When buying an energy-efficient refrigerator, check energy ratings, main features and certifications to ensure savings and performance.

This calculation doesn't account for leaky ducts or poor piping, which may contribute to more energy use. A highly efficient system should have an AFUE rating between 85 and 98.5 percent.

This calculation doesn't account for leaky ducts or poor piping, which may contribute to more energy use. A highly efficient system should have an AFUE rating between 85 and 98.5 percent.

Today, the Energy Star rating can help you find laptops that are more energy efficient and offer better battery life. Energy Star ratings can be applied to Windows, Mac, and Chromebook laptops.

An Energy Star logo is displayed on a box for a freezer in Evendale, Ohio, on Jan. 21. The EPA has plan to cut Energy Star offices, putting energy efficiency labeling at risk and complicating ...