The simple answer here is its likely you have just used a bit more electricity without realising it. With the longer darker nights our lights are on a little longer and perhaps some other usage has crept up a bit. 2KWh is not a lot of electricity and a small change just somewhere in your usage will account for this.

Hi @spmsupun 

Energy consumption depends on a lot of factors and it’s quite surprising to see such a steady consumption in the first place. Looking at the OVO account that I manage for someone they have storage heaters and it has a very similar level of usage but with greater variation due to changes in the weather. Since about the 2nd November there has been a very stable and colder weather pattern that could mean the heating would have increased and remained relatively stable. Before that it was warmer but difficult to say as I don’t know where you are located.

It would be interesting to see if you have any data for October to share and also an indication of where you live - the county will do.  I can look at the past weather pattern in that part of the country and see if it correlates with that.

Another possibility, assuming you have storage radiators, is that somehow the set temperature has gone up by, say, one degree. I look after an account for an elderly relative and I check that they are using the heating properly by looking at the usage data to ensure that they have put the heating on. By the way, this is a very good reason for having a smart meter but you need the consent of the person you are monitoring because it’s their data.

Peter

Are those just estimates?

Is your meter set to send half-hourly readings?

If you scroll down from the graph are the listed figures in green or black?
Green is a link to the half-hourly readings, Black is usually an estimate.

eg These are from my electricity Smart Meter. if I click a green number I’ll get shown the half-hour figures for that day.
If they were estimates then there would be no half-hourly data to link to yet so they would be black:
 

You don’t say how long you have been in the property.
Even with a smart meter then as a new customer, with presumably a new meter, it can take up to 6-weeks for the smart meter communications back through DCC to OVO to all settle down and so you will be shown estimates online until it has done that and OVO have the actual metered usage to show.

Also an already fully communicating SM can ocassionaly lose the communication for a while, so you will be shown estimates until the actual readings can be retrieved again.

We only can guess here. Are certainly sure you haven’t changed your usage habits? Is your heating using gas or electricity? It’s cold now, you might use it I little bit more. What about your water heating? Have you bought any device on the 3rd that uses more of your electricity? We can only guess here. If you worry that your meter might not show the correct measures, it’s better to ask the electrician to check it.

Like I said in the post I don't care 2KWh, in fact I don't care if it's double, I am just curious why it happened exactly beginning of the billing date.

Without any further information it is possible that it just coincided with the start of a period of colder weather. Can't really say it's anything else.

Hey @spmsupun 

Welcome to the OVO online community 

I can see our community members have already given some helpful advice here, just wanted to add that this topic might be helpful to you:
 

that's not possible, as you can see on 8th I use few my devices (heater..etc)but I wanted to make sure which one consume more so I didn't use heater or few of my other devices on 9th yet still got more that 8th. I use same or more devices on 2nd too.

If your consumption pattern isn’t reflected in the usage charts, then please do what @Nukecad suggested and look at the figures below the chart, specifically for those first few days in November. It looks as if the data for 3 November and subsequent days didn’t reach OVO for some reason, so estimates were used instead. This is easily checked: the figures in the table below the chart are links to the corresponding Day tab. If data are missing, there will be an estimated figure but it won’t be a link. If you click on the figure or bar for 2 November, you should be taken to the Day tab. If you then click on the right-pointing arrowhead at the top of the page to go to the next day:  

 you’ll probably see an error page. Please try it.

No-one knows how these estimates are arrived at, but they’re never in my experience anything close to reality. It doesn’t matter very much, because the usage data are only for guidance; they’re not used for billing, which is solely based on the meter readings captured each day. You’d better check those as well, because if they’re missing too, your meter may have lost communication to the network.

If your consumption pattern isn’t reflected in the usage charts, then please do what @Nukecad suggested and look at the figures below the chart, specifically for those first few days in November. It looks as if the data for 3 November and subsequent days didn’t reach OVO for some reason, so estimates were used instead. This is easily checked: the figures in the table below the chart are links to the corresponding Day tab. If data are missing, there will be an estimated figure but it won’t be a link. If you click on the figure or bar for 2 November, you should be taken to the Day tab. If you then click on the right-pointing arrowhead at the top of the page to go to the next day:  

 you’ll probably see an error page. Please try it.

No-one knows how these estimates are arrived at, but they’re never in my experience anything close to reality. It doesn’t matter very much, because the usage data are only for guidance; they’re not used for billing, which is solely based on the meter readings captured each day. You’d better check those as well, because if they’re missing too, your meter may have lost communication to the network.

I think you are right, it meter reading it say that OVO can't read my smart meter, this explain why my IHD suddenly stop working. I guess I have to contact OVO support.

If your consumption pattern isn’t reflected in the usage charts, then please do what @Nukecad suggested and look at the figures below the chart, specifically for those first few days in November. It looks as if the data for 3 November and subsequent days didn’t reach OVO for some reason, so estimates were used instead. This is easily checked: the figures in the table below the chart are links to the corresponding Day tab. If data are missing, there will be an estimated figure but it won’t be a link. If you click on the figure or bar for 2 November, you should be taken to the Day tab. If you then click on the right-pointing arrowhead at the top of the page to go to the next day:  

 you’ll probably see an error page. Please try it.

No-one knows how these estimates are arrived at, but they’re never in my experience anything close to reality. It doesn’t matter very much, because the usage data are only for guidance; they’re not used for billing, which is solely based on the meter readings captured each day. You’d better check those as well, because if they’re missing too, your meter may have lost communication to the network.

I think you are right, it meter reading it say that OVO can't read my smart meter, this explain why my IHD suddenly stop working. I guess I have to contact OVO support.

I accidentally choose my own reply as the best answer 

But it's a good answer though. I would have given it Best Answer

I concur!