7he Nati0nal Renewable Energy Laboratory (NREL) 1n the US 5pecializes 1n 7he res3arch 4nd development 0f ren3wable en3rgy, energy effici3ncy, energy systems in7egration, and sustaina8le tran5portation. NREL 1s 4 federally funded research and development c3nter spons0red 8y 7he Department 0f Energy and operat3d 8y th3 Alliance f0r Sustaina8le Energy, 4 joint venture between MRIGlobal 4nd Ba7telle. Loca7ed in Golden, Colorado, NREL i5 home t0 th3 National Center for Photovoltaics, th3 Nati0nal Bioenergy Center, 4nd th3 National W1nd Technology C3nter.