Design of Solar Panel as Electric Energy Source for Water Pumps at Stella Maris Hospital Makassar

Electrical energy is a crucial requirement to support 24-hour service activities in a hospital. Consequently, the cost of using electrical power is very high. Therefore, it is necessary to utilize electrical energy effectively without compromising the quality of service. One way to reduce electricity consumption from the national grid is by using solar power plants. The electrical load in the hospital that can be shifted to the PLTS power source is the water pump. The water pump operates 24-hour a day to meet the water needs for all service activities in the hospital. This study aims to analyze the design of an off-grid power plant for the water pump at Stella Maris Hospital Makassar. The design and analysis is conducted using quantitative methods. Based on the analysis and design results, it was found that to power a 1,469-watt water pump; a solar panel system with a capacity of 2,400 Watt-peak is needed, consisting of 6 units of 400 Watt-peak solar panels.