Where the graph shows high energy usage, check that this is what you would expect.

Yes, the federal government has no business cutting down on energy usage.

Architectural design can also provide ways of reducing energy usage.

At the same time, Japan is promoting ways to reduce energy usage in total.

To hold down energy usage, more modern buildings use less fresh air than those built earlier.

But the technology exists, he said, to reduce energy usage by 70 percent.

Its energy usage is among the most conservative on the market.

A. We need to select materials that have lower energy usage to produce.

Bringing more sunlight into a home can reduce energy usage by 38 percent.

Be able to give detailed information about the residence's energy usage during the past year.