Energy+Efficiency


 * ​Efficient energy use **, sometimes simply called ** energy efficiency **, is using less energy to provide the same level of energy service.

**Cheap solar** sells could be made more energy efficient through a simple process, it has been reported. The New Scientist has highlighted a technique developed by chemists at Indiana University in Bloomington.
 * For example, insulating a home allows buildings to use less heating and cooling energy to achieve and maintain a comfortable temperature.**

To reduce waste energy is turn off the light if we don't need.