I have spikes when running E+ example file 'RefBldgOutPatientNew2004_Chicago.idf'. I think the problem is caused by HVAC sizing. The problem is within outputvariable: 'Whole Building:Facility Total HVAC Electric Demand Power W '
The run data is set to 7/01, timestep is 20, and weather data is 'USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.epw'.
Is there any way of avoiding such spikes?
I am sorry I don't have enough points to post the figures.