Single-Occupant Public-Sector Office Facility
Re-purposing a 24/7 military facility into conventional office space
- A 1960s-vintage, 166,000-square-foot administration building on the grounds of a major airport had originally been a 24-hour, 7-days-a-week air national guard station. Very few energy efficiency improvements had been performed in the four years since the facility was converted into a conventional single-occupant office building.
- Facility management acknowledged the need to cut excessive energy use and improve HVAC system performance. Site energy use intensity (EUI) was far greater than expected, based on data for comparable office buildings.
- Site staff were very receptive to recommendations to improve overall energy performance. They decided to pursue retro-commissioning as a means to maximize savings at minimal cost through optimization of their HVAC equipment and Siemens control system.The corporate data center opened in 1995 and was expanded in 2004 and again in 2007, when it totaled 192,000 square feet.
- We assisted the building owner with the paperwork required to participate in the state-administered retro-commissioning incentive program for publicly-owned facilities.
- After completing our on-site investigation and off-site analysis, we identified and assisted with the implementation of seven energy-saving opportunities with the capacity to reduce electricity use by 28% and natural gas use by 30%.
- Recalibrating the building’s energy systems to meet more conventional office loads accounted for the majority of energy savings.
- The building owner is expected to save more than $50,000 in energy costs, or 27% of its prior total annual expense, year after year. The project yielded a simple payback of 5 months.We assisted the building owner with the paperwork required to participate in the state-administered retro-commissioning incentive program for publicly-owned facilities.