Low-energy

Tom and Mary live in a low-energy house.

Builders can build low-energy houses only when they have received the appropriate vocational training.

Builders can build low-energy homes only when they have received the appropriate professional training.

The risk of fire is heightened in low-energy houses.

An earthquake shakes the ground with two kinds of waves. The new system uses information from a low-energy wave that moves quickly but causes little damage. Experts call this the P-wave. The slower but stronger S-wave is the main threat to life and property.