of the abbreviation "maph" in the table above:
is million annual person hours of occupancy and kaph
is thousands. It is a way of normalizing results
for occupant numbers and schedule.
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.