There's a high-efficiency engine in it that has higher petrol consumption.

One example is high-efficiency power plants that emit less carbon.

A high-efficiency $150,000 water cooler for the air-conditioning system will go in before next summer.

Keep the factory that makes missiles, but figure out how to make high-efficiency turbines instead.

And while installing high-efficiency windows can save money, that may not provide the biggest savings.

All of the high school athletic fields also benefited from new, high-efficiency lighting.

Of these sockets, an estimated one billion could easily use the high-efficiency bulbs.

My world is just not a high-speed, high-efficiency place.

If the lifecycle cost is less on the high-efficiency unit, purchase it.

The important thing is that the will is there to support high-efficiency technology regardless of size.

It was followed by other flights of low-power, high-efficiency aircraft.

In fact, most modern high-efficiency heating appliances do not require a chimney.

This man finished the construction of a high-efficiency oil well in the Balakhany settlement.

Experts caution that this may be a special problem for homeowners who have replaced old systems with new, high-efficiency models.

If you have a brand new high-efficiency unit, your consumption could be more like 400 kWh/year.

The buildings have also been designed to limit the amount of water consumed, with high-efficiency plumbing.

Nevertheless, progress is being made; since the late 1990s there has been a major buildup of new high-efficiency generators.

At the top of the wall, low-speed, high-efficiency fans circulate the air throughout the house.

These versatile fans offer high-efficiency operation at many different points of operation.

"The new, high-efficiency sprinkler heads can dump an enormous amounts of water."

Using high-efficiency filters on your vacuum helps pick up more dust mites.

Just ask your grandmother which costs more, hanging laundry on a line or a using high-efficiency electric dryer.

Aptera motors is a small manufacturer of high-efficiency highway vehicles.

"So we had to build high-efficiency air filtration systems.

This combination is possible because of a high-efficiency petrol engine, low weight, and low drag.