OICC Press International Journal of Energy and Environmental Engineering 2251-6832 12 3 (September 2021) 2021 02 11 Exploiting the rooftop solar photovoltaic potential of a tropical island state: case of the Mascarene Island of Mauritius 10.1007/s40095-020-00375-9 EN Jay Rovisham Singh Doorga Department of Physics, Faculty of Science, University of Mauritius, Reduit, MU Ryan Tannoo Kent School of Architecture, Faculty of Humanities, University of Kent, Canterbury, GB Soonil D. D. V. Rughooputh Department of Physics, Faculty of Science, University of Mauritius, Reduit, MU Ravindra Boojhawon Department of Mathematics, Faculty of Science, University of Mauritius, Reduit, MU Journal Article 2021 02 11 Abstract Mauritius relies heavily on fossil fuel imports to satisfy the energy requirements of its population. Urged by policies to address climate change at the national and international levels, the government is committed to promote sustainable development, with emphasis laid on reducing greenhouse gas emissions. Consequently, we provide an assessment of rooftop PV potential at the national level. A sampling strategy is used to acquire reduction coefficients, which are thereafter applied to energy-based equations. The result suggests that the rooftop PV potential at the country-scale is estimated at 20.04 GW with an annual energy output of 32,512 GWh. A novel architectural layout for a Solar City to be located at an identified optimum site is proposed. A shading analysis is conducted to verify the appropriateness of the city’s structural design to harness energy from the sun. An energy analysis performed, reveals that the Solar City has a solar power potential of 13.55 MW and an annual energy generation capacity equivalent to 21.99 GWh. Construction of the Solar City would help avert the emissions of 13,744 tons of CO 2 annually.