3 Year Fixed Energy Deals UK: Who Still Offers Them?

Last updated: Monday 9 November 2026
Next update: when Ofgem announces the January to March 2027 price cap (due by 25 November 2026), or sooner if a supplier launches a longer fix.
By: Switch Editorial Team, Switch Squid Ltd

Very few UK households can buy a three-year fixed energy deal right now. OVO still publishes terms for a 3 Year Fixed plan, but only for existing OVO members, and its plan list on 9 November 2026 shows 1 Year and 2 Year fixes only. The longest fix we found on sale to new customers is EDF’s 25-month Simply Fixed 2Yr, and the cheapest long fix, Fuse Energy’s 24-month deal, costs about £81 a year more than the price cap in London (EnergyPlus tariff tracker, 8 November 2026).

This SwitchSquid guide explains who still offers three-year fixes, what the longest deals on the market cost against Ofgem’s £1,723 cap, the exit fees you would sign up to, and when locking in for longer actually makes sense. The buttons on this page open MoneySuperMarket’s home energy comparison, where you can see fixed deals for your own postcode. SwitchSquid may earn a commission if you switch through them; it does not change the price you pay.

Sources: OVO’s 3 Year Fixed terms and its home energy plans page, the EnergyPlus tariff tracker (updated 8 November 2026), Ofgem’s price cap and Cornwall Insight’s January 2027 forecast. Prices are for a typical dual-fuel home paying by Direct Debit unless we say otherwise.

Can you still get a 3 year fixed energy deal?

Only in a narrow case. OVO is the one big supplier that still publishes terms for a three-year fix. Its 3 Year Fixed terms say the plan is “available for existing OVO Energy members only”, that you must take dual fuel or electricity only from OVO, and that pay-as-you-go meters are not eligible. Those terms were last updated on 30 September 2021, and when we checked OVO’s home energy plans page on 9 November 2026 it listed 1 Year Fixed and 2 Year Fixed plans, with no three-year option on sale.

So if you are not already with OVO, you cannot join on a three-year fix, and even existing members should ask OVO whether the plan is open before counting on it. For everyone else, the real question is whether a two-year fix is worth taking, or whether a tracker or the price cap is the better bet while prices are moving.

Three-year fixes were easier to find before the 2021 to 2022 energy crisis. Since then, suppliers have kept their terms shorter, as buying energy three years ahead is expensive and risky for them. That is why almost everything on sale today runs for 12 to 25 months.

The longest fixed energy deals on sale now

The EnergyPlus tariff tracker prices every tariff a household can switch to, region by region. On 8 November 2026 it listed 420 tariffs across 14 regions, and none of the fixed deals ran for longer than 25 months. These are the longest fixes in its London sample, priced on Ofgem’s typical use (2,500kWh of electricity and 9,500kWh of gas a year), dual fuel, paying by Direct Debit. London’s capped standard variable rate at that usage was £1,706.14 a year.

Two things stand out. First, every long fix on the list costs more than the cap does today, by between £81 and £183 a year in London. Second, the cheapest of them, Fuse’s 24-month deal, is also the one with the smallest exit fee. Your own figures will differ by region and by how much energy you use, which is why it is worth running a quote for your postcode before you choose.

If you want a deeper look at one of these, our guides to the British Gas Fix and Fall tariff and Octopus fixed tariffs cover how each works, and our cheapest fixed energy deals page tracks the shorter fixes.

Why a long fix costs more than the cap today

A fixed tariff is priced on what suppliers expect wholesale energy to cost over the whole term, not just this winter. The October to December 2026 cap of £1,723 for a typical dual-fuel home was set from wholesale prices earlier in the year. Since then, forecasters have pointed to a higher cap from January, so suppliers are pricing their fixes above today’s cap but below where they think it is heading.

Cornwall Insight forecast on 30 September 2026 that the January to March 2027 cap would be £1,999 a year for a typical home, £276 more than today. EnergyPlus’s average of the forecasts published by British Gas, EDF and E.ON Next between 2 and 5 November is higher still, at £2,219. These are forecasts, not decisions. Ofgem confirms the January level by 25 November 2026, and the cap is then reviewed every three months.

That is the trade you make with any fix. You pay a little more than the cap now in return for knowing your unit rates and standing charges for the whole term. If the cap rises as forecast, a fix priced near today’s cap starts to look cheap from January. If wholesale prices fall back, you could end up paying more than the cap, with an exit fee if you want to leave.

3 year fix vs 2 year fix vs tracker: which suits you?

A long fix suits you if budgeting matters more than squeezing out the lowest price, for example if you are on a fixed income or a tight monthly budget, or if you would worry about another sharp rise. It suits you less if you might move home soon, if you have an electric vehicle or heat pump and could save more on a smart tariff, or if you are happy to switch again when prices fall. Our tracker vs fixed guide goes deeper on the second option.

What exit fees mean on a long fix

Exit fees are the price of flexibility. On the EnergyPlus list, the long fixes carry exit fees from £100 (Fuse) to £250 (British Gas Fix and Fall). OVO’s 3 Year Fixed terms set a £60 fee for each fuel, so £120 for dual fuel, and its current 2 Year Fixed shows £95 for each fuel on its plans page.

Ofgem’s rules let you switch without an exit fee in the last 49 days of a fixed deal, so you can always shop around before the term ends. Before you sign, ask yourself two questions. Could you move home during the term? Many fixes end when you move home, and OVO’s three-year terms say so in writing. Would you switch if prices fell? If the answer to either is yes, a shorter fix or a tracker may cost you less overall.

Should I switch energy supplier now?

If you are on the price cap and want certainty, now is a reasonable time to look, because fixes are priced below most January forecasts. If you are already on a fix that ends in the next few weeks, compare before your end date so you do not roll onto your supplier’s standard variable tariff. If your current fix is cheap and has months left to run, it usually makes sense to keep it and set a reminder for the 49-day switching window.

Whatever you choose, compare on your own usage. A fix that is cheapest for a typical home can be dearer for a small flat or a large family house, because the balance between unit rates and standing charges changes the total. Our should I fix my energy deal guide walks through the decision, and our price cap explainer shows what the cap does and does not limit.

How to switch to a fixed energy deal

1. Find your usage. Your annual kWh for gas and electricity is on your latest bill or in your supplier’s app. Real figures give a far better quote than estimates.

2. Check your current deal. Note any exit fee and your end date. If you are within 49 days of the end, you can leave without a fee.

3. Compare fixes for your postcode. Look at the yearly total, the fix length and the exit fee together, not the unit rate alone.

4. Check the eligibility. Some fixes need smart meters, Direct Debit or online account management. OVO’s three-year terms also exclude pay-as-you-go meters.

5. Switch. Your new supplier handles the move, which usually takes a few weeks. Take a meter reading on the switch day so your final bill is accurate.

Fit summary

• Ask OVO about its 3 Year Fixed if: you are already an OVO member on dual fuel or electricity only, and want the longest certainty available. Check it is open before you rely on it.

• Choose a two-year fix if: you want protection through two winters and accept paying a little above today’s cap for it.

• Choose a tracker if: you want the lowest price today and can live with your bill moving.

• Stay on the cap for now if: you expect to move home or switch again soon, and want no exit fees.

Important conditions

• Prices in our tables are from the EnergyPlus tariff tracker for London on 8 November 2026, at Ofgem’s typical use, dual fuel and Direct Debit. Your quote will differ by region, meter and usage.

• OVO’s 3 Year Fixed terms (last updated 30 September 2021) say the plan is for existing OVO members only, and it was not listed on OVO’s plans page on 9 November 2026.

• January 2027 cap figures are forecasts from Cornwall Insight and from suppliers, not Ofgem decisions.

• A fixed tariff fixes your rates, not your bill. If you use more energy, you pay more.

• Exit fees are as listed on 8 and 9 November 2026 and can change for new versions of each tariff.

Final decision card

A true three-year fixed energy deal is only realistic for existing OVO members, and even then OVO was not listing it on 9 November 2026. For everyone else, the longest fixes on the market run for 24 to 25 months, and the cheapest of them, Fuse’s 24-month deal, cost £1,787.07 a year for a typical London home on 8 November, £81 above the cap with a £100 exit fee. With January’s cap forecast to rise and Ofgem confirming the figure by 25 November, compare fixes for your own postcode now, then decide whether two years of certainty is worth the small premium.

FAQ

Can I get a 3 year fixed energy deal in the UK?

Only in a narrow case. OVO publishes terms for a 3 Year Fixed plan for existing OVO members on dual fuel or electricity only, but its plans page on 9 November 2026 listed 1 Year and 2 Year fixes only. No other supplier on the EnergyPlus tracker sold a fix longer than 25 months on 8 November 2026.

What is the longest fixed energy tariff available now?

The longest fix we found on sale to new customers is EDF’s Simply Fixed 2Yr Nov28v4, which runs for 25 months. EnergyPlus priced it at £1,851.60 a year for a typical London home on 8 November 2026, with a £200 exit fee.

Is it worth fixing energy for 3 years?

It can be if you value certainty and are unlikely to move home, because you lock in your rates through several winters. The risk is that wholesale prices fall and you pay more than the cap, with an exit fee to leave. Today the choice is mostly between a two-year fix, a tracker and the cap, since three-year deals are not on general sale.

Are fixed energy deals cheaper than the price cap right now?

Not at the moment. The cheapest fix on the EnergyPlus tracker for London, Fuse Energy’s 24-month deal, cost £1,787.07 a year at typical use on 8 November 2026, £81 more than London’s capped rate. Only trackers and variable tariffs came in below the cap that day.

When will the January 2027 price cap be announced?

Ofgem confirms the January to March 2027 cap by 25 November 2026. Cornwall Insight forecast £1,999 a year for a typical home on 30 September, while an EnergyPlus average of supplier forecasts from early November was £2,219. Both are forecasts, not the official figure.

What happens if I leave a fixed deal early?

You usually pay an exit fee, which on the long fixes we found ranged from £100 to £250, and OVO’s three-year terms set £60 per fuel. You can switch without a fee in the last 49 days of a fixed deal. Some suppliers end the fix when you move home, so check the terms before you sign.

Should I switch energy supplier now or wait?

If you are on the price cap and want to protect your budget from a January rise, comparing fixes now makes sense. If you are already on a cheap fix with months left, keeping it is usually better. Either way, compare on your own annual usage rather than a typical figure.