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
Is there a plan to phase out any of the high global warming potential (GWP) refrigerants in use at the building or have any already been phased out?
Applicability
Applicable to all buildings (systems or equipment in the owner or landlord’s control)
Answer
Select which of the following high GWP refrigerants are planned for phase-out:
- R12
- R22
- R410a
- R407c
- R134a
- Halon or Halocarbon Fire Suppressants greater than 10 kg
- Other (include refrigerant name and GWP)
- None
Description
Refrigerants contribute to climate change by trapping heat in the atmosphere similar to CO2. The global warming impact of a refrigerant is referred to as Global Warming Potential (GWP), a metric that measures a substances impact relative to CO2. When a refrigerant is released to the atmosphere it contributes to a building emissions. This often occurs when leaks develop, equipment is damaged, and during decommissioning. As refrigerants are phased out equipment will require decommissioning and replacement with new equipment
For comparison, the common refrigerant R410A has a GWP 2,088, meaning the warming effect it has when released to the atmosphere is 2,088x more than that of CO2
Requirements
- Indicate which type of refrigerants have already been phased out
- Indicate which type of refrigerants are currently being used in the building
- Where high GWP refrigerants are being used please describe the transition plan
Documentation
- Evidence of refrigerants already phased out
- Refrigerant Phase-out Plan
Adapted BB3 Question
Suggested Lead
References
Crosswalk
Other Notes
The following refrigerants are considered to have medium to low GWP compared to those with high GWP listed above:
- R32 (medium GWP)
- R513a (medium GWP)
- R1234ze (low GWP)
- R1234yf (low GWP)
- R514a (low GWP)
- R1233zd (low GWP)
- Ammonia (R717) (low GWP)
- Propane (R290) (low GWP)
- CO2 (R744) (low GWP)
- Water (R718) (low GWP)
Low emissions refrigerants have a GWP under 600 kgCO2e/m2
Scoring
3 Points