PARAMETRIC ESTIMATION OF ELECTRICAL ENERGY GENERATION FROM ROOF-MOUNTED PHOTOVOLTAICS FOR CLUSTERED SETTLEMENTS: A CASE STUDY OF A PROPOSED SPECIAL ECONOMIC CITY

Abstract

Abstract: This paper presents a parametric model specifically designed to estimate the solar energy potential from roof-mounted photovoltaic (PV) systems in a proposed Special Economic City. The study focuses on phase one of the city, which includes various building types such as an international conference centre, hotels, schools, residential buildings, and hospitals. The parametric model is developed based on a thorough theoretical framework and an extensive literature review. Literature indicates that the proposed city's geographical context offers an average solar irradiation of 3.4 kWh/m2day. By adopting an optimal tilt angle of 10º relative to the horizontal, aligned with the city's latitude, and a generally southerly orientation of PV panels, the energy yield can be further optimized. A conservative 22% shading factor is adopted in the absence of site-specific shading data. To ensure practicality and space utilisation, the model accounts for only 60% of the total roof area to be utilized for PV installation, leaving space for circulation during maintenance works. The developed parametric model serves as a valuable tool for designing and optimising PV systems within the city's clustered settlements, contributing to a sustainable and energy-efficient urban environment. The findings offer essential insights for informed decision-making and future investments in solar energy infrastructure, positioning the city as a lead hub for renewable energy utilisation and driving economic growth in Northern Nigeria. Embracing solar energy presents a promising opportunity for the city to establish itself as a sustainable and thriving centre for business and living.