Δες δωρεάν βίντεο Hydroelectric Dams – Interiors B-Roll

This free, downloadable B-roll footage from the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) is for use by news media and education organizations. This high-resolution video features hydroelectric dam interiors in Washington and Massachusetts, including clips of inspection and maintenance at Rocky Beach Hydroelectric Power Plant, Lake Chelan Powerhouse, Northfield Mountain.