Part 9 of 10·Published on 24 Mar 2026 Understanding how and when you use electricity is one of the most effective ways to take control of your energy bills. Half-hourly (HH) meter readings give a view of your usage every 30 minutes, helping you see exactly what you're paying for and improve your energy habits. In this guide, we explain how HH readings work, why they matter for bill-payers, and how you can use them to help reduce your bills.
Take the stress out of meter readings and billing for good. With Fuse Energy, you can choose between typing in your meter reading or taking a photo of it in our app and we'll handle the rest. Get clear bills, real-time HH usage data, 24/7 human customer support, and a modern energy experience designed around you. Switch to Fuse Energy today in as little as 3 minutes, save annually on your bills, and see how simple energy can be.
- Check if you have a smart meter capable of HH readings by checking your supplier's app for half-hourly reads or by asking your supplier.
- Make sure HH data is being recorded by your supplier.
- Review your usage patterns to analyse your highest usage times.
- Look for energy use when you're not at home or are asleep.
- Shift flexible usage (like laundry or EV charging) to off-peak times.
- Consider tariffs that reward using energy at off-peak times.
HH readings track your electricity usage in 30-minute intervals throughout the day. Most electricity smart meters can record this level of detail and automatically send the data to your supplier. At Fuse Energy, we collect HH reads from smart electricity meters but not smart gas meters. This is because gas meters run on a battery and pulling HH reads would deplete the battery quickly, requiring frequent engineer visits to replace the meter. Instead of relying on occasional meter readings or estimates, HH data shows a clear picture of when your home uses the most energy.
Many households use more energy than they realise, often at peak times. This can be due to a range of factors.
- Always-on devices and overnight usage: appliances left on standby, heating running longer than needed, or devices charging overnight can quietly increase your bill without you realising. HH data helps you spot these patterns clearly.
- Peak energy use: nationwide, electricity demand is usually highest in the early morning and evening. Using energy during these times is more expensive if on an off-peak tariff. Understanding when your usage is highest is the first step to reducing it.
HH readings are most useful when you act on them. At Fuse Energy, we make this data easily actionable within our app and with our support team who can advise you on whether you should be on an off-peak tariff or not.
- Shift your usage to cheaper times: if you're considering an off-peak tariff, try moving flexible activities like running the washing machine or dishwasher, charging an EV, or turning heating on to off-peak hours.
- Identify energy spikes: look for sudden increases in usage. These could point to inefficient appliances, heating or cooling issues, or devices being used more than expected. Fixing these can lead to noticeable savings.
The UK energy system is moving toward more flexible pricing that reflects real-time demand. This means households that can adjust when they use electricity benefit from lower costs. HH data is what makes this possible; it allows suppliers to match pricing more closely to actual usage patterns. Fuse Energy customers can access flexible pricing by switching to an off-peak tariff (cheaper electricity between 00:30am–07:30am) or the EV tariff (cheaper electricity between 12am–5am for the entire household).
Managing your energy shouldn't feel like a monthly chore. While submitting meter readings can be necessary, Fuse Energy removes the friction around it. Instead of navigating clunky portals, you can simply upload a photo of your meter or type in the reading in our app, making the process faster, clearer, and less error-prone. You also get real-time, half-hourly usage data in the app and website if you have a connected smart meter. Our 24/7 human support team is always on hand with fast response times of under 5 minutes whenever you need help. Switch to Fuse Energy in as little as 3 minutes and find out about our mission.
Do I need a smart meter for HH readings?
Yes. Traditional, non-smart meters can't provide HH data. A SMETS1 or SMETS2 smart meter is always required.1
What should I do if my meter is broken or faulty?
If you suspect your physical meter is broken, such as the display being blank or showing an obvious error code, you must contact your supplier immediately. They are responsible for the maintenance and repair of the meter and will arrange for an engineer to come and investigate and replace the unit if necessary.
Do I still need to submit readings if I switch to Fuse Energy?
In most smart meter homes, you shouldn't need to submit regular manual readings because data is collected automatically. If you have a non-smart meter, Fuse Energy makes the process straightforward and transparent by giving you multiple options to submit each month. The goal is fewer estimated bills and less administrative work for you.
Disclaimer
For the avoidance of doubt, this article is provided for informational purposes only and is not intended to constitute legal or financial advice. The author and/or Fuse Energy shall not be responsible for any losses arising out of any reliance on the information contained herein.
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