraging limited public funds to attract significant private capital.

The document argues that a gap exists between the capital required for a sustainable transition and actual private sector investment due to market and policy failures. It identifies 'short-termism' as a systemic bias in the investment industry that leads to the undervaluation of long-term sustainability risks and opportunities. To counter this, the report proposes a policy framework based on three elements: enabling open and competitive markets through fiscal incentives and transparency, addressing internal industry disincentives such as short-term remuneration structures, and providing transitional support through de-risking mechanisms and the alignment of public pension funds. It highlights various international case studies, including the UK's Green Investment Bank and the EU's Financial Transactions Tax, to illustrate how regulatory intervention can shift the risk-reward balance toward low-carbon investments.

The document identifies five key realms for renewable energy policy: direct purchase mandates, improving the business case through financial incentives, removing non-price barriers, supporting research and development, and addressing grid intermittency. It recommends that Japan maintain its generous feed-in tariffs, expand demand response, and unbundle transmission from generation to increase competition. The report provides detailed international case studies from the US, Germany, and other nations to illustrate effective mechanisms such as Green Banks, loan guarantees, and carbon taxes.

The document analyzes four international policy mechanisms—US hydrogen tax credits, Norway's carbon capture and storage in the North Sea, the UK's Contracts for Difference for renewable electricity, and Australia's Green Bank—to derive strategic lessons for Canada's clean energy transition. It evaluates the strengths, limitations, and applicable lessons of each approach, focusing on reducing financial risk, leveraging comparative advantages, and ensuring cost-efficiency in public spending.

The fact sheet proposes a California Green Bank to bridge the financing gap for low-carbon technologies. It suggests using carbon emissions auction revenues to provide credit enhancements, loan guarantees, and project aggregation to help homeowners, small businesses, and innovators access affordable capital. The document highlights specific barriers in electric vehicle financing, energy efficiency upgrades, and grid-scale storage, while citing existing green bank models in New York, Connecticut, and Hawaii as precedents.

The fact sheet proposes that a California green bank could overcome financing barriers for underserved homeowners, small businesses, and public entities. It suggests the bank act as a credit enhancer, direct lender, or project aggregator to lower costs and risks. Additionally, it argues that a green bank could support the state's energy storage mandate and bridge the gap between technology demonstration and commercial scale-up for clean energy innovations.

The fact sheet outlines how a California green bank could accelerate decarbonization in the transportation sector, which contributes roughly 40 percent of the state's GHG emissions. It proposes interventions across four areas: passenger vehicles, zero-emission vehicle (ZEV) infrastructure, goods movement, and regional planning. Key proposed mechanisms include providing credit enhancements to expand private lending for low-carbon vehicles and heavy-duty trucks, coordinating risk and financing for EV infrastructure to overcome the 'chicken-and-egg' challenge of adoption versus availability, supporting at-scale innovative freight infrastructure, and financing projects to reduce vehicle miles traveled (VMT).

The Green Energy Money $aver (GEM$) program, launched in April 2019 by the Hawaii Green Infrastructure Authority (HGIA), provides on-bill financing for clean energy upgrades to approximately 95 percent of Hawaii's population via Hawaiian Electric Companies (HECO) customers. The program targets low-to-medium income (LMI) households—specifically those earning less than 140 percent of the area median income—to democratize access to solar PV and energy efficiency measures. By tying repayment to the utility meter rather than the individual, GEM$ allows for repayment terms up to 20 years and enables the transfer of obligations between tenants or owners, overcoming the rental split incentive. In its first nine months, the program funded $6.6 million in solar PV projects, with 78 percent benefiting LMI customers, resulting in 1.6 megawatts of installed capacity and 12,000 metric tons of projected avoided greenhouse gases. The program is funded by the Green Energy Market Securitization (GEMS) program and is the first of its kind operated by a green bank.

The document provides a set of policy recommendations aimed at the 117th Congress to improve coastal resilience in the United States. It emphasizes the integration of climate justice, the use of nature-based solutions, and the necessity of basing federal decision-making on future climate projections rather than historical data. The recommendations are supported by regional models, such as Louisiana's LA SAFE initiative and living shoreline projects in North Carolina, highlighting the need for community-centered planning and updated benefit-cost analysis tools.

The document highlights the cost-effectiveness of energy efficiency programs in the U.S., citing specific utility savings in Minnesota, New Mexico, and Arkansas, and economic projections for Massachusetts and Wisconsin. It advocates for scaling up federal appliance standards, updating building codes, and implementing financing mechanisms like PACE and green banks to increase adoption.