Energy Stewardship Program TAMU – College Station
Energy Stewardship Team Energy Stewardship Team 2 Charlie Shear ‐ Supervisor Energy Stewardship Jack Cook Don Fazzino Energy Steward Energy Steward Keith Bornmann Betty Morgan Energy Steward Energy Steward Johnny Smith Dr. Jorge Lara Energy Steward Energy Steward
ESP Efforts ESP Efforts HVAC Scheduling ESCO Lighting PC / Servers Fume Hoods Building System Repairs Energy Opportunity Assessment Program Building Use Adjustments Holiday Break Adjustments Proactive Campus Involvement Events Reporting
HVAC Scheduling HVAC Scheduling Second Floor of 1800 GSC T Stat Rooms Space Category Proposed OCC Proposed AHU AHU Schedule Box Name Room Description Proposed OCC Schedule Proposed Unocc Schedule Notes Room/Location Served Temp Unocc Temp 600 pm ‐ 600 am (M) (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 5 2823 2821 Staff Office Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 5 2823 2822 Staff Office Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 5 2823 2823 Office Storage Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 5 2823 2824 Staff Office Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) General Administrative (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 4 2820 2820 Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) Office (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 19 2826B 2826A Support Office Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) Office Equipment (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 19 2826B 2826B Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) Support (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend 600 pm ‐ 600 am (M) Waiting/Interview (M) 6:00 AM ‐ 7:00 PM 0 CFM during unoccupied AHU 2 ‐ 1 (M ‐ F) 6:00 AM ‐ 7:00 PM FVV2 ‐ 19 2826B 2826C Offices 70h ‐ 75c 60h ‐ 85c 600 pm ‐ 700 am (T ‐ F) Room (T ‐ F) 7:00 AM ‐ 7:00 PM hours All Weekend
Initial Results Initial Results General Services Complex 1800 Chilled Water Consumption (mBtu)
Initial Results Initial Results Chemistry Building Addition 376 Chilled Water Consumption (mBtu)
ESCO ESCO
Lighting Lighting
PC / Servers PC / Servers
Fume Hoods Fume Hoods
Fume Hoods Fume Hoods
Building Systems Repairs Building Systems Repairs
Energy Opportunity Assessment Energy Opportunity Assessment Program Program Impl. Start Impl. End Work Order Best Practice Reference Bldg Bldg Section # Type Observation Recommendation Priority Status UES Notes ESL Notes Date Date Number The set back also needs to be implemented to Implemented UNOCC/OCC AHU's these units. (July 18) AHU 1 and OAHU 1 were 1,2,3,8,9,10,11 OAHU 1 Implement unoccupied schedules and/or setbacks for ‐ 1 Operations 1 27 ‐ Feb In ‐ Progress not shut down from 0 am to 6 am (based on AHU Occ./Unnoc. Mode Control MPB All of the units operate 24/7 non ‐ lab areas BAS currently implementing a more units' supply fan trending data from Aug.20 to comprehensive schedule. (Aug 21) Aug.24). The CHW loop DP set point reset is based on the max. position of cooling coil valves of AHUs and FCUs. It is observed: except of AHU ‐ 5 (100 CHW and HHW pump VFDs operate based on a constant Implement a dynamic setpoint reset for differential ‐ 2 Optimization 1 27 ‐ Jun 27 ‐ Jun Complete Implemented %), the cooling coil valves' position in other CHW Differential Pressure Control MPB loop differential pressure setpoint pressure setpoints AHUs is less than 50 %. The investigation is recommended to be conducted for AHU ‐ 5. (July 18) AHU Supply Air Temperature Areas served by the UFAD suffer from comfort issues in Raise the cold deck temperatures as per the UFAD ‐ 3 Optimization 1 MPB Control the form of, mostly, overcooling system design and reset based on cooling load indicators Waiting on schedule from ESP Terminal boxes have occupied/ unoccupied cooling and ‐ 4 Optimization 2 In ‐ Progress BAS currently implementing a more Zone Occ./Unnoc. Mode Control MPB heating setpoints but occupied/unoccupied mode switch Enable Occ/Unocc. Modes is not implemented comprehensive schedule. (Aug 21) Several AHU’s have a humidity override control for OA In ‐ Progress Moved all associated RA sensors as The control sequence needs to be optimized. Move RH Sensor to RA stream. Further optimize AHU Relative Humidity Control MPB ‐ 5 Deficiency intake using a humidity sensor installed in the 1 1 ‐ Apr sequence of operation and setpoints as appropriate. described. (Aug 10) downstream of the cooling coil (1) 17 boxes are missed from the list to reduce minimum flow rate. (2) The reduced minimum VAV terminal boxes, mostly serve electrical rooms and flow rate value dosen't match ASHRAE Standard Optimize min flow settings while maintaining building Zone Minimum Flow Control MPB ‐ 6 Optimization tele/data rooms, have the minimum air flow ratio of 30% 1 26 ‐ Jun 26 ‐ Jun Complete Reduced flows to ELECT/TELE DATA rooms pressurization. 62.1 requirement, low space temperature was or more observed: 67.5 oF in ELE Room 163, 71.2 oF in Tele Room 161, 65.7 oF in Tele Room 532, etc. AHU Operating Mode Transition The OAT dead band for winter and summer mode switch Optimize the sequence of operation based on building ‐ 7 Optimization 1 MPB Control is 50°F to 52°F and does not consider space conditions heating & cooling needs and leverage OA conditions Please provide specific room numbers The photocell and the dimmable lighting switch are where this is occuring. All the exterior rooms in both Institute Building Zone Day ‐ Lighting Control MPB ‐ 8 Deficiency available in each perimeter room, but do not appear to be Determine cause and correct 2 26 ‐ Jun 6 ‐ Aug Complete Checked a couple of sensors and they and Department Building. (July 18) operating properly worked properly. Building entrance area has sufficient day ‐ lighting to keep Install photocell control to override lights off when Lighting Retrofit MPB ‐ 9 Retrofit 3 Place on future ECRM funding list. entrance lighting off on sunny days sufficient day light is present
Building Use Adjustments Building Use Adjustments
Building Use Adjustments Building Use Adjustments mBtu Francis Hall 476
Holiday Break Adjustments Holiday Break Adjustments
Proactive Campus Involvement Proactive Campus Involvement
Proactive Campus Involvement Proactive Campus Involvement
Events Events
Reporting Reporting 350 Richardson Petroleum Building: Engineering Building 330 Building Number: 387 Energy Steward: Keith Updated July 1, 2012 310 Square Footage 113,700 Baseline EUI: 346 290 EUI Goal: 277 Current EUI: 200 Annual EUI (mBtu) % Reduction: 42.2% 270 250 TC: 230 EC: OC: EUI: 210 190 Technology coefficient: Efficiency coefficient: Technology Points Efficiency Points DDC to all pumps Occ/unocc schedule DDC to all AHUs AHU schedule DDC to all exhaust Aggressive AHU schedule DDC to room level Pump schedule Occupancy sensors to lighting VAV boxes go to 0 CFM during non ‐ occupancy Occupancy sensors to TECs 75% of fume hoods closed during inspection DDC control lab ACH 90% of fume hoods closed during inspection Occupancy sensors controlling lighting Occupancy sensor controlling HVAC Occupancy sensor controlling lab ACH Opportunity coefficient: Program for occupants to turn off lighting Opportunity Points All computer labs on hibernate program Schedule office HVAC All office computers on hibernate program Schedule lab HVAC Servers do not affect AHU schedule Fume hood sash closure Control lab ACH Desktop computers sleep mode Computer labs sleep mode Servers causing HVAC issues Lighting opportunities Occ sensors tied to TECs
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