I'm wondering what performance period would be acceptable for calculating the leakage rate (lbs of refrigerant added and over what time frame) for this credit. For instance, does the period over which the leakage rate was calculated also have to end within 30 days of all other credits? Or can the leakage rate be based on, say, the first 6 months of a 1 year performance period.
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Ben Stanley
Senior Sustainability ManagerWSP - Built Ecology
LEEDuser Expert
250 thumbs up
December 30, 2013 - 4:53 pm
Hi Emily,
Based on the v5 form, the leakage rate needs to be annualized rate and so the best would be to see how much leakage was experienced in the past year. I don't think extrapolating partial year data would typically work since we're required to report actual leakage rates.
American University
SustainabilityAmerican University
56 thumbs up
January 2, 2014 - 10:49 am
Ok - say I only have data for the amount of refrigerant added over a period longer than one year. Is it acceptable to extrapolate from that to a period of a year while maintaining the same actual leakage rate? Example: 100 lbs added after 18 months = 67 lbs after 12 months?
American University
SustainabilityAmerican University
56 thumbs up
January 3, 2014 - 12:17 pm
Sorry, I think I got it. If no refrigerant was added in the last year, we can just use the 0.5% default leakage rate. Correct?
Ben Stanley
Senior Sustainability ManagerWSP - Built Ecology
LEEDuser Expert
250 thumbs up
March 10, 2014 - 11:01 am
That's right, if there was no refrigerant leakage in the past year then you can use the 0.5% default. You'll need to include a narrative along with the credit indicating that the leakage was tracked and there was no refrigerant added.