Overall Rating	Silver - expired
Overall Score	59.82
Liaison	Joanne Wong
Submission Date	Feb. 10, 2021

STARS v2.2

Mills College
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.16 / 6.00	Joanne Wong Sustainability Coordinator Campus Facilities

"---" 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	4,666,662 Kilowatt-hours	15,922.65 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	24,979.85 Kilowatt-hours	85.23 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	39,552.80 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

55,560.68 MMBtu

Performance year building space

Gross floor area of building space, performance year:

882,581 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	14,634 Square feet
Healthcare space	2,100 Square feet
Other energy intensive space	41,900 Square feet

EUI-adjusted floor area, performance year:

957,949 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	2,649 Degree-Days (°F)
Cooling degree days	82 Degree-Days (°F)

Total degree days, performance year:

2,731 Degree-Days (°F)

Performance period

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

	Start date	End date
Performance period	July 1, 2018	June 30, 2019

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:

21.24 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	5,596,162.77 Kilowatt-hours	19,094.11 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	54,517 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

73,611.11 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

955,269 Gross square feet

Baseline period

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:

Baseline is when reporting began and first climate action plan was developed.

Source energy

Source-site ratio for imported electricity:

3.14

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.06 MMBtu per square foot	0.10 MMBtu per square foot
Baseline year	0.08 MMBtu per square foot	0.12 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:

15.25

Optional Fields

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:

Outreach and education efforts, seeking energy efficiency proposals for infrastructural improvements

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:

Installation of LEDs

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

Our LEED buildings, the Lorri I. Lokey Graduate School of Business and the Betty Irene Moore Natural Sciences Building, employ passive daylight techniques by utilizing large areas of glazing that filter UV and heat gain.

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:

Transition to LEDs as current lamps reach end-of-life. Mills is currently in the investigative phase of a comprehensive campus energy audit that could result in substantial energy efficiency improvements and emissions reductions including a campus-wide LED and lighting controls upgrade. In addition we are considering on-site ground mount solar power generation that could provide up to 30% - 40% of our power needs.

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

https://inside.mills.edu/about-mills/sustainability/energy.php

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

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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.