การบริหารจัดการพลังงานสำหรับกลุ่มอาคารที่ใช้พลังงานใกล้เคียงศูนย์ กรณีศึกษา ศูนย์ฝึกอบรมแม่เมาะ กฟผ.

Abstract

This research aims to analyze and determine the optimal size of solar photovoltaic systems and energy storage systems for the Mae Moh Training Center building group of the Electricity Generating Authority of Thailand (EGAT), with the goal of developing them into Nearly Zero Energy Buildings (nZEBs). The research employs energy consumption behavior analysis, solar photovoltaic system simulation, and optimization using the Generalized Reduced Gradient (GRG) method. The results indicate that the most suitable configuration consists of a 136 kW (262 panels) solar photovoltaic system combined with a 100 kWh energy storage system. This setup can reduce energy consumption by 50%, achieve a 75% solar energy utilization rate, and has a payback period of 8.67 years. The system can produce 503.36 kWh of electricity per day, with the battery capable of supplying 59.83 kWh per day. This research demonstrates that developing nZEBs requires simultaneous consideration of energy efficiency and economic viability. Integrating energy storage systems with solar photovoltaic systems enhances energy management flexibility, reduces impact on the power grid, and improves energy security. Although initial costs are higher, this approach offers greater long-term benefits. The findings of this research can serve as a guideline for developing other buildings into nZEBs and support future energy and environmental policies in Thailand.