Energy-efficient

This behavior is energy-efficient in an environment where calories can be hard to come by.

This washing machine is very energy-efficient.

LED streetlights are more energy-efficient, but they dramatically increase light pollution.

Tom's home is energy-efficient.

Algeria needs to build energy-efficient buildings.

It's an energy-efficient appliance.

Let's be energy-efficient and turn off the lights when we're not using them.

The air conditioner is energy-efficient.

A range of simple solutions include using energy-efficient homes, household appliances and lighting, and driving electric cars. Encouraging homeowners and office workers to switch off their televisions and computers at the end of the day is also seen as an effective way to save electricity.