Good morning. I am on a bill monthly account but always make sure I am in credit so log in daily to keep an eye.
Im very careful with usage of gas/electric
I only put my heating on when needed usually twice for an hour or 2 when freezing in the evenings and only to keep dampness away as i tuck myself up with electric blanket
If I have my grandbabies I keep it running and last week I had them for 1 days and 1 night so kept on heating all day as both under 2years
Ive been worried about the cost of usage but I must be in the twilight zone as price doesnt make sense. The Wednesday my heating was on all day and tuesday was a ‘regular’ day but look at the difference in cost?
Does this seem right?
Im in a 3 bed semi bungalow with windows that desperately need replacing so very very draughty
Thank you in advance
Best answer by Firedog
Updated on 18/08/25 by Emmanuelle_OVO:
I agree that that looks odd. However, you can’t ever rely on the usage charts to tell you what your energy costs. The figure shown for the daily cost be an estimate of what the gas has cost. This will depend on the calorific value (CV) of the gas on that day, and the CV may not have been available when the chart was viewed.
You’d get a better idea of what a day’s use is costing by multiplying the kWh figure (itself an estimate) by your unit price and adding the standing charge. Both of those should be given on the Plan page. Don’t forget to add 5% for VAT once you’ve done the sums. Your gas on Wednesday would have cost something like [(63 kWh x £0.062/kWh) + £0.305/day] = £4.21 + 5% = £4.42.
If the chart is still saying £1.41 for Wednesday in a day or two’s time, I can’t imagine what’s wrong. Let’s hope someone else has seen this sort of thing before.
I agree that that looks odd. However, you can’t ever rely on the usage charts to tell you what your energy costs. The figure shown for the daily cost be an estimate of what the gas has cost. This will depend on the calorific value (CV) of the gas on that day, and the CV may not have been available when the chart was viewed.
You’d get a better idea of what a day’s use is costing by multiplying the kWh figure (itself an estimate) by your unit price and adding the standing charge. Both of those should be given on the Plan page. Don’t forget to add 5% for VAT once you’ve done the sums. Your gas on Wednesday would have cost something like [(63 kWh x £0.062/kWh) + £0.305/day] = £4.21 + 5% = £4.42.
If the chart is still saying £1.41 for Wednesday in a day or two’s time, I can’t imagine what’s wrong. Let’s hope someone else has seen this sort of thing before.
Yes it doesn’t seem to tally up @chattycath. I wonder if it is something to do with the calorific value. When you get your monthly statement through multiply the kWhs used by the unit rate (including VAT) & see if it’s accurate.
You can post the figures here as well if you like, but please don’t include any personal information.
I agree that that looks odd. However, you can’t ever rely on the usage charts to tell you what your energy costs. The figure shown for the daily cost be an estimate of what the gas has cost. This will depend on the calorific value (CV) of the gas on that day, and the CV may not have been available when the chart was viewed.
You’d get a better idea of what a day’s use is costing by multiplying the kWh figure (itself an estimate) by your unit price and adding the standing charge. Both of those should be given on the Plan page. Don’t forget to add 5% for VAT once you’ve done the sums. Your gas on Wednesday would have cost something like [(63 kWh x £0.062/kWh) + £0.305/day] = £4.21 + 5% = £4.42.
If the chart is still saying £1.41 for Wednesday in a day or two’s time, I can’t imagine what’s wrong. Let’s hope someone else has seen this sort of thing before.
I check on my daily usage using the app. One day it will show me a final daily charge then when I look again a couple of days later it will always have gone up .. has anyone else seen this ??
The first usage you usually see can easily be a little off which is why there may be corrections when calculating direct from the daily meter readings. For gas, the calorific value has to be calculated when the details are published which is after a days delivery.
You have to remember that the daily figure on the app (or online account) is an indication and may not be the true story.
In particular if they don’t yet have the smart meter data for a day they will use an estimate and correct it later when thet do get the SM data, that’s one reason why it can sometimes change. Sometimes you will see it change between morning and afternoon, depending on when they get the data.
In the end though the daily balance on the app is just an indication, and it’s your actual billing at the end of your monthly billing period that counts.
As an example I had a smart meter sending readings for electricity, but had to send my gas readings manually. That meant that my daily balances were estimated for the gas use, until I sent a gas meter reading at which point they got changed to reflect what gas I had actually used. Very occasionally the electricity data may also be a day or two late getting to OVO, again they estimate the daily and then correct it when they have the actual data. So while the daily balance is just an indication, for the actual billing it all evens out to actual meter readings (if they have them).
Hi I’m just wondering if anyone can help me, on my OVO app my usage for heating hot water is 40kwh, my heating which it states “ think has fires and radiators “ is 136kwh between the 4th of august to the 10th. I don’t have the radiators on as it’s so hot recently outside I don’t need them on, I don’t have a gas fire either I mainly run on electric. I have a boiler that requires a hot and cold water tank it’s a ex council house and the tank was fitted a very long time ago so not a new system but a new boiler was fitted around 8 year ago by the council before I bought the property I’m really confused why it’s charging me for something I don’t have on. My hot water is on continuously I don’t know how to change that but it’s saying it’s not that anyway, please if anyone can help me I would be so grateful. I’m not very good as anything like this. Thank you again
Morning @Katiejohnson and a warm welcome to the OVO Forum! I hope you’re well.
To put your mind at rest, what you’re seeing on the app is just an estimate of where your usage is falling based upon the info you would have provided about your appliances. There’s no way it can actually know what appliances are using, and when. It’s all just estimates, and the info will never be accurate.
You could try amending your home profile to say you don’t have gas central heating, but just to confirm, it still won’t give you accurate data as to how much each appliance is using To do this, select the person icon on the home page of the app (I’ve circled it in red on the screenshot below):
Exact appearance may vary
Then, on the next page, click ‘Home profile’ and you’ll be able to add in some information about household and appliances:
Exact appearance may vary
My advice is to check that your smart meters are providing half-hourly readings. If they’re not, set them via the app to do this, and you’ll then get a nice detailed breakdown of your usage on the ‘Usage’ pages. You can then look at the fluctuations of your usage at different times of the day, when different appliances are being used. You can then use this to get an idea of how much different things may be using. I’ve included some articles below that show how to set your reading schedules to half-hourly, and how to use the ‘Usage’ section of your account:
