SUSTAINABLE BUILDINGS
Asset Classes
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Offices
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Enclosed Shopping Centres
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Open Air Retail
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Light Industrial
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Multi-Unit Residential Buildings
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Health Care Facilities
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Universal
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Focus Area
Topic
Question #
Question
Applicability
Answer
Indicate which range is representative of your building’s most recent WUI (L/ft2):
- HOSPITALS:
- 250 L/ft2 and higher
- 200 to <250 L/ft2
- 150 to <200 L/ft2
- 100 to <150 L/ft2
- Lower than 100 L/ft2
- MEDICAL OFFICES:
- 125 L/ft2 and higher
- 100 to <125 L/ft2
- 75 to <100 L/ft2
- 50 to <75 L/ft2
- Lower than 50 L/ft2
- LONG TERM CARE:
- 150 L/ft2 and higher
- 115 to <140 L/ft2
- 80 to <115 L/ft2
- 50 to <80 L/ft2
- Lower than 50 L/ft2
- HOSPITALS:
Description
Benchmarking informs organizations about how much water they use and where they use it. It allows organizations to identify opportunities to optimize water use and reduce operating costs.
A building’s annual water consumption can be normalized to a water use intensity (WUI) on the basis of floor area or occupancy to facilitate performance comparison against similar properties, similar to energy performance benchmarking using EUI.
Requirements
To determine the whole building water use intensity, WUI (L/ft²):
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- Enter whole building water-use data under the Benchmarking section of the BOMA BEST portal (bomabesthub.com) or in the Energy Star Portfolio Manager portal
- Alternatively, calculate the WUI by entering the data in RealPac’s NWUI Tool
- If whole-building water use is calculated by adding data from different bills or sub-meters, provide a brief narrative describing the methodology applied. Show how the 12-month total use was calculated
- If any spaces were excluded, provide a brief narrative describing the methodology applied
- For any sub-meters referenced, provide details, such as make, model, location, photo and year of installation
- Indicate whether any water is collected and used on-site and whether that use has been sub-metered
Documentation
- Table showing most recent 12-months of whole building water use
- Calculation method used to determine the WUI
Adapted BB3 Question
Question 02.02.01 — Do you benchmark water performance using either the BOMA BEST or ENERGY STAR Portfolio Manager portal?
Suggested Lead
References
Crosswalk
TBD
Other Notes
Water consumption data derived from landlord-installed meters, read manually each month is acceptable.
WUI is often measured on the basis of floor area but water consumption per occupant may be more appropriate if occupancy data is available.
Scoring
2, 3, 4, 5, or 6 Points