New Tech Headquarters Becomes the First LEED Zero Energy-Certified Green Building in Fremont


In addition to the more recent upgrades, several of the original integrated solutions that made Delta Americas’ HQ a LEED Platinum green building back in 2018 have certainly contributed to the new LEED Zero Energy certification, including:

HVAC. Host to one of the largest geothermal systems in Silicon Valley, Delta’s unique location in the Bay Area takes advantage of the natural underground warm springs. With over 20 miles of horizontal piping at 15- and 30-foot depths, a Delta VFD circulates water in a closed-loop system to exchange heat for an HVAC system estimated to be 70% more efficient than a cooling tower.

Nearly 92 miles of piping is embedded in the facility’s floors and ceilings for radiant heating and cooling, providing stable and comfortable temperatures, efficiently. Working in collaboration with the Center for the Built Environment (CBE) at the University of California, Berkeley, this system has been a case study to determine optimal operations and controls for maximum energy efficiency.

Lighting. With LED lighting systems in the parking lot and around the office, Delta’s lighting controls integrates with its building management system to ensure smooth operations at all hours. Taking advantage of the floor-to ceiling panoramic windows, the open floor plan and low-e windows, zones are created to minimize waste from excessive lighting. Light meters placed around the office ensure sufficient light levels for safety and productivity.

Positive and Sustainable Change for the Future

The project sends a powerful message to building owners, managers and architects about the crucial role of sustainability in commercial real estate (CRE). “As we, Delta, have created 32 green buildings worldwide and continue to build more, both through new constructions and retrofits, our aim is to demonstrate to the industry the significant contributions that green buildings make toward sustainability,” Huang said. “These buildings serve as concrete evidence of the substantial reduction in CO2 emissions and electricity costs that can be achieved.”

The company’s Fremont project emphasizes that sustainability in CRE is not only attainable but also economically viable and beneficial in the long run. “We want to inspire building owners, managers and architects to recognize the potential of incorporating sustainable design and technologies into their projects,” Huang said. By gradually implementing upgrades in existing buildings such as LED lighting, automation for HVAC, lighting, shades, and improvements in indoor air quality (IAQ), solar PV, and energy storage systems (ESS), the path to sustainability becomes more feasible and manageable, he added.

“We aim to foster a mindset shift where sustainable practices are considered fundamental rather than optional,” Huang concluded. “Together, we can drive significant positive change and create a built environment that aligns with our shared vision of a more sustainable and environmentally conscious future.”



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