Manood ng libreng bidyo Green Roofs B-Roll
Paglalarawan ng animasyon:
This free, downloadable B-roll footage from the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy is for use by news media and education organizations. This high-resolution video features clips of a green roof at facilities in Milwaukee, Wisconsin, including shots of the roof in the early growth stage and a solar photovoltaic (PV) array on top of a public library, a green roof on top of an urban ecology center, and solar PV inverters on a solar array.