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Current Energy-Saving Initiatives
The Facilities Maintenance and Operations (FMO) Department is responsible for management of the UI utility budgets. Therefore, FMO has a significant part to play in the University-wide Cost Restructuring Initiatives currently being implemented in response to the statewide budget problems. Beginning in FY02, FMO has internally designed and funded Energy Savings Initiatives to meet this commitment. Current measures to date are saving approximately $392,000 annually from the UI utility primary fuel (electric, gas & wood) budgets.
Steam Distribution System
Various measures to improve steam generation and distribution systems, including piping insulation and boiler system control improvements are estimated to save 8,400 million Btu of heating energy, 160,500 kWh of electricity or $33,000 annually. Estimated cost is $120,000.
Implement Unoccupied Mode for HVAC Systems Campus-wide
The heating and air conditioning systems are either shut down or curtailed during unoccupied hours for a number of buildings on campus and additional buildings are currently identified to have an unoccupied mode implemented. The combined measures are estimated to save approximately 139 million BTU central chilled water, 7,000 million BTU heating, 561,000 kWh electricity, and $129,600 annually. Estimated cost is $224,000.
Lighting Modifications
These measures involve renovating existing exterior and interior lighting fixtures to reduce electricity usage. This measure is estimated to save about 1,702,000 kWh and $104,500 annually. Estimated cost is $167,600
Install Variable Speed Drives (VFD) on Various Campus Building Fans and Pumps
This measure varies the speed of the heating and air conditioning fans and pumps as the building heating or cooling load changes, saving electric energy over a constant speed fan or pump. This measure is estimated to save 1,623,000 kWh of electricity and $71,200 annually. The cost is estimated to be approximately $190,300.
Upgrade Heating Ventilation and Air Conditioning (HVAC) Systems at Various Campus Building
These measures upgrade the control of HVAC systems on campus to improve system performance and efficiency. The combined measures are estimated to save approximately 1,300 million BTU central chilled water, 4,400 million BTU heating, 664,400 kWh electricity, and $37,000 annually. The cost is estimated to be approximately $463,000.
Other water and energy savings measures at Various Campus Building
These measures include low flow shower heads, occupancy sensor control for vending machines, premium efficiency motor replacements, etc. designed to improve system performance and efficiency. The combined measures are estimated to save approximately 59 million BTU heating, 216,000 kWh and $16,300 annually. The cost is estimated to be approximately $12,000.
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