Half-hourly meters

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Whether you’re thinking of switching to a half-hourly meter or you just want to save money on the one you already have, we can help.

At Love Energy Savings, you can quickly compare quotes from dozens of suppliers to see how much you could save on your half-hourly meter contract. Better still, we’ll handle the switch to your new tariff or supplier for you. What’s not to love?


Why half-hourly metered businesses should choose Love Energy Savings

Switching to a half-hourly tariff

Thinking of switching to a half-hourly meter?

When you get a quote from Love Energy Savings, you can speak to a member of our expert team about how the process works, including who will change your meter and when it can be done by.

Meter types


A half-hourly meter takes automatic meter readings every 30 minutes and sends it directly to your supplier. This means your bills are more accurate than they would be if estimated, helping you avoid overcharges or back-billing.


If your business operates in multiple locations, it may be worth talking to your chosen supplier about multi-site contracts. Your meters can be consolidated into one account, managed by one of our energy experts which will take all the hassle out of trying to keep track of all your different contracts.

It may be worth shopping around for each of your meters to make sure you’re getting the best deal for each location.


Multi-rate meters charge you different rates for the electricity you use depending on the time of day.

  • Two-rate meter — Sometimes known as an Economy 7 meter, a two-rate meter differentiates between peak and off-peak usage, charging less for the latter. This is ideal for businesses who use energy late at night or businesses that require machinery to run 24 hours a day.
  • Three-rate meter — This meter takes weekend usage into account, alongside peak and off-peak supply, charging all three at differing rates. If you’re using energy over the weekend, this would be the best choice for your business.

How to reduce your bill spend with energy efficiency

Besides switching your energy tariff, the next-best way to reduce the cost of your energy bills is to make your business more energy efficient. Increasing your energy efficiency will not only save you money on the Climate Change Levy (CCL), but it will also reduce your cost in terms of the amount of energy you use.

There are so many ways to become greener and every small change can add up to make a big difference. From switching all your traditional lightbulbs to LEDs, or installing solar panels on your roof – there are numerous ways, means and schemes to assist your business in reducing its usage.

Speak to
the experts

Call our team for a friendly chat at 0800 9888375 or fill in our contact form for an online enquiry.

FAQs about half-hourly meters

  • What is a half-hourly electricity meter?

    A half-hourly electricity meter, also known as a HH or 00 meter, automatically measures and records energy usage for businesses every 30 minutes. It works using automatic meter reading (AMR) technology to provide more accurate readings than non-half hourly meters.

    Similarly to a smart meter, a half-hourly meter takes your reading and transmits it via a phone connection. This is ideal when it comes to highlighting what times of the day are costing your business the most amount of money when it comes to your electricity consumption.

    Generally, half-hourly contracts will last between 1 and 3 years in length.

  • Do I need a half-hourly meter?

    Half-hourly meters are mandatory for any businesses in the UK that use at least 100,000 kWh of electricity each year. This is due to the P272 regulation that was approved by Ofgem in 2017.

    If your business has an 05, 06, 07 or 08-meter profile, you need a half-hourly meter.

  • What is the P272 regulation?

    The P272 regulation is a piece of legislation put into effect by the UK government in 2017. It requires companies in electricity-intensive industries (EIIs), such as manufacturing and food processing, to move from non-half hourly meters (NHH) to half-hourly meters (HH). Moving to half-hourly meters allows suppliers to keep better track of customer energy usage more accurately

    Most large non-domestic electricity consumers were issued with Automated Meter Reading (AMR) meters in April 2014. ARM meters have the ability to record Half-Hourly (HH or 00) consumption. Measuring the HH usage data will more accurately reconcile costs between consumers and suppliers.

    You can read more about the P272 legislation here.

  • How do you read a half-hourly meter?

    Half-hourly meters are automatic, so they don’t need to be read manually. Readings are taken every half-hour, totalling 48 per day.

    The system relies on a fixed line that updates your supplier with automatic meter readings. With updates in real-time, suppliers can create highly accurate charges based on HH data to make sure you’re paying for exactly how much energy you use.

  • What is HH data?

    HH data is simply the data sent from your half-hourly meter to your supplier. It includes things like how much electricity and gas you use each day and your peak usage times.

    Suppliers can use HH data to propose adjustments to your tariff to make your payments more accurate. This helps you avoid any back-billing that could occur if your usage is underestimated, so you don’t build up debt over time.

  • How do I know if I have a half-hourly meter?

    To find out what kind of meter you have, look at the MPAN number on your last energy bill. The MPAN number can be found on the top left of your bill to the right of the S.

    If your MPAN number is ‘00’, you have a half-hourly meter. If the number is 05, 06, 07 or 08, you’ll need to upgrade to a half-hourly meter as soon as you can. You can do so by getting in touch with your meter operator.

  • What is a meter operator?

    Your meter operator is a company responsible for installing and maintaining your gas and electricity meters. Meter operators are often contracted with the energy supplier but you may be able to choose your own meter operator when establishing a new business energy contract.

    Your meter operator is responsible for ensuring your half-hourly meter is working and collecting data correctly so that you’re charged the right amount for your usage.

  • What is a maximum demand meter?

    A maximum demand meter measures how much electricity you’re using at once. It’s designed to alert you and your distribution network operator (DNO) if you’re using too much electricity for the supply to handle.

    Maximum demand is also known as ‘Maximum Import Capacity; (MIC) and it’s measured with a unit called kVA, which stands for “Kilo Volt Amperes”. One kVA is equal to 1,000 Watts of power. Business electricity meters have an allocated kVA which needs to be adhered to. Going over your kVA could overload the supply.

  • What is the kVA charge?

    The kVA charge, also known as the Excess Capacity Charge, is an extra cost added to your business’s electricity bill if you exceed your Maximum Import Capacity (MIC).

    These charges can be as much as three times your standard rate for anything used above your kVA. This is to recover the costs that exceeding your MIC imposes on your distribution network operator (DNO).

    The best way to avoid the kVA charge is to use energy evenly throughout the day, rather than all at once.

  • Where can I find details of my MIC and my kVA charge?

    You can find your MIC and details of your kVA charge on your energy bill.

    Please note that your Maximum Import Capacity (MIC) might be listed as one of the following:

    • Agreed Supply Capacity (ASC)
    • Agreed Capacity
    • Availability

    Your kVA charge may be listed as one of the following:

    • Capacity Charge
    • Availability Charge

    If you can’t find this information, you can call your local Distribution Network Operator (DNO) instead.

    Name of Distribution Network Operator
    Contact number

    North of Scotland
    Scottish and Southern Electricity Networks
    0345 026 2554
    Central & Southern Scotland
    SP Energy Networks
    0330 1010 300
    North East England & Yorkshire
    Northern Powergrid
    0800 011 3332
    North West England
    Electricity North West
    0800 195 4141
    Merseyside, Cheshire, North Wales & North Shropshire
    SP Energy Networks
    0330 1010 300
    East Midlands & West Midlands
    Western Power Distribution
    0800 096 3080
    South Wales & South West England
    Western Power Distribution
    0800 096 3080
    London, South East England & Eastern England
    UK Power Networks
    0800 029 4285
    Central Southern England
    Scottish and Southern Electricity Networks
    0345 026 2554
    Northern Ireland
    Northern Ireland Electricity Networks
    03457 643 643
    Republic of Ireland
    ESB Networks
    00353 1850 372 757

  • What are the benefits of a half-hourly meter?

    The most immediate benefit you’ll notice from a HH meter is that all energy readings are automatic, meaning you’ll never need to go through the trouble of recording or sending your readings to your supplier.

    Half-hourly meters also give you the opportunity to save money on your energy bills. You can review exactly when your business uses the most energy by analysing your consumption data and work towards operating more efficiently, which will save money on your bills.

    Please note that lower bills aren’t guaranteed: they rely on your actions as a business owner.Get the best deal on your half-hourly tariff now
    Comparing tariffs on a half-hourly meter is the best way to ensure you’re getting the deal that’s right for you.

    By choosing to switch with Love Energy Savings, our team of energy experts will be on hand every step of the way. We can secure you the fairest deal on your business energy, thanks to our years of experience helping businesses like yours. We can also clear up any questions you have about half-hourly meters or the P272 legislation.

    Get in touch with our team at 0800 9888375 or enter your postcode into our free energy comparison tool to find an amazing deal and see how much you could save.