The deployment of utility-scale solar photovoltaic (PV) systems in Saudi Arabia has been fast-tracked in the period 2020-2025 with the aim of diversifying the energy mix, cutting greenhouse gas emissions, and localizing the industrial sector in the Kingdom's Vision 2030 strategy. Although the solar resource potential is high in Saudi Arabia, the deployment of giga-scale solar PV systems in the Kingdom faces challenges in the desert environment and the procurement process and the rate of institutional learning. This review article seeks to provide a synthesis of evidence on the development of utility-scale solar PV systems in Saudi Arabia in the period 2020-2025 from three different angles: (i) the effectiveness of solar PV systems in the desert environment; (ii) the economics of solar PV systems in a competitive procurement process and the rate of institutional learning; and (iii) the policy and regulatory environment that provides a conducive environment for the development of solar PV systems in Saudi Arabia. As a guideline for the reporting of the review article, PRISMA 2020 was used as a template for the transparent reporting of the review article [1]. Here, we discuss the implementation of national-level targets in Saudi Arabia in terms of specific project-level mechanisms. This paper uses existing literature on PV in desert environments, such as the impacts of soiling in Saudi Arabia and mitigation strategies, techno-economic studies of utility-scale PV in different cities in Saudi Arabia, localization constraints/avenues, etc. This paper attempts to synthesize existing literature on PV in desert environments. This paper concludes that the competitiveness of utility-scale PV in Saudi Arabia is supported by irradiance conditions and a decline in global costs. This paper concludes that the key to sustainable implementation of utility-scale PV in Saudi Arabia lies in the integration of three “execution interfaces”—site interface, plant interface, and system interface. This paper provides an integrative framework and review-based roadmap to project developers/policymakers in Saudi Arabia in the context of utility-scale PV. This paper provides a set of recommendations to standardize data/resources, desert environment-based plant engineering, O&M, grid integration, procurement strategies, etc. This paper concludes with a set of research questions.