Performance evaluation of a stand-alone photovoltaic power system in Tarutao National Park

This paper presents performance analysis of the Electrification Photovoltaic (PV) system at Haad Sai Khao Ranger Station and Ao Talo Palian Ranger Station in Tarutao National Park Satun province. Using data collected from January to December 2022, the data were analyzed according to the IEC 61724 standard. The performance analysis results of PV system in terms of Reference Yield, Array Yield, and Final System Yield at the Haad Sai Khao Ranger Station were 3.61, 1.86 and 0.99 kWh/kWd, respectively and at the Ao Talo Palian Ranger Station were 3.44, 2.41 and 0.7 kWh/kWd, respectively. Haad Sai Khao Ranger Station and Ao Talo Palian Ranger Station reduced the use of diesel by 2,971 and 2,298 liter/year, respectively. Therefore, both systems can reduce the amount of diesel used in electricity generation and reduce soil and air pollution.