Cooling energy savings potential of reflective roofs for residential and commercial buildings in the United States

被引：143

作者：

Akbari, H ^{[1
]}

Konopacki, S ^{[1
]}

Pomerantz, M ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Heat Isl Grp, Berkeley, CA 94720 USA

来源：

ENERGY | 1999年 / 24卷 / 05期

关键词：

D O I：

10.1016/S0360-5442(98)00105-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We make quantitative estimates of the impact of roof reflectivity on cooling and heating energy use for buildings in the US. Prototypical buildings are simulated with reflective (light in color) and absorptive (dark in color) roofs. Differences of annual cooling and heating energy use and peak electricity demand between dark and light roofs yield the savings. The DOE-2 building energy simulation program is used for these calculations. Monetary savings are calculated using local utility rates. Savings are estimated for 11 US metropolitan statistical areas (MSAs) in a variety of climates. The total savings for all 11 MSAs are: annual electricity savings, 2.6 terawatt hours (TWh); net annual savings, $194 M; and peak electricity demand savings, 1.7 gigawatt (GW), Extrapolating the savings from the 11 MSAs to the entire United States, we estimate annual electricity savings of about 10 TWh and a net savings of about $750 M in annual energy payments. Peak electricity power reduction is estimated to be about 7 GW. Published by Elsevier Science Ltd.

引用

页码：391 / 407

页数：17

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