en Smart Grids Applications Smart Grids Applications Only For Articles of ELECRiS 2024 Only For Articles of ELECRiS 2024 <span style="font-size:10pt"><span style="text-justify:inter-ideograph"><span new="" roman="" style="font-family:" times="">Photovoltaic (PV) energy is increasingly recognized as an environmentally friendly source of renewable energy. Integrating PV systems into power grids involves power electronic inverters, adding complexity and evolving traditional grids into smarter systems. Ensuring the reliability of decentralized PV generation is crucial, particularly as PV systems are often exposed to extreme weather conditions. This study investigates the impact of temperature and solar radiation on the performance of a PV array, focusing on key characteristics such as open-circuit voltage (V_OC), short-circuit current (I_SC), and maximum power (P_MAX). Using PSCAD/EMTDC simulations, the study analyses these characteristics under varying temperatures (5&deg;C to 45&deg;C) and radiation levels (200 W/m&sup2; to 1200 W/m&sup2;). Results indicate that V_OC increases with higher irradiance but decreases with higher temperatures. I_SC increases with both higher radiation and temperature, while P_MAX is optimized at high irradiance and low temperatures. The impulse withstand voltage (V_imp), a critical factor for PV system reliability, is assessed according to the PD CLC/TS 50539-12 standard. Findings reveal that at low temperatures and high radiation, the V_imp requirement is highest, emphasizing the need for robust voltage protection in PV systems. These insights underscore the importance of considering local climate conditions and implementing effective thermal management to enhance the performance and reliability of PV systems.</span></span></span> Solar PV Array, Temperature, Radiation, Impulse Withstand Voltage. 146 153 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-5516-1&slc_lang=en&sid=1 Jia Wen Tang wendytjw96@gmail.com 1800319475328460016511 1800319475328460016511 No Centre of Excellence for Renewable Energy, Faculty of Electrical Engineering & Technology, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia. Chin Leong Wooi clwooi@unimap.edu.my 1800319475328460016512 1800319475328460016512 Yes Centre of Excellence for Renewable Energy, Faculty of Electrical Engineering & Technology, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia. Wen Shan Tan tan.wenshan@monash.edu 1800319475328460016513 1800319475328460016513 No School of Engineering and Advance Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia. Nur Hazirah Zaini nurhazirah@usim.edu.my 1800319475328460016514 1800319475328460016514 No Power High Voltage and Energy, Faculty of Engineering and Built Environment, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan, Malaysia. Yuan Kang Wu allenwu@ccu.edu.tw 1800319475328460016515 1800319475328460016515 No Department of Electrical Engineering, National Chung-Cheng University, Chiayi, Taiwan. Syahrun Nizam bin Md Arshad@Hashim 1800319475328460016516 1800319475328460016516 No Centre of Excellence for Renewable Energy, Faculty of Electrical Engineering & Technology, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia.