Site dossier 01 / 09
Apartment building & condominium ownership (Stockwerkeigentum)
Overnight charging – billed fairly, without overloading the building connection.
For property managers, condominium owners, cooperatives and developers
Starting situation
Cars stand in the underground car park for 8 to 12 hours in the evening and overnight. Today only a few households drive electric, in a few years most will. The building connection is sized for apartments – not for twenty wallboxes drawing full power at the same time.
What matters
- Load management instead of grid reinforcementThe available power is distributed dynamically across all charging points. This often means the existing building connection is enough.
- Base installation firstCabling and load management for all parking spaces – the wallbox for each household follows later, when it is needed.
- Condominium ownership: resolution and cost allocationThe base installation in common areas generally requires a resolution of the owners’ meeting – and a cost allocation: who pays for the base installation, who for their own wallbox?
- Billing electricity per householdThree routes: your own back end, a third-party billing platform or the energy supplier. Which interfaces the devices support, e.g. OCPP, we confirm with the data sheet.
- ZEV or vZEV?With a solar system on the roof, a ZEV or vZEV (self-consumption community, real or virtual) can be of interest. We assess this in the project.






Juan Otero