It Takes Energy to Make Energy (IMAGE)
Caption
It takes energy to make energy technologies, like the lithium-ion battery that helps power this Chevrolet Volt. Net energy analysis calculates how much energy a technology produces and consumes over time to assess its long-term sustainability.
Credit
Mark Shwartz/Stanford University
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Graphics, photographs and videos are provided subject to the following restrictions: Graphics, photographs and videos provided by the Precourt Institute for Energy at Stanford University are to be used - with appropriate credit - for editorial purposes only. Flopping, altering, editing or otherwise embellishing these images and audio clips in any way that changes the editorial content of these images and audio clips is prohibited. Permission is for one-time use only. Supplied image file must be deleted after use
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