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Exhibitor Profile:

Enovity

Across the Sacramento River from the 2008 California Green Technology Summit, Sacramento’s iconic Ziggurat building served as a perfect case study for Expo visitors who wanted a first-hand look at the results and benefits of a comprehensive retro-commissioning program. The building, headquarters for California’s Department of General Services (DGS), is the site of a recently completed effort that is now saving DGS an estimated $72,000 yearly in energy costs through a reduction of the building’s electricity consumption of 550,000 kWh and 100 therms. This represents a reduction of 7 percent of the building’s energy use and is the equivalent of 219 metric tons per year of CO2 that will not be introduced into the atmosphere. The building retro-commissioning effort also helped the facility in its ongoing initiative to qualify the building as a LEED-certified Existing Building (EB).

Enovity, Inc., Summit exhibitor and San Francisco based energy engineering firm, completed the retro-commissioning under its Innovative Energy Efficiency Partnership Program for State Leased Facilities. Enovity developed and implements this CPUC-funded program on behalf of PG&E and the California ratepayers to reduce energy consumption in California State leased buildings.

Enovity paid $57,000 in cash incentives to the building’s owner, Wachovia Bank, NA to help pay for the implementation costs associated with the retro-commissioning measures. These measures included improvements to the control of the central plant and HVAC equipment and building lighting systems and the addition of variable speed drives for the building’s cooling tower fans. Enovity’s retro-commissioning engineers worked closely with Ziggurat facility staff to identify and implement measures that were practical, achievable and verifiable. DGS has an ongoing commitment to save energy and Enovity created the DGS Partnership Program to address the market barriers to implementing energy efficiency strategies in their leased facilities. The program is still accepting applicants, helping California in its nation-leading efforts toward an energy efficient and sustainable future.

 

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