“…These optimal capacities estimated by EPRI represent ratios of energy storage to cooling power of between 3.3 Wh/W and 10 Wh/W, with unit capacities up to 150 kW and 1500 kW h, with the upper end of this spectrum serving schools, public facilities, and medium-sized commercial operations. Sizing of energy storage systems is crucial in order to ensure cost effectiveness, especially for the smallest residential systems [70,77,78]. This paper does not attempt to determine optimal sizing, and relies on this cited literature as a basis of our estimates.…”