 It was commissioned in 1985 with 39 17.5 kW Jacobs wind turbines and 81 20 kW Jacobs wind turbines, yielding a total capacity of 2.3 MW.Starting in January 2006, the electric utility operating the wind farm, Hawaiian Electric Company (HELCO), operated a demonstration model of a grid-stabilizing unit, known as an Electronic Shock Absorber (ESA).This unit was designed to increase the stability of the island's grid, which has a relatively high penetration of wind energy, which is subject to rapid fluctuations.