Published 27/09/2026 · Updated 27/09/2026 · By Voldt® product team

Home charging of a company EV is reimbursed correctly when a certified meter records each session and sends it to the fleet platform. Companies register about 60% of new cars in the EU, so the question now reaches most fleets (European Commission, December 2025). A portable charger with a MID-compliant meter and OCPP does both from an ordinary socket, with no wallbox to install.

Voldt® · session 0142

Plugged in

22:10

Unplugged

05:52

Duration

7 h 42 min

Driver

ID 0417

Total
energy

24,6kWh

Meter

00482,1 → 00506,7 kWh

✓ Sent via OCPP 1.6 JSON

MID
meter

Corporate buyers account for about 60% of new car registrations in the EU and up to 90% of new vans (European Commission, December 2025). The Commission has proposed a Clean Corporate Vehicles Regulation that would oblige member states to reach set shares of zero- and low-emission registrations by large companies from 2030, still under negotiation in the European Parliament (June 2026).

National tax rules move faster. The Netherlands is one worked example: from 1 January 2027 an employer pays a levy of 12% of the catalogue value every year on a petrol, diesel or hybrid company car that the employee may also use privately, commuting included (Belastingplan 2026). Fully electric cars are exempt, so the levy alone adds €6 000 a year to a hybrid with a catalogue value of €50 000.

Every switch creates the same follow-up task. The electricity appears on the driver's private bill, and the employer has to repay the car's share without paying for the rest of the household. Metering the car itself is the simplest way to split that bill.

A home meter records the whole household in one figure: cooking, heating, laundry and the car. Splitting that total by estimate invites disputes, and tax offices increasingly want the car's own reading. Germany is an example: since 1 January 2026 an employer can repay home charging of a company car tax-free only when a separate meter shows the kWh (BMF letter, 11 November 2025).

The car's app looks like an easy alternative, but it measures energy after the losses in the car. In an ADAC test of five current EVs, 12,7 to 24,2% of the electricity drawn from a 2,3 kW household socket never reached the battery; at an 11 kW wallbox the loss fell to 5,1 to 7,0% (ADAC, August 2026). Reimbursing from the app underpays the driver by that share.

A meter inside the charger measures before the car, so the losses in the car are part of the metered kWh, as they are on the electricity bill. MID-compliant means the meter meets the EU Measuring Instruments Directive (2014/32/EU), which covers electricity meters used for billing.

OCPP, the Open Charge Point Protocol, is the open language between a charge point and the software that manages it. The Voldt® Portable OCPP Charger speaks OCPP 1.6 JSON and has a communication module with SIM, Wi-Fi and Bluetooth. From the backend's side it behaves like a fixed charge point, so it needs no Voldt® platform of its own.

Each session arrives with its start and end time, the meter readings and the kWh. Platforms such as E-Flux, Last Mile Solutions and Shell Recharge collect these sessions, apply the agreed price and produce a monthly statement for the employer or lease company. Nobody types in a meter reading or sends a photo of the car's screen.

Check one detail before you order: OCPP 1.6 and 2.0.1 are separate versions that cannot talk to each other (Open Charge Alliance), so your platform must accept 1.6 JSON connections. Version 2.0.1 became the international standard IEC 63584 in October 2024.

The charger takes its power through interchangeable adapters: a household socket (Schuko), CEE industrial sockets of 16 A and 32 A, and a Type 2 adapter for public AC posts. The Basic set includes the Type 2 and Schuko adapters, and the Pro set adds CEE. The socket sets the ceiling, and the car's on-board charger decides how much of it is used.

At 3,7 kW a household socket delivers about 30 kWh in an eight-hour night, around 160 km for a car that uses 18 kWh per 100 km. Three-phase sockets charge faster, and in the ADAC figures above the loss on the way to the battery was lower at 11 kW.

With the Type 2 adapter the charger also works at public AC posts. Those sessions are billed by the post's operator through a charge card, so reimburse them from the operator's invoice and leave them out of the charger's statement.

A fixed wallbox with a MID meter and OCPP does the same metering job and charges faster at home when the house has three phases. It also needs an installation, a place on the wall and, in rented homes, the landlord's consent. When the employee leaves, someone has to remove it or buy it out.

The portable charger moves with the car. It suits drivers who rent, drivers who may change job or address within the lease term, and pool cars that different people take home. One device follows the car from one driver to the next, and the metering history stays in the backend.

For a homeowner with three-phase supply and high mileage, a fixed wallbox remains the better option, and a mixed fleet can use both.

• Use only the charger's own Voldt® adapters, plugged straight into a sound, earthed socket, never an extension lead.
• Have an electrician check that a household circuit carries 16 A for hours before nightly use.
• Where your car's manual differs from this guide, follow the manual.

Voldt® cables and portable chargers are CE marked and TÜV certified, with a 3-year warranty; terms and exclusions are on the warranty and complaints page.