SO EV ISN'T AVAILABLE AT THE MOMENT
We’ve temporarily paused our So EV tariff for new and renewing customers, due to rising wholesale gas prices. Existing So EV customers aren’t affected.
The market’s moving fast and we’re committed to keeping you informed. Check our dedicated updates page for the latest news on our rates and tariffs.
The Simple way to charge your EV
Designed to bring you 24 months of convenient EV charging with 100% renewable electricity guaranteed.
Great value EV charging
Our overnight rate means you can charge your EV for just 8.8p per kWh – that's around 1.9p per mile.¹
power your home For less
Make the most of our super-low overnight rate by running high-energy appliances while you sleep.
Universally compatible
Unlike other EV tariffs, So EV works with any EV and any charger. All you need is a smart meter.
600 miles for under £12
That's² a saving of 89% against public charging³ and 74% against charging on our standard So Flex tariff.⁴
your 3-step solution to better eV charging
Join So EV and make the most of low‑cost overnight charging.
start your switch
Click the Switch to So EV button, follow the instructions and choose our So Flex tariff.⁵
join So energy
Sit back and relax while we get your supply sorted. This takes around 7 working days.*
Switch to So EV
Once you're on supply, we'll let you know and you can switch to So EV.
*Please make sure to tick I'd like to hear about rewards and receive updates from So Energy when completing your Personal Details during sign up. Without this we can't send you an invite to join So EV when your switch is complete.
Install an EV charger for just £99 upfront
Still need a charger? Own a sleek, solar-compatible charger with year-round expert support for just £99 upfront, and pay the rest after installation.
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We're proud to be rated as Excellent by our customers.
Frequently Asked Questions
Is So EV compatible with my EV?
Is So EV compatible with my EV charger?
do i need a smart meter to get the so EV tariff?
Can I switch to so EV before the end of my fixed-rate contract?
can i charge more than one EV?
how long does it take to switch to so eV?
Stay Plugged Into Our Latest News & Views
We know that being an energy supplier is about more than keeping the lights on. Explore our blogs for more insights.
Which Energy Tariff is Right For Me?
Learn how to choose the best So Energy tariff for your needs with our guide to tariff types and pricing, plus tools to help you save on energy bills.
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EV Charger Installation: What You Need to Know
Considering installing an EV charger at home? Read about the benefits, costs, installation steps and how we can help.
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Introducing our new EV Tariff: So EV!
Learn about our new tariff for EV owners. Find out the benefits of a tailored tariff and whether you’re eligible.
Are electric cars better for the environment?
Learn how EVs are better for the environment, even when factoring in manufacturing costs. We also share important considerations for charging your EV.
How Long Do Electric Car Batteries Last?
Discover how long EV batteries last, why they degrade, and what you can do to prolong the life of your EV battery.
- The 1.9p per mile calculation is based on the Tesla Model Y, which has an EV efficiency of 0.22 kWh per mile. Multiplying 0.22 by So EV's off-peak rate of 8.8p per kWh (between the hours of midnight and 5am) results in the cost of 1.94p per mile (which we round down to 1.9p per mile). We use the Tesla Model Y because it was the UK's best-selling car in 2025.
- The 600 miles for under £12 calculation is based on a Tesla Model Y efficiency rating of 4.5 miles per kWh. Actual efficiency varies depending on EV make and model, seasonal conditions, driving style, and charging rate. Our estimate uses the So EV charging rate of 8.8p per kWh, offered between 12am and 5am. The precise calculation is 599 miles for £11.70.
- A public Rapid charger costs EV drivers, on average, £0.82 per kWh. So Energy’s off-peak tariff rate is 8.8p per kWh. Calculations: So Energy off-peak cost per mile of 1.9p and public Rapid charging cost per mile of 18.2p show that you’ll save 89% versus public charging when combining your charger with our EV tariff.
- The 74% savings claim vs charging on a standard variable tariff is based on our So Flex electricity unit rate of £0.3353 per kW vs the So EV electricity unit rate of £0.088 per kW.
- We ask you to choose So Flex first, so we can make sure your smart meter is sending half-hourly reads. Once it's checked, we can switch you to So EV. This takes about 7 days.