Your resource to: Find ENERGY STAR products, Learn new ways to save energy,  Find tools to help you save  Get rebates and offers

Find ENERGY STAR products

Learn new ways to save energy

Find tools to help you save

Get rebates and offers

Purchase ENERGY STAR certified decorative light strings

Whether decorating for the holidays or creating a warm atmosphere in your home, choose ENERGY STAR certified decorative light strings. Light strings that have earned the ENERGY STAR use up to 75 percent less energy than traditional models. If all decorative light strings sold in the U.S. were ENERGY STAR certified, energy cost savings would grow to about $850 million each year and 9.9 billion lbs of annual greenhouse gas emissions would be prevented.

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Ask the Expert

Man running tests on a server in a data center.

How often is your computer server in a low or zero energy utilization state? The answer may surprise you. On average, utilization is only about 10%-15%. Business patterns vary throughout the day, week, month, and/or year, but long periods of inactivity are typically unavoidable.  

A row of enclosed servers in a data center.

It’s obvious that computer servers use a lot of energy within the data center.

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.