Williams College
OP-5: Building Energy Consumption

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• Credit Info

Figures needed to determine total building energy consumption:

	Performance Year	Baseline Year
Grid-purchased electricity	135,823 MMBtu	139,546 MMBtu
Electricity from on-site renewables	99 MMBtu	0 MMBtu
District steam/hot water (sourced from offsite)	0 MMBtu	0 MMBtu
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass)	228,959 MMBtu	261,222 MMBtu
Total	364,881 MMBtu	400,768 MMBtu

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

	Start Date	End Date
Performance Year	July 1, 2017	June 30, 2018
Baseline Year	July 1, 2004	June 30, 2005

A brief description of when and why the building energy consumption baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):
Gross floor area of building space:

	Performance Year	Baseline Year
Gross floor area of building space	2,996,585 Gross square feet	2,298,096 Gross square feet

Source-site ratio for grid-purchased electricity:
Total building energy consumption per unit of floor area:

	Performance Year	Baseline Year
Site energy	0.12 MMBtu per square foot	0.17 MMBtu per square foot
Source energy	0.22 MMBtu per square foot	0.30 MMBtu per square foot

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:
Degree days, performance year (base 65 °F / 18 °C):

	Degree days (see help icon above)
Heating degree days	7,756 Degree-Days (°F)
Cooling degree days	296 Degree-Days (°F)

Floor area of energy intensive space, performance year:

	Floor Area
Laboratory space	247,000 Square feet
Healthcare space	13,000 Square feet
Other energy intensive space

EUI-adjusted floor area, performance year:
Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
Documentation (e.g. spreadsheet or utility records) 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 (e.g. outreach and education efforts):
A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
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, e.g. combined heat and power (CHP):
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment and systems with high efficiency alternatives (e.g. building re-commissioning or retrofit programs):
The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission: