Whole Building Energy Use BenchmarkingJordan Sager, LEED AP, CEM UCSB Utility & Energy Services

UC Building Energy Benchmarks by Campus Lab/Complex Space

Campus

Annual Electricity Maximum Power Max. Chilled Water Annual Thermal Max. Thermal

kWh/gsf/yr W/gsf tons/kgsf therms/gsf/yr therms/hr/kgsf

Includes prorated part of plant use and site lighting

Includes prorated part of small peak (pumping) load at plant Load on plant Includes prorated part of

plant useIncludes prorated part of

plant use

Benchmark 50% Target Benchmark 50% Target Benchmark 50%

Target Benchmark 50% Target Benchmark 80%

Target

Berkeley 36 18.0 7.6 3.8 N/A N/A 1.83 0.92 0.43 0.34

Davis 38 18.9 6.3 3.1 4.7 2.4 1.83 0.91 0.43 0.34

Irvine 38 18.8 5.6 2.8 4.2 2.1 1.78 0.89 0.43 0.34

Los Angeles 37 18.5 5.4 2.7 4.1 2.0 1.79 0.89 0.43 0.34

Merced 39 19.3 6.4 3.2 4.8 2.4 1.82 0.91 0.43 0.34

Riverside 38 19.1 6.3 3.1 4.7 2.4 1.80 0.90 0.43 0.34

San Diego 37 18.4 5.3 2.7 4.0 2.0 1.78 0.90 0.43 0.34

San Francisco Parnassus 36 18.0 5.2 2.6 3.9 1.94 1.84 0.92 0.43 0.34

San Francisco Mission Bay 36 18.1 7.6 3.8 N/A N/A 1.84 0.92 0.43 0.34

Santa Barbara 36 18.1 5.3 2.7 4.0 2.0 1.81 0.91 0.43 0.34

Santa Cruz 36 18.0 7.6 3.8 N/A N/A 1.85 0.93 0.43 0.34

UC Building Energy Benchmarks by Campus Housing Non-complex Space

Campus

Annual Electricity Maximum Power Max. Chilled Water Annual Thermal Max. Thermal

kWh/sf/yr W/sf tons/ksf therms/sf/yr therms/hr/gsf

Includes prorated part of plant use and site lighting

Includes prorated part of small peak (pumping) load at plant Load on plant Includes prorated part of

plant useIncludes prorated part of

plant use

Benchmark 50% Target Benchmark 50% Target Benchmark 50%

Target Benchmark 50% Target Benchmark 80%

Target

Berkeley 7.8 3.9 2.1 1.07 N/A N/A 0.30 0.15 0.18 0.14

Davis 9.3 4.7 2.3 1.16 1.75 0.88 0.29 0.15 0.18 0.14

Irvine 9.1 4.5 1.79 0.90 1.35 0.67 0.23 0.12 0.18 0.14

Los Angeles 8.6 4.3 1.60 0.80 1.20 0.60 0.24 0.12 0.18 0.14

Merced 10.0 5.0 2.4 1.21 1.82 0.91 0.28 0.14 0.18 0.14

Riverside 9.7 4.9 2.3 1.16 1.75 0.88 0.26 0.13 0.18 0.14

San Diego 8.6 4.3 1.55 0.77 1.17 0.58 0.23 0.11 0.18 0.14

San Francisco Parnassus 7.8 3.9 1.40 0.70 1.06 0.53 0.30 0.15 0.18 0.14

San Francisco Mission Bay 8.0 4.0 2.1 1.07 N/A N/A 0.30 0.15 0.18 0.14

Santa Barbara 8.0 4.0 1.55 0.77 1.17 0.58 0.28 0.14 0.18 0.14

Santa Cruz 7.8 3.9 2.2 1.11 N/A N/A 0.32 0.16 0.18 0.14

UC Building Energy Benchmarks by Campus Academic / Administrative Non-complex Space

Campus

Annual Electricity Maximum Power Max. Chilled Water Annual Thermal Max. Thermal

kWh/sf/yr W/sf tons/ksf therms/sf/yr therms/hr/ksf

Includes prorated part of plant use and site lighting

Includes prorated part of small peak (pumping) load at plant Load on plant Includes prorated part of

plant useIncludes prorated part of

plant use

Benchmark 50% Target Benchmark 50% Target Benchmark 50%

Target Benchmark 50% Target Benchmark 80%

Target

Berkeley 11.2 5.6 3.1 1.53 N/A N/A 0.21 0.10 0.12 0.10

Davis 13.3 6.7 3.3 1.66 2.5 1.25 0.20 0.10 0.12 0.10

Irvine 13.0 6.5 2.6 1.28 1.93 0.96 0.16 0.081 0.12 0.10

Los Angeles 12.3 6.2 2.3 1.14 1.72 0.86 0.17 0.085 0.12 0.10

Merced 14.3 7.2 3.5 1.73 2.6 1.3 0.20 0.10 0.12 0.10

Riverside 13.9 6.9 3.3 1.66 2.5 1.25 0.18 0.09 0.12 0.10

San Diego 12.2 6.1 2.2 1.11 1.66 0.83 0.16 0.08 0.12 0.10

San Francisco Parnassus 11.1 5.6 2.0 1.00 1.51 0.75 0.21 0.11 0.12 0.10

San Francisco Mission Bay 11.4 5.7 3.1 1.53 N/A N/A 0.21 0.11 0.12 0.10

Santa Barbara 11.5 5.7 2.2 1.11 1.66 0.83 0.19 0.10 0.12 0.10

Santa Cruz 11.1 5.6 3.2 1.58 N/A N/A 0.23 0.11 0.12 0.10

UCSB 2013 Benchmarks in Relation to UC Benchmarks and Targets

Annual Electricity Peak Electricity Peak Chilled Water

Annual Thermal Peak Thermal0%

40%

80%

120%

160%

200%

Complex (Lab) Housing Non-complex Academic

Perc

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f 199

9 U

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ark

Target at UC Merced for new buildings – 50% of Benchmark

Basis of Design: gas-fired condensing boiler plantEnergy Conservation Measures:• Ventilation heat recovery from bldg exhaust• Passive solar heat optimization during heating season• Minimization of reheat in labs through application of

chilled beams and dynamic reset of ventilation supply temp.

Heating

Basis of Design: UCSB chilled water loop (.065kW/ton)Energy Conservation Measures:• Specification of low SHGC glazing• External shading• Thermal mass (incl. phase change materials)• Active chilled beams in lab spaces• Operable windows in office and administration areas

Cooling

Energy Conservation Measures:• Demand-controlled ventilation• VAV fume hoods • Air quality sensing in wet labs• Natural ventilation in offices, admin areas, seminar

rooms

Ventilation

Envelope Thermal PropertiesEnvelope Component Non-Res, CZ6 Basis of Design

Roof: low sloped [Btu/h x ft2 x °F] U-0.075 U-0.048

Ext walls: metal framed [Btu/h x ft2 x °F] U-0.098 U-0.069

Floors/soffits [Btu/h x ft2 x °F] U-0.071 U-0.052

Window assembly: north [Btu/h x ft2 x °F]/SHGC U-0.077/0.61 U-0.065/0.25

Window assembly : non-north [Btu/h x ft2 x °F]/SHGC U-0.077/0.34 U-0.065/0.25

Lighting Power Density and Occupancy Values

Equipment Power Densities

Space Type Equipment W/ft2 Natural Ventilation

Break-out 0.0 Yes

Corridor 0.0 Yes

Lecture Hall 1.0 No

MEP Room 0.2 No

Office 1.0 Yes

Restroom 0.0 No

Seminar 1.0 Yes

Stair 0.0 Yes

Based on ASHRAE assumed EPDs.

Lab Type Equipment Peak W/ft2 Natural Ventilation

Wet Labs 5.3 No

Computer Labs 3.7 Yes

Optics 7.5 No

Electronics 7.5 Yes

Equipment Power Densities

Based on metered 120/208v receptacle power demand data from existing laboratories on the UCSB campus.

Power Monitoring - John Bowers Laboratory, UCSB Engineering Science Building

PRED

ICTE

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http://energy.ucsb.edujordan.sager@pf.ucsb.edu