Multifamily residential structures account for more than half of the buildings in the United States and 21 percent of all U.S. carbon emissions, according to the Electric Power Research Institute (EPRI), which analyzes electric power consumption nationwide.
New Year’s Day brought wind-energy developers a belated holiday gift when Congress included in its fiscal-cliff budget deal a one-year extension of the production tax credit (PTC) that helps wind farms operate profitably.




