Gay & Robinson operates a hydraulic turbine plant located in Hanapepe, Hawaii, with an operating capacity of 7.7 MW. The facility utilizes water as its fuel source and is unregulated, allowing for flexible operational practices. The primary power purchaser for the plant is the Kauai Island Utility Cooperative. As the majority owner and holding company, Gay & Robinson plays a significant role in the local energy landscape within the NERC Region of Hawaii.