Discover Octopus Go 12M Fixed, the smart EV tariff designed for electric vehicle owners in 2026, offering super cheap electricity overnight. Fix your energy prices for 12 months and power your EV more affordably.
Welcome to 2026! As the UK continues its journey towards a greener future, electric vehicles (EVs) are becoming an increasingly common sight on our roads. If you're an EV owner, you'll know that charging your car at home is key to convenience and cost-effectiveness. That's where tariffs like Octopus Go 12M Fixed come into their own, offering a clever way to power your vehicle and your home for less.
What is Octopus Go 12M Fixed?
Octopus Go 12M Fixed is a dedicated smart energy tariff from Octopus Energy, specifically tailored for electric vehicle drivers. As the name suggests, it provides a 12-month fixed price for your electricity, giving you peace of mind against fluctuating energy markets throughout 2026. The standout feature of this tariff is its incredibly cheap off-peak electricity rate, available during a set overnight window.
With Octopus Go 12M Fixed, you benefit from a significantly reduced unit rate for electricity between 00:30 and 05:30 every night. This five-hour window is perfect for charging your EV, ensuring it's ready to go each morning without costing a fortune. Outside of these hours, you'll pay a standard unit rate, which means you need to be mindful of your daytime consumption to maximise your savings.
Key Features at a Glance:
- Smart EV Tariff: Designed with electric vehicle owners in mind.
- 12-Month Fixed Prices: Enjoy price stability for a full year on both your unit rates and standing charge.
- Super Cheap Overnight Electricity: A dedicated, low-cost window for charging (00:30 - 05:30).
- Requires a Smart Meter: Essential for tracking and billing your off-peak usage accurately.
- £50 Exit Fee: A fee applies if you decide to leave the tariff before your 12-month contract ends.
Who is Octopus Go 12M Fixed Best Suited For?
This tariff is a fantastic option for a specific type of energy consumer in 2026:
- Electric Vehicle Owners: This is the primary audience. If you own an EV and regularly charge it at home, Go 12M Fixed can lead to significant savings.
- Smart Meter Households: A functioning smart meter (SMETS1 upgraded or SMETS2) is a mandatory requirement to access this tariff.
- Those Who Can Shift Usage: Even if you don't have an EV, if you have other high-energy appliances (like a washing machine, dishwasher, or tumble dryer) that can be run overnight using smart timers, you could still benefit.
- Home Battery Owners: If you have a home battery storage system, you could use the cheap overnight window to fill your battery, then use that stored energy during peak daytime hours.
- Customers Seeking Price Stability: The 12-month fixed term offers protection against potential energy price rises throughout the year.
The Benefits of Octopus Go 12M Fixed
Choosing Octopus Go 12M Fixed in 2026 brings several compelling advantages:
- Massive Savings on EV Charging: This is the standout benefit. Charging your EV for just a few pence per kWh overnight can drastically reduce your motoring costs compared to public chargers or standard domestic rates.
- Predictable Energy Bills: Fixing your unit rates and standing charge for 12 months provides certainty, making it easier to budget for your energy expenses.
- Support for a Greener Lifestyle: By charging your EV overnight, you're often utilising electricity when demand on the grid is lower and renewable energy sources are often more prevalent, contributing to a greener energy system.
- Smart Home Integration: Works seamlessly with smart chargers and smart home devices to automate your off-peak charging.
- Award-Winning Customer Service: Octopus Energy is renowned for its excellent customer support, giving you peace of mind.
Things to Consider: Potential Drawbacks
While Octopus Go 12M Fixed is excellent for many, it's not without its considerations:
- Exit Fee: A £50 exit fee per fuel (so £50 for electricity on this tariff) applies if you switch away before the 12-month term ends. Factor this into your decision.
- Higher Daytime Rates: The trade-off for cheap overnight electricity is that your daytime unit rates might be higher than a standard variable or even some other fixed tariffs. It's crucial to ensure your overall consumption pattern benefits from the off-peak window.
- Smart Meter Requirement: If you don't have a smart meter, you'll need to get one installed, which Octopus Energy can arrange for you.
- Not for Low Off-Peak Users: If you don't own an EV or can't significantly shift your energy usage to the overnight window, another tariff might be more cost-effective for you.
Current Rates for Octopus Go 12M Fixed (2026)
Please note: As unit rates and standing charges are dynamic, varying by region (your postcode) and subject to change, we cannot provide specific, up-to-date figures here. For the most accurate and personalised Octopus Go 12M Fixed rates for your home in 2026, we highly recommend visiting the Octopus Energy website directly and entering your postcode. This will provide you with a precise quote tailored to your location.
Remember that the key benefit is the distinct difference between the super-cheap overnight rate (00:30 - 05:30) and the standard daytime rate.
Comparing Octopus Go 12M Fixed with Other Tariffs
When deciding if Octopus Go 12M Fixed is right for you, consider the following:
- Your EV Charging Habits: How often do you charge? Can you reliably charge within the 00:30 - 05:30 window?
- Your Overall Energy Usage: Look at your total electricity consumption. If a significant portion falls outside the off-peak window, compare the total cost with other tariffs.
- Other Octopus Tariffs: Octopus offers a range of innovative tariffs, including other EV-specific options like 'Octopus Intelligent Go' (which automatically optimises charging) or standard flexible and fixed tariffs. Explore all your options on their website.
- Fixed vs. Flexible: Decide if the price stability of a fixed tariff outweighs the potential flexibility (and sometimes lower exit fees) of a variable tariff.
Ready to Make the Switch?
If Octopus Go 12M Fixed sounds like the perfect fit for your EV charging needs in 2026, making the switch to Octopus Energy is straightforward. They handle everything, ensuring a smooth transition with no interruption to your supply.
Ready to power your EV for less and enjoy 12 months of fixed price certainty? Join the energy revolution with Octopus Go 12M Fixed today!
Use our exclusive referral link to get £50 credit when you switch to Octopus Energy: https://share.octopus.energy/wise-peach-776
