Storage, part of most natural & man-made systems, is also useful for electric grids & microgrids, but is a technical and economic challenge. Storage becomes more important with increased use of intermittent renewable power. The pros & cons of various storage technologies are compared, showing that large-scale Thermal Energy Storage (TES) is attractive for multi-hour storage. An actual District Energy example illustrates the economics of batteries versus Chilled Water (CHW) TES. CHW TES is often the low capital cost option for multi-hour storage, but also for added CHW capacity. TES also enhances the economics of complementary technologies such as CHP and renewable cooling.
John Andrepont, The Cool Solutions Company
24 Lyman Street, Suite 230
Westborough, MA 01581
Phone + (508) 366-9339
Fax + (508) 366-0019
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