Struggling to achieve Power Move target!

So, got my "are you on track" email today, and I'm currently (as of when they crunched the numbers whenever that was) coming in at 12.88% which frankly is just weird. At the halfway point last month I was at 10.11%.

Both my wife and I are still out of the house most days between 4 and 7, and our usage outside that timeframe has actually increased due to needing to use a couple of fan heaters and the gas central heating more (GCH uses an electric pump after all) because it's been a wee bit cold the last couple weeks.

If anything, that increased usage outside the 4-7pm window should actually make the important percentage lower. Strangely that doesn't seem to be the case. I think the magic monkey and his Casio calculator is using some hitherto unknown method for working these things out. Or maybe he forgot to carry a 2 or something. 

We haven’t done anything different and have had an email to say we are on 9.67%….no idea how they are measuring it!

I’m on track and the email figure (recd today ) virtually agrees to my own manual figures - looks like it was measured on 15th December.

I'm off target too, and have really tried to cut back.

Same here. Last month we hit 10.5% and now we are informed that we are 12.85.

Isn't that a coincidence almost the same as your figures. I do hope someone isn't applying a 'correction factor'.

Those doubting figures- you can easily double check usage on your OVO App - counted dates so far are 1,2, 5,6,7,8,9,  12,13,14,15  Dec simply get your total KW/h for each day ( the figure is shown on your App) add them together we’ll call this X . Check your usage each of these days in the 16-00-19-00 time slots (add together the 3 slots) for your Daily figure. Add these together for all the dates above we’ll call this Y  =  Y / X gives you your % used 16.00-19.00 this should agree or be close to the OVO figure in your email. 

We've gone up to 18.sth%,  more central heating and space heater for short bursts wfh,  also we couldn't use our washing machine as it froze in our outhouse which is always used a m. or post 7pm.

I work from home - I’m in most days. I’ve been extra careful to make sure there are no extra lights or appliances running to generally reduce usage and keep costs down given the current price of power - but this does make it harder to stay on track between 4 and 7 at this time of year - I do understand that in effect that’s the point - we are all switching on lights and cooking dinner etc between those times - but in a rural location, without mains gas, or street lights - even the oil boiler relies on electricity to run the pump and power the controller. Ironically I’ve found that by being less careful all day it’s easier to stay on target during the peak hours - which does somewhat defeat the object. 
That said - I’m on track and monitoring daily on a spreadsheet so that I can address any over-use the following day.
I do wonder whether a multi-level charging system might be fairer though - perhaps based on the ‘average’ usage being charged at a lower rate and above average usage slightly more expensive … for example the first xxKw of the day charged (or even capped) at one rate, the next xxKw charged at a higher rate and maybe even a highest level for extreme use charged at a highest rate for usage over xxKw in a 24 hour period.
I guess an alternative is the public-transport model of charging saver, off-peak and peak rates - so one rate applies to the current ‘off-peak’ hours as per the trail (Mon-Fri 00:00 - 15:59 and 19:00 to 23:59 / Sat Sun 00:00 to 23:59) and another rate applies between 16:00 and 18:59 Mon - Fri) Perhaps with a basic ‘saver’ rate applied to the first xxKw to reward the lowest users. That way those who are able to reduce overall consumption and those who are already low-usage benefit - everyone has the opportunity to save during peak times by moving power consumption or switching off and those who consume above average pay a little extra. 
Anyway - fingers crossed I’ll remain on target and if nothing else I do have a better understanding of the ‘tick-over’ costs of running fridges, routers, freezers, etc when the house is unoccupied and also where my daily power-spikes are and what causes them. I’m not keen on the idea of having appliances running while I’m out or when I’m in bed though - so I guess its fortunate that I’m usually in during the day and able to spread out usage during the day and in the evenings to fit around Power Move.

@Coldspur Andy Oh I know that. I just can't be wasting that sort of time when I'm working 13 hours a day at the minute. I just find it strange that our usage on the 4-7pm slot can't have gone up cos there's no one in, and our usage outside 4-7pm has definitely gone up, so logically that should bring down the percentage in the 4-7 window. Unless the fridge and freezer have been kicking in a lot more during the window than last month I guess. Always possible, but I'm not turning those off under any circumstances.

We are on track now but were also on track this time last month and didn’t reach the target at the end of the month. So not hopeful really - just missed it last month by a tiny amount. Not really done anything different. Can’t see much else we can do!