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Science 5 July 1991:
Vol. 253. no. 5015, p. 17
DOI: 10.1126/science.253.5015.17-d
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Erratum

A 15 March letter from Amory B. Lovins (p. 1296) mentioned an office retrofit design that was calculated to save 85% of electricity. Recently discovered errors in a contractor's calculations mean that this retrofit's cost was understated by severalfold, although the corrected cost is about 27% of the utility's long-run avoided supply cost.

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