NB: This information is valid when switching is possible - given the current energy market conditions, it may not be possible to act on the advice given in this guide.
In accordance with Ofgem regulations, you won't need to pay any exit fees to switch away from your energy supplier within 49 days of your plan ending. Your supplier should notify you before your plan ends, allowing you time to find and switch to a new plan before you're rolled onto a "standard" plan, which is often much more expensive than a fixed tariff.
Once you receive this notification and you are in the 42-49 day window, you are free to switch without paying any early exit or cancellation fees.
Case study "I'm due to end my current contract with my current energy supplier and having received their new tariffs decided to try Uswitch. They found me a great deal with a saving of £276 on what my old supplier offered, plus it comes from a renewable energy supplier. I'm so happy I took the time to do this and would STRONGLY recommend you do the same to save you some money. It only takes about 15 minutes to do and it's worth it."
David, Uswitch customer
Though shorter switching times have been introduced, it's worth noting that switching can take up to five days (including a two-week "cooling off" period) for suppliers that have signed up to the Energy Switch Guarantee. However, once your supplier knows you're switching they shouldn't roll you onto a more expensive tariff.
While the notification from your supplier will alert you to cheaper plans, these plans will only be the cheapest available from your supplier. That's why it's important to compare energy plans with an Ofgem-accredited site like Uswitch.
Our video, which covers what you should do when your fixed energy plan ends, explains this in more detail.
You may find there's nothing cheaper than your plan that's about to end. This is, after all, the appeal of fixed plans - they lock in a very cheap rate for a year or more.
If this is the case for you, be aware that you should still switch. Inevitably, your cheap-rate plan will end and you'll be rolled onto your supplier's standard rate tariff. This is almost always much more expensive than you were paying, and will most definitely be more expensive than the cheapest plan on the market.
Finding a cheaper energy plan depends on a whole host of factors, including where you live, your level of consumption and the state of the energy wholesale market.
Switching to another fixed rate energy plan offers the peace of mind that your rates won't change until the end of the plan. If you're not comfortable with a plan that includes an exit fee in case you don't like your new supplier or a better deal comes along, you can simply filter your comparison results - there are several fixed plans that don't carry an early exit fee.
Sometimes variable rate plans are some of the cheapest energy deals, but keep in mind you won't be protected if your supplier puts up its prices.
This is particularly worth noting when it comes to small suppliers, which can be more immediately impacted by changes to the wholesale gas and electricity market. That can lead to them having to be more reactive to wholesale changes and more likely to roll out price rises.
If you're looking to do your part for the environment, there are several suppliers now offering energy plans powered by 100% renewably generated electricity.
These plans are often competitively priced as well.
Ensuring you're on the cheapest energy plan, or on a good value fixed term plan, is the only way you can get the most value for every kWh you use, but there are other ways to keep costs down.
While a cheaper plan will save you money, so will using less energy in the first place. Simple changes around the home like dropping your thermostat setting by just one degree or draught proofing your doors and windows can make a significant difference, but larger investments can also pay off.
Insulation is the first step to keeping your energy costs down. Loft insulation is the easiest and cheapest to install. Even if you already have loft insulation, you should check whether you have the right levels installed — but more costly wall and floor insulation can also be worth considering.
When you are on a fixed energy plan, comparison sites will use what's called a personal projection. In simple terms, this is your estimated future energy cost for the next 12 months.
This calculation assumes you do not switch when your fixed deal ends, and uses the rates of your rollover plan to calculate your energy spend that is blended with your existing rates.
That means when you are on a fixed plan with a looming end date, your personal projection will change because your projection is a blend of the remaining days on your current fixed plan, and includes the days you will be on your supplier's pre-set rollover plan (the plan you will be automatically rolled onto if you do nothing).
Looking for a cheaper gas or electricity supplier but not sure where to start? Check out our step-by-step guide on how to find a better energy supplier.Learn more
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Find out which suppliers have increased or decreased their energy prices and how that affects your energy bills in 2023.Learn more