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Does ideal loads consider light/equiment heat gains

I have an openstudio V2.5.1 large office model in cold climate (heating degree days around 4000) on district heating and district cooling with almost no unmet hours. EUI 124 kwh/m2 ; TEDI 51 kwht/m2

By putting ideal loads on for all thermal zones, my heating consumption almost doubles. EUI 171 kwh/m2 ; TEDI 97 kwht/m2

What could explain this considering that my heating equipment is the same (100%) ? Maybe if the heat gains form lights, equipment, fans, pumps are not considered anymore it could make sens, but the documentation I red didn't gave me a clear answer.

Does ideal loads consider light/equiment heat gains

I have an openstudio V2.5.1 large office model in cold climate (heating degree days around 4000) on district heating and district cooling with almost no unmet hours. EUI 124 kwh/m2 ; TEDI 51 kwht/m2

By putting ideal loads on for all thermal zones, my heating consumption almost doubles. EUI 171 kwh/m2 ; TEDI 97 kwht/m2

What could explain this considering that my heating equipment is has the same efficiency (100%) ?

Maybe if the heat gains form lights, equipment, fans, pumps are not considered ~~anymore~~ in the thermal balance it ~~could~~ would make ~~sens,~~ sense, but the documentation I red didn't gave me a clear ~~answer.~~ answer on this hypothesis.