Intelligent Octopus Go: the UK's most popular EV tariff

Save £100s with Intelligent Octopus Go

Answer a couple of questions about your EV and home and we'll give you an estimate of how much you could save with the Intelligent Octopus Go savings calculator.

With Intelligent Octopus Go you'll save when charging your EV and on the energy use of your whole home with

• all smart charging at off-peak rates - no matter when

• 6 hours of cheap, green energy for your whole home every night

How much you'll save depends on how often you smart charge your EV and how much of your home's electricity you use during off-peak hours.

For example, considering the standard Octopus fixed tariff available in February 2026, an EV owner driving 7,000 miles/year could save £322 by switching to Intelligent Octopus Go.

Intelligent Octopus Go is the UK’s most popular EV tariff

Since we launched the UK’s first EV tariff Octopus Go in 2018, more and more EV drivers have switched to Octopus to charge their car for less.

In their latest State of the market report, Ofgem shared that 502k domestic customers were on a Smart Time of Use EV tariff in January 2024. More than half were with Octopus, and the majority of them charged with Intelligent Octopus Go.

You could save up to 86% vs public charging

A slow or fast charge (<50 kWh) with one of the UK’s public charging points costs an EV driver 54p/kWh on average (last checked February 2026). With Intelligent Octopus Go, you smart charge for only 7.5p/kWh and save 86%.

1 - 7.5/54 = 0.86 or 86%

You’ll save up to 70% when smart charging with Intelligent Octopus Go compared to a standard tariff

With Intelligent Octopus Go you can smart charge for only 7.5p/kWh. The average rate of a standard variable tariff, based on the January 2026 Ofgem energy price cap, is 27.69p/kWh.

1- 7.5/27.69 = 0.73 or 73%

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Your EV charger could pay for itself in a year if you switch from public charging to home charging on Intelligent Octopus Go

The average EV driver who relies only on public charging spends around £1,548 a year on charging.

C*D*B = 7,100 miles*0.307 kwh/mile *0.71 £/kWh = £1,547.59

With an EV home charger and a smart home tariff like Intelligent Octopus Go, you could pay as little as 7.5p per kWh when you smart charge your EV. This could bring your annual charging cost down to just £163.

C*D*E = 7,100 miles*0.307 kwh/mile *0.075 £/kWh = £163.48

That’s a saving of up to £1,385 every year on Intelligent Octopus Go against public charging. Our chargers range between £949 and £1099 with a standard installation and could pay for themselves in under 12 months.

Comparison assumes you drive 7,100 miles/year and currently charge only on public chargers vs. only smart charging at home for a maximum 6 hours a day with an Octopus EV charger (including standard installation, check if that works for your home) on Intelligent Octopus Go (check if you're eligible) at 7.5p/kWh smart charging rate. Actual savings vary.

A - £949 to £1099 Cost for standard Octopus EV Charger installation

B - £0.71 weighted average of public charging prices. Based on zapmap (75% at 76 p/kWh and 25% usage at 54 p/kWh).

C - 7,100 average annual mileage (gov.uk)

D - 0.307 kWh/mile average electric car efficiency (EV database)

E - 7.5p/kWh Intelligent Octopus smart charging rate