Equations and calc methods

Ricardo Filho

LEEDuser Basic Member

1 thumbs up

Project location :

Ireland

February 21, 2023

hi all,

I am doing some research on the LEED v4.1 O+M and I came across some questions regarding this credit. Anyone has any idea about possible answers?

Water efficiency

a) What is the definition of potable water? Is this annual water consumption only linked to potable water?

b) How do we calculate the gross floor area without ARC?

c) How do we calculate Weighted occupancy ? could not find example calculation anywhere

d) How do we calculate Weighted operating hours? could not find example calculation anywhere

e) Where can I find the Table 2. Operating hours adjustment factor ?

f) How do we calculate the operating hours per week to find the adjustment factor?

g) Where can I find the calculation behind the Water performance score.

Post a reply

Summer Minchew

Managing Partner

Ecoimpact Consulting

LEEDuser Expert

171 thumbs up

Wed, 04/05/2023 - 13:50

Examples to calculate Gross Floor Area, Operating hours and Occupancy are found on the LEED v4.1 O+M Reference Guide, page 14-15. https://www.usgbc.org/resources/leed-v41-om-beta-guide Table 2 Operating Hours adjustment factor is on page 30 of the above linked reference guide. Definition of potable water is listed on page 31 of the above linked reference guide.