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Abstract Indonesian government renewable energy mix can be accelerated if tourism industry also contributes to the generation of green electricity such as rooftop solar PV, especially for Bali Province as the world tourist destination with thousands of accommodations spread across the Bali island. In this research, the feasibility analysis to implement rooftop solar PV in Sanctoo Suite and Villa located in Gianyar Regency, Bali Province was carried out using Helioscope software simulation. The design was aimed to maximizing the benefit of free rooftop space with financial investment cost of installation. It was determined to reduce electricity bill of 345 kVA load capacity of the villa operation. Based on the simulation, the rooftop solar capacity of 69.3 kWp was available. Furthermore, the energy output generated by the rooftop solar PV annually was around 106.4 MWh. From financial analysis, the monthly electricity bill saving achieved was on average around 12 %. Further calculation on NPV and IRR shows positive value for feasible investment. It was estimated that the payback period for the investment will be around 18 years. These results showed that installation of rooftop solar PV for tourist accommodation is feasible and will promote green tourism for the industry in Bali.
Abiyasa et al. (Sun,) studied this question.