Kids have so much excess energy; they need to run.

Why not direct that excess energy toward learning or training at some point during the school day?

But sometimes the work produced no excess energy, he said.

The technology gives him a way to direct his excess energy.

Part of this excess energy was returned to the host.

By 1999 the company was claiming to have produced excess energy for over a year.

It's really just like an athlete who works off her excess energy during practice every afternoon.

He taught his soldiers basketball to control their excess energy.

Excess energy is sold to other industrial facilities in the area.

They should have daily walks to burn off excess energy.