New EPA Agreement with Canada Will Help Monitor Energy Efficiency and Emissions Across Borders

Sustainability and Green Building
Published

The U.S. Environmental Protection Agency’s (EPA) ENERGY STAR® Portfolio Manager® is a free online tool currently used by more than 275,000 buildings, or one-quarter of U.S. commercial floorspace, to track energy, water, and waste emissions for multifamily, commercial, and institutional buildings.

It’s also used by Canada — where more than 26,000 Canadian buildings (or around one-third of its commercial space) have used the Portfolio Manager to measure and track energy usage — and a new agreement should help the two countries further collaborate on increasing energy efficiency in buildings and reducing climate pollution.

The EPA and Canada’s equivalent, Natural Resources Canada (NRCan), recently recommitted to a 10-year research partnership to enhance features within the tool.

“Today’s agreement with Natural Resources Canada will continue a 10-year research partnership between our agencies, empowering American and Canadian building owners to reduce energy use, save on costs, and cut climate pollution,” said EPA Administrator Michael S. Regan in the agency’s press release.

Portfolio Manager includes dozens of energy performance metrics, features to track energy performance relative to similar buildings, and additional content specific to Canadian commercial building stock. The reinvigorated partnership will not only enhance the Portfolio Manager to include a greenhouse gas emission comparison feature, but it will also help building owners and companies that build in both the United States and Canada measure and track energy performance consistently.

An EPA study of 35,000 buildings shows that buildings that benchmark their energy use on a regular basis reduce their energy consumption by 2.4% per year. Tools such as the Portfolio Manager have the potential to reduce greenhouse gas emission and help building owners cut costs.

To stay current on the high-performance residential building sector, with tips on water efficiency, energy efficiency, indoor air quality, and other building science strategies, follow NAHB’s Sustainability and Green Building efforts on Twitter.

Subscribe to NAHBNow

Log in or create account to subscribe to notifications of new posts.

Log in to subscribe

Latest from NAHBNow

Safety Toolkits

Jan 27, 2026

NAHB Updates 3 Key Safety Programs

Having a written safety plan in place is essential to protecting workers and others on a home building jobsite. NAHB recently updated three key safety and health programs specifically designed for home builders, remodelers and siding contractors.

Advocacy

Jan 26, 2026

Key Changes in the One Big Beautiful Bill to Lower Your Taxes

The 2026 tax season officially opens Monday, Jan. 26, as the IRS begins to accept and process 2025 tax returns. These important housing and business provisions in the One Big Beautiful Bill Act will apply to the 2025 tax year.

View all

Latest Economic News

Economics

Jan 27, 2026

State-Level Employment Situation: December 2025

With few exceptions, year-over-year nonfarm employment levels were relatively stable across states at the end of 2025, ranging from a decline of 4.2 percent to a gain of 1.8 percent. Construction employment, however, showed considerably greater dispersion, with declines of up to 9.3 percent in some states and gains approaching 9.0 percent in others.

Economics

Jan 26, 2026

Pool Permitting Falls Lower in 2025

After a rapid expansion of residential swimming pool and spa construction following the pandemic, permit levels in the latest monthly index for December fell to their lowest level since 2020.

Economics

Jan 23, 2026

2025 Third Quarter State-Level GDP Data

In the third quarter of 2025, the Bureau of Economic Analysis (BEA) reported that real gross domestic product (GDP) expanded nationally, with growth recorded across all states and the District of Columbia.