Overall Rating Platinum
Overall Score 85.50
Liaison Breeana Sylvas
Submission Date Feb. 28, 2022

STARS v2.2

University of California, Merced
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 4.51 / 6.00 Breeana Sylvas
Assistant Director
Sustainability
"---" indicates that no data was submitted for this field

Part 1. Site energy use per unit of floor area

Performance year energy consumption

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 26,863,137 Kilowatt-hours 91,657.02 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 10,769,299 Kilowatt-hours 36,744.85 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 99,244.70 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
227,646.57 MMBtu

Performance year building space

Gross floor area of building space, performance year:
2,325,086 Gross square feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 645,219 Square feet
Healthcare space 35,584 Square feet
Other energy intensive space 140,468 Square feet

EUI-adjusted floor area, performance year:
3,827,160 Gross square feet

Performance year heating and cooling degree days 

Degree days, performance year:
Degree days
Heating degree days 2,498 Degree-Days (°F)
Cooling degree days 1,578 Degree-Days (°F)

Total degree days, performance year:
4,076 Degree-Days (°F)

Performance period

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period Jan. 1, 2019 Dec. 31, 2019

Metric used in scoring for Part 1

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

Part 2. Reduction in source energy use per unit of floor area

Baseline year energy consumption

STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 16,032,034 Kilowatt-hours 54,701.30 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 52,130 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
106,831.30 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:
833,413 Gross square feet

Baseline period

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period June 1, 2006 July 31, 2007

A brief description of when and why the energy consumption baseline was adopted:
This baseline 2006-2007 was established to reflect the most accurate campus utility usage available after the campus opened in 2005.

Source energy

Source-site ratio for imported electricity:
3.14

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.10 MMBtu per square foot 0.18 MMBtu per square foot
Baseline year 0.13 MMBtu per square foot 0.27 MMBtu per square foot

Metric used in scoring for Part 2

Percentage reduction in total source energy consumption per unit of floor area from baseline:
32.15

Optional Fields 

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 Green Labs and Green Offices programs both support shifting individual attitudes and practices toward conservation and energy use reduction. Green Labs works with individual laboratories and researchers to assess areas of improvement in research efficiency and targeted natural resource use. Green Offices recognizes departments, units, and offices that have integrated sustainability practices into their work space.

A brief description of energy use standards and controls employed by the institution:
Every permanent building on campus uses schedules to regulate temperatures and ventilation rates based on occupancy hours. On a weekly basis, a script has been created that automatically reviews campus schedules for events, and classes, and schedules individual building areas to come on for any event that is outside of or after weekday scheduled hours.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
The campus has moved to install all LED lighting in its buildings. In 2019 electricians did a LED street lighting retrofit totaling 49 light fixtures. LED retrofit on the high bay lighting on campus SSM totaling 22 fixtures. The campus Downtown Campus Building includes all LED lighting. In addition, facilities management worked on a LED lighting retrofit for the campus quad totaling 57 exterior lighting fixtures.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
A solar water heater is installed on the rooftop of the Science and Engineering 2 building. The campus also uses passive solar design in building windows, walls and floors to collect, store, reflect, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer.

A brief description of co-generation employed by the institution:
---

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
The campus continually monitors the commissioned systems and energy consumption of all buildings through the buildings energy management system. Central Plant control room is where all buildings are monitored by technicians on staff 24 hours a day. In addition, since all buildings are LEED certified, a full system review of building operation is performed 10 months after substantial completion to ensure it is operating as designed. A re-commissioning manual or systems manual is provided to facility staff at building turnover.

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:
The heating degree days came from https://portfoliomanager.energystar.gov/pm/degreeDaysCalculator

The gsf reflected includes all campus energy consumption including offsite facilities.

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.