We'd like to remind Forumites to please avoid political debate on the Forum... Read More »
We're aware that some users are experiencing technical issues which the team are working to resolve. See the Community Noticeboard for more info. Thank you for your patience.
📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!
So now I have a solar PV system how do I make the most of it???
Options
Comments
-
Originally Posted by grahamc2003
Were the Owl and generation meter initialised to zero at the install, and have both measured the energy generated since? Are the readings currently 482kWh for the Owl, and 331 for the generation meter? If so, that's quite a difference, even with the explanation before of the small nighttime inverter power requirements being registered by the owl at (eg) 35W (leading to a 70W error of course, or about 1kWh error per night).
Edit, just seen someone else said the same, and your referral to post 1201 (you could put a link in).
The bag of fag packet maths there isn't correct, mainly because the error is double the owl night meter reading (which I think you said was 113W(?)). Not sure why it reads such a high value - my owl reads 0W at 0W, but 35W at small loads, but the spec I think says the accuracy is undefiend for loads less than 200W.
wow, this one is gonna be fun
Originally Posted by grahamc2003
Were the Owl and generation meter initialised to zero at the install
is that a serious question?
, and have both measured the energy generated since?
no, they have measured power.....
Are the readings currently 482kWh for the Owl, and 331 for the generation meter?
where did you get these numbers?
if so, that's quite a difference, even with the explanation before of the small nighttime inverter power requirements being registered by the owl at (eg) 35W (leading to a 70W error of course, or about 1kWh error per night).
huh? the maths does explain the difference.....
Edit, just seen someone else said the same, and your referral to post 1201(you could put a link in).
too lazy to look yourself? and its post 1102 not 1201......
The bag of fag packet maths
huh?
there isn't correct
care to elaborate?
, mainly because the error is double the owl night meter reading
huh?
(which I think you said was 113W(?)).
yes....
Not sure why it reads such a high value - my owl reads 0W at 0W, but 35W at small loads
are you stating that all Owl’s have, or should have, identical night time error readings?
my grandad has smoked 80 fags a day all his life, cigarettes aren't harmful, your point?
, but the spec I think says the accuracy is undefiend
ok, dont go there, cardew watching....
for loads less than 200W.
grahamc2003 wrote: »Well, it's pretty clear to me from Don's 3 word inane responses to the considered posts posted today (and before) that he simply isn't at all interested in the accuracy or not of his owl, or for that matter his generation meter. He's just here for attention, at not interested in answering any of the many points raised (just read the recent responses). And no answer as to why he doesn't simply read the generation meter if he wants to know what he's generating, or more importantly, if he wants to inform others as to what he's generating.
hope this is better than the 3 word inane responses you accuse me of
as to your comment about "considered" posts............:D0 -
Ok, if you're all going to post numbers that big, I don't want to play anymore.
As Eric Cartman would say, 'Screw you guys I'm going home!'
M.:(Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0 -
176.2kWh0
-
170kWh here so far this month. Last year our January production was only 90 kWh,so a vast improvement.predicted output is 124kWh. Just shows what huge variations you can have even in the same place.Enough money to live on so retired early...planning to see where life takes me:D0
-
teachergirl wrote: »170kWh here so far this month. Last year our January production was only 90 kWh,so a vast improvement.predicted output is 124kWh. Just shows what huge variations you can have even in the same place.
clearly TOWIE!0 -
give kWh numbers!2.22kWp Solar PV system installed Oct 2010, Fronius IG20 Inverter, south facing (-5 deg), 30 degree pitch, no shadingEverything will be alright in the end so, if it’s not yet alright, it means it’s not yet the endMFW #4 OPs: 2018 £866.89, 2019 £1322.33, 2020 £1337.07
2021 £1250.00, 2022 £1500.00, 2023 £1500, 2024 £13502025 target = £1200, YTD £690
Quidquid Latine dictum sit altum videtur0 -
teachergirl wrote: »170kWh here so far this month. Last year our January production was only 90 kWh,so a vast improvement.predicted output is 124kWh. Just shows what huge variations you can have even in the same place.
Was starting to wonder if you were still around2.22kWp Solar PV system installed Oct 2010, Fronius IG20 Inverter, south facing (-5 deg), 30 degree pitch, no shadingEverything will be alright in the end so, if it’s not yet alright, it means it’s not yet the endMFW #4 OPs: 2018 £866.89, 2019 £1322.33, 2020 £1337.07
2021 £1250.00, 2022 £1500.00, 2023 £1500, 2024 £13502025 target = £1200, YTD £690
Quidquid Latine dictum sit altum videtur0 -
jackieblack wrote: »I usually do, but as my 2.22kWp system (with 2kW max output inverter) is so much smaller than most others being quoted here I thought % might make for an easier comparison
I wouldn't worry about it, with my panel angles, there are people out there with solar powered calculators that are getting more kWh's than me at the moment!
Currently reading zero (9.20am), but it is cold and grey outside, and started snowing 2 hours ago.
Come on, I only need 2 more to hit Jan target.
M.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0 -
the battle may be lost, but not the war!
as of yesterday, 173.5kWh for the month so far
The clue's in your signature, of course (as highlighted in red) - with a 49 degree pitch your winter figures will be excellent.
The price you pay for that is that your summer output will be reduced.
Just to reassure some of the others in here..........:)
"3.9kWp panels. 3.5kWp Fronius inverter. Essex. South facing roof. 49 degree pitch roof."
0 -
The clue's in your signature, of course (as highlighted in red) - with a 49 degree pitch your winter figures will be excellent.
The price you pay for that is that your summer output will be reduced.
Just to reassure some of the others in here..........:)
"3.9kWp panels. 3.5kWp Fronius inverter. Essex. South facing roof. 49 degree pitch roof."
Hiya Doc, don't worry, we're all getting ready to 'stick it to him' come April. Don's recently placed an order with Jewson's for 400 sandbags. Till then he's getting in as many tongue-in-cheek jabs as he can.
I've still got my old paintball marker somewhere in the loft, I wonder how good those numbers will be with a 1,000 carefully chosen splats?
M.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0
Confirm your email address to Create Threads and Reply

Categories
- All Categories
- 351K Banking & Borrowing
- 253.1K Reduce Debt & Boost Income
- 453.6K Spending & Discounts
- 244K Work, Benefits & Business
- 598.8K Mortgages, Homes & Bills
- 176.9K Life & Family
- 257.3K Travel & Transport
- 1.5M Hobbies & Leisure
- 16.1K Discuss & Feedback
- 37.6K Read-Only Boards