Controlled residential ventilation: Integrate insulated attic into controlled residential ventilation

Hello everyone,
I am building a passive house, so a mechanical ventilation system is a given.
I am building diffusion-open, so humidity is not an issue that needs to be considered.
I have an attic (1.2 m high) that is within the insulation layer.
Unfortunately, my planner is no help to me, so here is the question: does / should the attic be integrated into the ventilation concept? What speaks for this? Are there compelling reasons that I am currently not seeing?

Thank you in advance for your answers.

Sure that the attic is insulated? I know from well-insulated houses that the above-roof insulation runs over the attic, but the insulation between the rafters follows the ceiling/collar beam to minimize the surface area. The attic roof is then not completely outside, but also not really within the thermal envelope. I would not include it in the [KWL], since the air quality there is absolutely irrelevant.

Hello Gerald, yes - your variant was also an idea, but in the upper ceiling I only have 22 cm, which is not enough with natural building materials. For the insulation between the rafters, I have well over 30 cm of blown-in insulation. Currently, the plan is that the hybrid inverter and the battery will be located in the attic. And they do produce quite a bit of heat. It just occurred to me that this was one reason to ventilate the attic – to get the heat out. But maybe I'll test first whether it can work without.