| Overall Rating | Gold |
|---|---|
| Overall Score | 77.43 |
| Liaison | Elida Erickson |
| Submission Date | Feb. 28, 2022 |
University of California, Santa Cruz
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
4.04 / 6.00 |
Ellen
Vaughan Water & Climate Action Manager Sustainability Office |
Electricity use, performance year (report kilowatt-hours):
| kWh | MMBtu | |
| Imported electricity | 21,552,000 Kilowatt-hours | 73,535.42 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 252,647 Kilowatt-hours | 862.03 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 531,318 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, performance year:
Gross floor area of building space, performance year:
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 1,237,297 Square feet |
| Healthcare space | 37,854 Square feet |
| Other energy intensive space | 0 Square feet |
EUI-adjusted floor area, performance year:
Degree days, performance year:
| Degree days | |
| Heating degree days | 3,007 Degree-Days (°F) |
| Cooling degree days | 123 Degree-Days (°F) |
Total degree days, performance year:
Start and end dates of the performance year (or 3-year period):
| Start date | End date | |
| Performance period | Jan. 1, 2019 | Dec. 31, 2019 |
Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
Electricity use, baseline year (report kWh):
| kWh | MMBtu | |
| Imported electricity | 41,941,792 Kilowatt-hours | 143,105.39 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 0 Kilowatt-hours | 0 MMBtu |
Stationary fuels and thermal energy, baseline year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 423,126 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, baseline year:
Gross floor area of building space, baseline year:
Start and end dates of the baseline year (or 3-year period):
| Start date | End date | |
| Baseline period | Jan. 1, 2006 | Dec. 31, 2006 |
A brief description of when and why the energy consumption baseline was adopted:
2006 is the first year we have complete energy data.
Source-site ratio for imported electricity:
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.10 MMBtu per square foot | 0.13 MMBtu per square foot |
| Baseline year | 0.12 MMBtu per square foot | 0.18 MMBtu per square foot |
Percentage reduction in total source energy consumption per unit of floor area from baseline:
Documentation 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:
The campus has several student and staff related initiatives to keep campus occupants aware of energy efficiency and sustainability practices. The Sustainability Office manages several student programs providing outreach to students to save energy at their dorms, apartments, and work and study spaces. The student-run Green Labs programs focuses on making individuals implement best energy efficiency practices in labs while the Green Office Certification program focuses on offices.
A brief description of energy use standards and controls employed by the institution:
UCSC runs most major building systems on a demand-based scheduling system, that allows large spaces to idle at lower airflow and temperature setting when unoccupied. Our campus standard for occupied spaces is a temperature range of 68-74 degrees F, and when unoccupied, these spaces relax to setpoints of 60-80 F. This allows the campus to have many spaces use less energy during the regular operating hours of the buildings when unoccupied. Vacancy sensors are also used in lighting applications, and are beneficial in reducing lighting loads in hallways, book stacks, and offices.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
UCSC is currently replacing all major lighting systems with LED-based fixtures. We have completed the upgrade of all major street and path lighting to LED. We are now moving across the campus, converting buildings to interior LED lighting systems that meet the latest California Title 24 code. This includes dimming systems and vacancy control systems to minimize W/sq. ft. further in our interior spaces. All new construction is being designed with LED-based lighting systems where applicable, which results in LED-based interior and exterior-based lighting, with few exceptions.
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:
UCSC upgraded their 4.4 MW gas turbine cogen unit in August 2015. It is fully operational and it replaces an old 2.6 MW, dual-fueled (natural gas and diesel), internal combustion engine. It was retired in December 2013. This new engine supplies electricity and heating for hot water to the campus core facilities, primarily research facilities, and has improved power reliability/security.
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
UCSC has a system-wide energy partnership program between the major state utilities and the higher education campuses in California. The program results in a consistent series of energy efficiency retrofits to replace legacy equipment and systems with energy-efficient alternatives. We also leverage our deferred maintenance and major renovation programs with this partnership to renovate space with more energy-efficient lighting, HVAC, and control systems.
UCSC has implemented the latest technology in building control and building analytics. We are currently implementing control and analytics upgrades to have automated building diagnostics.
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
Scope in Pre-3
HDD and CDD: data from Energy Star Protocol: https://portfoliomanager.energystar.gov/pm/degreeDaysCalculator
Baseline year data was taken from California Climate Action Registry Report - (TCR before they changed their name)
Scope in Pre-3
HDD and CDD: data from Energy Star Protocol: https://portfoliomanager.energystar.gov/pm/degreeDaysCalculator
Baseline year data was taken from California Climate Action Registry Report - (TCR before they changed their name)
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 or simply email your inquiry to stars@aashe.org.