Artificial lighting consumes almost 15% of a household's electricity use. Use of new lighting technologies can reduce lighting energy use in homes by 50–75%.

 

You can reduce lighting energy use by selecting lighting and sources that use energy more efficiently, and by installing lighting controls.

Here you'll find the following information:

 

Lighting principles and terms
Lighting performance and design factors to consider for energy efficiency.

Lighting design
Basic indoor and outdoor lighting design principles and methods for energy efficiency.

Types of Lighting
Lamp types to consider and compare for energy efficiency.

Lighting controls
Controls to automatically turn lighting on and off as needed.

Lamp and ballast replacement
Replacing lamps and/or ballasts in light fixtures to improve energy efficiency.

Lighting maintenance
Basic maintenance to help keep your lights operating at their optimum energy efficiency.

When to turn off your lights
Energy-saving advice for when to turn off incandescent and fluorescent lights.