Overall Rating	Gold
Overall Score	68.39
Liaison	Marianne Martin
Submission Date	Sept. 22, 2021

STARS v2.2

University of Colorado Boulder
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.51 / 6.00	Ellen Edwards Energy Manager Facilities Management and Energy

"---" 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	156,081,271 Kilowatt-hours	532,549.30 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	2,547,840 Kilowatt-hours	8,693.23 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	884,279 MMBtu
Imported steam, hot water, and/or chilled water	607,896 MMBtu

Total site energy consumption, performance year:

1,425,521.53 MMBtu

Performance year building space

Gross floor area of building space, performance year:

1,204,101.10 Gross square meters

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	116,725.93 Square meters
Healthcare space	1,692.79 Square meters
Other energy intensive space	16,137.07 Square meters

EUI-adjusted floor area, performance year:

1,457,075.60 Gross square meters

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	3,305 Degree-Days (°C)
Cooling degree days	403.33 Degree-Days (°C)

Total degree days, performance year:

3,708.33 Degree-Days (°C)

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:

81.43 Btu / GSM / Degree-Day (°C)

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	131,278,722 Kilowatt-hours	447,923 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	102,658 MMBtu
Imported steam, hot water, and/or chilled water	578,657 MMBtu

Total site energy consumption, baseline year:

1,129,238 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

836,833.71 Gross square meters

Baseline period

Start and end dates of the baseline year (or 3-year period):

	Start date	End date
Baseline period	July 1, 2005	June 30, 2006

A brief description of when and why the energy consumption baseline was adopted:

The baseline year was chosen to be consistent with the Governor's Executive Orders in 2006.

Source energy

Source-site ratio for imported electricity:

3.14

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	1.18 MMBtu per square meter	2.07 MMBtu per square meter
Baseline year	1.35 MMBtu per square meter	2.42 MMBtu per square meter

Metric used in scoring for Part 2

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

14.52

Optional Fields

Documentation to support the performance year energy consumption figures reported above:

OP_5_-_Data_Tracking_Sheet_v2.1_OP0506_Energy.xlsx

A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:

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A brief description of energy use standards and controls employed by the institution:

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

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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:

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A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:

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Website URL where information about the institution’s energy conservation and efficiency program is available:

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Additional documentation to support the submission:

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Data source(s) and notes about the submission:

The baseline year data reflects a campus that had minimal to no electricity from on-site, non-combustion facilities/devices.
The performance year data reported was provided from calendar year 2019. The institutional data provided in PRE4 is up to date (Spring 2021)

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.