RHA Energy Partners conducted energy audits at three State Hospitals (part of the Hawaii Health System Corporation) located on Oahu to identify and evaluate the technical and financial viability of various potential energy conservation measures, which included on-site solar PV and battery energy storage opportunities. RHA Energy Partners evaluation identified viability of on-site solar PV opportunities to increase each hospital’s power reliability and resiliency by adding to on-site power generation capacity and potentially extended existing diesel-fuel emergency generators fuel storage supply run-times by addition of solar PV generation. Kahuku Hospital has potential for additional battery energy storage due to potential for excess energy generation from solar PV systems.