# So Energy EV Tariff: Rates, Requirements, and How to Switch Published: 2026-04-24 | Updated: 2026-10-01 | Source: https://www.bestchargers.co.uk/so-energy-ev-tariff/ > So Energy's So EV tariff charges 7.14p/kWh from midnight to 5am from 1 October 2026, with 100% renewable electricity. Rates, how it compares, and how to switch. So Energy's So EV tariff charges 7.14p per kWh from midnight to 5am from 1 October 2026, with 100% renewable electricity, a 12-month fix and no restrictions on car or charger. You need a smart meter, and new customers join So Energy's standard tariff first before moving to So EV. ## Quick answers **What is the So Energy EV tariff rate?** 7.14p/kWh between midnight and 5am from 1 October 2026 (7.5p including 5% VAT before then). **Does So Energy's EV tariff work with all electric vehicles?** Yes. So EV works with any UK-registered electric or plug-in hybrid car and any home charger. **Is So Energy a renewable energy supplier?** So EV and So Energy's fixed-rate tariffs are 100% renewable; its standard variable So Flex tariff is not. **How does So Energy's EV tariff compare to Octopus Intelligent Go?** So EV is cheaper per unit (7.14p vs 7.6p/kWh); Intelligent Octopus Go adds automated smart charging for compatible EVs and chargers. **Can I get So Energy if I do not have a smart meter?** You need a smart meter to access the EV tariff rate. Suppliers must install one free of charge on request. This page covers So Energy's current EV tariff rates, how it compares to other leading providers, and how to switch. --- ## So Energy EV Tariff: Key Details So Energy's So EV tariff offers a discounted overnight rate for customers who charge at home. The off-peak rate applies between midnight and 5am every day, giving you five hours of cheaper electricity for EV charging and whole-home overnight consumption. **Off-peak rate:** 7.14p/kWh (midnight–5am) **Off-peak window:** Midnight to 5am (5 hours) **Rate applies to:** Your whole home during the off-peak window **Day rate and standing charge:** Shown in your quote; So says the daytime rate is its current fixed-rate price **Contract:** 12 months fixed **Smart meter required:** Yes, with half-hourly readings **EV requirement:** Any UK-registered electric or plug-in hybrid car **Charger requirement:** Any home charger **Energy source:** 100% renewable electricity *Rates are correct as of October 2026 and include 0% VAT on household electricity, which applies until 31 March 2027; So Energy advertised the same rate as 7.5p/kWh including 5% VAT. Always verify the current rate directly with So Energy before switching.* --- ## How the So Energy EV Tariff Works So EV is a straightforward time-of-use tariff. There is no automated scheduling integration with specific EV models or charger brands: you set a charging timer on your vehicle or home charger to align with the midnight–5am window. This makes So EV simple to use with any EV and any charger. Set the timer once, and overnight charging runs at the cheaper rate every night without further adjustment. The whole-home off-peak rate means appliances running overnight (washing machines, dishwashers, tumble dryers, immersion heaters) also benefit from the reduced rate, not just your car. --- ## What Makes So Energy Worth Considering? ### Competitive off-peak rate At 7.14p/kWh overnight, So EV is one of the lowest rates available from UK suppliers; only EDF GoElectric (6.66p/kWh) is cheaper among the major EV tariffs we track. For comparison, Intelligent Octopus Go charges 7.6p/kWh, E.ON Next Drive Smart 8.1p/kWh and British Gas EV Power 9.5p/kWh. ### 100% renewable electricity So EV comes with 100% renewable electricity, as do all So Energy's fixed-rate tariffs. For EV drivers whose environmental credentials are part of their motivation to drive electric, charging on a renewable tariff reinforces those credentials. ### Universal compatibility Unlike Intelligent Octopus Go, which requires a compatible EV or smart charger, So EV works with any electric vehicle and any charger brand. No compatibility check, no app integration required. ### No complex product structure So EV is a standard time-of-use product. There are no monthly plans, no mileage allowances, and no bundled public charging credits. You pay for what you use at the applicable rate. --- ## How Much Can You Save? At 7.14p/kWh overnight versus the October 2026 price cap average of 26.32p/kWh, the reduction per unit is approximately 73%. For a driver covering 7,000 miles per year in a car consuming around 3.5 miles per kWh: - Annual charging requirement: approximately 2,000 kWh - Annual cost at the price cap average (26.32p): approximately £526 - Annual cost at the So EV rate (7.14p): approximately £143 - Annual saving: approximately £383 For higher-mileage drivers, or households running other appliances overnight on the cheap rate, savings are proportionally higher. Because So only shows its day rate in a quote, check that figure too if your household uses a lot of electricity during the day. *These figures are illustrative estimates. Actual savings depend on current tariff rates, your vehicle's real-world efficiency, and your overnight usage pattern. Verify current rates with So Energy before switching.* --- ## So Energy EV Tariff vs Other Providers | Tariff | Off-peak rate | Window | Hours | Smart scheduling? | |---|---|---|---|---| | EDF GoElectric | 6.66p/kWh | 11pm–6am | 7 | No | | So Energy So EV | 7.14p/kWh | Midnight–5am | 5 | Timer-based | | Intelligent Octopus Go | 7.6p/kWh | 11:30pm–5:30am, plus smart slots | 6 | Yes (compatible EVs/chargers) | | E.ON Next Drive Smart | 8.1p/kWh | 12am–6am, plus smart slots | 6 | Yes (supported EVs/chargers) | | British Gas EV Power | 9.5p/kWh | Midnight–5am | 5 | No | So EV's headline rate is competitive at the low end of the market. Its five-hour window matches British Gas and is shorter than E.ON Next's six hours and EDF GoElectric's seven. The absence of automated scheduling is a trade-off: manageable with a charging timer, but not as hands-off as Intelligent Octopus Go or E.ON Next Drive Smart for compatible vehicles. For a full comparison of all current EV tariffs, see our [EV tariff comparison hub](/ev-tariffs/), our [So Energy EV tariff review](/ev-tariffs/so-energy-ev-tariffs/) and the [EV smart tariff guide](/ev-smart-tariff-guide/). --- ## Requirements: What You Need Before Switching To join the So EV tariff, you need: 1. **A smart meter** with half-hourly readings. If you do not have one, So Energy or your current supplier can arrange installation free of charge. 2. **An electric or plug-in hybrid car** registered in the UK. 3. **A home EV charger or suitable outlet** for overnight charging. 4. **Eligibility check**: get a quote for your postcode at so.energy. --- ## How to Switch to So Energy 1. Visit so.energy and start your switch to So EV. New customers are put on So Energy's standard So Flex tariff first. 2. When signing up, tick the option to hear about rewards and updates; So Energy says it can't send your So EV invitation without it. 3. Your new supplier handles the transfer; your old supplier does not need to be contacted. The switch takes around five working days. 4. Once So Energy has confirmed your smart meter is sending half-hourly readings, it invites you to move to So EV, which takes about five more days. 5. Once live, set a charging timer on your EV or charger app to start charging at midnight and stop by 5am. Existing So Energy customers can move to So EV from another So fixed tariff at any time without an early exit fee. --- ## Frequently Asked Questions **What is the So Energy EV tariff rate?** So EV charges 7.14p/kWh between midnight and 5am from 1 October 2026. So Energy advertised it as 7.5p/kWh including 5% VAT; VAT on household electricity is 0% from 1 October 2026 to 31 March 2027 and So Energy applies the cut to all its tariffs. Rates are subject to change, so always verify the current rate directly with So Energy before switching. **Does So Energy's EV tariff work with all electric vehicles?** Yes. So EV works with any UK-registered car that the DVLA lists as electric or plug-in hybrid, and with any home charger. You need a smart meter sending half-hourly readings. **Is So Energy a renewable energy supplier?** So EV and all of So Energy's fixed-rate tariffs come with 100% renewable electricity. Its standard variable tariff, So Flex, is its only non-green tariff; new customers join So Flex first before moving to So EV. **How does So Energy's EV tariff compare to Octopus Intelligent Go?** Intelligent Octopus Go charges 7.6p/kWh from 23:30 to 05:30 and adds automated smart charging slots for compatible EVs and chargers. So EV is cheaper per unit at 7.14p/kWh, but has no automated scheduling: you set a timer manually. For drivers whose EVs are not compatible with Intelligent Octopus Go, So EV is a competitive alternative. Verify current rates with both suppliers before deciding. **Can I get So Energy if I do not have a smart meter?** You need a smart meter to access the EV tariff rate. If you do not have one, contact So Energy or your current supplier; they are legally required to install a smart meter free of charge on request. --- ## Key Takeaways - So EV charges 7.14p/kWh between midnight and 5am from 1 October 2026, one of the lowest overnight rates available from UK suppliers. - It works with any electric or plug-in hybrid car and any home charger; no brand-specific compatibility is required. - So EV comes with 100% renewable electricity and is fixed for 12 months. - New customers join So Flex first and are moved to So EV once their smart meter is sending half-hourly readings. - Always verify current rates directly with So Energy, as tariff rates change periodically. --- ## Useful Resources So Energy: So EV tariff https://www.so.energy/ev/ev-home-charging Energy Saving Trust: Smart charging for EVs https://energysavingtrust.org.uk/advice/smart-charging-electric-vehicles/ Ofgem: Energy price cap https://www.ofgem.gov.uk/