Cost to charge a BYD Dolphin
A full charge at home costs about £5.11 on an off-peak EV tariff, or £17.69 on a standard tariff.
BYD Dolphin charging costs at a glance
| Where you charge | Per kWh | Full charge | Per mile | 7,000 miles |
|---|---|---|---|---|
| Intelligent Octopus Go (off-peak) | 7.6p | £5.11 | 2.2p | £152 |
| Standard tariff (price cap) | 26.32p | £17.69 | 7.5p | £525 |
| Public charger (under 50kW) | 54p | £32.67 | 13.8p | £969 |
| Public rapid charger (50kW+) | 77p | £46.59 | 19.7p | £1,382 |
| Typical petrol car (45mpg) | – | – | 17.7p | £1,238 |
Based on a 60.5kWh usable battery and about 3.9 miles per kWh (roughly 236 miles of real-world range). Home figures include about 10% charging losses. Approximate figures; yours will vary.
The cheapest way to charge a BYD Dolphin
Charging at home overnight on an EV tariff is the cheapest option by a long way. Over 7,000 miles a year, moving from a standard tariff to an off-peak rate of 7.6p per kWh would cut the cost of charging the BYD Dolphin from about £525 to about £152, a saving of roughly £373 a year.
Check before you switch: Intelligent Octopus Go needs a smart meter and a compatible car or charger. The daytime rate may differ from a standard tariff, so it best suits people who do most of their charging overnight. How the tariff works →
Check Octopus EV Tariff Prices →
BYD Dolphin vs petrol
A typical petrol car doing 45mpg costs about 17.7p a mile at 175p a litre. The BYD Dolphin costs about 2.2p a mile on an EV tariff. Over 7,000 miles that is about £1,086 less in fuel. Full EV vs petrol comparison →
BYD Dolphin charging FAQs
How much does it cost to fully charge a BYD Dolphin at home?
About £17.69 on a standard tariff at 26.32p per kWh, or about £5.11 on an off-peak EV tariff at 7.6p per kWh. That is for the 60.5kWh usable battery, including charging losses.
How much does a BYD Dolphin cost per mile?
Roughly 2.2p a mile on an off-peak EV tariff, 7.5p a mile on a standard tariff and 19.7p a mile using public rapid chargers, based on about 3.9 miles per kWh.
How far will a BYD Dolphin go on a full charge?
Around 236 miles in typical mixed driving. Expect less in winter and at motorway speeds, and more in warm weather around town.
How much does it cost to charge a BYD Dolphin at a public charger?
A full charge costs about £32.67 at an average slower public charger (54p/kWh) and about £46.59 at an average rapid charger (77p/kWh). In practice you would usually top up from 10% to 80% rather than fill from empty.
Charge for 7.6p per kWh instead of 26.3p
Intelligent Octopus Go is built for EV drivers. Switch through our referral link and you also get £50 credit on your account.
Get an Octopus Quote + £50 Credit →You need a compatible car or charger and a smart meter. Link checked 5 October 2026.