Electrify your life: is switching to an electric car actually worth it?

An illustration of an EV driving down a road with rolling hills and a sunset

Key takeaways

  • EVs are usually cheapest to run when charged at home on a smart tariff.
  • Some of the biggest savings come when you charge.
  • Home charging unlocks the full financial benefits of going electric.
  • If you don’t have a driveway and rely mainly on rapid public charging, savings may be smaller.
  • Electrifying your life works best when your car, charger and tariff operate as one connected system.

Switching to an electric car can be cheaper and simpler than running a petrol vehicle, but it gets even better if you can charge it cheaply on a smart EV tariff. If you stay on a standard electricity tariff or rely mostly on rapid public charging, the savings are smaller right now and it may not feel worth it. The real benefits don't come from the car alone - they come from linking your car, charger and tariff into one intelligent system.

What ‘electrify your life’ actually means

Electrifying your life doesn’t mean replacing everything at once. It means connecting the upgrades you make so your car and home energy work smarter together.

For many people, the journey looks something like this:

  1. Drive electric – smoother driving, lower maintenance and no petrol stops.
  2. Charge smart – this is where the real running cost savings ramp up.
  3. Automate it – your car charges itself when electricity is cheapest.
  4. Connect more over time – solar, batteries or heat pumps can build on the same system.

The result isn’t just lower running costs. It’s a home energy setup that requires fewer decisions and gives you more control over how and when you use energy..

When you link your car, charger and tariff you unlock savings and convenience. Your car can talk to your energy provider to find the cheapest, greenest times to charge and set its own schedule, without you lifting a finger.

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The reality of home charging

EV charger

If you’re worried about the upfront costs of setting up an EV for home charging, read on. You need to be prepared for:

  • The smart charger: This will set you back about £1,000, including installation. One way around this is to lease a car through Octopus EV, which will cover the cost of some chargers. Check with your provider of choice to see if they have a similar scheme.
  • Electrician fees: Some older homes will need a new fuse box to handle the increased load. Checkatrade estimates this would cost £485 on average.

The payoff: Once this initial setup is sorted, you say goodbye to volatile pump prices and hello to savings - plus a connected system that runs itself.

Electrifying your life isn’t just about being greener, it’s about being smarter.

The standard tariff trap

Covering 10,000 miles a year in an MG4 EV using a standard energy tariff to charge would cost roughly £771 (after April 1, this drops to £708). But it could be so much cheaper...

The smart tariff solution

A smart EV tariff is a special energy plan that tracks usage using a smart charger and offers significantly cheaper rates during certain off-peak hours (typically overnight).

Using one of these tariffs flips the economics of driving. Covering 10,000 miles in the MG4 EV on the Intelligent Octopus Go EV Saver tariff, which is exclusively available to customers who lease a car through Octopus EV, would cost about £257: an annual saving of £514.

Estimated Annual Running Costs:
EV: MG4 using smart tariff £257 annually
EV: MG4 using standard tariff £771
Petrol: VW Golf 1.5 TSI £1,625

Data as at March 24, 2026. Based on 40 mpg at £1.41/L (RAC). Smart tariff used is the Intelligent Octopus Go EV Saver.

The bottom line

You aren’t just saving money because “electricity is cheaper than petrol”. You’re saving because you’re using a smart tariff to shift when you use energy to times when power is cheap.

The green bonus

By connecting your car, charger and smart tariff, you are also supporting the wider energy system. Charging during off-peak hours often aligns with periods of high wind and solar generation, which supports a lower-carbon grid.

What changes (and what doesn’t) in your daily life

To understand how intelligent charging works in plain English, let’s look at what will actually change for you.

  • Old habit: realise you’re running low, detour to a petrol station, stand in the cold and pay a high price.
  • New habit: park at home, plug in the car and walk away. Your smart tariff charges the car when electricity is cheapest so you wake up with a full battery.
EV and grid illustration

When switching to an EV might not be worth it

1. You aren’t prepared to switch tariff

The problem: without a smart tariff, you won’t get the full financial benefits of electric charging.

The fix: in this situation, the only way to unlock the lower running costs is to move on to a smart EV tariff (like Intelligent Octopus Go or Intelligent Octopus Go EV Saver) so your car automatically charges when grid energy is at its cheapest. Over time, many drivers find the biggest benefit isn’t just cost — it’s no longer needing to think about refuelling at all.

2. You don’t have easy access to a charger

If you don’t have off-street parking, an electric car could make your life more complicated, unless you use the right workaround or are smart about public charging.

The problem: without home charging, you lose access to ultra-low overnight tariffs.

The fix: look into companies like Trojan Energy, which installs on-street charge points that allow you to access your home charging rate.

Car charging

The problem: you plan to rely heavily on ultra-rapid motorway chargers, which are pricey

The fix: it can still be worth switching even if you plan to rely on public charging, but you do need to switch your mindset to “destination charging”. Instead of waiting until you are empty, do top-ups at slower, cheaper chargers every time you’re parked at the supermarket or gym using universal charging apps like Zapmap or Octopus Electroverse. Covering 10,000 miles in the MG4 EV using solely rapid charging could cost £2,114 but if you switch that to slow charging, it’s £1,429.

The problem: there aren’t enough public chargers in your area.

The fix (sort of): The hard reality is that an EV may not be right for you right now if you don’t have a driveway and live in an area without enough public chargers. But time could fix even this problem. Public charging is expanding quickly (there are now over 118,000 public EV chargers across the UK, compared to roughly 61,000 fuel pumps). Check the map every few months and wait until the infrastructure catches up.

A simple checklist: are you ready to electrify your life?

Off-street parking Do you have a driveway to unlock smart tariffs?
Smart automation Are you willing to embrace an intelligent system to get the best financial benefits?
Initial costs Are you prepared for the set-up costs?
Public charging If you don’t have off-street parking, does your routine support public charging?

Ready to electrify even further? Solar and battery could be your next step, especially if you want more energy independence and predictability in your household budgets.

Published on 24th March 2026 by:

image of Nicki Slater-Arnold

Nicki Slater-Arnold

Writer

Hey I'm Constantine, welcome to Octopus Energy!

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