Overall Rating Gold
Overall Score 69.72
Liaison Roxane Beigel-Coryell
Submission Date March 3, 2023

STARS v2.2

California State University, Channel Islands
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 5.62 / 6.00 Roxane Beigel-Coryell
Sustainability & Energy Manager
Facilities Services
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 8,712,565 Kilowatt-hours 29,727.27 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 1,699,576.75 Kilowatt-hours 5,798.96 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 29,764 MMBtu
Imported steam, hot water, and/or chilled water 1,032 MMBtu

Total site energy consumption, performance year:
66,322.23 MMBtu

Gross floor area of building space, performance year:
1,337,183 Gross square feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 138,557 Square feet
Healthcare space 2,124 Square feet
Other energy intensive space 5,794 Square feet

EUI-adjusted floor area, performance year:
1,624,339 Gross square feet

Degree days, performance year:
Degree days
Heating degree days 1,954.60 Degree-Days (°F)
Cooling degree days 999.90 Degree-Days (°F)

Total degree days, performance year:
2,954.50 Degree-Days (°F)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period July 1, 2021 June 30, 2022

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

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 10,197,107 Kilowatt-hours 34,792.53 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 6,006.60 MMBtu
Imported steam, hot water, and/or chilled water 107,941.40 MMBtu

Total site energy consumption, baseline year:
148,740.53 MMBtu

Gross floor area of building space, baseline year:
880,862 Gross square feet

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period July 1, 2008 June 30, 2009

A brief description of when and why the energy consumption baseline was adopted:
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Source-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.05 MMBtu per square foot 0.09 MMBtu per square foot
Baseline year 0.17 MMBtu per square foot 0.25 MMBtu per square foot

Percentage reduction in total source energy consumption per unit of floor area from baseline:
62.05

Documentation to support the performance year energy consumption figures reported above:
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A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
CSU Channel Islands (CSUCI) employs several strategies to influence shifts in individual attitudes and practices in regard to energy efficiency. The university uses social media accounts, primarily on Instagram, to share useful tips and strategies to reduce energy consumption. These tips and other posts about the value of saving energy are shared across several profiles to reach a broad audience of students, employees, and other campus stakeholders. The university also has two greenscreens that are used to post energy efficiency tips. Additionally, the sustainability office hosts regular workshops, meetings, and other training opportunities where participants learn about energy efficiency and discuss strategies.

A brief description of energy use standards and controls employed by the institution:
CSUCI uses virtual timers in the Building Automation System (BAS) to control hours of operation. A BAS is a computerized, intelligent network of electronic devices, designed to monitor and control mechanical and lighting systems in a building. The timer can schedule normally occupied time periods, temporary occupancy periods and also “off-schedule” time periods for holidays.

The university has also retrofitted most buildings to have occupancy sensors for lighting. Additionally, newer buildings with operable windows have control settings to turn off HVAC to rooms that have open windows to reduce energy use.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
CSUCI has LED light fixtures that illuminate the exterior columns along Santa Cruz Village that face the South Quad, and light the signature Bell Tower. We have started to add LED in parking lot lights and have installed LED wall packs on most of campus proper. We are systematically retrofitting existing fluorescent lighting with LED lighting. The campus recently completed lighting retrofits in the Grand Salon (event space) and Arroyo Gym (recreation center). There is also LED lighting throughout the LEED Gold Certified Santa Rosa Village housing complex. In the next several years, the university will be upgrading to LED lights in several campus buildings.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
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A brief description of co-generation employed by the institution:
The university no longer relies on cogeneration for the majority of the university's energy supply. However, the CI Power Plant located on campus property is still in operation as a peaker plant to supply electricity to the regional grid during electrcity shortages. CSUCI does not receive any electricity directly from CI Power, though the university does take waste steam from the Plant when it is operating.

The CI Power Plant Facility is a combined cycle co-generation plant. The Facility consists of an aircraft derivative gas turbine generator (the General Electric LM-2500), an unfired heat recovery steam generator (HRSG), an extraction/condensing steam turbine generator, and auxiliary equipment.

The LM-2500 gas turbine is equipped with an evaporative cooler to reduce inlet air temperature and increase plant electrical output. It normally operates at maximum continuous rated power, burning 215.2 to 223.8 million Btu per hour (lower heating value (LHV)) of natural gas to drive a generator which produces 21,489 to 22,381 KW of electric power during the six Time Of Use periods established by Southern California Edison (SCE). Water injection is used to reduce NOx emissions to 42 parts per million dry volume-referenced at 15% 02 (ppmdv).

The system is currently dispatched under a Resource Adequacy Contract with SCE. Annual fired hours are anticipated to be less than 200 hours with an availability of 98%. The system is forecasted to be available for dispatch for 8520 hours per year with 120 hours of scheduled maintenance and 120 hours of unscheduled outages.

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
CSUCI controls its use of energy in buildings with a web-based building management system. It is comprised of a network of communication devices and building controllers located throughout each building and mechanical space. The function of these controls is to schedule the occupied times, operational set points, and temperatures for the lighting and ventilation systems. The campus is able to coordinate the time of use (schedule) of the buildings with our customers for the general class times and periods of use. This way the lights and HVAC systems will be off when nobody is around.

This system uses some of the latest technology using a centralized web-based server. This server is the central access to all of the buildings from anywhere there is internet access. This allows adjustment to the system from home without relying on someone driving out to the campus. This creates better customer support and uses no fuel. This system automatically collects data in the form of trend logs for system diagnostics and analysis of energy usage. This system also has built in programmable logic that responds to the ambient outside air condition to allow the use of “free cooling” when possible. This creates opportunities for the larger cooling/heating equipment to remain idle when certain conditions are met. We have currently been able to quantify electrical savings created by the energy management system by comparing one year to the next, using the data from the trend logs.

CSUCI also takes care to prioritize energy efficient appliances and equipment when replacing units on campus. Facilities Services works with the procurement department and Information Technology (IT) to ensure they are aware of the standards to purchase Energy Star Certified and EPEAT Certified equipment. They have also sent reminders out to the campus community to ensure individual purchasers are informed of the campus standards for equipment purchases.

Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
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Data source(s) and notes about the submission:
The university transitioned from steam to natural gas as a primary heating source in April 2020, resulting in reduced EUI.

The university's on-site solar array generates more power than the campus consumes during the day. The excess energy is exported to the grid. The university retains rights to all environmental attributes. The total renewable energy reported in OP-5 differs from OP-6 because the energy in OP-5 is the actual renewable energy consumed on site, while OP-6 reflects the total energy generated by the university's solar array.

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.