U.S. Energy Efficiency

What 5 million data points say about energy efficiency potential

Energy efficiency is the country's cheapest power source and the secret to unlocking its potential isn't a new fracking fluid or a new nuclear reactor design. The key is data. A new era of data transparency and quantification is turning energy efficiency from a guesstimate into a reliable and deployable resource that our country can count on. This page is a small peek into that brave new world that brings together data on housing structures, heating and cooling, appliances, and energy habits from more than 120,000 U.S. households. The data illuminates clear opportunities for saving energy and money.

National Highlights

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North and South Dakotans report using more conventional light bulbs than any other state, at 1.5 times the national average. Vermonters, by contrast, report using efficient bulbs at the highest rate, 1.8 times the national average.

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States with the most stand-alone freezers in addition to a primary fridge and freezer? Alaska, Montana, North Dakota, South Dakota, and Wyoming, all in excess of 2x the national average.

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Heating Set Point

West Virginians like it warmer in the winter. They set their thermostats higher than most other states. Rhode Islanders keep their homes the coolest in winter.

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Cooling Set Point

Alabamans set their thermostats cooler than any other state in the summer. Others who keep their AC chillier than average include residents of Arkansas, Indiana, Kentucky, Louisiana, Mississippi, New York, Tennessee, and West Virginia.

State by State

Potential savings per household
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More likely than the U.S. average to have:
  • Homes without air conditioning (1.6x)
  • A gas hot water heater (1.7x)
  • High efficiency gas heating systems (1.6x)
  • Extra-thick attic insulation (2.2x)
  • Three-story homes (2x)
  • Heating set point kept at 64° or less (1.4x)
Energy Efficiency Opportunities by Measure for Colorado


  • 9% have electric-heated homes vs. 35% nationally
  • 90% heat their homes with gas compared to 55% nationally
  • 1% heat their homes with oil compared to 10% nationally

Water Heater

  • 86% have a gas hot water heater vs. 52% nationally
  • Of those, 81% have a standard water heater vs. 39% average

Home Size

  • 21% of homes are three stories or more vs. 9% nationally


  • 7% have extra-thick attic insulation vs. 3% nationally


  • 68% of homes have basements vs. 36% nationally


  • 18% have no AC vs. 11% nationally

DSM Solutions for Utility Programs

EnergySavvy's software brings breakthrough transparency and control to DSM departments. Utilities and states across the country use our Optix software platform to drive portfolio performance, increase customer satisfaction and minimize risk. We invite you to contact us and learn why industry leaders choose EnergySavvy.

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