Renewables: "talking 'bout my generation"

Oscargrouch

7.9 kWh today, better than yesterday, infact more than double.:rotfl: 0.03kWh above PVGIS an extra bonus. :j

KevinG

6.72kWh, so-so, also more than double yesterday's. Just above PVGIS.

jkpaul

sly_dog_jonah wrote: »

I've done some calculations based on your previous consumption per day, your generation per day and your (import+export) per day which your meter has been incorrectly adding together.

Thank you!

sly_dog_jonah wrote: »

The calculations are based on the important assumption that your household consumption of electricity has not changed since you had the PV installed. In other words, you haven't started consuming more electricity in the household, and you haven't reduced it either. The important note is that I'm referring to consumption (i.e. what your appliances, lights used), not import, generation or export. Since this assumption is what electricity companies rely on to estimate customer usage, they should be OK with that.

Seems reasonable - nothing major has changed, behaviour slightly as is inevitable with the panels, but we are limited to how much we can (& do) do during the day - we're all out almost all day every (week) day. No immersion use generally (pre- or post-PV), only gas heating & water & cooking.

sly_dog_jonah wrote: »

So in other words, your meter has been over-reading by 5.75kWh/day on average, and should be recording 12.25kWh per day. This means you are exporting on average 54% of your generation, which seems reasonable.

Errr, can I say "Wow!"?

:T

I'm not bad at maths & enjoy a bit of a challenge whenever the kids have algebra homework to do, but it's been a while since the last simultaneous equations and although I thought there was surely a way to work this out and that 6 units per day was probably about right, I'd never got this far, so thank you very much!

sly_dog_jonah wrote: »

Therefore on this basis, the offer from your company of a credit of 9kWh/day is very generous: I eat my words from last night, but I didn't have all the facts in my defence.

No, they offered 6 units, I refused and suggested 9 (;)) and they rejected this and directed me to their complaints procedure.

I realise that this sounds churlish now, but my reasoning was that their guesstimate (for they didn't offer any such logical method as you) wasn't hugely generous and if I was to accept a guess it should be a positive one. If they were not being generous then it would be better for me to push for an accurate answer based on a technical engineer interrogating the meter with an optical reader & software. If I'd accepted 6 units I'd have felt cheated & suspected that the accurate figure was much more. I did say to them that I'd be happier with a lower but accurate figure than a guess of 6!

sly_dog_jonah wrote: »

Hope that helps, and good luck :beer:
PS Hope you've got the new meter installed now!

That helps very much, thanks! :A

But no, I refused to allow them to change the meter yet as I feel once they do my chance to get an accurate credit will have gone. There is no more danger of a problem now than when I was ignorant but suspicious of an issue - at least now I know. The readings are all logging nicely in the pre-existing meter and I don't want them to change it until they have read it!

The only slight down side to this is that I'm still paying over the odds, but as you've pointed out, it's probably less than 75p per day ... I'll survive until we get the credit!

shafeeq

Hi

10.48kwh today. Lot better then yesterday

EricMears

zeupater wrote: »

Hi

What do use your nighttime electricity for ? ... that's probably the best place to start .... HW or HW & heating, morning/evening electric showers ? .... any changes in your usage patterns ... draughtproofing, insulation, cylinder jackets ...

On a direct comparison you've also accidentally & unfortunately chosen the wrong two years to compare ... winter 2010/11 was uncommonly cold and winter 2011/12 was uncommonly mild ...

Aah, good point. OH insists on having a fan heater (set at frost setting) in her greenhouse in really cold spells but we used it very sparingly last winter. But I think that's only half a kW and only used for a couple of months so won't explain a few thousand units.

Apart from that, E7 supplies only invoked for dish washer, washing machine, pumping water to loft and first hot drink of day (plus normal background running of course). First three of them now run on SP whenever possible. No electrical water heating (apart from my occasional 110v immersion) - it's all done by oil or logs (but both need an electrical circulating pump to work).

EricMears

16.99 kWh today (nearly 4 above PVGIS).

As usual, weather forecast last night gave no inkling of that being likely although revisions this morning were a bit more hopeful (but didn't lead me to expect generation at that level).

Forecast is cloudy rainy all day tomorrow (so far). Expect therefore I'll be reporting record generation ! :rotfl::rotfl::rotfl:

Oscargrouch

shafeeq wrote: »

Hi

10.48kwh today. Lot better then yesterday

Bummer; you beat me ! :rotfl: Where has Sheffield gone?;)

jackieblack

11kWh here yesterday

sly_dog_jonah

jkpaul wrote: »

Errr, can I say "Wow!"?

:T

I'm not bad at maths & enjoy a bit of a challenge whenever the kids have algebra homework to do, but it's been a while since the last simultaneous equations and although I thought there was surely a way to work this out and that 6 units per day was probably about right, I'd never got this far, so thank you very much!

I'm glad my GCSE Maths came in useful, and that no-one else has picked it apart.

jkpaul wrote: »

No, they offered 6 units, I refused and suggested 9 (;)) and they rejected this and directed me to their complaints procedure.

I realise that this sounds churlish now, but my reasoning was that their guesstimate (for they didn't offer any such logical method as you) wasn't hugely generous and if I was to accept a guess it should be a positive one. If they were not being generous then it would be better for me to push for an accurate answer based on a technical engineer interrogating the meter with an optical reader & software. If I'd accepted 6 units I'd have felt cheated & suspected that the accurate figure was much more. I did say to them that I'd be happier with a lower but accurate figure than a guess of 6!

Go back to them and if the offer of 6kWh is still on the table, I'd take it to save your sanity and put the issue to bed.

jkpaul wrote: »

But no, I refused to allow them to change the meter yet as I feel once they do my chance to get an accurate credit will have gone. There is no more danger of a problem now than when I was ignorant but suspicious of an issue - at least now I know. The readings are all logging nicely in the pre-existing meter and I don't want them to change it until they have read it!

The only slight down side to this is that I'm still paying over the odds, but as you've pointed out, it's probably less than 75p per day ... I'll survive until we get the credit!

The cost of them sending the technician out to take the 'forensic' reading is probably way more than the amount being disputed, so I can understand OVO dragging their heels. It's in your interests to have the correct meter installed ASAP and put an end to the saga, so that's what I'd do if I was in your shoes.

John_Pierpoint

Not everyone can come up against a supplier who is too set in its ways to understand the error in its thinking; and so is prepared to negotiate a settlement like this one after 4 months of hassle:

https://forums.moneysavingexpert.com/discussion/comment/45073114#Comment_45073114