Main Street Cupertino Lofts in Cupertino, CA. Image courtesy of NES.Main Street Cupertino Lofts garage in Cupertino, CA, is delivering a 97.2% reduction in the energy consumed by its mechanical ventilation system.
Nagle Energy Solutions’ (NES) patent-pending garage ventilation control system shaves more than 324,000 kilowatt-hours (kWh) a year from the property’s baseline of energy consumption, providing a recurring, operational-cost savings exceeding $66,000 a year, not accounting for future utility rate increases.
Real-time data logging shows that in the eight-plus months since the system has been put into use, the energy consumed by the Main Street Lofts’ two, large garage exhaust-fan motors is being limited to just 2.8% of their full-load capacity. That correlates to just 9,000 kWh consumed annually – a 97.2% reduction from the 333,000-plus kWh/year the same mechanical system would otherwise consume with no means of fan-motor control in place.
As a result, the cost to ventilate the Lofts garage is now just $1,900 per year (or $150 per month), down from more than $68,300/year ($5,700/month) property management otherwise would pay based on a utility rate of $0.205/kWh.
Developed by Sand Hill Property Company, Main Street Cupertino Lofts is part of a newly created, mixed-use neighborhood in the heart of Silicon Valley known as Main Street Cupertino. NES installed its garage ventilation controls technology in the development’s primary garage in the summer of 2015. Three years later, that system continues to deliver a recurring 97% energy savings.
Earlier this year, NES announced that its garage-ventilation control system at the Japan Center in San Francisco reduced energy consumption by 97%. Real-time data logging shows that the patent-pending NES system is lowering energy usage for ventilation from 1.25 million kWh to 38,300 kWh annually.
Originally constructed in 1968, the Japan Center garage includes a two-level main and single-level annex structure covering 300,000 square feet altogether. Before the NES system was installed in March 2017, the garage had 45 fan-motor units that were 5-horsepower each. In addition to replacing those motors, NES added variable frequency drive technology.
