*2.2. The Solar Power Plant Types*

The schematic picture of the PV solar system designed for the hospital is given in Figure 4. The system proposed for the hospital is an on grid PV system. While the sun is available during the day, the electricity need of the hospital will be met by generating electricity from solar energy. This model is known as a self-consumption model and was established to meet the electricity needs of a hospital. These models are called self-sufficient models. If the capacity of the system is well designed, which means greater than the energy consumption of the hospital, the excess energy can be supplied to the national grid during the daytime and reused at night.

**Figure 4.** On grid solar power system for KAU hospital.

In this study, the PV system was designed according to the self-consumption model approach without storing the energy generated, and then the system's self-sufficiency values in different capacities were found. At the end of the study, the optimum capacity of the PV system was determined for different self-sufficiency rates.
