Why Building Emission Rate Differs from Total Carbon?
The BER rating includes applicable adjustment factors..The calculation is:
BER = Cst - (1-Fe)´Cse + Fe´Fl´Clt
Electrical carbon emissions (Cse and Clt) are subject to adjustment factor Fe as follows (see L2A Table 3):
If power factor < 0.9, Fe = 1.0.
If 0.9 < power factor < 0.95, Fe = 1 - 0.01 = 0.99.
If power factor > 0.95, Fe = 1 - 0.025 = 0.975.
Lighting energy consumption is adjusted with factor F1 as follows:
If there is metering and warning of out-of-range values, Fl = 0.95, otherwise Fl=1.0.
If the power factor is set to <0.9 (Fe=1) and the 'warning and out of range' box is unticked you should get a BER that will equal the total carbon emissions(ex equip)/total floor area.
See page 45 & 46 of the PartL2 ApacheSim User guide
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