ENERGY STAR Labeled Building Profile
St. Anthony Hospital-Lakewood, CO
11601 W 2nd Drive
Lakewood, CO 80228
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The St. Anthony Medical Campus made a commitment to energy efficiency in 2005 that continues to date. In late 2012, the hospital assembled an energy optimization team comprised of St. Anthony’s facility operators and managers as well as professionals from design, commissioning, controls and construction firms, all of whom built the hospital to further energy efficiency goals. Calculations show that the energy saving measures implemented in 2013 will reduce the hospital’s energy consumption by over 8 percent and save over $84,000 in annual utility costs.
Energy savings measures implemented in 2013 include:
- Hydronic Free Cooling programming improvements that eliminated chiller short-cycling; this extended the operating hours of the chilled water system plate and frame heat exchanger.
- Elimination of Air Handling Unit air side economizer limits originally put in place to prevent nuisance freeze failures. This measure significantly extended the operating hours of AHU air side economizers and reduced chiller plant energy use.
- Air Handler single sensor DAT control; this measure eliminated simultaneous heating and cooling and improved air side economizer effectiveness.
- Occupancy sensor activated operating room unoccupied flow reduction from 60% of max flow to 25-35% of max flow; this measure saves fan, chilled water and boiler energy.
- Operating room reprogramming for variable flow; this allows air flows to increase air above the code required minimum flows to provide a quick response when the surgery staff calls for cooler room temperatures but reduces the flow to the code-minimum flow. This measure saves fan, chilled water and boiler energy when the extra air is no longer needed to cool the space; more than 80% of the occupied periods do not require the extra air.
- Kitchen exhaust and make-up air unoccupied flow reduction. Heat sensors were added to the kitchen hoods to allow the associated exhaust fans and make-up air constant volume terminal units to close when cooking appliances are not generating heat. Exhaust and make-up air flow are reduced. This measure saves fan, chiller plant and reheat energy.
- Administrative area occupancy scheduling; space temperature unoccupied schedules and setpoints were programmed for fan and plant energy reduction during unoccupied periods.
- Anesthetizing Area Humidity reduction. The hospital took advantage of an ASHRAE 170 change recently adopted by CMS that allows minimum humidity in anesthetizing areas to be reduced from 30% to 20%; this is a big energy saver in Colorado’s dry climate.
Communications:
Unavailable
Testimonial:
Unavailable
Please note: Narrative information in this profile has been provided by Catholic Health Initiatives or a representative of this facility. Other building information was verified and submitted to EPA at the time of application. Building energy performance, operating characteristics, and ownership/management may be subject to change over time.
Building Owner:*
Catholic Health Initiatives
Property Manager:*
Centura Health
Year(s) Labeled (Rating):
2014 (82)
2015 (84)
2016 (80)
Facility Type: Hospital (General Medical & Surgical)
Total Floorspace: 696453 sf
Year Constructed: 2010
Contract Type: None
Technologies Used:
| | Stage 5-Heating and Cooling Plant |
