The ratio of renewable energy production divided by total energy usage per year

    National Chiayi University (NCYU) has achieved a renewable energy ratio of 17.25%, calculated by dividing the total annual renewable electricity generation (4,270,551 kWh) by the total university electricity usage (24,760,015 kWh) in 2024.  This proportion reflects the integration of four major renewable energy systems—solar power, wind power, green hydrogen energy, and biomass energy (wood pellets)—which together contribute significantly to the campus energy mix. Rooftop photovoltaic panels across four campuses generated the majority of green power, complemented by small-scale wind turbines, solar-powered hydrogen electrolysis systems, and bioenergy from wood pellets.  All renewable systems are connected to the Energy Management System (EMS) for real-time monitoring and load optimization, enabling efficient use of on-site energy resources and reducing dependence on grid electricity. The university’s renewable energy output covers approximately one-sixth of its total annual electricity demand, positioning NCYU among the leading institutions in Taiwan for renewable energy utilization.  These efforts contribute directly to SDG 7 (Affordable and Clean Energy) and SDG 13 (Climate Action), advancing the university’s long-term goal of achieving energy self-sufficiency by 2045.

Renewable energy production (2024): 4,270,551 kWh

Total energy usage (2024): 24,760,015 kWh

Renewable energy ratio: 4,270,551 ÷ 24,760,015 × 100% = 17.25% (>2–25%)