Since 2006, Delta has actively promoted green building development by leveraging its core technologies. In recent years, the company has continued to respond to both domestic and international net-zero building standards, including the LEED Zero certification from the U.S. Green Building Council (USGBC) and the net-zero building standard under Taiwan’s Building Energy Efficiency Labeling program. In 2021 and 2022, Delta’s Namasia Minquan Elementary School and Americas Headquarters respectively received LEED Zero Energy certification. This year brings further good news: not only has Delta's Rui-Guang Building II in Taipei achieved net-zero certification under Taiwan’s Building Energy Efficiency Labeling program, but the Delta Shanghai Operations Center and R&D Building has also been awarded LEED Zero Energy certification by USGBC. These achievements demonstrate Delta’s commitment to promoting net-zero buildings by enhancing the sustainability of its own operations.

Taipei Headquarters - Ruey Kuang Building II
Completed in 2023, Taipei Headquarters - Ruey Kuang Building II integrates seamlessly with Ruey Kuang Building I as part of the global headquarters complex, achieving a 100% renewable energy usage rate. The building features an extensive glass curtain wall design combined with high-insulation, low-emissivity (Low-E) glass, effectively blocking outdoor heat while maintaining excellent visible light transmittance. This enhances natural daylighting and reduces the need for artificial lighting. Additionally, operable windows are installed on both the north and south façades to promote natural ventilation, helping to lower indoor temperatures and reduce air conditioning loads.

In terms of active design, Ruey Kuang Building II incorporates a building central control system that integrates subsystems such as HVAC, lighting, security, renewable energy, and EV charging. This system is linked to an energy management platform for electricity monitoring, demand management, and fault prediction. As a result, the overall HVAC and lighting systems achieve energy savings of 30% and 60%, respectively, compared to baseline values. Many of Delta’s own solutions are employed, including EC fans, variable frequency drives, PLC smart control, air quality monitoring, LED energy-saving panel lights, and lighting control systems.Taipei Headquarters - Ruey Kuang Building II

Delta Shanghai R&D Building
The Delta Shanghai R&D Building was launched in 2011 and has also extensively adopted green building practices. It integrates a large number of in-house developed building automation and smart energy solutions. Over the years, it has received LEED Gold certification for new construction and LEED Platinum for existing buildings from USGBC.

Recently, the R&D building expanded its solar power infrastructure using internal carbon fee funding. By 2024, the building achieved a 100% renewable energy usage rate, with its self-built solar system generating over 600,000 kWh annually. The campus also features an integrated solar-storage-charging parking facility that not only meets EV charging needs but also applies DC grid-tied solar-storage technology to achieve peak shaving and valley filling, thereby improving overall energy efficiency.

In terms of management, the building employs an energy management system and a 3D zero-carbon data management platform to enhance data visualization and decision-making efficiency. The cooling system design fully considers natural ventilation and incorporates automated control with variable frequency drives, air quality sensors, and fresh air systems, effectively reducing air conditioning loads. For lighting, LED fixtures are paired with demand-based dimming systems indoors, while smart solar streetlights are installed outdoors. Extensive use of natural daylighting further significantly reduces overall lighting energy consumption.

The Ruey Kuang Building II and the Delta Shanghai R&D Building exemplify Delta’s use of its own technologies to advance net-zero building development. Beyond these two buildings, Delta’s other green buildings also demonstrate excellent energy-saving performance. As of 2024, Delta has established 35 green buildings and 2 green data centers worldwide. Multiple company-owned and donated green buildings have undergone rigorous assurance under the ISAE 3000 international standard. In 2024 alone, these buildings collectively saved over 45.43 million kWh of electricity and reduced carbon emissions by approximately 23,330 metric tons.

Delta will continue to invest in R&D and integrate more innovative solutions, transforming buildings into intelligent platforms capable of autonomous regulation and energy distribution. Through these efforts, Delta aims to inject stronger momentum into the global transition toward net-zero emissions.Delta Shanghai R&D Building