I would look at the following items if they have not been considered:
Request that a thermographic study be done of the campus next winter. This will show you where to spend money for preventing energy loss. -Windows (heat loss/solar gain/air infiltration) -Insulation in walls and roof (a flat roof with saturated insulation is like throwing money out the window) -General caulking and sealing for air infiltration/exfiltration.
Lighting -motion sensors/timers where applicable -daylight harvesting -fixture, ballast and lamp efficiency,replace incandescent lamps with CF where practical (these are big Energy Star issues) -using "cleaner" light settings (i.e., 2 out of 4 lamps with lighing control or split switching) -non-light polluting street and external lighting
Do you have a central plant like most campuses? Maintenance and operation are key for economical operation. -proper air and water balance is essential. -how is the water treatment? Pipes and equipment with fouling and scaling operate very inefficiently. -filters should be cleaned regularly. -if the Building Control System has not been updated recently, significant savings may be available. -chillers should be efficiency tested periodically -do thay have a good refrigerant management system? -if dorms have a secondary domestic hot water circulation system (or their own primary system), solar collectors could be fit on individual buildings (more difficult if they are on a big central system). -are alternate fuels available? Wisconsin has a lot of wood waste that could be used (or did in the past). -is ventilation adequate?
Other -when buildings are re-roofed, are vegetated or high albedo roofs possible? This could be a good long term plan. -pervious paving in parking areas. -do you facilities people use low emitting paints, chemicals, etc? -recycling -water efficient landscaping -Rain water harvesting
Go through your LEED checklists and you can find a lot of areas to investigate. There are now LEED templates for Existing Buildings - Operations & Maintenance and guidance for district heating/cooling systems. Much of this will be in the hands of your facility managers.
good luck!
Bruce
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