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The award-winning Phase Change Matters blog tracks the latest news and research on phase change materials and thermal energy storage. E-mail tips and comments to Ben Welter, communications director at Entropy Solutions. Follow the blog on Twitter at @PureTemp. Subscribe to the monthly PCM newsletter. Or join the discussion on LinkedIn.

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Researchers outline ambitious plan to run U.S. economy entirely on renewable energy

Ben Welter - Wednesday, June 10, 2015

Would it be possible to run the U.S. economy entirely on renewable energy by 2050? A team of researchers led by Dr. Mark Z. Jacobson of Stanford says yes, and lays out an ambitious and detailed state-by-state plan. Vox.com's David Roberts explains:

"The core of the plan is to electrify everything, including sectors that currently run partially or entirely on liquid fossil fuels. That means shifting transportation, heating/cooling, and industry to run on electric power.

"Electrifying everything produces an enormous drop in projected demand, since the energy-to-work conversion of electric motors is much more efficient than combustion motors, which lose a ton of energy to heat. So the amount of energy necessary to meet projected demand drops by a third just from the conversion."

The study, published in Energy & Environmental Science, also sees a role for thermal energy storage, including ice, water and phase change materials, and time-of-use electricity rates that encourage off-peak energy consumption.

http://www.vox.com/2015/6/9/8748081/us-100-percent-renewable-energy

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