Yet in both devices the heat output is limited to the amount of energy put in.
Gas, for the same amount of energy, costs about one-tenth of what oil does.
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Or doubling the amount of energy produced from renewable sources, such as expensive, roof-top solar panels.
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Uphill, however, we definitely expended a significantly higher amount of energy with our toothpick-like legs.
By contrast, CHP reduces the amount of energy wasted by an order of magnitude.
But China is making considerable efforts to boost the amount of energy produced by non-fossil fuels.
Producing one tonne of paper requires the same amount of energy as iron or steel.
The total amount of energy out there dwarfs anything we vaguely conceive of using.
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The paper industry consumes a tremendous amount of energy and raw materials: thin cardboard could cut both.
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Proponents point to the enormous energy density of the fuel (the amount of energy contained per unit).
So what would it take to replace the amount of energy in a cubic mile of oil?
The amount of energy released from a well-motivated employee can make the difference between transformation success and failure.
The amount of energy produced by the lower reactor is comparable to that produced by the upper reactor.
Her sensors measure precisely the amount of energy she uses as she speeds down to catch the fish.
"It feels great to provide a certain amount of energy to get us over the hump, " he said.
Boe is the amount of energy contained in a barrel of crude oil.
Tests suggested the device could produce 10 times the amount of energy needed.
Additionally, the increasing global economic output will require a greater amount of energy.
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The amount of energy that the big tech companies are expending to document and defend software patents makes no sense.
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So a very small amount of mass may be converted into a very large amount of energy and vice versa.
Together, the amount of energy tied to water consumption totals just under half of all the energy this country uses.
It comes back to wanting to do well here and just having that extra amount of energy in the matches.
Throttle them back even a little, and the amount of energy obtained for each barrel of fuel burned falls sharply.
What it says is, the country, state by state, will purchase a certain amount of energy from these alternative sources.
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Sometimes these plasma clouds are directed at Earth, and can deposit a large amount of energy into the planet's magnetosphere.
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The amount of EMI that a given piece of hardware can produce is proportional to the amount of energy it is consuming.
The space agency also increased the estimated amount of energy released in the meteor's explosion from about 300 to nearly 500 kilotons.
Most hydroelectric plants aim to generate the same amount of energy year-round.
The problem is that the amount of energy required may significantly exceed that which the hydrogen can subsequently be used to generate.
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Professor Roger Crofts, of the Crichton Carbon Centre in Dumfries, believes we have to focus on reducing the amount of energy we use.
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