They say it will save more than four million dollars a year in energy costs.

VOA: special.2009.05.22

With the recent spike in food prices around the world that you've all heard of because of rising energy costs.

大家都听说了,由于能源价格上升,导致了全球食品价格的飞涨

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And the truth is that yes, this costs energy, we're going up to a higher energy state.

事实上，它需要消耗能量，我们到了一个更高的能量状态。

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He says these "virtual desktops" lower costs,reduce energy use and lessen the need for technical support.

VOA: special.2010.04.12

But Jim Fenton, director of the Florida Solar Energy Center at the University of Central Florida, says costs are falling quickly.

VOA: standard.2009.10.27

Solar developer Stanley Florek of Seattle says the fixed,premium purchase price gives alternative energy suppliers assurance they'll recover the high costs they pay upfront.

VOA: standard.2010.03.23

The president also emphasized that the White House will continue to hold the energy company BP responsible for paying the costs of dealing with the disaster.

VOA: standard.2010.06.15

Utilities are allowed pass on their higher energy acquisition costs to consumers.

VOA: standard.2010.03.23

"If we refuse to take into account the full costs of our fossil fuel addiction - if we don't factor in the environmental costs and the national security costs and the true economic costs - we will have missed our best chance to seize a clean energy future."

VOA: standard.2010.06.14