"More buildings in Washington are attaining retrofits even before these regulations take effect because operators are realizing the benefits of energy efficiency. This year, I visited the headquarters of the American Geophysical Union, one of the city’s remarkable sites for transformative energy management. It is the first to attain the net-zero standard as a retrofit building in the city." _______________________________________ GreenBiz https://www.greenbiz.com/article/why-district-columbia-leader-energy-efficiency