Public EV Charging Network Cost Comparison (UK & EU 2026): Which Membership Actually Pays Off

If you charge an electric car in public in the UK in 2026, the honest headline is this: you will pay around 79p per kWh ad-hoc on a rapid or ultra-rapid charger — the weighted UK average was 79p/kWh in May 2026 [1] — and almost everything you can do to lower that bill comes down to one decision. The right network membership or roaming app cuts 10–30% off the price, and on some networks it more than halves it. Ionity's Passport membership drops the UK rate from 74p to 43p [6]; a Tesla charging membership reaches 25p off-peak [3]. But none of it touches the bigger truth underneath: charging at home, even at the standard ~25p day rate and certainly at the ~8p off-peak rate (mid-2026), is three to ten times cheaper than any public option [8][9]. This piece is about getting the public bill as low as it will go — and knowing exactly when a subscription earns its monthly fee.

This is the UK-and-Europe deep dive, focused on which subscription, roaming app or membership actually pays off for your mileage. If you drive in the States, the pricing logic is the same but the networks and rules differ — see the US network cost comparison instead. For the combined US-plus-Europe overview and the cost-by-network league tables, start at the public EV charging networks compared hub; and because home power beats every network rate below, the 2026 home EV tariff rate table covers the off-peak deals that should carry most of your miles.

The number that matters: ad-hoc vs membership

The casual rate — the price you pay by tapping a contactless card with no app and no subscription — is the most expensive way to charge. It is also the rate most drivers actually pay, because signing up to a membership feels like friction for an occasional top-up. That instinct is right for genuinely occasional use and wrong the moment you charge on the same network more than once or twice a month.

Two prices sit on every fast charger. The ad-hoc rate is the headline number on the screen. The member rate is what you pay after a subscription, a roaming app, or in Tesla's case a flat monthly fee. The gap between them is the entire game. On Ionity in the UK, ad-hoc is 74p and the Passport member rate is 43p — a 31p saving on every single kWh [6]. On Fastned, the €11.99 Gold membership knocks 30% off, taking the UK rate from 74p to about 52p [7]. On Tesla, the £8.99 membership turns a 63p open rate into 41p peak and 25p off-peak [3].

The chart below lines up the typical ad-hoc rates across the big UK networks, with home rates included so the scale is honest. The cheapest open network — Tesla, at around 63p daytime — is still about eight times the off-peak home rate.

The full comparison table

Here is every major UK and European network you are likely to use, with its ad-hoc rate, the membership option and fee, the discounted member rate, and how wide its coverage is. UK figures are in pence per kWh including VAT; EU figures in euros per kWh including VAT.

Network	Typical ad-hoc	Membership & monthly fee	Member rate	Coverage
Tesla Supercharger (UK, open)	63p (day) / 35p (off-peak)	£8.99/mo membership	41p day / 25p off-peak	Largest fast network; most sites open to non-Tesla
Instavolt	85–92p	none (PAYG only)	60p off-peak (site-based)	Large rapid/ultra-rapid UK network
BP Pulse	85p (guest)	£7.85/mo subscription	as low as ~44–63p	Wide UK coverage, mixed speeds
Gridserve	82–89p	Gridserve Plus £7.99/mo (−25%)	~62–67p	Motorway Electric Highway + hubs
Osprey	79–82p	via Electroverse −20% (7–11pm)	~63p in window	Rapid hubs across UK
Ionity (UK)	74p (Direct) / 71p (Go)	Passport Power £10.50/mo	43p	Ultra-rapid, motorway corridors
Shell Recharge	~79–85p	via roaming apps	varies	Forecourts + en-route UK/EU
MFG EV Power	~80–89p	none (PAYG)	—	UK's largest by charger count (2026)
Fastned (DE)	€0.69 ad-hoc	Gold €11.99/mo (−30%)	~€0.48	NL/DE/UK/BE/FR ultra-rapid
Ionity (EU)	€0.75 (Direct)	Power €11.99/mo	~€0.39	5,000+ points, 24 countries
Allego (NL)	~€0.79	via roaming apps	varies	NL/DE/FR/BE network

A few things jump out of that table. First, the UK ad-hoc rates cluster tightly between roughly 79p and 92p — Instavolt at the top, Tesla's open sites well below the pack [2][4]. Second, the membership economics differ wildly: Ionity and Tesla offer the steepest per-kWh cuts, while Instavolt and MFG offer no subscription at all and rely on occasional off-peak site pricing [4]. Third, the European ultra-rapid networks are, in euro terms, broadly cheaper than UK rapid charging once VAT and local electricity costs are accounted for — Fastned's €0.69 German ad-hoc rate is meaningfully below the UK's 79p average [7][14].

It is worth reading the table for what it does not say, too. A low ad-hoc rate with no membership (Tesla, at 63p open) can beat a high ad-hoc rate with a generous membership (Ionity at 74p, 43p with Passport) for an occasional user who will never clear the subscription break-even — but the moment usage rises, the network with the better membership wins. That is why there is no single "cheapest network": the answer depends on how often you will actually plug into it. A motorway commuter who passes the same Ionity site daily lives in a completely different cost world from a city driver who fast-charges twice a year before a holiday, even though both see the same numbers on the screen.

Two structural quirks also distort the rankings. Instavolt and MFG keep things deliberately simple — one transparent ad-hoc price, no app gymnastics, no subscription — which many drivers value enough to pay a premium for; you are buying predictability, not the lowest possible rate [4]. BP Pulse runs the opposite model: a wide range of prices that swings on charger speed, location and subscription status, which makes it cheap if you optimise and expensive if you tap-and-go [12]. Knowing which kind of network you are standing at changes whether reaching for an app is worth the thirty seconds.

Roaming apps: the no-monthly-fee shortcut

Network-specific memberships only pay off if you keep returning to that network. Roaming apps solve the other problem: one account, one card, one app that works across dozens of operators — often with a discount stacked on top and, crucially, frequently with no monthly fee.

Octopus Electroverse is the most widely used in Europe, covering over 850,000 chargers across 40-plus countries with a single card and no subscription cost [10]. It does not undercut a dedicated membership on a network you use constantly, but it removes the friction of juggling apps, and it runs rotating partner discounts — for example 20% off Osprey chargers between 7pm and 11pm, and "plunge pricing" trials of 15–45% off at thousands of points across Ionity, Osprey, Be.EV and others [10]. For a driver who charges across many networks, that is free money.

Bonnet (now owned by OVO) takes the paid route: its Boost tiers cost £2/month for 10% off or £8/month for 15% off most public networks [11]. The £2 tier pays for itself fast — at a 79p average, 10% is about 8p/kWh, so roughly 25 kWh of charging a month covers the fee (our calculation). Tesla membership at £8.99 and Ionity Passport at £10.50 are the heavy-hitters when you commit to one network [3][6].

The important mental model is that roaming apps and network memberships are not competitors but complements. A roaming app is the default — the thing you keep on your phone so any charger, anywhere, works without registering on the spot. A network membership is a targeted overlay you add only on top of that, for the one or two operators you genuinely use enough to clear the break-even. Many drivers end up holding Octopus Electroverse for breadth plus a single paid membership for their most-used motorway network, and nothing else. The mistake to avoid is collecting four or five paid subscriptions "just in case" — each carries a monthly fee that quietly eats the saving unless you actually use it. Subscriptions are flexible; both Bonnet and the network memberships can be cancelled month to month, so the right discipline is to add one before a heavy-driving period and drop it afterwards [11].

There is a second, less obvious benefit to roaming apps: reliability and routing. A charge that fails to start, or a payment terminal that rejects a contactless tap — both common annoyances on older hardware — are smoothed over by an app that authenticates in the background and shows live availability before you arrive. For long trips, that operational reliability can matter more than a few pence per kWh, because a 20-minute detour to a working charger costs more in time than the price difference between networks.

The tariff side of this equation matters as much as the network side. The cheapest public charge in the world is still beaten by a smart off-peak home tariff, and switching to one is the single highest-return move an EV driver can make.

The break-even: when does a subscription pay off?

The maths is simple and worth memorising, because it cuts through every marketing claim. For any membership:

Break-even (kWh per month) = monthly fee ÷ per-kWh saving.

Charge more than that on the network each month and the membership is in profit. Below it, you are paying a fee for nothing.

Run the numbers on the main plans (all our calculation, from the rates above):

• Ionity Passport: £10.50 ÷ 31p = about 34 kWh/month. One decent motorway top-up clears it. Anyone doing regular long-distance driving on Ionity should subscribe [6].
• Tesla membership: £8.99 ÷ the peak saving of 22p (63p→41p) = about 41 kWh/month; against the off-peak saving it pays off even faster [3]. For frequent Supercharger users it is close to a no-brainer.
• Fastned Gold: €11.99 for a 30% cut. At a 74p UK base, the saving is about 22p/kWh, so break-even is roughly 54 kWh/month [7].
• Gridserve Plus: £7.99 for 25% off. On an 85p base that is about 21p saved, breaking even near 38 kWh/month [5].
• Bonnet Light Boost: £2 for 10%. At 79p that is about 8p saved — break-even near 25 kWh/month [11].

The pattern: low-fee or no-fee plans (roaming apps, Bonnet Light) pay off for almost anyone who charges publicly at all, while the bigger memberships need genuine, repeated use of one network. A driver who fast-charges twice a month on holiday should reach for a free roaming app, not a £10 subscription.

One subtlety the simple formula hides: the saving you plug in should be your real saving on the networks you actually use, not the headline discount. A 30% membership cut sounds bigger than a flat 8p, but 30% of a network you visit once a quarter is worthless, while 8p across every charge on a network you use weekly adds up. Always run the break-even against your own charging pattern — how many kWh, on which network, in a typical month — rather than the advertised percentage. The calculator below does exactly that: enter your mileage and usual network and it returns the annual cost under ad-hoc versus member pricing so you can see whether a subscription is in profit for you specifically.

Three driver profiles

To make the abstract concrete, here is how the decision lands for three common drivers (each our own worked example from the rates above).

The home-charging commuter does 90% of charging overnight on an ~8p tariff and only fast-charges on the occasional long trip. For them, no paid subscription clears its break-even — the right kit is a free roaming app (Octopus Electroverse) for the rare top-up, and that is the whole strategy [8][10]. Paying £10 a month to save on charging they barely do would be money lost.

The long-distance regular drives 25,000 miles a year, much of it on motorways, fast-charging perhaps 300–400 kWh a month in public. For them the picture inverts: a network membership is essential, and the only question is which one matches their usual corridor. On Ionity-heavy routes, Passport saves well over £100 a month at that volume; the £10.50 fee is a rounding error [6] (our calculation).

The no-driveway driver can't charge at home at all and depends entirely on public charging — the most expensive position to be in. Their priority is twofold: find the cheapest network they can reach routinely (Tesla open sites or an off-peak Instavolt location), and stack a membership plus a roaming app to claw back every available pence [3][4][10]. For this driver, even small per-kWh savings compound into hundreds of pounds a year, because public charging is 100% of their bill rather than a top-up.

Home charging still wins by a mile

Every public number above exists in the shadow of one fact: the cheapest public rate is still far more expensive than charging at home. This is the most important thing in the article, and it reframes the whole subscription question — memberships are about damage limitation on the road, not about competing with your driveway.

Intelligent Octopus Go's overnight EV rate sits around 8p/kWh in mid-2026 (varies by region), with the cheapest advertised simple off-peak window — EDF GoElectric at 6.99p, 11pm–6am — a touch lower still [8]. Even drivers without a smart EV tariff pay only the standard day rate — around 25p/kWh under the Ofgem cap (24.67p for Apr–Jun 2026, with ~26p announced for Jul–Sep) [9]. Set those against the 79p public average and the gap is stark.

The clearest way to see it is the cost to add 200 miles of range — about 57 kWh for a typical 3.5 mi/kWh EV. The chart below puts the home and public options side by side.

At home off-peak that 200 miles costs about £4.60; at the standard home day rate about £14; on the UK public average about £45 (our calculation from [1][8][9]). Even the best public member rates — Tesla's 25p off-peak — land near £14, roughly the home day rate but never beating the off-peak home window. The strategic conclusion writes itself: do as much charging as you can at home on an off-peak tariff, and treat public charging as the expensive top-up it is, minimising its price with the right membership.

That makes a home charger the highest-leverage purchase in EV ownership — it is what unlocks the ~8p off-peak rate in the first place.

The European picture: cheaper per kWh, different memberships

Cross the Channel and the structure is the same but the numbers shift. European ultra-rapid charging is, in euro terms, often cheaper than UK rapid charging — partly lower electricity costs in some markets, partly fiercer network competition. eleport's 2026 price report puts European DC fast charging broadly in the €0.50–0.80/kWh band, with the best markets well below the UK average [14].

Fastned's German ad-hoc rate fell to €0.69/kWh in 2026, and its €11.99 Gold membership takes that down by 30% [7][14]. Ionity's European Power membership at €11.99 reaches about €0.39/kWh against a €0.75 Direct rate — a bigger absolute saving than its UK equivalent [6]. Allego sits near the top of the Dutch market at around €0.79/kWh ad-hoc [14]. The ACEA and Eurelectric data make the wider point that European public pricing remains a patchwork: the same network can charge materially different rates in Germany, the Netherlands and France, so a roaming app that smooths across borders is especially valuable for drivers touring the continent [16].

For a UK driver heading to Europe, the move is to carry Octopus Electroverse for breadth, and add Ionity Passport or Fastned Gold only if your route leans heavily on one of those networks [6][7][10]. The break-even maths is identical — fee divided by saving — just denominated in euros.

One practical warning for cross-border drivers: a network membership bought for the UK does not always carry the same rate abroad, and vice versa. Ionity's subscription rates, for instance, can differ between the UK and continental Europe even under the same Passport branding, because the underlying per-country electricity and tax costs differ [6]. Read the country-specific rate before assuming a UK membership saves you the same amount in France or Germany. This is precisely where a single roaming card earns its keep — it abstracts away the per-country pricing complexity into one bill, even if it occasionally costs a few cents more than the cheapest local option on any given charger [10][16]. For a two-week European tour, the time saved not juggling apps and local memberships is usually worth more than the marginal price difference.

Putting it together

The decision tree is short. If you charge publicly only occasionally, get a free roaming app (Octopus Electroverse) and never pay a monthly fee [10]. If you regularly fast-charge on one network — Tesla, Ionity, Fastned, Gridserve — do the break-even sum and subscribe the moment your monthly kWh clears it, which for most committed users is a single long trip [3][6][7]. And whatever you do publicly, anchor your charging at home on an off-peak tariff, because no public membership on the market will ever beat an ~8p overnight rate [8]. The networks are competing for the expensive minority of your charging; the cheap majority should happen on your own driveway.

Common questions

What is the average cost of public charging in the UK in 2026? The weighted average pay-as-you-go price on UK rapid and ultra-rapid chargers (50kW and above) was 79p/kWh in May 2026, according to Zapmap [1]. That works out to roughly 24p per mile for an average-efficiency EV. Slower AC charging is cheaper, and member rates or roaming apps can cut the rapid figure by 10–30%.

Which UK charging network is cheapest? Among the big rapid networks, Tesla's open Superchargers are typically cheapest at around 63p/kWh daytime, dropping to about 35p off-peak [3]. Instavolt sits at the top end near 85–92p [4]. But a membership changes the ranking: with Ionity Passport (43p) or a Tesla membership (25p off-peak), a normally expensive network becomes one of the cheapest [3][6].

Is a public charging subscription worth it? It depends entirely on how much you charge on that network. The break-even is the monthly fee divided by the per-kWh saving. Ionity Passport saves 31p/kWh for £10.50, so it pays off after about 34 kWh a month — roughly one motorway top-up [6] (our calculation). A roaming app like Octopus Electroverse charges no monthly fee at all, so it pays off immediately.

How much cheaper is home charging than public? Dramatically. An ~8p off-peak home rate (mid-2026) is about ten times cheaper than the 79p UK public average, and even the standard ~25p home day rate (Apr–Jun 2026 cap) is roughly a third of the public price [1][8][9]. Adding 200 miles costs about £4.60 at home off-peak versus about £45 on the average public rapid charger (our calculation).

Do I need to be a Tesla owner to use a Supercharger? No. Most UK and European Supercharger sites are now open to any EV via the Tesla app [3]. Non-Tesla drivers pay a slightly higher rate ad-hoc, but a £8.99/month charging membership brings it down to 41p peak and 25p off-peak — among the lowest public rates available [3].

What is the best roaming app for EV charging in Europe? Octopus Electroverse is the most widely used, covering over 850,000 chargers across 40+ countries with no monthly fee and occasional partner discounts (for example 20% off Osprey in the evening) [10]. Bonnet is a paid alternative at £2 or £8/month for 10% or 15% off most networks [11]. For Ionity specifically, the Passport membership beats any roaming app on price [6].