Sempra U.S. Gas & Power, BP Wind Energy and community leaders dedicated the new Auwahi wind facility on Ulupalakua Ranch in Hawaii. The 21-MW Auwahi Wind facility is BP and Sempra’s first alternative energy venture in Hawaii. The project features a 4.4-MWh grid battery system, which at its peak, can sustain 11 MW of capacity for approximately 25 minutes. The battery system helps regulate and sustain power to Maui Electric Co.’s grid during light wind conditions.