Resource Library

RMI's analysis finds that households in the United States using delivered fuels for space and water heating could save an average of $970 per year by upgrading to heat pumps.

ACEEE and the National Energy Codes Collaborative examine conflicts and alignments between building codes and Building Performance Standards in Atlanta, St. Louis, and Seattle. The authors derive lessons for other cities to ensure policies to decarbonize new and existing buildings are measuring against similar performance metrics and minimizing unnecessary bureaucratic hurdles.

Transformative Strategies and Common Spark Consulting examine the policy landscape, ownership models, equity and environmental justice perspectives, and energy democracy perspectives on thermal energy networks.

ACEEE and the National Energy Codes Collaborative identify barriers to implementation of building energy codes and suggest strategies for training the workforce from project initiation to closure to overcome these barriers.

ACEEE’s study analyzed costs and emissions for decarbonizing buildings through electrification and alternative fuels for combustion, like biomethane from landfills or livestock manure or synthetic gases made from hydrogen and other chemical compounds.

This report sheds new light on a powerful and cross-cutting solution: manufacturing building products from upcycled biomass that’s already abundant across the United States.

Our 2025 State Policy Watchlist offers a concise breakdown of what to watch and why it matters for public affairs professionals navigating these evolving challenges.

The signatory states are working through NESCAUM's Building Electrification Task Force to develop a Multistate Action Plan with policy and program recommendations to advance affordable, zero-emission heating and clean residential buildings.

From securing federal appliance efficiency standards that will save households nearly $1 trillion to helping localities build transportation systems that meet community needs, ACEEE initiatives are helping tackle today’s energy challenges

This report presents best practices for program administrators, utility regulators, policymakers, and advocates to make energy efficiency programs more simple, market-friendly, durable, and equitable.

This case study from TECH Clean California lays out how the Heather Village homeowner's association leveraged grants and utility financing to switch from gas boilers to heat pumps to heat its residents' water.

This resource from the Building Decarbonization Coalition examines enabling legislation for thermal energy networks across eight states and derives lessons for other states considering these policies.

AESC will measure whether the HPWHs' cool exhaust air can lower existing air conditioning costs and improve resident comfort and will quantify the energy, cost, and GHG impacts of the retrofits.

The top finishers in the 2025 scorecard are California, Massachusetts, and New York, with Maryland and Vermont tied for fourth place. Colorado, Louisiana, and New Jersey are among the most improved states since the last scorecard.

When it comes to delivering savings to Americans while bolstering domestic jobs, the federal Energy Efficient Home Improvement Tax Credit (also known as the 25C tax credit) punches well above its weight.

This case study illustrates how BRIDGE Housing and its partner Carbon Zero Buildings completed cost-effective in-unit and common space electrification upgrades and demonstrates how changes to utility allowances resulted in financial savings for both BRIDGE Housing and residents.

Welcome to NEEP’s 2024 Regional Roundup, which provides a snapshot of state policies and progress toward greater energy efficiency in each of the NEEP region’s 12 states and Washington, D.C.

A new report by InfluenceMap shows how the oil & gas and utilities industries are leveraging a common fossil fuel playbook to prolong the use of fossil gas in buildings globally

Resilience hubs—enhanced community centers or spaces that support the community daily, as well as before, during, and after emergencies—are one solution.

Two federal tax credits are helping homeowners around the country save money on energy bills. These fact sheets provide new analysis on the benefits these credits deliver.

Charge at Home provides free electric vehicle charging guidance, tools and support to multifamily decision makers and residents.

Delaware’s 2024 – 2028 State Energy Plan outlines strategies to fulfill state energy goals, modernize an aging energy grid and pave the way for a resilient and equitable energy future

This report serves as a baseline by which to measure future energy efficiency job growth enabled by critical large-scale investments such as the Infrastructure Investment and Jobs Act (IIJA) and Inflation Reduction Act (IRA).