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Home’s Energy Use

What does this mean for me?


A home energy assessment (sometimes referred to as an energy audit) will show what parts of your house use the most energy and suggest the best ways to cut energy costs. You can conduct a simple home energy assessment by doing it yourself (DIY) or, for a more detailed assessment, contact your local utility or an energy auditor. Our Energy Saver 101 infographic breaks down a home energy audit, explaining what energy auditors look for and the special tools they use to determine where a home is wasting energy. Also, you can learn more about home energy audits and find free tools and calculators on the Residential Services Network or the Building Performance Institute.

  • DIY Energy Assessment Tips

    • Check the insulation in your attic, exterior and basement walls, ceilings, floors, and crawl spaces. To determine the insulation R-values in different parts of your home, visit the Air Leaks and Insulation sections.
    • Check for air leaks around your walls, ceilings, windows, doors, lighting and plumbing fixtures, switches, and electrical outlets.
    • Check for open fireplace dampers.
    • Make sure your appliances and heating and cooling systems are properly maintained. Check your owner's manuals for the recommended maintenance.
    • Study your family's lighting needs and look for ways to use controls--like sensors, dimmers, or timers--to reduce lighting use.

Your Whole-House Plan

After you know where your home is losing energy, make a plan by asking yourself a few questions:

    • How much money do you spend on energy?
    • Where are your greatest energy losses?
    • How long will it take for an investment in energy efficiency to pay for itself in energy cost savings?
    • Do the energy-saving measures provide additional benefits that are important to you—for example, increased comfort from installing double-paned, efficient windows?
    • How long do you plan to own your current home?
    • Can you do the job yourself or do you need a contractor?
    • What is your budget?
    • How much time do you have for maintenance and repairs?

Planning smart purchases and home improvements will maximize your energy efficiency and save you the most money.

A more advanced alternative to performing a DIY energy assessment is to get advice from your state energy office, utility, or an independent energy auditor. A professional energy auditor uses special test equipment to find air leaks, areas lacking insulation, and malfunctioning equipment. The auditor analyzes how well your home’s energy systems work together, and compares the analysis to your utility bills. After gathering information about your home, the auditor will recommend cost-effective energy improvements that enhance comfort and safety. Some will also estimate how soon your investment in efficiency upgrades will pay off.

External Resources