
source: SBTool
Explanation
of the abbreviation "maph" in the table
above:
"Maph"
is million annual person hours of occupancy and kaph
is thousands. It is a way of normalizing
results for occupant numbers and schedule.
A
good way to clarify the idea is to talk about
two identical buildings. One has 100 consultants
working 40 hours per week, the other has a telephone
call centre with 200 people x 3 shifts, 24/7. The
first case will have 208,000 aph, the second will
have 1,752,000 aph. These can be expressed as 0.2
maph and 1.75 maph respectively which is a ratio
of 8.76:1. Of course, the second case will also involve
a much higher equipment density. All these factors
result in a much larger energy, emissions and water
footprint for the second one. So, if building 1 consumes
200 kwh per m2 per year and building 2 consumes 600
kwh per m2 per year, building 2 is still a much better
performer when normalized for occupancy.
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