Charging at home can be properly cheap…or quietly expensive if your tariff gives you a bargain overnight, then mugs you off the moment the sun comes up.
In the next five minutes, you’ll know which EV tariffs make sense for your setup (smart charging, a fixed cheap night window, or the solar + battery power-move), which numbers actually matter (off-peak rate, peak rate, standing charge), and how to switch without tripping over exit fees or “sorry, you’re not compatible” small print.
For context, Ofgem’s price cap for April–June 2026 puts a typical electricity unit rate at 24.67p/kWh - treat that as your “normal” baseline, and judge any EV-tariff savings against it so you’re comparing like with like.
If you’re ready to get started with Intelligent Octopus Go, head over to the Octopus Energy website for more information.
What is an EV tariff?
An EV tariff is just time-of-use electricity pricing designed to make charging cheaper.
You get a low “off-peak” rate for a chunk of the night (often somewhere around midnight–5am, depending on the tariff) when demand is lower - ideal for plugging in while you sleep.
The catch? Some tariffs offset that cheap night rate with a higher daytime rate (and sometimes a higher standing charge), so they’re only a win if you can shift most of your charging - and ideally a decent chunk of household use - into the off-peak window.
Then you’ve got smart EV tariffs. These can go one step further by scheduling your charging automatically when electricity is cheaper and/or lower-carbon, as long as you’re happy to hand over the timing (you can still usually override it when you need a full battery ASAP).
To use most EV tariffs, you’ll typically need a smart meter.
For smart tariffs specifically, you may also need a compatible EV, charger, or app so the supplier can control or coordinate the charging schedule.
The best EV tariffs in the UK right now (2026)
Here's a quick comparison table to cut through the noise. We've focused on electricity rates since that's what powers your EV - gas is separate if you have it.
Supplier + Tariff Name | Off-peak Rate (p/kWh) | Off-peak Window (start–end) | Peak/Day Rate (p/kWh) | Standing Charge (p/day) | Exit Fees (if any) | Eligibility Quirks | Best For |
7.5 | Smart-scheduled (typically 11:30pm–5:30am, 6 hours) | ~30 (varies by region) | ~60 (varies by region) | None | Smart meter; compatible EV/charger; must own EV; Octopus app | Smart charging flexibility | |
Octopus Go | 8.5 | 00:30am–5:30am (5 hours) | ~30 (varies by region) | ~60 (varies by region) | None | Smart meter; any EV/charger; must own EV | Simple fixed overnight window |
British Gas EV Power | 9 | 12am–5am (5 hours) | ~27 | ~57 | May apply if fixed term | Smart meter; any EV/charger; must own EV; pay by Direct Debit | Reliable basics without compatibility hassles |
EDF GoElectric | ~9 | 12am–5am (5 hours) | ~33 | ~57 | None mentioned | Smart meter; any EV/charger | Predictable low-cost nights |
E.ON Next Drive | 6.7 | 12am–7am (7 hours) | ~25 | ~57 | None mentioned | Smart meter; any charger | Longest cheap window for big batteries |
Octopus Flux | Varies (super cheap ~7-10p) | 2am–5am (3 hours, plus export perks) | ~30 off-peak / higher peak 4pm–7pm | ~60 (varies) | None | Smart meter; solar panels + battery required; EV compatible | Solar + battery setups |
We ranked these the way you actually live, not the way tariff pages pretend you live: total annual cost for a typical EV driver (think ~7,000 miles a year, with most charging done off-peak), then flexibility, then how much eligibility drama you have to wade through to get the deal.
And yes - rates move around with the market, so always check the latest unit rates before you jump.
Congrats - you’ve bought a car powered by electricity. Now don’t go charging it on peak-rate juice like it’s 1998.
If you’re ready to start saving money on charging your car, visit Octopus Energy's website to check your eligibility and current rates in your area.
[1] Best EV tariff for smart charging
Octopus Intelligent Go is the standout if you want “set it and forget it.”
You plug in, tell it when you need the car ready, and it handles the schedule - sometimes even sprinkling in extra cheap slots when the grid’s swimming in spare power.
It’s not just about saving money; it’s about saving brain cells.
The only catch is compatibility, your EV or charger needs to play nicely with their setup, so check the supported list before you commit.
Octopus Intelligent Go - basic tariff details:
Tariff type: Smart EV time-of-use tariff (charging scheduled via the Octopus app)
Cheap rate window (whole home): 11:30pm–5:30am (plus potential additional scheduled smart slots)
Off-peak rate: from ~7.5p/kWh (varies by region/postcode - check your quote)
Peak/day rate: varies by region (this is what can make or break it for high daytime users)
Standing charge: varies by region
Eligibility: smart meter required + compatible EV or smart charger
Best for: people who can charge mostly off-peak and want maximum savings with minimum effort
Watch outs: compatibility requirements; “charge now” overrides can land on peak pricing; always compare total annual cost, not just the cheap rate
[2] Best EV tariff for a fixed cheap window
If you’d rather keep it simple, E.ON Next Drive (or tariffs like it) gives you a long overnight window at a low rate - ideal if you don’t want smart charging, don’t have compatible kit, or just prefer being in control.
The trade-off is the classic one: the day rate can be punchy, so if your household uses loads of electricity during daytime (WFH, tumble dryer addiction, that sort of thing), do the maths before you celebrate.
E.ON Next Drive - basic tariff details:
Tariff type: EV time-of-use (fixed off-peak window)
Cheap rate window: 7 hours overnight (check current times/rates in your quote)
Off-peak rate: varies by region/postcode (usually the headline draw)
Peak/day rate: varies by region (often higher than “normal” tariffs - key watch-out)
Standing charge: varies by region
Eligibility: typically smart meter recommended/required for accurate time-of-use billing
Best for: drivers who can reliably charge overnight and want simple, manual control
Watch outs: higher daytime rate; standing charge; savings depend on how much of your household use stays on peak
[3] Best if you’ve got solar + a home battery
This is where things get spicy.
With Octopus Flux, you can charge cheap overnight, use your battery to cover expensive daytime electricity, and export solar at higher-value times for credit.
It’s basically energy “buy low, sell high” - and your EV benefits automatically because it becomes part of the same cheap-energy ecosystem.
If you’ve got a compatible battery system, it can feel like you’re gaming the system…legally.
Octopus Flux - basic tariff details:
Tariff type: Time-of-use import + export tariff designed for solar + home battery households
How it works: different rates for importing electricity at different times, and different rates for exporting solar back to the grid at different times
Best for: homes with solar panels + a battery (EV optional, but a great “bonus load” to optimise)
Eligibility: typically needs a smart meter and an export-capable solar setup (often with an export meter / MPAN)
Watch outs: it only really shines if you can shift import/export to the right times; without a battery it’s usually less impressive; always compare total annual cost and export earnings together, not in isolation
Rates/windows: vary by region and can change, so use your Octopus quote for the exact import/export rates and time bands
How to choose the right EV tariff
Step one: can you shift most charging to overnight?
If yes, an EV tariff is usually a no-brainer - the savings land quickly.
If not, don’t bin the idea, just be ruthless: check the peak/day rate, because that’s the bit that can quietly batter your overall bill.
Step two: smart charging or a fixed cheap window?
Smart charging is the easiest route to “maximum savings with minimum effort.”
You plug in, set a ready-by time, and the supplier schedules charging for cheaper (often greener) slots.
The only downside is compatibility - if your EV/charger/app setup is a bit old-school, you might not get invited to the party.
Fixed-window tariffs are more plug-and-play. You get a set block of cheap electricity overnight and you control charging yourself. Simple.
Just keep one eye on the day rate and the standing charge, because those are what sneak up and ruin a “cheap overnight” headline.
Step three: got solar and/or a home battery?
Now you can start doing the smug stuff.
The play is: charge the battery off-peak, use it through the day to avoid peak rates, and export solar when electricity’s worth more.
Tariffs like Flux can make this feel like running a tiny power station from your kitchen - buy low, use smart, sell high.
The three numbers that matter (and the one people forget):
Off-peak unit rate: this is your EV charging “fuel price.”
Peak/day unit rate: this is where bill shocks live.
Standing charge: the daily toll for existing.
The one people forget - how much of your normal household electricity gets stuck on the expensive rate - because your EV isn’t the only hungry beast in the house.
Worked example: what could you save?
Let’s keep it simple and realistic.
Say you drive 7,000 miles a year in an EV averaging 4 miles per kWh. That’s about 1,750 kWh of charging a year (7,000 ÷ 4).
On the Ofgem April–June 2026 price-cap baseline of 24.67p/kWh, that electricity would cost roughly £432/year for your EV charging (1,750 × £0.2467).
Now switch to a strong EV tariff where most charging lands off-peak - for example, 7.5p/kWh overnight - and that drops to about £131/year (1,750 × £0.075).
That’s a headline saving of roughly £301/year…if you charge almost entirely off-peak.
Real life’s messier, so assume a bit of “peak creep” (the odd top-up at the wrong time, or your household using more on the higher day rate).
Even then, most people still come out comfortably ahead - often in the ballpark of £200–£250/year.
Rates change, and your results depend on your day vs night usage, so double-check today’s unit rates and run your numbers before switching.
Supplier calculators can help - just don’t let a cheap night rate distract you from a savage daytime one.
Common gotchas (the stuff that ruins savings)
[1] Peak rates that are higher than you expect
Some tariffs give you a lovely cheap night rate… then whack the daytime rate up into the “ouch” zone.
If your home uses loads of electricity during the day (WFH, cooking, tumble dryer, heat pump, kids, chaos), your EV savings can get eaten alive.
[2] Standing charges that nibble away at savings
That daily standing charge hits whether you charge or not.
If you’re a light driver (or mostly charge at work), a tariff with a chunky standing charge can turn “big savings” into “meh, basically break-even.”
[3] Smart tariff compatibility
Smart tariffs are brilliant when they work. But not every car, charger, or setup is supported - so check compatibility first, or you’ll end up doing manual scheduling like it’s a part-time job.
[4] Exit fees and “intro” deals expiring
Fixed deals can slap you with exit fees if you leave early. And some offers look great…right up until the “for 3 months only” bit kicks in. Read the boring part before it reads your wallet.
[5] Economy 7 and legacy meter weirdness
If you’re on old Economy 7 (or have a meter that belongs in a museum), things can get messy.
A smart meter usually makes switching and tracking much cleaner - otherwise you’re half guessing and half hoping.
How to switch EV tariff (without pain)
Check your smart meter status. If you don’t have one, most suppliers will install one when you switch (eligibility varies).
If you want smart charging, confirm compatibility first (EV/charger/app) before you fall in love with the headline rate.
Grab your last 2–3 bills and get a feel for your day vs night usage pattern.
Compare the total annual cost, not just the off-peak rate - include peak rate and standing charge, because that’s where the traps live.
Switch via the supplier, then set your charging schedule (or smart settings) and run one test charge to make sure the cheap window is actually being used.
Next Steps For Your EV Charger Journey:
When planning to install an EV charger for your home, there are several important factors to consider. Make sure to refer to the following guides to help you make informed decisions:
To dive deeper into these topics, head over to our advice section or check out our YouTube channel for informative videos.
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