Skip to main content
Solved

How is the Power Move flex base figure calculated?

  • October 9, 2024
  • 36 replies
  • 505 views

Regarding yesterday's power move down, the email never provided the base figure for the hour. How do we calculate this?

Best answer by Abby_OVO

Updated on 20/01/26 by Chris_OVO

 

Over the 18 months, Power Move Flex (as part of CrowdFlex) has shifted 864,700 kWh's and paid out over £1.02 million in bill credits.

We've had over 100,000 customers take part over the 3 trials in which Power Move Flex helped match the demand to the power being generated. So homed used cleaner, greener energy.

The trials were aimed at understanding how households can contribute to a greener electricity grid. The learnings we gathered from being part of these trials will be essential for the Electricity System Operator to plan for the future of the electricity grid, and how our customers can play a role in this. Together we've been making energy better for people and the planet. 

 

Our current trials are now closed, and we'd like to thank our users for their participation.

You can find more information Power Move can be found here:

 

Hey @Ria 

 

Regarding yesterday's power move down, the email never provided the base figure for the hour. How do we calculate this?

 

Sorry for any confusion. I did double check this with the team in regards to what the baseline is with these events. 

 

In summary, the baseline is the typical usage for that time period based on your consumption for the last 10 working days.

 

In the terms, section 3.4, explains how we calculate a baseline, and customers should be able to follow the directions if they wanted to understand their personal baseline better.

I hope this helps.

36 replies

  • Newcomer
  • October 9, 2024

I couldn’t take part in this as my smart meter isn’t connected to my new meter


Forum|alt.badge.img+1
  • Rank 8
  • October 9, 2024

I also noticed that but as I only use about a quarter of a KWh between 3 and 4 on a typical weekday afternoon, the offer of 50p to save a whole KWh made it all seem a bit irrelevant.


  • Rank 2
  • October 9, 2024

I had the same query.  1 kilowatt less than what? I use virtually nothing at that time of day anyway so doubt I can use less, though I did spot the email just in time to delay getting the mower out but there wasn't enough warning to plan ahead really.


  • Author
  • Rank 7
  • October 9, 2024

I had the same query.  1 kilowatt less than what? I use virtually nothing at that time of day anyway so doubt I can use less, though I did spot the email just in time to delay getting the mower out but there wasn't enough warning to plan ahead really.

I was the same and was about to cook a dinner between 3 & 4 instead of waiting til after 7, and spotted the email just in time, so I had a sandwich instead. It was only when I looked at it a bit later I realised a kwh less than what? Normally I only use between 2 & 3 kwh a day but I had recently had workmen in for a while so sometimes electric was being used at that time, although 4pm was pack up time.


BPLightlog
Super User
Forum|alt.badge.img+9
  • Super User
  • October 9, 2024

I couldn’t take part in this as my smart meter isn’t connected to my new meter

Are you referring to your in home display (IHD) ? Unless you’re relying on that for info on usage, it won’t affect the data used by OVO


Forum|alt.badge.img+1
  • Newcomer
  • October 9, 2024

For 1 hour between 3:00 PM and 4:00 PM on 08 October. 

Avoid use of non-essential electricity.

You’ll receive £0.20 credit towards your energy bill for every kWh you shift.

That what my email says. I assume, that the tariff for that period of time would be 20p per each 1kWh used less than I usually use at the same period of time on weekdays. (It’s still confusing to me with the weekends, which are not counted, but which are taken into account)
I guess, that everything less would be counted from that 20p per 1kWh.


Forum|alt.badge.img+1
  • Rank 8
  • October 9, 2024

My message definitely said 50p.  Presumably I would got 50p for every kWh used less than my normal 0.25 kWh between 3 and 4pm - which would mean I would gain 12.5p if I used zero electricity for that hour.  


Forum|alt.badge.img+1
  • Rank 8
  • October 9, 2024

OVO are now messaging about another event tomorrow between “12.00pm and 12.30pm”.  I would have thought that a company of their size would know that there is no such time as 12.00pm or 12.00am - it’s either 12 noon or 12 midnight !


Firedog
Super User
Forum|alt.badge.img+7
  • Super User
  • October 9, 2024

Thanks for pointing this out - I was feeling rather lonely in my objection to this illogical usage. 12:00 is midday, midnight is  00:00. In some circumstances, 00:01 and 23:59 are used for periods that start or end at midnight.

Tomorrow 10 October, which is the earlier time - 11:59pm or 12:00pm?

 


  • Author
  • Rank 7
  • October 9, 2024

The 24 hr clock would have best for clarity, that said 12.30pm is definitely afternoon and they wouldn't be doing a 12.5 hr power up so 12pm is noon🤣


Abby_OVO
Community Manager
Forum|alt.badge.img+4
  • Community Manager
  • Solved
  • October 10, 2024

Updated on 20/01/26 by Chris_OVO

 

Over the 18 months, Power Move Flex (as part of CrowdFlex) has shifted 864,700 kWh's and paid out over £1.02 million in bill credits.

We've had over 100,000 customers take part over the 3 trials in which Power Move Flex helped match the demand to the power being generated. So homed used cleaner, greener energy.

The trials were aimed at understanding how households can contribute to a greener electricity grid. The learnings we gathered from being part of these trials will be essential for the Electricity System Operator to plan for the future of the electricity grid, and how our customers can play a role in this. Together we've been making energy better for people and the planet. 

 

Our current trials are now closed, and we'd like to thank our users for their participation.

You can find more information Power Move can be found here:

 

Hey @Ria 

 

Regarding yesterday's power move down, the email never provided the base figure for the hour. How do we calculate this?

 

Sorry for any confusion. I did double check this with the team in regards to what the baseline is with these events. 

 

In summary, the baseline is the typical usage for that time period based on your consumption for the last 10 working days.

 

In the terms, section 3.4, explains how we calculate a baseline, and customers should be able to follow the directions if they wanted to understand their personal baseline better.

I hope this helps.


Forum|alt.badge.img+1
  • Newcomer
  • October 10, 2024

OVO are now messaging about another event tomorrow between “12.00pm and 12.30pm”.  I would have thought that a company of their size would know that there is no such time as 12.00pm or 12.00am - it’s either 12 noon or 12 midnight !

12pm is midday, 12am is midnight. 


Forum|alt.badge.img+1
  • Rank 8
  • October 10, 2024

I don’t think I can be bothered with getting into an argument about this but how can 12am come immediately before 00:01am ?    


juliamc
Rank 20
Forum|alt.badge.img+8
  • Rank 20
  • October 10, 2024

Isn’t it because 12am is on a 12 hour clock and 00:01 is on a 24 hour clock. By rights 12 noon shouldn’t be 12pm (post meridian) it should be 12m 🙃


Forum|alt.badge.img+1
  • Rank 8
  • October 10, 2024

I think it’s because midnight and noon are neither are neither am nor pm, they are as you say just “m” But if you are using 12 hour clock is 12 noon 12m or 0m ??

Best to use 24 hour clock which excludes the need for am or pm.  


Forum|alt.badge.img+1
  • Newcomer
  • October 10, 2024

12am comes immediately before 12:01am. 00:01 is 24 hour format, it doesn’t have “am” and “pm” part. Look at that this way - 12:00 and one second am (12h00m01sec) is after the midnight, therefore 12 midnight falls into “am” time period. We just not mentioning seconds. The same with 12pm. 


Forum|alt.badge.img+1
  • Rank 8
  • October 10, 2024

Noon is midday, the meridiem, so it can’t at the same time be post meridiem or, indeed, ante meridiem.

😴😴😴


Firedog
Super User
Forum|alt.badge.img+7
  • Super User
  • December 4, 2024

According to the Crowdflex terms, the baseline against which consumption shifts are reckoned are AIUI:

  • Weekday events: the average of the previous 10 weekday consumption figures for the same hours.
  • Weekend events: the average of the previous 4 weekend day/bank holiday consumption figures for the same hours.

Today I was invited to take part in a Power Down (PD) event (08:00-09:00). This is exactly the same period as an earlier weekday PD event (21 November), which is one of the 10 working days before today. There was another day with a PD event (29 November), but at a different time.

In these circumstances, there are at least four possibilities:

  1. The fact that an earlier event coincided time-wise is ignored. The baseline average is lower as a result, putting the customer at a disadvantage.
  2. Days in the ten-day period with an event at the same time of day are excluded from the calculation. There will be fewer than 10 baseline days.
  3. Days in the ten-day period with an event at any time of day are excluded from the calculation. There will be fewer than 10 baseline days.
  4. The ten-day period is extended backwards to include ten non-event weekdays.  

I seem to remember reading that event days were excluded from the calculation, but I can’t find the reference now. Nor can I recall whether it was only days with events at the same time of day that were excluded, or any day on which an event took place, or whether days were added to bring the number of included baseline days up to ten. There’s also the question of whether ‘events’ in this case covers both types of event (PD and PU), or only events of the same type. 

This uncertainty makes it difficult to check OVO’s workings.  Could we get some clarity, please? ​@Ashley_OVO ?


Forum|alt.badge.img+1
  • Rank 8
  • December 4, 2024

Firedog,

In your second bullet point about Weekend Events, did you mean to say weekend day/ bank holiday rather than weekday/bank holiday ?


Firedog
Super User
Forum|alt.badge.img+7
  • Super User
  • December 5, 2024

Of course I did, thanks! The evils of using c&p when you’re in energy-saving mode. I’ve done the edit.


Chris_OVO
Community Manager
Forum|alt.badge.img+4
  • Community Manager
  • December 5, 2024

Morning ​@Firedog

 

I’ve spoken with Ash this morning he’s taken the questions away to the team and i’ll update the thread with a response when we have one 😊

 

If you have any follow up questions or thoughts let me know and I can forward them on. 


Chris_OVO
Community Manager
Forum|alt.badge.img+4
  • Community Manager
  • December 6, 2024

Morning ​@Firedog,

 

Ash came back with an update:

"It's option 4. We look in the previous 60 days for the 10 most recent non-event days (for working days).

We use the P376 baseline methodology which is what was used for Demand Flexibility Service. You can find the NESO methodology documentation here (appendix 5, pages 38-39) - https://www.neso.energy/document/286981/download"

 

I hope this helps and if you have any questions reach out and i’ll find the answers! 


Firedog
Super User
Forum|alt.badge.img+7
  • Super User
  • December 6, 2024

We use the P376 baseline methodology ...
 

That’s great, thanks (and to Ashley)!

For anyone interested, so we have an answer to mark, these ares the relevant passages (very lightly edited):
  

  • For Working days (Monday – Friday)
    The baseline is calculated using data from the 10 most recent eligible days.
      
  • For Non-working days (Saturday, Sunday and bank holidays) the baseline is calculated using 4 most recent eligible days.
    From the 4 most recent days the mean average of the 2 median days will be taken.
      
  • Days will not be eligible if they have been days where DFS has been used.
      
  • The selection of eligible days is taken from the time D-60 to D-1 [i.e. the last 60 days].
      
  • The baseline is found by adding together all the days’ actual usage in the period then dividing by the number of days.


If anyone can work out what the mean average of the 2 median days means, I’d be delighted to hear! My own guess is that, for example, if the last four eligible days were Saturday1, Sunday, Bank Holiday Monday and Saturday2, the baseline would be the average of usage on the Sunday and the Monday, being the two days in the middle.


Forum|alt.badge.img+1
  • Rank 8
  • December 6, 2024

The median is the middle value of a set of data.  Here I think it just probably means that you take the two middle days of the 4 and then work out the mean (what is usually understood by the average) of these two days.

I think !

 


Firedog
Super User
Forum|alt.badge.img+7
  • Super User
  • December 8, 2024

I was cogitating over this last night, and it’s possible we’re both wrong. The usual reason for using the median of a set of values instead of the mean is to minimize the undue influence of outliers. When there are only four values involved, this influence on the mean could be very misleading. It would make sense, therefore, to take the median to find a ‘reasonable’ baseline. IOW, put the four values in order, then take the mean of the middle two. This would avoid, for example, a profligate family Sunday skewing the picture of ‘normal’ usage.

Here’s an example if anyone’s interested …
  

Which gives a truer picture of ‘normal; usage?