The wind farm, located in southeastern Maui, will utilize eight Siemens wind turbines to produce enough renewable power for around 10,000 average Maui homes.
Initial construction activities are underway with full mobilization projected to commence by the end of the second quarter 2012, and commercial operation will begin by year-end 2012.
RMT WindConnect secured the balance of plant contract.
Sempra US Gas & Power will continue leading the development of Auwahi Wind and operate the project once construction is complete.
Under a long-term power purchase agreement, the Maui Electric Company will buy the entire power output from the wind farm.
In a first for the BP and Sempra US Gas & Power strategic partnership, the wind facility will utilize a battery storage unit capable of storing in excess of 4MWh of renewable power.