Optimal size and position of the technical room

Hello everyone,

we are currently planning the floor plan of our basement.
In doing so, I wondered how large and where the "technical room" should ideally be.
In the technical room, I imagine the following devices/functions: main connections, meters, electrical wiring (fuses), heat pump (brine heat pump), buffer tank, satellite and network cabling, central controlled residential ventilation.
What room size would you recommend?

Regarding the location:
My first thought was that the room should be on the street side, since the main connections come from there.
For the wiring (electrical, satellite, network) and the controlled residential ventilation, however, a central position is probably advantageous to have shorter lines.
The controlled residential ventilation, on the other hand, needs fresh air and exhaust air openings that should be as far apart as possible. Here, a room in a corner of the house might be suitable.
For the fresh air, I have read that it should not be on the south side, as otherwise too much warm air is drawn in during summer. I do not want to have the exhaust air directly next to the front door or the terrace either.

How can all these conditions be met with one room? Or is it more sensible to place the controlled residential ventilation separate from the technical room?

It cannot be answered in general because it also depends on the technology/house. For example, controlled residential ventilation can be a ceiling unit or a large floor-standing unit. Depending on the desired performance and volume. Electrical installation can be sparse or KNX + Dali + 1-wire... Inverter for photovoltaics? Room facing the street is optimal due to the connections. If there is space on the property, you can position the supply and exhaust air of the controlled residential ventilation wherever you want. Just place it around the house.

There are several considerations. For us, the technical room would have been optimal on the access side. However, then we would have had an unsightly corner in the kitchen and bedroom (southeast) for the chimney and the pipes of the controlled ventilation system. Now the technical room is in the northeast and the corner is in the utility room (without technology, only laundry and storage) and bathroom. Only the house connections are then still in the basement room towards the access, but they don't really bother me in the workshop basement either.

A bus system (KNX or similar) is not planned. Whether photovoltaic or not, I am still undecided. However, I would like to reserve space for the inverter(s). Do you think that 10 m² would be enough space?

Do you already know which devices you want? As mentioned, there are big differences in space requirements depending on the version. Ten square meters don’t feel very generous. Pick out all the datasheets, the requirements from the suppliers... Will the ceiling be suspended? Then the piping doesn’t matter anymore anyway.

If it remains a purely technical and connection room, that is comfortable; 8 m2 would probably do depending on the layout. We have everything you want (except for a gas boiler instead of a heat pump) in 13 m2, where a washing machine, a workbench, a 2.5 m shelf, and a beverage rack can also fit. And I don’t find it cramped.