Public charging costs nearly three times more per mile than home charging in 2026
If you own an electric vehicle, the single biggest recurring cost is electricity. Where you charge that electricity determines how much you pay per mile by a wide margin. At 2026 average rates, charging a typical EV at home costs roughly 6p–8p per mile, while public rapid charging runs 15p–22p per mile, and ultra-rapid charging can exceed 30p per mile.
Home EV charging costs 6p–8p per mile in 2026, while public rapid charging costs 15p–22p per mile. Public ultra-rapid chargers can exceed 30p per mile, making home charging the cheapest option for most UK drivers.
- Home charging costs 6p–8p per mile at 2026 rates.
- Public rapid charging costs 15p–22p per mile.
- Ultra-rapid charging exceeds 30p per mile.
- Driving 100 miles costs £17 more on public rapid chargers.
- Check your home tariff and charger type to maximise savings.
- Public charging costs nearly three times more per mile than home charging in 2026
- Average home charging cost per mile in 2026
- Average public charging cost per mile in 2026
- Quick numbers, home vs public charging in a glance
- The cheapest way to charge an EV at home in 2026
- Public charging is the only option for 33% of UK households
- How to verify a home EV charger installer in 2026
The gap equates to approximately £17 per 100 miles driven on public rapid chargers compared with home charging, based on a typical EV efficiency of 3.75 miles per kWh (DESNZ Electric Vehicle Charging Statistics, February 2026; Zap-Map Public Charging Price Index, Q1 2026). For drivers who rely exclusively on public charging, this adds hundreds of pounds to annual running costs compared with home charging.
Average home charging cost per mile in 2026
The UK average domestic electricity unit rate in early 2026 is 24.5p per kWh under the Ofgem price cap for a typical household paying by direct debit (Ofgem Price Cap – Typical Domestic Consumption Values, January 2026). A typical EV achieves 3.5 to 4.0 miles per kWh in real-world driving, not the more optimistic WLTP test cycle figure (What Car? EV Real Range data, 2026 edition).
Dividing the unit rate by the midpoint efficiency of 3.75 miles per kWh gives a cost of 6.5p per mile. The rounded range is 6p to 8p per mile, depending on driving style, weather, and the specific model. This makes home charging the cheapest option for the vast majority of UK EV owners who have off-street parking.
Average public charging cost per mile in 2026
Public charging costs vary significantly by charger speed and network operator. The Zap-Map Public Charging Price Index for Q1 2026 (published April 2026) shows the following typical per-kWh rates:
- Public slow (7 kW) chargers: 30p–45p per kWh, equating to 8p–12p per mile.
- Public rapid (50 kW) chargers: 55p–65p per kWh, equating to 15p–18p per mile.
- Public ultra-rapid (150 kW+): 65p–79p per kWh, equating to 18p–22p per mile.
These rates assume the same real-world efficiency of 3.75 miles per kWh. Some ultra-rapid chargers on motorway services charge above 80p per kWh, pushing the cost beyond 22p per mile. The gap between home and public charging has widened since 2024 because domestic electricity unit rates rose more slowly than commercial rates for charge point operators (DESNZ Electric Vehicle Charging Statistics, February 2026).
Quick numbers, home vs public charging in a glance
| Metric | Home charging | Public rapid (50 kW) | Public ultra-rapid (150 kW+) |
|---|---|---|---|
| Cost per kWh | 24.5p | 60p | 72p |
| Miles per kWh (real-world) | 3.75 | 3.75 | 3.75 |
| Cost per mile | 6.5p | 16p | 19p |
| Cost per 100 miles | £6.50 | £16.00 | £19.00 |
| Annual cost for 8,000 miles | £520 | £1,280 | £1,520 |
Sources: Ofgem price cap, January 2026 (home rate); Zap-Map Q1 2026 (public rates); What Car? real-world efficiency data, 2026 (miles per kWh).
The cheapest way to charge an EV at home in 2026
A standard domestic tariff at 24.5p per kWh is already far cheaper than public charging, but you can reduce the cost further by switching to a smart time-of-use tariff. Economy 7 or dedicated EV tariffs such as Octopus Intelligent Go or EDF Drive offer overnight rates as low as 7p to 10p per kWh (GOV.UK energy price comparison page, March 2026).
At 7.5p per kWh and 3.75 miles per kWh, the cost per mile drops to 2p. For an 8,000-mile annual mileage, this works out at roughly £160 per year, about one-third of the cost on a standard domestic tariff and one-eighth of public rapid charging. However, these tariffs require a smart meter and a dedicated EV tariff, and approximately 60% of UK homes with off-street parking qualify (DESNZ Smart Meter Statistics, February 2026).
how to switch to an EV electricity tariff
Public charging is the only option for 33% of UK households
Not every household can charge at home. Approximately 33% of UK households, 8.2 million, have no off-street parking and cannot install a home charger (DESNZ Electric Vehicle Charging in Residential Streets, research report January 2026). These households rely on on-street residential chargers, typically 7 kW units at 30p–45p per kWh, or public rapid and ultra-rapid chargers.
For this group, the cost gap to home charging is unavoidable. Some councils offer subsidised on-street charging at 20p–25p per kWh, particularly in London boroughs, but these schemes are not universal. The cost disadvantage is a structural issue for renters and flat dwellers that no tariff switch can solve.
How to verify a home EV charger installer in 2026
If you can install a home charger, choosing the right installer is critical for safety and for accessing grants. Installers must be MCS-certified (Microgeneration Certification Scheme) and registered with TrustMark to qualify for the EV Chargepoint Grant 2026 (GOV.UK EV Chargepoint Grant – installer requirements, updated February 2026).
Check the MCS register at mcscertified.com for current certification, and cross-reference with TrustMark at trustmark.org.uk. Also confirm the installer is on your electricity supplier’s approved list to qualify for tariff-specific benefits such as off-peak charging credits. The MCS Standards for Domestic EV Charging (2026 edition) set out the technical requirements for safe installation (MCS Standards for Domestic EV Charging, 2026 edition).
MCS certification explained for homeowners
Frequently Asked Questions
Home EV charging costs 6p to 8p per mile in 2026. This is based on the Ofgem price cap unit rate of 24.5p per kWh and a typical EV efficiency of 3.75 miles per kWh.
Public EV charging costs 8p to over 30p per mile depending on the charger speed. The Zap-Map Public Charging Price Index for Q1 2026 shows slow chargers at 8p–12p per mile and ultra-rapid chargers exceeding 30p per mile.
Yes, home charging is significantly cheaper. Home charging costs 6p–8p per mile, while public rapid charging costs 15p–22p per mile, making public charging up to three times more expensive per mile.
Charging an EV at a public rapid charger (50 kW) costs 55p–65p per kWh in 2026, according to the Zap-Map Public Charging Price Index. This equates to 15p–18p per mile for a typical EV.
The average cost per mile for an EV in the UK in 2026 is 6.5p when charging at home, based on the Ofgem price cap rate. Public charging costs range from 8p to over 30p per mile depending on the charger speed.
