Overall Rating Gold
Overall Score 78.50
Liaison Kira Stoll
Submission Date Aug. 16, 2018
Executive Letter Download

STARS v2.1

University of California, Berkeley
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 2.32 / 6.00 Kira Stoll
Director of Sustainability
Office of Sustainability
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 728,428 MMBtu 753,892 MMBtu
Electricity from on-site renewables 537 MMBtu 0 MMBtu
District steam/hot water (sourced from offsite) 884,880 MMBtu 1,074,956 MMBtu
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass) 193,807 MMBtu 225,346 MMBtu
Total 1,807,652 MMBtu 2,054,194 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year Jan. 1, 2016 Dec. 31, 2016
Baseline Year Jan. 1, 2008 Dec. 31, 2008

A brief description of when and why the building energy consumption baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):

The campus began ramping up energy efficiency efforts in 2008, making it an appropriate baseline year from which to gauge progress.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 16,284,867 Gross Square Feet 15,838,197 Gross Square Feet

Source-site ratio for grid-purchased electricity:

Total building energy consumption per unit of floor area:
Performance Year Baseline Year
Site energy 0.11 MMBtu / GSF 0.13 MMBtu / GSF
Source energy 0.22 MMBtu / GSF 0.25 MMBtu / GSF

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:

Degree days, performance year (base 65 °F / 18 °C):
Degree days (see help icon above)
Heating degree days 2,123 Degree-Days (°F)
Cooling degree days 82 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 4,020,413 Square Feet
Healthcare space 0 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
24,871,971 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
32.96 Btu / GSF / Degree-Day (°F)

Documentation (e.g. spreadsheet or utility records) to support the performance year energy consumption figures reported above:

A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency (e.g. outreach and education efforts):

The Energy Office manages energy usage campuswide to reduce energy costs, optimize building operations and provide feedback on energy usage to building occupants.

The student-run Berkeley Energy Resources Collaborative (BERC) hosts an annual energy symposium.

Residence hall competitions to reduce electricity consumption and bulb exchanges have been held.

Finally, the campus offers an online Energy Dashboard that lets anyone see up-to-date reports on building energy use across the campus.


A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):

An energy management system that controls ventilation, temperature, lights and operating hours is used in buildings on the main campus.

Strategic Energy Program: The SEP is an incentive-based partnership with our local utility, PG&E, and includes monitoring-based commissioning, new lighting and HVAC system upgrades.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

The campus installed 800 exterior LED lamps - all of the iconic exterior lampposts - replacing the existing metal halide bulbs. The wattage in these fixtures dropped from 175 to 40 watts.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:

A brief description of co-generation employed by the institution, e.g. combined heat and power (CHP):

In 2016, the cogeneration plant on the UC Berkeley campus was operated by a third party, so the electricity generated by the plant is not included here.

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment and systems with high efficiency alternatives (e.g. building re-commissioning or retrofit programs):

Berkeley has won awards for its green buildings and recommissioning efforts. The following is a case study for one of these commissioning projects: http://greenbuildings.berkeley.edu/pdfs/bp2012-mbcx-ucb.pdf

The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:

Information in this field was provided by the UC Berkeley Facilities Services department.

The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution and complete the Data Inquiry Form.