Scottish Power EV Tariff 2026: EV Saver vs Competition
Scottish Power EV Saver charges 8.5p/kWh overnight in 2026 — competitive, but the 5-hour window is tighter than Octopus, EDF, or E.ON's.
Scottish Power's EV Saver tariff is the supplier's main pitch to EV drivers in 2026 — an overnight off-peak rate of 8.5p/kWh between midnight and 5am. That's competitive against the wider UK market but lands behind Intelligent Octopus Go and matches the supplier's own EV Optimise smart-charging product. Whether it's the right pick depends less on the headline rate and more on the shape of the off-peak window and where you live.
Scottish Power EV Saver: the key facts
EV Saver is a time-of-use tariff. The rate you pay depends on when your electricity flows: a low off-peak rate during the overnight window, and a higher peak rate the rest of the time. This is the dominant structure for UK EV tariffs in 2026 — it works because almost all home charging happens at night, when grid demand is low.
The April 2026 v2 terms (published as SMARTEV_B26A) confirm the headline numbers:
- Off-peak rate: 8.5p per kWh, midnight to 5am
- Peak rate: around 31.44p per kWh (the rest of the day)
- Standing charge: applies on top, varies by region
- Eligibility: single-rate smart meter sending half-hourly readings, monthly Direct Debit
One distinction worth flagging up front: EV Saver is a whole-home off-peak window. Anything drawing power between midnight and 5am — the EV, the heat pump, the dishwasher you delayed, the immersion heater — gets the 8.5p rate. That's an advantage over smart-charging-only products where only the car's draw qualifies.
How EV Saver compares to other UK EV tariffs in 2026
The April 2026 Ofgem cap reset reshaped the EV tariff landscape. Intelligent Octopus Go came down to roughly 8p/kWh off-peak, the British Gas / EDF / E.ON Next trio settled at 9p/kWh, and Scottish Power's 8.5p slotted in between. Headline rate is only part of the story though — the length and timing of the off-peak window matters at least as much.
| Scottish Power EV Saver | Intelligent Octopus Go | Octopus Go | EDF GoElectric | British Gas EV Power | E.ON Next Drive | |
|---|---|---|---|---|---|---|
| Off-peak rate | 8.5p/kWh | ~8p/kWh | ~9.5p/kWh | ~9p/kWh | ~9p/kWh | ~9p/kWh |
| Off-peak window | 5 hours (00:00-05:00) | 6 hours (23:30-05:30) | 4 hours (00:30-04:30) | 7 hours (23:00-06:00) | 5 hours (00:00-05:00) | 7 hours (00:00-07:00) |
| Type | Whole-home time-of-use | Whole-home + smart scheduling | Whole-home time-of-use | Whole-home time-of-use | Whole-home time-of-use | Whole-home time-of-use |
| Smart scheduling | No | Yes (extra cheap periods) | No | No | No | No |
OVO Charge Anytime is structurally different and doesn't fit the table cleanly. It's not a whole-home cheap window — instead it's a pay-as-you-go smart-charging credit (around 14p/kWh applied to car draw only) or a monthly plan product on top of a regular home tariff. Useful if you can't get a time-of-use tariff in your area, but rarely the cheapest option if you can.
Who Scottish Power EV Saver makes sense for
Existing Scottish Power customers in dominant DNO regions
Scottish Power is the default historic supplier across the Manweb DNO region (North Wales, Merseyside, Cheshire) and most of southern/central Scotland. If you're already on a Scottish Power non-EV tariff, switching to EV Saver is faster than changing supplier — the smart meter and account infrastructure are already in place.
Modest overnight chargers (under 35 kWh per session)
A 7kW home charger delivers roughly 35 kWh in a 5-hour off-peak window. That's a typical weekly top-up for a 35-50 mile daily commute. If your routine fits inside that window, EV Saver's 8.5p rate is genuinely competitive.
Households that shift other loads overnight too
Because EV Saver applies to the whole home between midnight and 5am, anyone running a heat pump in the cheap window, a delayed dishwasher cycle, or an immersion heater on a timer captures the off-peak rate on those loads too. Smart-charging-only products don't offer this.
Where EV Saver falls short
The 5-hour off-peak window is the main constraint. For a household charging a long-range EV from near-empty (75-80 kWh), or a two-EV household sharing one charger, the window often runs out before both cars finish. EDF GoElectric's 7-hour window (23:00 to 06:00) and E.ON Next Drive's 7-hour window (00:00 to 07:00) give more flexibility for that profile.
The other gap is smart scheduling. Intelligent Octopus Go's smart-charging integration unlocks extra off-peak periods when grid conditions allow — typically taking the effective off-peak rate down further on days with high wind generation. EV Saver doesn't do this; you get the fixed 5-hour window and nothing more.
Finally, the peak rate at around 31.44p/kWh is towards the higher end of UK suppliers. If a significant share of your usage happens outside the off-peak window (e.g. you work from home and run loads through the day), the higher peak rate eats into the off-peak savings. Run the maths on your specific usage shape before switching.
EV Saver vs EV Optimise: which Scottish Power product?
Scottish Power runs two distinct EV products and the naming is easy to confuse. EV Saver is the time-of-use tariff described above. EV Optimise is a separate smart-charging product — closer in structure to OVO Charge Anytime than to a whole-home tariff. It charges 8p/kWh during smart-scheduled sessions but only on the car's draw; the rest of the home stays on the parent tariff.
The decision hinges on what else runs overnight. If only the car charges in the cheap window, EV Optimise's 8p rate beats EV Saver's 8.5p. If you also run a heat pump, immersion heater, dishwasher, or other significant overnight load, EV Saver's whole-home structure usually nets ahead because those loads also get 8.5p instead of the peak rate.
Switching: requirements and process
Confirm smart meter eligibility
EV Saver requires a single-rate smart meter capable of sending half-hourly readings. If your meter is on a SMETS1 firmware version that doesn't support this, Scottish Power will arrange an upgrade — adds 2-4 weeks to the switch.
Set up monthly Direct Debit
EV Saver is Direct Debit only. Quarterly billing and prepayment customers aren't eligible — switch billing method first if needed.
Apply via Scottish Power's EV Saver page
New and existing customers apply through the same portal. Existing customers transition between tariffs in 14-28 days; switchers from other suppliers take 5-21 days under the standard Ofgem switching guarantee.
Verify the off-peak window in your account
After switching, check your account dashboard or app to confirm the 00:00-05:00 off-peak window is active. Smart meter teething issues occasionally delay this; if usage isn't billing at off-peak rates after the first full week, raise it with Scottish Power immediately.
Frequently asked questions
Q01Is Scottish Power EV Saver cheaper than Intelligent Octopus Go?
Slightly more expensive on the headline rate (8.5p vs ~8p), and IOG also offers a longer 6-hour window plus smart scheduling that can unlock extra cheap periods. EV Saver only beats IOG when you can't get IOG in your area or you have a strong existing-customer reason to stay with Scottish Power.
Q02Do I need a specific EV or charger to qualify for EV Saver?
No — EV Saver is a whole-home tariff, not a smart-charging product, so it works with any EV and any home charger. The only requirement is a compatible smart meter and monthly Direct Debit billing.
Q03What's the difference between EV Saver and EV Optimise?
EV Saver gives the whole home 8.5p/kWh for 5 hours overnight. EV Optimise is a smart-charging add-on at 8p/kWh that only applies to the car's draw during scheduled charging sessions, with the rest of the home staying on the parent tariff. EV Saver usually wins for households running other overnight loads (heat pump, immersion); EV Optimise wins for car-charging-only households.
Q04Can I get EV Saver if I'm on a fixed-term tariff with another supplier?
Yes, but you may pay an exit fee to leave the current tariff. Within 49 days of the current contract end date, exit fees are waived under Ofgem rules. Outside that window, weigh the exit fee against expected off-peak savings — usually 6-12 months to break even on a £75 exit fee for an average EV household.
Q05Is the off-peak rate guaranteed to stay at 8.5p?
No — EV Saver is a variable tariff, so rates can move with each Ofgem price cap quarterly update. Historic pattern suggests Scottish Power tracks the cap closely; expect rate changes in line with broader market movements rather than out-of-cycle hikes.