Since the construction of Delta's first green building at the Southern Taiwan Science Park in 2006, Delta actively promised that all future new Delta plants and offices shall implement green building concepts. In 2023, Delta's Tainan Plant 2 passed LEED Gold and Taipei Ruey Kuang Building II passed LEED Platinum and EEWH Diamond Grade certification, Taipei Ruey Kuang Building II also became the first new building in Taiwan to receive the Nearly Zero-emission Building Certification. As of December 2023, Delta has built and donated 34 green buildings and 2 green data centers around the world.
Delta continues to expand products and energy-efficient solutions in green buildings and has received certification from the US Green Building Council (LEED), the UK Building Research Establishment (BRE), BREEAM, Ecology, Energy-Saving, Waste Reduction, and Health (EEWH) system in Taiwan, and the Green Building Evaluation Standards in China.
Delta has autonomously established comparison standards based on the EUI (kWh/m2) of local building standards each year. We calculate energy savings of our green buildings including 20 plants and office buildings as well as 5 green buildings donated to academic institutions in reference to the ISAE 3000 Assurance standard. In 2023, Delta's global certified plants and offices and donated green buildings collectively saved 43.26 million kWh of electricity and reduced carbon emissions by approximately 22,694 metric tons CO2e. In addition, Delta uses the power usage effectiveness (PUE) of data centers as the baseline to evaluate the electricity savings every year. In 2023, Delta's certified that its green plants and buildings collectively saved, in total, 36,125 kWh of electricity and reduced carbon emissions by approximately 17.88 metric tons CO2e.