Most home appliances have become more efficient over the past 30 years, but those gains have been offset by the influx of personal computers, televisions and related devices, according to data released today by the U.S. Energy Information Administration (EIA).

In the latest update to its Residential Energy Consumption Survey, which is has updated periodically since 1979, EIA found that:

• 58 percent of U.S. homes had energy-efficient, multi-pane windows, up from 36 percent in the 1993 survey.

If you’re looking for simple ways to save energy at home, your refrigerator is a good place to start. That’s because your fridge is one of your home’s single biggest electricity users (other members of this club include your air conditioner and your water heater.) But with a few simple steps you can make your current refrigerator more efficient — and when it’s time to buy a new fridge, these resources can help you make a smart choice.

Read this article.