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Prepayment meters explained

Prepayment meters explained

Prepayment energy meters are a type of domestic energy meter that requires users to pay for energy before using it. This is done via a smartcard, token or key that can be topped up at a corner shop or via a smartphone app.

As of 2019, around 4.3 million people in the UK have a prepayment energy meter, according to Ofgem. Learn how they work and how to switch from a prepayment meter to a regular meter.

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How do prepayment meters work?

With a prepayment meter you have to pay for your gas and electricity up front. They work a bit like a pay as you go mobile phone - you have to top-up with credit to get your gas and electricity.

A prepayment meter has a slot for you to put your top-up card in to increase your energy credit.

The top-ups work in a variety of different ways. You could have a smartcard, token or key you have to take to a shop, or in some cases you put money straight into the meter itself (this is becoming more rare).

More recently, some suppliers have been offering online or phone top-ups. Ovo Energy, for example, offer prepayment top up by text, app, phone or online.

Otherwise, you can top up at recognised PayPoint or Payzone shops, or at the Post Office.

Can I switch to a cheaper prepayment energy plan?

Yes. Nearly every supplier has at least one prepayment tariff available and, just like regular meters, some plans are cheaper than others. It's worth checking to see if you could switch prepayment meter plans to save.

You can compare prepayment meter deals with Uswitch now. Simply select "Prepayment meter" when asked how you pay for your energy.

Current cheapest prepayment deals from Uswitch

Supplier Plan name Price
Bulb Vari-Fair £998 Compare now
EDF Energy Prepay Total Service Nov21 £1115 Compare now
Spark Energy Move In Saver v9 £1161 Compare now
SSE Standard Pay As You Go £1161 Compare now
E.ON E.ON Energy Plan with Prepayment £1164 Compare now
British Gas Safeguard PAYG £1164 Compare now
EDF Energy Standard (Variable) Prepayment £1164 Compare now
ScottishPower Standard. £1164 Compare now

Based on average bill sizes for a medium energy user on a dual fuel prepayment plan, and averaged across all regions. This information is updated hourly with energy plans which are available to switch to through Uswitch. To appear in this table, plans must be available in at least 7 of the 14 regions.

Can I switch from a prepayment meter to a standard meter?

Yes, with some caveats (see below). First, it's important to understand why you might want to change your meter.

Prepayment energy plans are some of the least competitive on the market — meaning if you stick with a prepayment meter you will have fewer plans to choose from if you want to switch and save money on your energy bills.

It is possible to switch your meter out, though it occasionally comes with a cost.

The good news is, if your current supplier is one of the big six, and you are eligible for a credit meter, you can get the meter switched for free.

Before switching your meter, your supplier will likely require that certain conditions are met. These include that your account is debt-free and, in some cases, that the account holder passes a credit check.

If you are a renter, please note that you will need the landlord's permission to change the meter (this does not apply to smart meters).

If your current supplier charges to change from a prepayment to a credit meter, you're not stuck — you can still switch to a cheaper prepayment plan from another supplier. Your new supplier may even be able to swap your meter out at no cost.

Why does my home have a prepayment meter?

Prepayment energy meters are usually installed into homes that have slipped into debt with their energy supplier at some point, to help them manage their debt and their budget more effectively.

Some landlords also like to have them installed in their rental properties to try and cut the risk of their tenants running into debt.

If you have to switch to a prepayment meter because you're in debt to your energy supplier, you will pay off your debt bit by bit at the same time as you pay for the gas and electricity you use.

This means that as well as paying the unit rate for the energy you use, you'll pay a little extra to go towards what you owe.

How can I take a meter reading on a prepayment meter?

 There will usually be a button on your meter that will provide you with a meter reading

To get a meter reading from your prepayment meter, you will usually have to press a button on the meter (sometimes it's blue).

This will change the display from showing the remaining credit to showing the actual reading. From there on, it's just like taking a normal meter reading.

What are the pros and cons of prepayment meters?

When it comes to prepayment meters, the disadvantages generally outweigh the advantages.

Advantages of prepayment meters include:

  • helping customers to manage their debt and energy usage;
  • preventing large, unexpected bills.

Disadvantages of prepayment meters include:

  • above average costs for your gas and electricity;
  • the best energy deals on the market aren't available to prepayment meter customers;
  • they can be inconvenient because you have to go out to top up keys and smartcards;
  • if you can't reach a shop to top up your meter your energy can be switched off;
  • older meters need to have their prices updated manually after price rises or drops, which can take months. This means you could be left paying old rates and owing a lump sum or paying too much.

I've just moved to a house with a prepayment meter - what should I do?

If you've moved to a new home that has a prepayment meter, it's vital that you register with the energy company as the new account holder. If you don't, you could end up paying the wrong rates because the previous occupier could be in debt to the energy supplier.

Once you've registered as the new account holder it's a good idea to compare prices to make sure that you're on the cheapest possible prepayment meter tariff.

Different types of prepayment meters

There are two main types of prepayment meters: key meters and smart card meters. A key meter uses a special electronic key with your tariff information on it. A smart card meanwhile sends your latest information through to your supplier when topped up.

Regardless of what type of prepayment meter you have, you should make sure you know how to top it up. In case of an emergency, or when you're working from home, the last thing you want is your electricity to go out.

Make a list of the nearest shops and Post Office locations as well as their opening times. You should also look out for holiday periods and top your card up with a bit extra before bank holidays and other holiday periods when topping up could be difficult. Most prepayment meters have an emergency credit budget you can use, like an overdraft, but it is limited.

If you lose your prepayment meter key or smart card, don't worry. You can simply contact your supplier to get a new one sent out, but in the meantime your supplier should be able to authorise a temporary card from your nearest PayPoint, PayZone or Post Office. If this isn't possible, you might require an emergency callout which will involve a charge. When you move into a property with a prepayment meter you should contact your supplier and clarify exactly what happens if you can't find your card or token.

Run an energy comparison and beat the price cap

Make sure you're not overpaying for your energy and switch to a fixed deal now. Enter your postcode below to get started.

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