Techno-economic assessment of solar-powered lighting: a case study of the Cape Town Metropolitan area

Abstract

This research addresses the critical need for sustainable and cost-effective public lighting solutions in the Cape Town Metropolitan Area, where previous literature has overlooked a comprehensive evaluation of solar lighting systems in urban settings. This has led to uncertainties in optimal system architecture, cost-effectiveness compared to traditional gridpowered lighting, energy consumption patterns, and technical feasibility under specific meteorological conditions. The primary research question driving this study is the feasibility and economic viability of solar-powered street lighting in Cape Town. To bridge these gaps, the research employs a thorough analysis that includes system architecture exploration, costeffectiveness comparisons, energy consumption pattern analysis, and technical feasibility assessment under Cape Town's unique meteorological conditions, utilising quantitative data collection and analysis methods. The research aims to determine the feasibility, costeffectiveness, and potential benefits of solar-powered lighting systems for urban sustainability, with anticipated outcomes that include insights into system architecture optimisation, cost comparisons, energy consumption patterns, and technical feasibility to guide decision-making in urban lighting infrastructure planning. This study fills the gap in understanding the economic feasibility, technical viability, and societal impact of scaling up solar-powered lighting in urban settings like Cape Town. The findings are expected to inform policymakers, lighting suppliers, and residents, potentially reducing reliance on conventional energy sources, cutting electricity costs, and promoting renewable energy and sustainable development. Ultimately, this research contributes valuable insights to the broader discourse on integrating solar energy solutions in urban environments.