Energy.gov

Learn how to estimate what it costs to operate your appliances and how much energy they consume.

The cost effectiveness of when to turn off lights depends on the type of lights and the price of electricity.

Planning for a home renewable energy system is a process that includes analyzing your existing electricity use, looking at local codes and requirements, deciding if you want to operate your system on or off of the electric grid, and understanding technology options you have for your site.

Get the answers to frequently asked questions about the new lighting efficiency standards.

Light your home for less money while using the same amount of light.

How U.S. retailers who sell lighting products can help their customers better understand energy-efficient lighting choices.

As of 2012, common lightbulbs sold in the United States will typically use 25%-80% less energy.

When you're shopping for lightbulbs, compare lumens and use the Lighting Facts label to be sure you're getting the amount of light, or level of brightness, you want.

Although fluorescent lightbulbs are generally energy efficient, you can replace them with new, even more efficient bulbs that use better electrodes and coatings than older ones.

Outdoor solar lights use solar cells, which convert sunlight into electricity, and are easy to install and virtually maintenance free.

Energy-efficient indoor and outdoor lighting design focuses on ways to improve both the quality and efficiency of lighting.

Compare the costs and savings when using energy-efficient lightbulbs.