Abstract
At present public lighting which is mainly street lighting accounts for 3% of total electricity use of the world. In developing countries electricity depends mainly on non-renewable thermal resources such as coal or gas. Once these resources are used up they cannot be replaced which is a major problem for humanity. Renewable energy sources such as solar and wind power are clean safe and inexhaustible. However solar energy is dependent on sunlight and wind power is unpredictable so it s a good idea to combine them. This study we present the SDT streetlight design and implementation of a solar PV and wind turbine hybrid system to obtain the electricity for streetlights. The HOMER software was used to determine the cost of energy and performance which provides investments of feasibility. Compared with the streetlights using power from standard electrical grid the proposed streetlights can save the electricity consumption of 15 592 800 kWh/y and reduce the CO2 emission of 6 704 904 kgCO2. In addition the residual electricity can be resold through the smart grid and make the city smarter and more sustainable reduce their carbon emissions and reimagine their travel and businesses for a net-zero world. ? 2023 The Author(s) under exclusive licence to Springer Nature Singapore Pte Ltd.
