SPUNEI E, PIROI I, PIROI F. Technical performance analysis of a 40 kW photovoltaic installation. Studia UBB Engineering [Internet]. 2020 Nov. 23 [cited 2025 May 9];65(1):171-8. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbengineering/article/view/66