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Industry InsightMay 16, 20267 min read

The Dual-Energy Forecourt Card: Why Petrol Stations Are Issuing One RFID for Fuel and EV Charging

Petrol stations are turning into energy stations. The operators winning the transition issue a single RFID card that works at the pump, the EV stall, the shop, and the car wash — here's how the spec actually looks.

The Dual-Energy Forecourt Card: Why Petrol Stations Are Issuing One RFID for Fuel and EV Charging

Across Germany, Austria, Switzerland, the Benelux, France, and the UK, the forecourt is quietly being rebuilt. Aral has rolled Aral pulse stalls onto thousands of legacy BP-branded sites. Shell Recharge is now in over 1,800 European stations. Q8, OMV, TotalEnergies, Circle K, and a long tail of independent Tankstellenbetreiber have all started the same conversion: yank an island of pumps, drop in 150–350 kW DC chargers, repaint the canopy, and keep the shop. The "petrol station" is becoming an "energy station." And the operators who are winning that transition are the ones rethinking the one piece of plastic every driver still pulls out of their wallet: the card.

This is a piece about what that card should actually do — and why a station operator who reaches out to us asking about "loyalty cards" usually walks away ordering something quite a bit more ambitious.

The Driver's Wallet Is a Mess

A typical European driver in 2026 is carrying, at minimum:

A branded fuel card from their preferred chain (Aral, Shell, Q8, OMV, ENI).
A separate EV roaming card from a Mobility Service Provider — Plugsurfing, Chargemap, Maingau, NewMotion / Shell Recharge, EnBW mobility+, or their carmaker's own (Audi e-tron Charging Service, Mercedes me Charge, Škoda Powerpass).
A loyalty card or app for the same forecourt where they buy coffee and bottled water.
A car wash key fob or paper voucher.

For private drivers this is annoying. For fleet drivers it is operationally expensive: every extra credential is a separate invoice, a separate VAT trail, a separate dispute case when a charger rejects a tap. Fleet managers we talk to consistently rank "too many cards per driver" in their top three pain points — above public charger reliability, behind only billing reconciliation (which is, fundamentally, the same problem).

The forecourt operator sits on the only piece of physical real estate where all of this collides. They have the pump. They have the charger. They have the POS in the shop. They have the car wash. Whoever issues the card that authenticates against all four wins the customer for the next five years.

What the Dual-Energy Card Actually Does

A dual-energy forecourt card is one RFID credential, issued by the station operator, that authenticates the driver at:

1.The fuel pump.: The card is presented at the pump's contactless reader (or the forecourt POS) and unlocks a loyalty-discounted price per litre, a corporate fuel-card account, or both.
2.The EV charging stall.: The same card UID and cryptographic key are registered with the station's Charge Point Operator backend over OCPP 1.6J or 2.0.1, so a tap on the EVSE authorises a session and bills it to the same driver account.
3.The convenience-store POS.: Standard contactless smart-card readers at the shop counter accept the card for closed-loop loyalty redemption — coffee, snacks, wiper fluid, car-wash tokens.
4.The car wash.: Either a contactless reader at the entry gate or a code redemption flow tied to the same card account.

Behind the scenes there is exactly one card, one driver record, one invoice, one set of analytics. From the driver's pocket, there is one tap.

Why This Is Suddenly Buildable

Three things have lined up that make the dual-energy card a real product in 2026 rather than a deck-slide it was in 2021.

First, the chip families converged. The same MIFARE DESFire EV2 / EV3 silicon that the EV-charging world standardised on (because it does mutual authentication with AES-128 and survives the rough OCPP idTag matching that every CPO does slightly differently) is also fully supported by the forecourt POS terminals from Ingenico, Verifone, and the German payment-terminal duopoly of Hypercom and CCV. The card you would already pick for an EV roaming programme is the card the petrol station's existing POS can already read.

Second, the roaming infrastructure exists. Hubject's intercharge network and Gireve in France give a station operator a single integration point to register card UIDs and have them recognised at hundreds of thousands of chargers across Europe. The hard part of "make my card work at someone else's stall" is solved; what's left is a business-process question (do you want it to, and how do you split the revenue).

Third, fleet demand is real and loud. The mixed ICE-and-EV fleet is now the norm, not the future — most logistics, taxi, last-mile, and corporate fleets in the DACH region are running 20–60% EV mix and rising 5–10 points per year. Fleet managers will pay a premium for a card that closes their reconciliation problem. A petrol station that issues a dual-energy fleet card has a defensible B2B product, not just a loyalty programme.

What the Card Actually Looks Like (Spec)

A workable dual-energy forecourt card, for a station chain rolling out 50,000–500,000 cards across a country, looks like this:

Chip: MIFARE DESFire EV3, AES-128 mutual authentication, with per-application keys diversified from a station-chain master key held in the operator's HSM.
Application layout: at least three on-card applications — one for EV charging (idTag matching the OCPP / OCPI format the station's CPO expects), one for forecourt POS loyalty (closed-loop wallet ID), one for car-wash / vending closed-loop redemption.
Material: recycled PVC for cost-sensitive mass rollouts, FSC-certified wooden cards for premium and ESG-led programmes (we've shipped both at six-figure volumes).
Form factor: ISO 7810 ID-1 card for drivers, optional key fob for fleet vehicles where the card lives clipped to the visor.
Print: full-colour with station-chain branding on the front, driver or fleet identifier and a QR fallback on the back.
Encoding: pre-encoded UID, idTag aligned to the CPO's expected format (4-byte vs 7-byte, hex vs decimal), AES keys loaded under split knowledge between the printer and the operator's HSM.
Roaming: optional registration with Hubject and at least one OCPI MSP so the card also opens stalls outside the station chain's own network — useful for fleets, less critical for pure private-customer loyalty.
MOQ: 500 PVC, 250 wooden. Volume pricing kicks in at 5,000+; below 250,000 the card economics are dominated by chip cost and personalisation, above that by logistics.

Where Operators Get This Wrong

The pattern of failure is consistent across the projects we've seen launched (and a few we've been asked to rescue):

Treating it as a loyalty problem.: A station chain procures a loyalty card from their POS vendor's catalogue, then six months later realises it won't authenticate against their pulse / Recharge / e-mobility EV stalls. Now they have two cards again, or a costly re-issuance. *Specify EV charging on day one, even if you don't launch it until phase two.*
One shared AES key across the whole estate.: Sounds operationally simple, becomes a compliance and fraud disaster the first time a card is skimmed at a single station. *Use diversified keys per application and per station group, anchored in an HSM.*
Letting the card vendor own the idTag format.: Different CPOs and roaming hubs expect different idTag encodings. We have seen 30,000-card batches that had to be re-encoded because the CPO backend was expecting hex-uppercase and the cards were shipped hex-lowercase. *Lock the idTag format in writing with the CPO before the first card is printed.*
Forgetting the car wash.: The car wash is often run by a sub-contractor with a separate access controller, frequently a legacy 125 kHz LF system. *Either spec a dual-frequency card from the start, or budget for replacing the wash controller — don't discover this in month three.*
No reissue budget.: Annual reissue rates for forecourt cards run 6–10% (drivers lose cards more often than EV-only owners, because the card is in active rotation at the shop and the pump). Budget for it.

The Pitch If You're a Station Operator Reading This

If you operate a petrol-station network — a chain of ten sites, a Tankstellenbetreiber group in DACH, an independent in Eastern Europe pivoting to EV — and you were about to brief a vendor for "loyalty cards," consider briefing them for a dual-energy programme instead. The incremental cost over a plain loyalty card is meaningful but small. The incremental defensibility against the day a Shell Recharge or Aral pulse card walks into your forecourt and steals your customer is enormous.

We've built EV charging card programmes at every scale from regional CPO pilots to the 1.3-million-charger Octopus Electroverse network. We've shipped FSC wooden cards for the Škoda "Let's Explore" launch and recycled-PVC fleet cards for LetzCharge in Luxembourg. We have not yet shipped a card that does *all four* things — fuel, charge, shop, wash — at scale, because the operator side of that conversation has only just become serious in the last twelve months. We'd like to.

Where to Start

If you're at the "interesting, but what's the actual ask" stage:

1.Pull together the list of POS terminals, EVSE makes, and access controllers across one representative site.
2.Confirm the OCPP version your CPO backend expects and the idTag format they accept.
3.Decide whether you want roaming (Hubject / OCPI) on day one or in phase two.
4.Pick a pilot size — 500 cards across one site is enough to validate the integration; 5,000 across a cluster of sites is enough to prove the business case.

Browse our recycled PVC and FSC wooden RFID cards for the form factors and chip families. Read how we built the Octopus Electroverse roaming credential and the LetzCharge fleet card for two ends of the deployment spectrum. Or talk to us directly — tell us how many sites and how many cards, and we'll come back with a buildable spec and a price.

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The Dual-Energy Forecourt Card: Why Petrol Stations Are Issuing One RFID for Fuel and EV Charging | ChargeRFID