December Power Move calculated incorrectly

My calculation is also out by just over 1% to the OVO email - BUT in my case it is my calculation which is the higher of the 2.

I have 9.88% on my spreadsheet, OVO have 8.77% in their email.

By either one I comfortably met the target.

I do have a days data missing for 27 Dec, but that shouldn’t make a full 1% difference.
I might take a look at what difference adding in the bank holidays makes.

PS. You may want to edit all that whitespace out of your post, if you can.

This is likely to have cost me as well - this whole scheme does seem well thought through and certainly offers no transparency 

I’ve just had a word with the Support Team, they’ve raised a case on my account to get mine checked. Pretty quick to get through if you use Live Chat right now… Even if the agents do suffer my Rickroll pranks as a result… :)

We’ll let the Forum Mods know about this as well - they might be able to get someone to dig deeper and wider.

Thanks for this pggima. I think the Dec fig is out too. I've made the target but by a much finer margin than I thought it would be. I'll check against my own figures later. 

I tried editing the post but every time I deleted spaces and reposted it the white spaces just got bigger and bigger…

I've found my spreadsheet to be accurate since PM started as follows:

Sept: me - 11.07%, ovo 10.79% (-0.28%)

Oct: me - 11.23%, ovo 11.43% (+0.2%)

Nov: me - 13.19%, ovo 13.30% (+0.11%)

I wish the website would give the kWh figures for each 30min period to 3 decimal places, as this introduces an error of approximately +/-0.05kWh each day summing the 48x 30min periods when compared to the daily totals.

No worries. I’ll get a Forum Moderator to help fix that post for you. This is free and won’t result in a black mark on your forum account. :)

I have to disagree with you. The scheme is well thought through, just may have some bugs that in fairness they seem to care about fixing.
The whole point is for each person to make a small change to their routine, to reduce the peak demand on the grid which usually occurs between 4pm and 7pm.
The grid has to be sized to cope with the peaks, so if you can lower the peak, then you can save many many billions in infrastructure upgrade costs, which you as the customer would have to pay for through higher bills anyway.
So it is very much in yours and everyone else's interest to do what they can to reduce personal 4pm-7pm consumption, and it really isn't terribly difficult to do, to both benefit from £15 a month credit currently, but also big picture avoid many hundreds being added to your bill in the future to cover the costs of upgrading the infrastructure to cope with the peak should no one decide that they can be bothered to participate in schemes like this.
Cant be bothered, I’ll have your £15 then if you don't want it.

You’re not alone. Several of us use a third-party aggregator to get the accurate usage data from; I use this one, which makes it very easy to get the data I need with just a couple of clicks.

There are a few reasons why you may see discrepancies apart from the rounding errors. 

• Missing data. There must be exactly 48 values for each weekday. Any day missing even just one half-hour’s figure will be discarded.
• Late data. If the usage figures for a day haven’t been applied to your account by 13:00 the following day, the day will be discarded.
• Others I either forgot or never knew about.

I have tried and failed to match my own December figures with the progress report dated 19 December. I’ve tried excluding one day when we had a power cut, but I’m still not able to match precisely, so I suspect there’s at least one day when its data arrived too late for it to be included. OVO’s half-time score was 4.82%, but the closest I can get is 4.814% on 15 December, if I ignore the power cut day.

I’ve yet to see whether I earned the reward, even though my final figure for the month was 4.758%.