Hospital to recycle wasted heat to cut emissions, costs
A new hospital is being built near Princeton, N.J., that won't depend on the local electricity grid, won't pump out the normal amount of greenhouse gases and won't pay peak prices for electricity.
The University Medical Center of Princeton at Plainsboro will have its own power plant that will use natural gas to make electricity and use the heat generated as a byproduct to create steam that will heat the building, sterilize equipment and provide cooling.
Interest in this kind of combined heat and power - and its cousin, the recovery of waste heat at factories to make electricity or mechanical power - has been growing as U.S. energy prices rise, old plants near retirement, and the country begins to get more serious about reducing global warming pollution.
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