I am trying to calibrate a passive house energy model using hourly measured data as input (interior and exterior temperature, lightings, electric equipment, infiltration). However, when I compare the simulated results with the monitoring data (hourly values for energy consumption) the variation is quite high. When I compare the monthly values, the variation is acceptable. Has anyone managed to calibrate a building energy model to hourly values? What are the input parameters that I should pay attention to?

I mention that the house has mechanical ventilation unit with heat recovery, air to water heat pump for heating and cooling and a buffer for hot water storage, solar collector for DHW and a boiler for storage. The heating and cooling is distributed through fan convecters installed in the ceiling.
The main objects I used for the systems in my model are: AirTerminal:SingleDuct:VAV:NoReheat, ZoneHVAC:PackagedTerminalAirConditioner, Coil:Cooling:DX:SingleSpeed and Coil:Heating:Water, HeatExchanger:AirToAir:FlatPlate For the heat pump I used Coil:WaterHeatingAirToWaterHeatPump:Pumped with WaterHeater:HeatPump:PumpedCondenser and WaterHeater:Mixed.