Eaves height for photovoltaic system offer

Hello,

we are currently obtaining quotes for photovoltaic systems on our hipped roof.
For this, we are supposed to specify the eaves height and ridge height.

Now I have looked at our plans and am a bit confused.
I always thought the eaves height is the "drip edge," meaning where the gutter hangs.
Why is the eaves height drawn so high up in the plans?
In the final plans (which I don’t have on hand right now), it was then indicated as 6.09 m and the ridge height as 7.99 m, so it can’t just be a one-time typo.
The top edge of the floor slab is at about 5.68. At the same height, the gutter was drawn in the final plans. That would mean the eaves height is 40 cm higher than the gutter and the roof surface is of course significantly shorter. That would mean on this already poorly suitable hipped roof, especially at the widest parts of the triangle or trapezoid, we would lose even more roof surface.
Is that correct?

Best regards,

we are currently obtaining quotes for photovoltaic systems on our hipped roof.
For this, we are supposed to specify the eaves height and ridge height. [...]
I always thought the eaves height is the "drip edge," that is where the gutter hangs.
Why is the eaves height marked so high up in the plans?

The eaves only give the height its name. However, I think that for this purpose the "actual" eaves height is meant, because what informational value would the hypothetical penetration height of the exterior wall through the roof covering have here?

because what informational value should the fictional penetration height of the exterior wall through the roof covering have here?

For us, this is the definition of building height. Maybe that is the case here as well?

For us, that is the definition of building height. Perhaps this is also the case here?

No, the building height is measured up to the ridge (which, by the way, is actually congruent with its building law "ego", unlike the eaves).

Height and pitch of the roof as well as duration of the work determine whether scaffolding is necessary. Maybe that's what it's about?

No, the building height is measured up to the ridge (which, by the way, is congruent with its building law "ego," unlike the eaves).

Not in our development plan. It is measured from the single-family house to the intersection between the rafter and the wall. The maximum ridge height then implicitly results from the allowed roof pitch (let's ignore that a house with a larger base area also becomes taller ;) ).