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NC-2009 WEp1:Water Use Reduction—20% Reduction

Usage per Occupancy Type

Profile picture for user Marais.Jean
Jean Marais
b.i.g. Bechtold DesignBuilder Expert
LEEDuser Basic Member
581 thumbs up

Q1) Why is Part-Time and Full-Time occupants split? It gets calculated to FTE anyway. Q2) If students are spending more than 8 hrs in the building, it would result in a larger than "number of students" FTE, but that's not how it's calculated. The student category only looks at the number of students. Q3) I understand "transients" as the deviation from the daily FTE number. Is this correct? In short, I have a detailed half hourly input for numerous occupant groups, with well grounded uneven male female ratios and I've graphed building occupation so I can see exactly where and what the peak occupation is, also for each occupancy group. That is how I came to the "transient" understanding stated above. It's the only way to make the template work to match peak occupancy.

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Tue, 11/01/2011 - 19:25

Q1) My assumption has always been that for some occupancies it is easier to get FTE data broken out that way. It is a way for the design team to fill out the form using data provided by the owner. Q2) I think you may be able to make the case that the students should be calculated differently than normal. Gender) I've gone down the road with the GBCI on uneven gender ratios and they have consistently insisted that unless the occupancy is limited to one gender that the split is 50-50. For example, you can not tell them that 70% of the nurses are female and use a 70-30 split for staff because staffing can change over time. It sounds like you have a really good handle on the building occupancy for your project. I would calculate credits based on a fair but conservative approach and provide my back up as an attachment. This has been working for us.

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