| Building |
Project Description |
Planned Savings |
|
|
kWh |
Therms |
| Bainer |
Re-commissioned HVAC air handling units (AHUs) and hot water, chilled water pumping systems to optimize performance. Modified the main building tower AHUs with new EMS controls and implemented time of day (TOD) scheduling to shut some AHUs down after hours. |
215,775 |
52,855 |
| Campus Wide |
Replaced non functional or leaking steam traps with new ones campus wide. Prepared campus-wide energy analysis report on the current condition of steam traps and will utilize that information to maintain and replace steam traps in the future. |
0 |
392,490 |
| Central Heating / Cooling Plant B Plant |
The existing steam absorption chilling system, which was at the end of its useful life and quite inefficient, was replaced with an electrical centrifugal chilling system. The new system is more efficient and also less expensive to operate given the lower cost of electricity compared to natural gas. |
0 |
1,246,278 |
| Central Heating / Cooling Plant |
A new high-efficiency 150klb/hr boiler was installed to expand steam production capacity and partially take the place of existing lower efficiency boilers. The project also included a new system to recover heat from the boiler discharges. |
1,052,365 |
75,892 |
| Central Heating / Cooling Plant and Thermal Energy Storage |
Variable speed motors were installed on the fans used in the cooling towers and new controls and software were installed to maximize overall chiller plant efficiency. |
415,594 |
0 |
| Chem-Chem Annex |
Cleaned the AHU hot and chilled water coils and replaced existing filters with new high efficient filter media. Both buildings will now need a total building air balance and re-commissioning (planned for 2009) in order to reap the energy savings and properly operate those facilities. New project to include fume hood re-commissioning and air change rate reductions - HUGE energy saving potential in these 2 buildings. |
155,521 |
0 |
| Dutton Hall |
Energy Management Systems upgrade |
33,055 |
4,901 |
| Hutchinson Hall |
Re-commissioned HVAC air handling units (AHUs) and hot water, chilled water pumping systems to optimize performance. The building will now need a total building air balance and re-commissioning (planned for 2009) in order to reap the energy savings and properly operate that facility. New project to include fume hood re-commissioning and air change rate reductions - HUGE energy saving potential in these 2 buildings. |
5,187 |
75,070 |
| Life Sciences Addition |
Replaced old energy inefficient chiller with new Turbocor chiller technology. This new technology proved that energy use can be more than halved when operating optimally. More buildings planned to have these chillers installed to replace old technology. |
482,217 |
0 |
| Life Sciences Addition |
Re-commissioned HVAC air handling units (AHUs) and hot water, chilled water pumping systems to run more energy efficiently. Replaced old Energy Management System (EMS) DDC controllers with new Siemens Apogee technology (campus standard). Re-balanced fume hoods and AHUs including air change rate reductions to reduce overall energy consumption and properly air balance the building for optimum performance. |
146,738 |
126,974 |
| Lower Freeborn |
Re-commissioned HVAC air handling units (AHUs) and hot water, chilled water pumping systems to optimize performance and run more energy efficiently. Modified AHUs with new EMS controls and implemented time of day (TOD) scheduling to shut some AHUs down after hours. |
0 |
24,966 |
| Med Sci D |
Energy Management Systems upgrade |
36,316 |
1,027 |
| Memorial Union |
Re-commissioned HVAC air handling units (AHUs) and hot water, chilled water pumping systems to optimize performance and run more energy efficiently. Modified AHUs with new EMS controls and implemented time of day (TOD) scheduling to shut some AHUs down after hours. |
49,895 |
58,316 |
| Meyer Hall |
Converted the office building AHU fan motors with Variable Frequency Drives (VFDs) for better, more efficient performance. Added time of day scheduling to shut down AHUS after hours. Added an air conditioning unit (ACU) for computer room operations separate from main AHUs. |
195,226 |
11,444 |
| Mondavi Parking Structure |
The existing lights were replaced with high-efficiency bi-level lights. The new lights use less energy than the old lights at full power. Moreover, the lights are set to dim when people and cars are not nearby to further reduce power use. |
14,589 |
|
| MRAK Hall |
Re-commisioned all AHUs and pumping systems. Added new 2-way temperature control valves (TCVs) for new variable pumping scheme. Converted AHUs & HWS/ChWS pumps from constant volume to variable volume operation to reduce overall energy use & enhance energy efficeint operation fo the overall facility. Added time of day scheduling (operates 6AM to 6PM) to shutdown building after hours. |
516,599 |
185,412 |
| North Parking Structure |
The existing lights were replaced with high-efficiency bi-level lights. The new lights use less energy than the old lights at full power. Moreover, the lights are set to dim when people and cars are not nearby to further reduce power use. |
201,775 |
0 |
| Physics / Geology |
Re-commisioned all AHUs and pumping systems. Added new 2-way temperature caontrol valves (TCVs) to all AHU coils for new variable pumping scheme. Converted roessler Hall AHU & HWS/ChWS pumps from constant volume to variable volume operation to reduce energy use. |
25,600 |
69,602 |
| Plant & Environmental Sciences |
Re-commissioned air handling units (AHUs) and hot water, chilled water pumping systems to run more energy efficiently. Re-balanced fume hoods and AHUs including air change rate reductions to reduce overall energy consumption and properly air balance for optimum performance. |
132,742 |
89,077 |
| Primate |
The existing blower used to extract gas from the landfill for Primate boiler consumption was replaced with a more-efficient variable speed system. |
0 |
17,597 |
| Robbins Hall |
Converted hot and chilled water pumps (both sides of the building - N &S mechanical rooms) from constant volume to variable volume pumping to reduce energy use and optimize performance. Replaced AHU coil TCVs for new variable volume pumping scheme. |
5,257 |
0 |
| Sciences Lab |
Install Occupancy Sensors |
780,732 |
131,495 |
| Shields Library |
Re-commisioned all AHUs and pumping systems. Added new 2-way temperature control valves (TCVs) for new variable pumping scheme. Converted AHUs & HWS/ChWS pumps from constant volume to variable volume operation to reduce overall energy use & enhance energy efficeint operation fo the overall facility. Added time of day scheduling (operates 6AM to 6PM) to shutdown building after hours. |
560,000 |
4,665 |
| Shields Library |
Re-commisioned all AHUs and pumping systems for optimum performance and nergy efficiency. Replaced old Energy Management System (EMS) DDC controllers with new Siemens Apogee technology (campus standard). Added occupancy sensors to all book stack areas to reduce lighting when not occupied. Added new lighting control panels to old electrical panels and tied into EMS. Added time of day scheduling to shutdown building after hours and reduce overall energy consumption. |
1,161,973 |
0 |
| Solano & Orchard Park |
Housing Dept. project - Replace old outdated AC units with new ones for all apartments. |
159,472 |
0 |
| Tercero Dining |
Housing Dept. project - Replaced kitchen hood fan with VFD controls. |
275,265 |
8,856 |
| Traffic Lights |
The traffice signals owned and maintained by the campus were retrofit with high-efficiency LED lights. |
|
|
| Tupper Hall |
Re-commissioned air handling units (AHUs), replaced supply fan motors and added VFDs to run the facility more energy efficiently. Re-balanced fume hoods and AHUs including air change rate reductions to reduce overall energy consumption and properly air balance the entire supply side of the building Re-commissioned the HVAC hot water, chilled water pumping systems. Next cycle will require a project to replace the exhaust fan system to match the supply side and re-balance the building for optimum performance and energy efficiency. |
1,284,434 |
171,325 |
| Vet Med Teaching Hospital |
Re-commissioned HVAC air handling units (AHUs) and hot water, chilled water pumping systems to optimize building performance and run the facility more energy efficiently. |
24,319 |
50,028 |
| Wastewater Treatment Plant: |
The motors used to aerate wastewater during treatment were modified to run at variable speeds, with the speed set based on oxygen levels in the tank. These upgrades, which were primarily funded through a state grant, greatly reduced the power required for treatment. |
560,000 |
|
| Wickson Hall |
Energy Management Systems upgrade |
14,011 |
795 |
| Various |
Installed electrical meters on 122 buildings |
|
|
| Various |
Installed natural gas meters on 33 buildings |
|
|
| Various |
Installed steam meters on 38 buildings |
|
|
| Various |
Installed chilled water meters on 57 buildings |
|
|
| Various |
Installed water meters on 56 buildings. |
|
|
| |
TOTALS |
8,504,657 |
2,799,065 |
