Non-standard electricity meters

What is a non-standard electricity meter?

Almost all npower electricity customers have a standard single rate meter or an Economy 7 meter with two rates. A small percentage have non–standard meters (also referred to as restricted meters or complex meters) such as an Economy 10 meter, Super Tariff meter or an Off-Peak meter.

The type of meter you have in your home may depend on if you use gas/oil or electricity to heat your home and water.

If you are unsure of the meter you have in your home or the hours which it operates, get in touch with us on 0800 048 0575 or 0330 100 7575 and we can help.

Economy 8 / White meter and Economy 9open/close

These meters record the electricity you use on two rates – a 'day/normal' rate and a 'night/low' rate. The low rate is cheaper than the normal rate and covers a period of eight hours for an Economy 8 / White Meter or nine hours for an Economy 9 meter. Economy 9 is only found in the London region.

If you are unsure of the times your meter operates at a low rate please get in touch with us and we can help.

If you have one of these meters, you now have the option to switch to a tariff with one-rate (we’ll just charge both your day and night readings at the same price), without the need for a meter exchange – call us on 0800 048 0575 or 0330 100 7575 and we can discuss the tariff options available to you as well as any questions you may have about your meter type. You may benefit from a move to a one-rate tariff with npower Select, a brand within the npower group which offers a range of standard meter tariffs for your non-standard meter.

Economy 10open/close

An Economy 10 meter usually records the electricity you use on two rates. The 10 hours on a 'low' rate are typically broken down into seven hours at night and three hours during the day or it may be broken down into three periods – for example five hours overnight, three hours in the afternoon, and two hours in the evening.

Economy 10 meters in the Eastern region can have either 3 rates and 2 MPANs, or 2 rates or 1 MPAN. If you are unsure of the times your E10 meter operates at, please get in touch with us and we can help.

If you have one of these meters, you now have the option to move to a tariff with one-rate (we’ll just charge both your day and night readings at the same price), without the need for a meter exchange – call us on 0800 048 0575 or 0330 100 7575 and we can discuss the tariff options available to you as well as any questions you may have about your meter type. You may benefit from a move to a one-rate tariff with npower Select, a brand within the npower group which offers a range of standard meter tariffs for your non-standard meter.

SuperTariff meter open/close

A SuperTariff is a multi-rate meter that has registers to separately record the electricity you use in your home during the day and night, as well as a ‘Heat’ register which records the electricity used to heat rooms and/or to heat water.

It’ll run alongside an associated 24 hour ‘day/night’ meter, which is likely to be an Economy 7 meter. If you have an Economy 7 meter view our Economy 7 calculator below to see if the amount of energy you use at night is suited to an Economy 7 tariff , or if you could be benefitting from a different type of tariff.

If you have one of these meters, you now have the option to switch to one of our standard meter tariffs with one rate for your heat register without the need for a meter exchange. Call us on 0800 048 0575 or 0330 100 7575 and we can discuss the tariff options available to you.

Remember, you can continue to take up our range of standard meter tariffs for your 24 hour meter.

How can I calculate if my night usage is suitable to an Economy 7 tariff?

To do the calculation you’ll need to have an Economy 7 meter and have your bill to hand. The bill will show you how much electricity you’ve used in the last 12 months. It needs to be a full 12 months because your summer and winter electricity usage may vary.

% night usage calculation

Take a look at your estimated usage over the next 12 months, which you can find on your bill

  • Step 1 – Select whether you pay by Direct debit, Prepayment or Cash/cheque
  • Step 2 – Enter your day units in kWh
  • Step 3 – Enter your night units in kWh
  • Step 4 – Select your region
  • Step 5 – Press 'Calculate' and you’ll see the % of electricity you use at night
  1. Direct debit
  2. Prepayment
  3. Cash/cheque

 

 

Off-Peak meter open/close

If you're an Off-Peak customer, you will have two separate meters installed in your home:

  • An Off-Peak meter which usually supplies electricity to heat a particular space and/or heat water for typically 8 to 13 hours a day
  • A separate meter which records all other electricity supplied to your home 24 hours a day

Some Off -Peak tariffs can have up to 15 hours of availability and have summer and/or weekends too.

If you are unsure of the times your Off-Peak meter operates at, please get in touch with us and we can help.

If you have one of these meters, you now have the option to switch to one of our standard meter tariffs with one rate for your Off-Peak meter without the need for a meter exchange. Call us on 0800 048 0575 or 0330 100 7575 and we can discuss the tariff options available to you.

Remember, you can continue to take up our range of standard meter tariffs for your 24 hour meter.

Do I have to have a Restricted Hour Tariff? open/close

If you’ve a non-standard electricity meter you don’t have to have a Restricted Hour Tariff. npower Select, a brand within the npower group, offers a range of one-rate tariffs for your non-standard meter without the need for a meter exchange. Moving away from your Restricted Hour Tariff does mean that you will be unable to move back to your original tariff. This is something you should consider when choosing a tariff.

If you would like to know more, call us on 0800 048 0575 or 0330 100 7575 and we can discuss the tariff options available to you.

Meter and tariff advice open/close

We're here to help with advice and information about your meter, tariff and energy usage whenever you need it. You can find more information on your most recent bill or statement, but if you have any further questions, contact us on 0800 048 0575 or 0300 100 7575, or alternatively speak to our Web Chat advisors.

If you need independent advice

It’s easy to get independent advice about your energy supply. The Citizens Advice consumer service gives free, confidential and impartial advice online. Or you can call the Citizens Advice consumer helpline on 03454 04 05 06 (textphone 18001 03454 04 05 06).

Can I change my non-standard meter to a standard meter? open/close

A meter exchange is not needed for you to switch to a standard meter tariff. Call us on 0800 048 0575 or 0330 100 7575 and we can discuss the tariff options available to you.