And the winner is...

Find out which building cut its energy use more than
3,000 others to win EPA's National Building Competition.

See the Results

How energy efficient is your home?

Find out with the Home Energy Yardstick.

Get Started

Presenting the 2013 Partner of the Year Award Winners

See the Winners

Who dared imagine?

Our newest video celebrates 20 years of success with our innovative ENERGY STAR partners.

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Painting the town blue

Which U.S. cities have the most ENERGY STAR certified buildings?

See the Top Cities
EPA Logo

ENERGY STAR is a U.S. Environmental Protection Agency voluntary program that helps businesses and individuals save money and protect our climate through superior energy efficiency. Learn more about ENERGY STAR.

With help from ENERGY STAR, by 2012, Americans had cumulatively prevented more than 1.8 billion metric tons of GHG emissions.

See 2012 Achievements.

A comprehensive review of ENERGY STAR and other EPA climate protection partnerships.

See 2011 Annual Report.

Basic information on climate change, greenhouse gas emissions, and climate change science.

See Climate Change.

Energy Efficiency

Tools & Initiatives

Portfolio Manager

Track and assess energy and water consumption across your entire portfolio of buildings.

Save Energy @Home

Take a room-by-room tour and learn what you can do to save in your own home.

ENERGY STAR Most Efficient 2013

These exceptional products represent the leading edge in energy efficient products this year.

Join our Movement

See who's helping us save energy and find an ENERGY STAR event in your area.

Set Your Programmable Thermostat

Learn how to set your thermostat for savings.

Low Carbon IT Campaign

Tips and tools to reduce energy consumed by IT equipment in your organization.

Save at Home with ENERGY STAR

A home improvement expert takes you through a real home to learn energy-saving tips.

ENERGY STAR Social Media

How Do You Save?

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Partner Resources

Featured Partner <>

Logo for Des Moines Public School District Partner of the Year Award
DMPS received recognition for its commitment to demonstrating environmental and financial stewardship through comprehensive energy management. Learn More
Logo for Dominion East Ohio Partner of the Year Award
Dominion East Ohio received recognition for its successful implementation of the HPwES program in a new market. Learn More