As a great deal of energy is lost to sound, it may not even be conservative.

A great deal of time and energy had been spent upon this planet.

There's a great deal of time and energy being put into the team.

Combined, these have the potential to use a great deal of energy.

It may not seem like a great deal of energy, but you must consider the source.

After all, you've just spent a great deal of time and energy trying to preserve your own life.

Over the years he had spent a great deal of time and energy there.

I am aware you've put a great deal of energy into it.

We need to show a great deal of energy and commitment.

The problem is that field would take a great deal of energy, more than we know how to generate.