Techno-economic study on grid-connected PV system for major cities in Saudi Arabia Amjad Ali, Muzafar Hussain, Fahad A. Al-Sulaiman, Shahbaz Tahir, Kashif Irshad, Md Hasan Zahir and Muhammad Zeeshan Malik E3S Web Conf., 173 (2020) 02005 Published online: 09 June 2020 DOI: 10.1051/e3sconf/202017302005