How a verifier checks your charging sessions

Booking sounds like an administrative task: add up sessions, submit, done. It is not. Every registration provider must have its bookings verified every year by an independent verifier. Only after that verification are the EREs (Emission Reduction Units) final. Below you can read what that verifier does, what the verifier looks at and what that means for you if you charge at home.

Who the verifier is

The Energy for Transport Regulation requires verification from everyone who books. That applies per facility and must be completed before 1 May of the year after the booking year. The verifier is an independent party, not the booker itself. The costs are for the registration provider, not for you.

The verifier works alongside the NEa, not instead of it. Private supervision (the verifier) and public supervision (the NEa) complement each other. So an approving verification statement does not protect a booker against a later correction by the NEa.

What the verifier checks

The requirements are in Annex 6 of the Regulation, part E. In summary, the verifier must:

1. Visit the records. The verifier comes to the location where the booker keeps its accounts. There, for every booked kWh, it must be possible to trace where it came from.
2. Visit charging locations by random sample. Based on a risk analysis, the verifier selects charging locations. So that can also be at your home. Your authorisation gives permission for that.
3. Check the meter on site. During such a visit, the verifier tests the meter of the metered delivery point for accuracy and reliability. In practice: is there a MID-certified meter in the charger, and does it match what was booked?
4. Check that no operating subsidy applies to the booked electricity. This plays a role in the business route for own generation, not in normal home charging on grid power.
5. Check that the connection supplies only the metered delivery point. What was booked must really have gone to your car.

On top of that, the verifier checks whether you actually bought the booked kWh on your connection. The evidence for that is your energy bill or the metering data of your connection. Meter readings alone are not enough for that.

What counts as evidence, and what does not

The verifier must be able to establish with reasonable assurance that the booking is correct. That only works with evidence that traces back to the meter.

What does count:

• Session data from the backend of your charger, with start and end time, kWh and origin per session.
• Proof that the meter is MID-certified, per model: a declaration of conformity, type certificate or datasheet from the manufacturer.
• An authorisation with your EAN code, in which you give the NEa permission to check your connection and the verifier permission to visit.
• Proof of purchase: your energy bill, or the metering data of your connection through a metering service.

What does not count:

• A photo of your meter reading.
• An estimate of your annual consumption.
• A spreadsheet with totals per quarter or per year.
• Charging data from your car's app.
• A separate meter in the meter cupboard. For home charging, only the meter in the charger itself counts.

The difference is in the chain. With session data from the source, the verifier can follow the line from meter to session to connection to booking. With a photo or a spreadsheet, that line breaks at the first link: nobody can show that this meter on this connection measured those kWh.

What it means for you

In practice you notice little of the verification. Your registration provider supplies the file and bears the costs. Three things are good to know:

• A visit can happen. In a random sample, the verifier can ask to see your charger. Your authorisation covers that. The visit is about the meter, not about you.
• Corrections work up to five years back. If a booking later turns out to be wrong, the NEa can correct it up to five years back and write off the EREs. The registration provider is liable for that, even if the error was the customer's.
• You stay responsible for what you provide. The EAN code, your address and the name on your connection must be correct. No verifier can get around that.

How we prepare for this

We build the file so that the verifier can follow every link:

• Every charging session comes directly from your charger, through a cloud connection or OCPP. We do not accept manual input.
• For each charger model, our catalogue holds a reviewed piece of MID evidence. Doubt means "unknown", never "yes".
• With an OCPP connection, we compare the serial number of your MID meter with what the charger itself reports. If they do not match, we refuse the connection.
• We keep every OCPP message in an append-only archive. Nobody can change anything in it afterwards.
• One authorisation is active per connection. The authorisation history is append-only.
• We keep all documents for at least five years from the calendar year of the booking.

You can read how that works technically on our architecture page.

The calendar for booking year 2026

Step	Deadline
Booking sessions from 2026	last working day before 1 March 2027
Transferring EREs	1 April 2027
Verification completed	before 1 May 2027

Until the booking deadline, a booking can still be changed. After that it cannot, except through a correction by the NEa.

Further reading

• What the NEa confirmed about ERE booking
• What are EREs and how do they work?
• The technology behind the evidence

Sources

1. Government Gazette (Staatscourant) 2026, no. 15748 • Energy for Transport Regulation, Annex 6 part E
2. NEa • Registration providers
3. NEa • How do I show that my meter is MID-certified?