Hooray, Arrays! Image Courtesy of NREL The National Renewable Energy Laboratory in Colorado. Thanks to its arrays of photovoltaic cells with a total production capacity of 973 kW, the nation's largest net-zero energy-use building produced as much energy as it used on June 22. National Renewable Energy Laboratory researchers in the Dept. of Energy's 220,000-sq-ft Research Support Facility expect the Golden, Colo., building to achieve NZEU for the month of July, assuming the sun continues to shine. DOE's Jeffrey M. Baker, the facility's visionary and ENR's 2011 Award of Excellence winner, reports the year-old building is performing as designed (ENR
Despite a faltering international market, 2015 and the beginning of 2016 are proving to be strong years for U.S. contractors, with steady domestic growth and only moderate strain from workforce shortages.