One of the biggest reasons people switch to an electric car is the running cost savings. But how much cheaper is it really to charge at home compared to filling up with petrol or diesel? As EV charger installers in Rotherham, we get asked this question every week. Here is a real-world breakdown of the numbers in 2026.

Home Charging Costs in 2026

The average UK electricity rate in 2026 is around 24p per kWh on a standard tariff. A typical electric car with a 60kWh battery costs roughly £14.40 to charge from empty to full at home. That full charge gives you approximately 200 miles of range. That works out at about 7p per mile.

But here is where it gets interesting. If you are on a smart energy tariff like Octopus Go or Intelligent Octopus, you can charge overnight at around 7p per kWh. That same 60kWh charge drops to just £4.20 for 200 miles — roughly 2p per mile. Customers across Wickersley, Maltby, and Swinton who use an Ohme charger paired with Intelligent Octopus are seeing these figures consistently.

How Does That Compare to Petrol?

Petrol in 2026 is averaging around £1.40 per litre. A typical family car doing 40 miles per gallon costs roughly 16p per mile. For a driver doing 10,000 miles a year — which is average — here is how the annual fuel costs compare.

Petrol at 16p per mile comes to £1,600 per year. Home EV charging on a standard tariff at 7p per mile comes to £700 per year. Home EV charging on a smart overnight tariff at 2p per mile comes to just per year. That is a saving of between and £1,400 every single year. Over the typical 3-year ownership of a car, you save between £2,700 and £4,200 on fuel alone.

What About Public Charging?

Public rapid chargers are significantly more expensive than home charging. Most public networks charge between 50p and 79p per kWh. That same 60kWh charge that costs £4.20 at home overnight would cost between £30 and £47 at a public rapid charger. This is why having a home charger is such a game-changer — you charge cheaply overnight and only use public chargers on long journeys.

For drivers in Mexborough, Dinnington, and Denaby where the nearest public rapid chargers require a trip into town, home charging eliminates that inconvenience entirely. You plug in when you get home and wake up to a full battery every morning.

Can Solar Panels Cut Costs Further?

If you have solar panels, a Zappi charger can divert surplus solar energy to charge your car for free. Depending on your panel output and driving habits, you could charge your car entirely from solar power during the summer months. Even in winter when solar output drops, a Zappi paired with an overnight tariff gives you the best of both worlds. We install Zappi chargers across Wath upon Dearne, Kiveton Park, Barnburgh, and Hickleton for customers who want to maximise their solar investment.

Does My Electricity Supply Need Upgrading?

Most homes in Rotherham and South Yorkshire have a 100-amp supply, which is more than enough to run a 7kW EV charger alongside your normal household usage. If your home has a lower supply (some older properties have 60-amp), we may need to arrange an upgrade with Northern Powergrid. We check this as part of every survey — if an upgrade is needed, we handle the entire process for you.

Your consumer unit also needs to have capacity for the additional circuit. If your fuseboard is old or full, we can upgrade it at the same time as the charger installation.

The Bottom Line

Charging an EV at home is between 56 percent and 87 percent cheaper per mile than running a petrol car, depending on your electricity tariff. A home charger installation pays for itself within the first year through fuel savings alone. And with smart chargers and overnight tariffs, you can keep your motoring costs to just a year.

Get Your Home EV Charger Installed

We install all major EV charger brands across Rotherham, Wickersley, Maltby, Mexborough, Dinnington, Swinton, Wath upon Dearne, Kiveton Park, Barnburgh, Denaby, Hickleton, Barnsley, Doncaster, and Sheffield. Every installation is NAPIT-certified with full electrical testing and documentation.

WhatsApp us for a free quote or call 07817 171954