HOMER Knowledge Base

HOMER Knowledge Base

Scaling

I noticed that the results say that peak hour is 1.09 kWh when in fact peak in the input data is 1.7+ kWh.  Is this a program glitch?

 

No that's not a glitch, it's because you are scaling the data from 33 kWh/day down to 10 kWh/day.  From the profiles and the noise values you entered, the peak hourly load is actually 3.59 kW.  After scaling it is 3.59 * 10 / 33 = 1.09 kW.

If the "traditional house" you want to model has an average load of 10 kWh/d, then you are doing the right thing in scaling the load data to that value.  But if you want the average load to be 33 kWh/d then make sure you enter that value for the "Scaled annual average" in the Primary Load Inputs window.

The load data don't look quite right, actually, because the average profile is different from August to November, and then December is different again:

10366-01

At 48° latitude I doubt December would be the month with the lowest load.