Fixed Rate Tariffs UK: How to Lock Energy Prices & Save

Energy bills can be unpredictable, but a fixed rate tariff can provide peace of mind. By locking in your energy price for a set period, typically 12-24 months, you can avoid sudden price hikes and better manage your budget.

In this guide, we’ll explain how fixed tariffs work, their benefits, and help you decide if they’re the right choice for your home.

What Are Fixed Rate Tariffs?

A fixed rate tariff is an energy deal where the price you pay for each unit of gas or electricity stays exactly the same for a set period. This means your rates will not change, even if the wholesale cost of energy increases across the country.

However, it is important to understand what is actually fixed. Your total monthly bill can still go up or down based on how much energy you use. If you leave the heating on all winter, your bill will be higher. The fixed part simply means the cost per unit of energy remains constant.

With price stability, you know exactly what you will pay for the energy you use. You eliminate the fear of unexpected price spikes.

How Fixed Tariffs Work in the UK

When you sign up for fixed price energy deals in the UK, your supplier locks in two main charges.

• First, they fix how much you pay per unit of energy used. This is measured in kilowatt-hours (kWh).

• Second, they fix your standing charge. This is the fixed monthly fee you pay just to have your home connected to the energy grid.

Let’s look at a real-life example. In 2022, Sarah from London switched to a fixed rate tariff right before wholesale costs soared. Because she locked in a low unit price, she saved £300 annually by avoiding the massive price hikes that hit other households.

Fixed Tariff vs Variable Tariff

When choosing an energy plan, you’ll typically come across two main options: fixed rate tariffs and variable rate tariffs. Each has its advantages, and the right choice for you will depend on your preferences for price stability, flexibility, and the level of risk you’re willing to take. In this section, we’ll compare the two to help you make an informed decision. 

Advantages of Fixed Rate Tariffs

There are several compelling reasons to choose a long-term energy contract.

• Financial stability: You always know the exact rate you are paying.
• Easier budgeting: Consistent unit rates make it easier to plan your monthly expenses.
• Protection from price hikes: If UK energy tariffs rise, your rates stay firmly locked in place.

Disadvantages of Fixed Rate Tariffs

Before you sign on the dotted line, you should consider a few potential downsides.

• Exit fees: Many suppliers charge a penalty fee if you leave your contract early.
• Missing out on price drops: If energy prices fall significantly, you remain stuck paying your higher fixed rate.
• Temporary security: Your price lock only lasts for the length of the contract, usually one or two years.

Timing Your Energy Contract

Choosing the best energy deals requires a little bit of strategic timing. Here is what you need to know about contract lengths and when to switch.

How Long Can You Fix Your Energy Rates?

Most UK suppliers offer fixed energy deals that last for 12 months. This is the most popular option for households seeking short-term price stability.

You can also find contracts that lock in your rates for 24 or even 36 months. A longer contract provides more security. However, these longer deals sometimes come with slightly higher initial unit rates.

When Is the Best Time to Choose a Fixed Tariff?

Timing your switch is crucial for maximizing your energy savings.

Historically, the best time to lock in a rate is during the warmer summer months. Energy demand drops in the summer, which often leads to cheaper tariffs.

You should also consider fixing your rate if industry experts predict upcoming price cap increases. Locking your rate before a predicted hike shields you from the financial impact.

Managing Your Energy Deal

What happens when your contract ends? How do you find a better one? Managing your tariff is just as important as choosing it.

What Happens When Your Fixed Tariff Ends?

When your fixed term comes to an end, your supplier will not simply cut off your power.

Instead, they will automatically move you onto their standard variable tariff (SVT). These default tariffs are usually the most expensive plans a supplier offers.

Your supplier must contact you a few weeks before your contract ends. This notice period is your cue to start shopping around for a new deal. Never let your account simply roll over onto the default rate without checking your options first.

How to Compare Fixed Rate Tariffs in the UK

Finding the best energy deals is easier than you might think.

Start by grabbing your latest energy bill. You need to know your current supplier, the name of your current tariff, and your annual energy usage in kWh.

Use a trusted energy comparison website to look at available deals. Enter your details and filter the results to only show fixed rate options. Pay close attention to the unit rates, the standing charge, and any early exit fees.

Take Control of Your Energy Bills Today

Choosing your household energy plan does not have to be stressful. By understanding how fixed rate tariffs work, you can confidently navigate the UK energy market.

Locking in your unit rates provides ultimate peace of mind. It protects your budget from sudden market spikes and makes managing your monthly expenses incredibly simple.

Take five minutes today to grab your latest energy bill. Check when your current contract ends and run a quick online comparison. A few minutes of research could save you hundreds of pounds over the next year.

Conclusion

Deciding between a fixed rate tariff and a variable rate tariff depends on your need for price stability or flexibility. If you prefer predictability in your energy costs, a fixed tariff offers peace of mind with a set price for a fixed period.

However, if you’re comfortable with potential price changes and value the freedom to switch plans anytime, a variable tariff could be a better fit. Consider your budget, risk tolerance, and energy usage to make the best choice for your needs.

For more detailed guides and the latest updates, explore our Energy Guide.

FAQs

Choosing between a fixed rate and a variable rate tariff can be confusing, especially with the many options available. Here are some common questions to help clarify the differences and guide your decision-making process.