Payments at charging stations via QR code are already widespread today. What added value does the ev-pay solution offer CPOs and e-motorists?
The payment process does not require scanning a QR code or entering an email address. This can be a nuisance, especially in bad weather. This process cannot be carried out without a smartphone.
The ev-pay solution, on the other hand, accepts all common payment cards, whether digital or physical.
This makes the payment process using the ev-pay solution just as simple and efficient as, for example, the payment process at a standard cash register at a petrol station.
Where can e-mobilists find out about locations and current prices in advance so that they can plan their journey economically?
ev-pay GmbH passes on charging station data (point of interest information) to aggregators such as ‘moovility’, which in turn appear in the navigation systems of car manufacturers. ev-pay GmbH also works with various map service providers.
This ensures that electric vehicle drivers have all the information they need about ev-pay when they set off on their journey and that the navigation system enables them to plan the best route in terms of cost and time.
What is a CPO?
CPO stands for Charge Point Operator.
Charge point operators are responsible for the safe operation of the charging infrastructure. They take charge of the operational management of the charging stations and their connection to an IT backend.
What is a CPMS?
The term CPMS stands for Charge Point Management System.
A Charge Point Management System facilitates the operation of charging stations by digitally mapping the entire charging network and enabling communication and data exchange between the individual charging stations.
These software solutions provide a clear overview of the status of all connected charging stations and charging processes. In addition, tasks and processes can be controlled and automated remotely.
What is a eMSP?
The term eMSP stands for eMobility Service Provider. It is often also referred to as EMSP, MSP or simply ‘provider’.
The eMobility Service Provider is the company with which the electric vehicle driver concludes a contract for all services related to electric charging.
The eMSP performs various tasks, including providing charging passes, apps for searching and navigating to charging stations, managing and expanding the roaming network, billing and customer management, and setting prices for the driver’s charging sessions.
What is a PSP?
The term PSP stands for Payment Service Provider.
A Payment Service Provider is a company that provides payment services for other companies. To do this, the merchant’s systems are technically connected to the PSP, which enables payment processing via the desired payment methods.
How do I obtain the required payment terminal?
The payment terminal is not provided by ev-pay GmbH.
The hardware must be purchased from FEIG ELECTRONIC GmbH, Hectronic GmbH, or other integrators who use FEIG’s calibration-compliant payment terminal.
Does ev-pay GmbH procure electricity and market it?
Procurement, marketing and pricing are the sole responsibility of the CPO.
ev-pay GmbH is not involved in the flow of funds from the e-mobility user to the CPO. This is transferred directly from the e-mobility user to the CPO’s business account. This transaction is carried out using a payment service provider.
What are dynamic prices at a charging station?
By dynamic pricing, we mean that the CPO can respond to external price fluctuations in real time and in accordance with calibration law when procuring electricity, in order to pass on the final price to e-motorists in a variable manner and according to its own logic.
Prices can be changed, just like when refuelling. At the start of the charging process, the prices (kWh price, blocking fee, parking fee and start-up fee) for this charging process are fixed.
If prices are changed during the charging process, the changed prices only apply to the next charging process.
How can dynamic prices be set by the CPO?
Prices can be set automatically via REST API (Representational State Transfer – Application Programming Interface) or manually via CPO access in the ev-pay HUB, in compliance with calibration law and specific to each charging point.
It is also possible to group charging stations according to your own logic and assign tariffs to these groups.
How does communication between the CPO backend, ev-pay HUB and payment terminal work?
The charging station is connected to the ev-pay HUB via OCPP. Data that is not relevant for ad hoc payments (such as roaming data) is forwarded unchanged to the CPO’s downstream CPMS, where it is processed.
The ev-pay HUB communicates with the charging station via OCPP and transfers the data to the payment service providers and banks using the payment terminal, and vice versa.
Example: If the PSP sends feedback to the ev-pay HUB that the e-mobility user’s account has sufficient funds and the pre-authorisation amount has been successfully reserved, the ev-pay HUB sends the OCPP command Remote Start Transaction to the charging station and the charging process begins.
This procedure is carried out by the ev-pay solution in accordance with calibration law. ev-pay has filed two patents for this procedure.
Is an interface between the ev-pay HUB and the CPO backend necessary?
Yes, the ev-pay HUB logs into the CPO’s backend in the same way that a charging station would.
How is the data from a loading process linked between the ‘target location’ accounting and the transaction revenue?
The ev-pay HUB provides the CDRs (Charge Detail Records) for a charging process.
With the consent of the PSP, the transaction IDs can be linked to the CDRs. On this basis, ev-pay GmbH can send a report to the CPO’s accounting department so that it can automatically settle the charging processes as easily as possible.
In any case, the CPO can use an API to the ev-pay HUB to have the receipts automatically transferred to its accounting department for further processing.
Can Feig payment terminals be retrofitted regardless of the manufacturer of the charging station?
For an ev-pay solution integrated into the charging station, only mechanical integration by the manufacturer is required. This currently requires a power connection and internet access from the charging station. In the course of 2026, there will be a new version that only requires a power connection and establishes its own internet connection.
A remote ev-pay solution for retrofitting all charging stations that comply with calibration law is possible, for example, via Hectronic’s Hecpay.
Can existing charging stations be retrofitted regardless of the manufacturer?
Yes. Existing charging stations can be retrofitted if they use the OCMF data format and at least OCPP 1.6 JS for calibration compliance.
Do I need a new SIM card?
As a rule, you do not need a new SIM card if your charging stations have a normal internet connection.
However, if your charging stations use a VPN SIM card from your CPMS provider, these must be replaced with open SIM cards.
If necessary, you can also purchase a suitable SIM card directly from ev-pay.
