Norristown, Pennsylvania, U.S.A.

First Place-ASHRAE Award of Engineering Excellence.

Designers originally estimated that the thermal-storage system installed in the Whitehall Elementary School would reduce electrical energy costs by approximately 15 percent to 20 percent over a conventional system. However, results have far exceeded expectations. Paul V. Fly school, a similar-size school, has energy costs 35 percent higher than Whitehall even though it is used only 2/3 of the time. First cost for the partial-storage system was $192,000 less than conventional installation, resulting in immediate savings.

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