The recommendation of the installation of PV Solar Panels to reduce the electricity costs in Schofield Barracks Commissary, Hawaii

Abstract

The Schofield Barracks Commissary is a supermarket that sells groceries and household goods only to military members and their families; is located in Wahiawa, Hawaii. The store experiences high electricity bills due to the oil price fluctuation in Hawaii. The Schofield Barracks Commissary annual energy consumption average is approximately 304,650 kWh. The most common solar power provided in Hawaii are the community solar and the rooftop solar PV. The rooftop solar PV installation with Customer Self-Supply is recommended due to the significant power, the Schofield Barracks Commissary utilizes. The principal contractors selected were SunPower by Eco Solar, Pacific Energy Strategies, and SolarCity. The only contractor to give a verbal quote was SunPower by Eco Solar which they estimated $6M for the whole system (installation, battery storage, inverter, warranty). Based on the current energy consumption, if the system is purchased and the store does not receive incentives, the system will pay for itself in approx. 99 months (8.25 years). Key Terms ⎯ Community Solar, Customer Self-Supply, Customer Grid-Supply, Power Purchase Agreement.