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Find ENERGY STAR products

Learn new ways to save energy

Find tools to help you save

Get rebates and offers

Seal leaks in your home's attic, basement, or crawlspace

Vents, ducts, or electrical wires often have holes or gaps around them which can allow the air in your home to escape, increasing your energy bill and causing more drafts in your house. Seal small gaps with caulk and holes up to 3 inches in diameter with spray foam. Homeowners typically save up to $200 a year in heating and cooling costs by air sealing their homes and adding insulation.

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Ask the Expert

Happy couple enjoying the window AC in their living room.

Choosing the right window air conditioning unit for your room will help keep you cool and save energy when the weather heats up. Here are three important factors to consider when buying a new AC:

Happy couple filing their taxes.


Not only has the 2020 deadline to file your federal income taxes been extended to July 15, the federal tax credits for energy efficiency were also extended as part of the Bipartisan Budget Act for 2020.   

Tools and Resources

  • ENERGY STAR LED Bulb Finder

    Looking to replace a light bulb? Here's how in three easy steps.

  • Best Value Finder

    The Value of ENERGY STAR at the Best Price

  • ENERGY STAR Most Efficient

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

  • image of distribution transformers

    Learn how energy-efficient distribution transformers can yield large energy and money savings.

  • My Energy Star

    Discover ways to save in your home and track progress in your "My ENERGY STAR" savings dashboard.

  • a couple looking at a computer and paperwork

    The ENERGY STAR Home Advisor provides customized and prioritized energy efficiency advice based on your home's profile.