How do you bill residents for EV charging in a condo or apartment building?

With askacharge.com each resident charges with their own RFID card, and at the end of the month the platform produces a usage report per resident and unit (PDF or CSV) with sessions, kWh and amount. The association or property manager bills it with the dues, so there is no percentage on the energy. Residents and visitors can also pay by card through a QR code.

Is there a monthly fee per charger?

No. askacharge.com costs $20/month for the whole building with unlimited chargers, so chargers that sit unused while owners are away cost nothing to keep on the platform.

Can the chargers share the building's electrical capacity?

Yes: you set a maximum power for the site and the platform shares it among the cars charging, with standard OCPP charging profiles. Dynamic balancing from a main panel meter exists but is basic and has not yet been used on a US 208 V building, so check it with us for your meter before relying on it.

EV charging software for apartment and condo buildings: billing per resident, no per-charger fee

Thirty chargers in a 200-unit building, half the owners away for the winter, one electrical service and an association that has to bill each resident. The two numbers that decide it are the cost per charger and the percentage on every kWh. Here they are zero.

The two numbers that matter in a building

Cost per charger: zero. $20/month covers the whole building with unlimited chargers. Owners who installed a charger to future-proof the unit, or who spend half the year away, cost nothing.
Percentage on each kWh: zero. The software takes no commission on the energy. The only percentage appears if someone pays by card (2% + $0.25 per payment), and in a building most charging can go on the monthly bill instead.

How billing per resident works

The building is a "community" in the dashboard, with its residents and their units (12B, PH2…).
Each resident gets an RFID card — or registers their own — and charges with it.
At the end of the month you download the usage report: one line per resident with unit, sessions, kWh and amount at the price you set, plus every session in detail. PDF for the residents, CSV for the accounting.
The association or property manager adds it to the dues. No card fees, no percentage.

Visitors, guests or residents who prefer it can pay by card through the QR code on the charger, without an app. A resident can also run on a prepaid balance: the charger stops when the money runs out (on OCPP 1.6 chargers for now).

Sharing the building's electrical capacity

Static: set the maximum kW for the building, or for each panel, and the platform shares it among the cars that are charging, using standard OCPP charging profiles. This is what lets 30 chargers live on a service sized for 10.

Dynamic, from the main panel meter: there is a mechanism that reads the building's meter and throttles the chargers when the building approaches its limit. It is basic, it was developed on European installations (230 V) and it has not been used on a US 208 V building yet. If you need it, we look at your meter and panel with you first.

Plug & Charge and RFID

RFID works with every OCPP charger, and the card list can be stored on the charger so it keeps working if the internet drops. Plug & Charge (ISO 15118) is implemented on the server side over OCPP 2.0.1, but no charger on the platform uses it yet, and in the US most cars get their Plug & Charge contract through Hubject, which we are not connected to.

What it costs

Software: $20/month (€20 in Europe) for the whole site, with unlimited chargers. No per-port fee, no setup fee, no contract. 30-day free trial, no card.
Card payments from drivers: 2% + $0.25 per payment, with Stripe's own fee already inside that figure. The money goes to your own Stripe account.
The software takes 0% of the energy you sell.

You can set it up yourself — sign up, add the chargers, change one setting on each charger — or we do it with you on a call, with you or your installer. Full price list.

Which chargers

Any charger that speaks OCPP 1.6J or 2.0.1, from any brand: you point it at askacharge.com by changing its server address, and you can point it somewhere else the day you want to leave. If you haven't bought the chargers yet, ask the seller in writing whether the owner can edit the OCPP server URL — some brands lock it to their own cloud. How to change it, brand by brand.

What we don't do (yet)

Support is by email from Spain, six to nine hours ahead of the US. No call centre and no 24/7 phone line for drivers. Drivers pay without an account, so most of them never need one.
No native driver app. Drivers use a web page (they can install it on the phone); the QR code needs no app at all.
No idle fee for a car left plugged in after it finishes charging.
No US tax filing. You set your tax label and rate, and invoices carry them; filing is yours.
A resident's card is not locked to their own bay: it works on every charger in the building. If the chargers are private, that matters.

Sources

Prices: askacharge.com pricing
Other types of business: askacharge.com by sector
Choosing a platform: the best EV charging management software in 2026