What is an eMSP in EV charging?

An e-mobility service provider (eMSP) offers drivers access and payment across participating charging networks through agreements with their operators [S1]. It need not own your chargers. Public charging rules require connection to at least 1 external roaming provider for chargepoints in scope [S2]. Confirm coverage, payment responsibilities and settlement terms. Checked October 2026.

Last checked 16 October 2026

What does eMSP stand for?

An e-mobility service provider (eMSP) is a service through which drivers can access and pay for charging across participating networks. The CMA describes these services as aggregators with agreements with charge point operators [S1].

For your business, this matters when a visitor or fleet driver wants to use an existing charging account at your bays. Ask the proposed operator which services will actually work at your site, and how the driver can recognise them. Read roaming explained.

How does an eMSP differ from a charge point operator?

The charge point operator runs the chargers. The eMSP provides access through participating networks. Do not assume the app name identifies the party responsible for repairs [S2], [S1].

An illustration, not a quote: assume a driver purchases 30 kilowatt-hours (kWh, a measure of energy) through a roaming service at an assumed 65p per kWh. The driver pays 30 × £0.65 = £19.50 before any separately stated fees. That does not tell you what the operator receives or your host share.

Request separate schedules for driver tariffs, settlement receipts, deductions and your revenue share. Have your accountant check how statements reconcile with your income records.

Why do public chargers offer apps and roaming?

Roaming lets a driver pay across networks using an existing service. It is distinct from ad hoc charging, where a driver need not have a pre-existing operator contract.

For public charging in scope, government guidance requires an external roaming connection [S2]. Ask your solicitor to check the proposed compliance arrangement.

Before opening, request a test session through each advertised access route. Check that the price, charger identity and receipt are clear. Agree who handles a failed authorisation, billing dispute or refund so your staff know where to direct a driver.

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