How do I get a guest to pay for charging his car?

Each charging point is a separate billing item

A guest pays for charging by connecting their car to a charging point that itself records how much electricity is drawn, after which that consumption is billed via that one specific point — separately from the rest of the accommodation or park. With Staywatt, each charging point gets its own QR code and its own rate. The guest scans the code at the point, buys kWh in the app and sees the consumption during charging increase live in real time, just like it works with electricity consumption in a holiday home.

This principle does not change with scale: it works the same way with a chalet with one point next to the meter cabinet as with a holiday park with multiple points in different locations, and also with a party that operates charging points exclusively without any overnight stay involved. Because each point is a separate object with its own rate, there is no need to devise a separate arrangement to separate charging electricity from other consumption: the point measures and invoices for itself. For the landlord it remains ordering the module, having it installed and activating it via Bluetooth; for the guest it remains scanning, buying and watching live.

Why measuring and invoicing per point go together

That a charging point must reliably be able to determine how much electricity has been drawn before a price per kWh can be charged for it, aligns with the way in which measuring instruments for electricity are regulated: Directive 2014/32/EU sets requirements for electricity meters in Annex V, with the aim that the measured amount of electricity is accurate and verifiable. RVO furthermore describes charging infrastructure as part of electric mobility with its own place within the installation, with its own connection and management separate from the rest of the building. These two lines — reliable measurement on the one hand, a charging point as a separate facility on the other — are reflected in the choice to treat each point as an independent billing object, with its own QR code and its own rate per point.