By Kirk Johnson February 14, 2011
The backdrop to everything here is that office buildings are, to people like Mr. Blocher, the unpicked fruit of energy conservation. Commercial buildings use about 18 percent of the nation’s total energy each year, and many of those buildings, especially in years past, were designed with barely a thought to energy savings, let alone zero net use.
The answer at the research energy laboratory, a unit of the federal Department of Energy, is not gee-whiz science. There is no giant, expensive solar array that could mask a multitude of traditional design sins, but rather a rethinking of everything, down to the smallest elements, all aligned in a watt-by-watt march toward a new kind of building.