การศึกษาความคุ้มค่าทางการเงินในการลงทุนติดตั้งระบบผลิตไฟฟ้าจากพลังงานแสงอาทิตย์บนหลังคาของอาคารสำนักงานองค์การบริหารส่วนตำบลเทพกระษัตรี

Project Title: A Feasibility Study of Solar Rooftop System Installation at Thep Krasatti Subdistrict Administrative Organization Office, Phuket Province the objective of this study is to evaluate the spatial potential, financial feasibility, and technical implementation guidelines for installing a solar PV system to reduce energy expenditures at the Thep Krasatti Subdistrict Administrative Organization (SAO) office. The findings indicate that Thalang District possesses high average solar irradiance, making it exceptionally suitable for clean energy production. From a technical perspective, the study recommends the implementation of a 75 kWp On-Grid System. Economically, the project requires an estimated initial investment of 1,700,000 – 1,800,000 THB. The system is projected to generate an average of 137.97 MWh per year, resulting in electricity cost savings of approximately 400,000 THB annually, with an estimated payback period of 4.2 years. In addition to the financial benefits, this project significantly reduces greenhouse gas emissions (CO₂), supporting the local low-carbon policy and serving as a sustainable renewable energy model for the community in Thalang District.