Energy 'lab' lets the (refracted) sunshine in
By Kirk Johnson | New York Times | Updated: 2011-02-27 07:57
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A federal building in Colorado is a template for affordable, energy-efficient construction. West-facing windows tint blue in the afternoon sun. Patrick Andrade for The New York Times |
GOLDEN, Colorado - As the midwinter sun settled over the Rocky Mountain foothills on a recent Friday, the largest net-zero energy office building in the United States was hard at work.
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