Octopus Go 12M Fixed 2026: The Smart EV Tariff Explained

Introducing Octopus Go 12M Fixed 2026: Your Smart EV Charging Solution

Welcome to 2026, and if you're an electric vehicle (EV) owner or considering making the switch, you're likely always on the lookout for ways to make charging more affordable and convenient. That's where Octopus Energy's Octopus Go 12M Fixed tariff comes in. Designed specifically for the modern EV driver, this innovative tariff offers incredibly low electricity rates during a dedicated overnight window, helping you power your journeys for less.

What is Octopus Go 12M Fixed?

Octopus Go 12M Fixed is one of Octopus Energy's flagship smart tariffs, tailored for households with electric vehicles. The '12M Fixed' part means your unit rates and standing charges are locked in for a full 12 months, providing stability and peace of mind against fluctuating energy prices. Its standout feature is the provision of 'super cheap electricity' during a specific overnight period, making it ideal for charging your EV while you sleep.

How Does Octopus Go 12M Fixed Work?

To benefit from Octopus Go 12M Fixed, you'll need a smart meter at your property that can send half-hourly readings to Octopus Energy. This enables the tariff to accurately track your energy consumption throughout the day and apply the correct rates. The magic happens between 00:30 and 05:30 every night – a generous five-hour window where your electricity unit rate drops significantly. Outside of these hours, a standard unit rate applies.

Is Octopus Go 12M Fixed Right For You?

While primarily designed for EV owners, Octopus Go 12M Fixed can also be a fantastic option for other households keen to optimise their energy usage.

Key Benefits of Octopus Go 12M Fixed

• Fixed Rates for Peace of Mind: Enjoy predictable energy bills for 12 months. This stability can be invaluable in budgeting your household expenses, shielding you from potential energy price rises during your contract period.
• Super Cheap Overnight Charging: This is the core benefit. By charging your electric vehicle during the 00:30 - 05:30 window, you can significantly reduce your running costs. Imagine waking up every morning to a fully charged car, knowing you've paid a fraction of the price compared to standard tariffs.
• Optimise Your Home's Energy: It's not just for EVs! If you have other high-energy appliances like storage heaters, heat pumps, or even a dishwasher or washing machine with a timer function, you can schedule them to run during the off-peak hours. This smart scheduling can lead to substantial savings across your entire household energy consumption.
• Award-Winning Customer Service: As an Octopus Energy customer, you'll benefit from their highly-rated customer service. Known for their transparency, innovation, and commitment to renewable energy, Octopus consistently receives top marks for customer satisfaction.

Things to Consider Before Switching

• Smart Meter Required: You must have a working smart meter (SMETS1 or SMETS2) that sends half-hourly readings. If you don't have one, Octopus Energy can usually arrange a free installation.
• Maximising Off-Peak Usage: To truly benefit, you need to be able to shift a significant portion of your electricity consumption into the 00:30 - 05:30 window. If most of your energy use is during peak daytime hours, a different tariff might be more suitable.
• 12-Month Commitment: While fixed rates offer stability, they also mean you're committed for a year. Ensure this tariff aligns with your long-term energy usage plans.

Understanding Octopus Go 12M Fixed Rates (2026)

Here are the current rates for Octopus Go 12M Fixed in 2026 (including VAT):

• Standard (Peak) Electricity Unit Rate: 31.7449p per kWh (applies outside of 00:30 - 05:30)
• Off-Peak Electricity Unit Rate: Significantly lower than the standard rate (applies between 00:30 - 05:30). While the exact off-peak unit rate is significantly lower than the standard rate, allowing for substantial savings on EV charging and other nocturnal energy use, we cannot provide a specific figure here without it being explicitly supplied. You will see this specific, much lower rate upon signing up.
• Standing Charge: 45.4657p per day

These rates are fixed for 12 months from the start of your contract, offering stability in your energy costs.

Making the Most of Your Go Tariff

To truly unlock the savings potential of Octopus Go 12M Fixed, embrace smart energy habits:

• Schedule EV Charging: Set your EV to charge only within the 00:30 - 05:30 window. Most modern EVs and smart chargers allow you to easily do this.
• Timer Appliances: Use timers on your washing machine, dishwasher, tumble dryer, and any other high-consumption appliances to run overnight.
• Battery Storage: If you have a home battery storage system, charge it during the cheap off-peak hours to power your home during the day.

Ready to Go? Switch to Octopus Go 12M Fixed Today!

If Octopus Go 12M Fixed sounds like the perfect fit for your EV-owning household in 2026, making the switch is straightforward. Join thousands of satisfied customers who are already benefiting from Octopus Energy's innovative tariffs and outstanding service.

Ready to save on your energy bills? Use our exclusive referral link to get started with Octopus Energy and potentially receive a bonus credit when you switch:

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