Towards Carbon Neutrality by 2040 of University Building at King Mongkut’s University of Technology Thonburi (KMUTT) Thailand

Thai government pledges to reach carbon neutrality by 2050 and to achieve net-zero Greenhouse Gas (GHG) emission by 2065. King Mongkut’s University of Technology Thonburi (KMUTT) aims to be a part of Thailand’s achievement of Carbon Neutrality Goals and announced on November 2, 2021 the declaration of intent ‘KMUTT Carbon Neutrality 2040. It is important to investigate the situations of electricity consumption of university building and provide energy efficiency measures to fulfil the KMUTT’ Goals. In this study, it is found that total CO₂ emission from electricity consumption in all building from four campuses of KMUTT emit 15,716 tCO2 by 2019 as base year which are responsible for a large portion or 98% of total emission. Regarding the energy efficiency (EE) measures in university building, this study analyzes potentials of CO₂ reduction during 2019-2040 from increasing energy efficiency in university building using historical data such as utility bills and energy efficiency standards which are higher than the Building Energy Code (BEC), comprises of High Energy Performance Standard (HEPS), Economic building (Econ) and Near Zero Energy Building (NZEB) based on two scenarios (Current Policy Scenario (CP) and Net Zero Scenario (NZ)). Results indicate that compared to baseline scenario, CP and NZ scenario can reach electrical savings and CO₂ reduction at 14.6%, 16.3% in 2030, 2040 and 40.3%, 54% by 2030, 2040 respectively. Measures and recommendations are made to improve all four campuses buildings towards green building including PV rooftop, building envelope, electrical appliance, HVAC systems, energy management control and behavioral controls.