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This case study by RMI examines the Mississippi Clean Hydrogen Hub (MCHH), developed in collaboration with Hy Stor Energy, to demonstrate how large-scale geological storage of green hydrogen can enhance energy security and resiliency for the United States and its international partners. The document details how the MCHH can provide a secure, zero-carbon energy supply to critical industrial sectors, reduce dependence on volatile fossil fuel markets and imported commodities, and support strategic trade partners in Europe, Latin America, and the Caribbean.

This policy brief by RMI argues that the United States does not need further studies to justify expanding interregional electricity transmission, as the need is already well-documented. The author contends that current grid bottlenecks are delaying clean energy projects and increasing vulnerability to extreme weather, urging Congress to implement minimum transfer requirements, mandate proactive planning, and streamline permitting processes.

This report by RMI analyzes how updated energy efficiency standards and Inflation Reduction Act (IRA) tax incentives can reduce energy costs for low-income Americans by encouraging the construction of high-efficiency, all-electric homes.

This guide by RMI outlines how US states can maximize the impact of $8.5 billion in home energy rebates provided by the Inflation Reduction Act (IRA). It details two primary programs—the Home Efficiency Rebates and the Home Electrification and Appliance Rebates—and proposes three strategic actions for states: prioritizing low-income and disadvantaged communities, stacking multiple incentives to reduce upfront costs, and developing complementary state-level policies to scale building retrofits and workforce training.

This RMI fact sheet argues that scaling green hydrogen for a 1.5°C-aligned future will have a minimal impact on global freshwater supplies, as its water consumption is comparable to or lower than fossil-fuel-based hydrogen and other energy production methods. While global impact is low, the document emphasizes the need for intentional project siting and the use of alternative water sources to avoid straining local water-stressed regions.

This guide by RMI provides strategic and technical recommendations for entities applying for the EPA's Solar for All program, a $7 billion initiative under the Greenhouse Gas Reduction Fund (GGRF) designed to expand low-income solar access nationwide.

This report by RMI outlines financial and policy solutions to decarbonize long-term coal power purchase agreements (PPAs), using a representative Indonesian PPA as a case study to demonstrate how innovative financial mechanisms can reduce emissions while maintaining costs for taxpayers and earnings for investors.

RMI provides recommendations for the US Department of the Treasury regarding the 45V production tax credit (PTC) for grid-connected green hydrogen, arguing for a balance between industry acceleration and strict emissions standards to ensure climate goals are met.

This guide provides an overview of state and federal regulations and laws governing electric vehicle (EV) adoption in the United States, specifically detailing compliance requirements for manufacturers, fleet operators, and transportation companies.

This guide by RMI proposes a "multi-level engagement" model for banks to maximize climate impact by coordinating efforts across client, sector, and policy levels. Based on an 'Alignment Forum' workshop involving 44 sustainable finance bankers from 17 global banks, the document argues that siloed engagement is often ineffective and that sustainability teams must act as the central coordinating body to align internal stakeholders and drive real-economy decarbonization.

This guide explains how to use RMI's Corporate Commitments and Emissions Dashboard, a tool designed to model corporate emissions pathways to 2050 based on voluntary climate commitments and economic indicators.

This guide by RMI explores how Real Estate Investment Trusts (REITs) can leverage their extensive rooftop and parking assets to drive solar development, reducing greenhouse gas emissions while increasing shareholder value. It identifies significant untapped capacity, outlines the financial and regulatory barriers to adoption, and proposes community solar as a viable solution to overcome these challenges.

This policy brief by RMI discusses the Environmental Protection Agency's (EPA) $27 billion Greenhouse Gas Reduction Fund (GGRF) and provides recommendations to ensure it effectively delivers an equitable energy transition to underserved communities and small businesses.

This report examines how Energy Service Agreements (ESAs) and federal incentives, specifically from the 2022 Inflation Reduction Act, can be used to scale deep energy efficiency and electrification retrofits for affordable multifamily housing (AMFH) in California.

This RMI briefing outlines how US Public Utility Commissions (PUCs) can use grid-enhancing technologies (GETs) to resolve transmission bottlenecks that are delaying the interconnection of renewable energy. It identifies regulatory 'gold plating' and 'capex bias' as primary barriers and proposes four strategies—knowledge building, planning mandates, financial incentive reforms, and FERC engagement—to accelerate the deployment of these cost-effective solutions.

The Corporate Commitments and Emissions Explorer Technical Documentation details the methodology for modeling corporate emission pathways. It uses 2022 as a start year and applies revenue growth rates and climate commitment multipliers to estimate future emissions. The tool features five preset outlooks and categorizes companies by ambition level, focusing on Scope 1 and 2 emissions while excluding Scope 3 due to data quality and double-counting risks.

This report by RMI examines the financial burden of high fuel costs on families in the United States and critiques the current utility practice of using fuel adjustment clauses to pass 100 percent of fuel costs to customers. The document proposes six regulatory strategies to incentivize utilities to manage fuel costs more efficiently and reduce the risk of price volatility for consumers.

This case study describes a joint pilot project between RMI, SINAI Technologies, and ArcelorMittal to implement RMI's Steel Emissions Reporting Guidance using a dedicated software platform to improve carbon accounting and transparency in the steel sector.

The Advanced Clean Fleets (ACF) regulation, passed by California legislators on April 28th, aims to phase out medium- and heavy-duty (MDHD) internal combustion engine trucks to transition the state's transport system to zero-emissions vehicles (ZEVs) by 2045. The regulation establishes specific compliance pathways for high-priority fleets, drayage truck fleets, and public fleets, while providing extensions for infrastructure, electrical, and delivery delays.

This guide explains the Clean Miles Standard (CMS), a California Air Resources Board (CARB) regulation designed to reduce greenhouse gas emissions from ridehailing and autonomous vehicle providers by mandating a transition to zero-emissions vehicles by 2030.