How is contract-based charging billed?
Back at the car, the commuter compares two offers of the same provider: pay as you go at 0.69 EUR per kWh, or 9.99 EUR a month and 0.49 EUR per kWh.
The commuter charges about 120 kWh a month in public.
The questionHow does contract billing work, and which offer fits?
Computed for composed offers. Above about 50 kWh a month, the monthly fee pays off; at 120 kWh the commuter pays 68.79 EUR instead of 82.80 EUR.
One invoice for many chargers
- Sessions collect: every session, at the provider's own chargers or at partners, becomes a record in the provider's system.
- Monthly invoice: the provider bills the driver for all sessions of the month under the contract's prices.
- Transparency: before each session, the provider has to show the price for that session, including roaming costs.
Why offers differ
A subscription moves part of the price into a fixed monthly fee, which suits drivers who charge often in public. Pay as you go suits drivers who charge mostly at home. Providers' own prices are set by their contracts with operators and their own costs, which is why the same charger can cost different amounts with different cards.
Check your understanding
3 questions. Answer all of them to complete this stop. Each answer explains itself.
Pay as you go costs 0.69 EUR per kWh, a subscription 9.99 EUR plus 0.49 EUR per kWh. Where is the break-even point?
9.99 ÷ (0.69 − 0.49) ≈ 50 kWh.
Who sends the invoice for a contract-based session at a roaming partner's charger?
The provider holds the contract and bills all sessions, its own and roaming ones.
For whom does a subscription with a monthly fee usually fit best?
The fixed fee pays off through a lower price per kWh only with enough public charging.
- Roaming Charging in another company's network with your own card or app. EV charging fundamentals, stop 03 Glossary
- EUR-Lex: Regulation (EU) 2023/1804 (AFIR), Article 5(1) to (5). https://eur-lex.europa.eu/eli/reg/2023/1804/oj. Checked 09 Oct 2026. © European Union, reused under Commission Decision 2011/833/EU.