CSU San Bernardino Reduces Energy Costs at University Hall by
$57,000 per year from Retrocommissioning Project |
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| Cogent Energy was the Monitoring-Based Commissioning provider for University Hall at California State University, San Bernardino. This highly collaborative project between Cogent Energy and the University received incentive funding under the UC/CSU/IOU Energy Efficiency Partnership Program. The building, constructed in 1991, is served by variable air volume air handlers with DDC controls at the central air handler level, but never went through a formal commissioning process during construction. We worked closely with the University to identify and implement several low-cost improvements, and provided training and diagnostic tools to help ensure the persistence of the significant savings realized through the project |
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| Building/Project Summary |
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| Annual Energy Savings: |
- 303,000 kWh electricity
- 30 kW electric demand reduction
- 15,800 therms natural gas
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| Project Economics: |
- $57,000 annual energy cost savings
- $98,000 project cost
- 1.7 year simple payback period
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| Greenhouse Gas Reductions: |
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| Measures Implemented Included: |
- Repair of frozen and malfunctioning economizer dampers
- Repair of chilled water and hot water valves
- Optimization of supply air discharge temperature control
- Installation and commissioning of isolation dampers to eliminate conditioning of unoccupied spaces
- Reduction in air handling unit operating schedules
- Reduction in lower limit of supply and return fan VFD speed
- Tuning of valve and damper control loops to eliminate hunting
- Implementation of static pressure reset controls
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| You can download the PDF file for printing, here. |
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