To accelerate the adoption of green building designs, Delta has participated in the construction, completion, and operation of multiple green buildings on campuses through donations and management. Each case study is established to show the possibility of adopting adequate passive and active designs, which contribute to lowering energy consumption and carbon emissions. 

Namasia Mincyuan Elementary School
Namasia Mincyuan Elementary School is a reconstructed green campus after Typhoon Morakot. In 2012, the new campus passed EEWH Diamond green building certification, the highest ranking available in Taiwan. It then became the first academic campus in Asia to hold the LEED Zero Energy certification in 2021, and to date, its energy intensity keeps declining under the synergies of energy-efficient building designs, renewable energy, and energy storage systems. With adequate building passive and active designs, the campus has over a decade served as a shelter for local indigenous people and had accommodated more than 5,000 individuals during climate disasters. 

Continuing Delta's commitment to offering children and indigenous villagers a safe and environmentally-friendly learning space, we further helped rebuild the affiliated kindergarten of the school that likewise integrated the cultural wisdom of the indigenous people with energy-saving technology and design. The kindergarten was officially opened in 2022.

Y. S. Sun Green Building
Y. S. Sun Green Building is a research center in National Cheng Kung University (NCKU). The building itself is an exceptional green building that obtained EEWH Diamond Green Building Certification and LEED Platinum Green Building Certification. It is also the first zero-carbon building in Taiwan and had been recognized as the greenest building in the world by Mr. Jerry Yudelson, known as the “Godfather of Green Building” in the U.S.

In 2022, the building was listed as one of the exemplary cases for its remarkable energy-saving performance in IPCC's AR6 Climate Change 2022: Mitigation of Climate Change report. With passive and active designs suiting a hot and humid climate, it was expected to be 65% more energy-efficient than similar buildings, but now its energy-saving ratio reaches 86% under 10-year good maintenance. It then proves that very low-energy buildings are achievable even in a hot-humid climate. 

Kwoh-Ting Optics & Photonics Building of National Central University
Kwoh-Ting Optics & Photonics Building in the National Central University (NCU) received EEWH Bronze Green Building Certification. It adopted energy-saving technologies such as natural lighting and LED lights and took advantage of the temperature difference between the campus lake and the surroundings to create natural ventilation. 

Delta Hall of the National Tsing Hua University
Delta Hall in the National Tsing Hua University (NTHU) received EEWH Bronze Green Building Certification. It adopted sustainable strategies including natural lighting and ventilation, shading design, LED lighting, and solar PV systems. It also minimized the ground excavation during the construction.

Delta Building of National Cheng Kung University
Delta Building in the National Cheng Kung University (NCKU) adopted a shade design, natural ventilation, a high atrium to bring natural light in, and other energy-saving technologies. It saved 13% of electricity consumption compared with similar office buildings.

Historical Lecture Hall of the Taichung First Senior High School
The Historical Lecture Hall of the Taichung First Senior High School was built in 1937, and its renovation was completed in 2015. Preserving the original elegance of roof trusses, the renovation introduced green building designs, such as buoyancy ventilation and light shelves that could make use of indirect daylight. After renovation, the lecture hall became the first historical building that passed a carbon audit. 

Delta Ring of Celestial Bliss
Delta Ring of Celestial Bliss had been the world's biggest lantern with a 10m tall, 70m wide, and 270° circular structure. With recycling and sustainability concepts implemented throughout its lifecycle, the ring was built with only reusable materials. It was also the first building in Taiwan to undergo a carbon audit. The carbon emissions from the ring were only 21.3% of conventional steel and concrete buildings of the same type. After the festival, all of the construction materials were reused: the steel became the roof structure of a semi-outdoor basketball court for an elementary school in Taitung; the screen was recycled as handbags; and the LED lighting solutions were installed at the Taiwan National Museum of Natural Science as an outdoor lighting design. In 2015, the ring won the A+ Awards, an international award for architecture, in the category of Temporary Buildings and Commercial Pop-Ups. 

Orchid House
In 2014, Delta assisted National Chiao Tung University (NCTU) to participate in the Solar Decathlon Europe (SDE), with multiple relevant integrated energy solutions and competed with other 20 teams from the world's top universities to build energy-saving and comfortable green buildings in Versailles, France. The team built the "Orchid House," which was designed to be placed on the roof of urban buildings, seeking to facilitate climate mitigation and adaptation in cities and to form a new city skyline. Delta's newest solar power generation, storage, and energy management system, were installed in the Orchid House, and further enabled the opportunity for the team to successfully win third place in the competition of "Energy Efficiency." It additionally claimed first place, second place, and third place respectively in the competition of "Urban Design," "Innovation," and "Popularity."