Some 'real world' results (Solar PV)
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- kellys_eye
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Some 'real world' results (Solar PV)
I got this information from my BiL who had a system fitted just before the 43p/kWhr FiT amount was withdrawn/reduced......
SYSTEM : 10 off Solar PV panels with total rated output of 2.35kW/hr cost unknown (can anyone give a figure for this?)
The following figures relate to readings taken during 2012
Total annual power output 1226kW/hr (works out at an overall efficiency of 11.6%)
Best output (week) 1st week in May (93kW/hr for the week)
Worst output (week) 1st week Jan (0.6kW/hr for the week)
If he had been paid 'the going rate' for the power produced he would have received £183.90 for the electricity produced.
As it worked out, he was paid £527.18 for the power produced. His electricity bill for 2012 was effectively 'zero'.
Based on an installation fee of (guessing here) £4,000 he will break even in around 10-12 years - taking into account drops off of efficiency, depreciation/iinterest payments and a steady FiT return as already being received but discounting any breakages, servicing or repairs etc.
Only after 10 years (minimum) will he actually see a return on his money - and this is WITH a ridiculous FiTs return........
These are real-world figures.
Still interested in installing a set?
SYSTEM : 10 off Solar PV panels with total rated output of 2.35kW/hr cost unknown (can anyone give a figure for this?)
The following figures relate to readings taken during 2012
Total annual power output 1226kW/hr (works out at an overall efficiency of 11.6%)
Best output (week) 1st week in May (93kW/hr for the week)
Worst output (week) 1st week Jan (0.6kW/hr for the week)
If he had been paid 'the going rate' for the power produced he would have received £183.90 for the electricity produced.
As it worked out, he was paid £527.18 for the power produced. His electricity bill for 2012 was effectively 'zero'.
Based on an installation fee of (guessing here) £4,000 he will break even in around 10-12 years - taking into account drops off of efficiency, depreciation/iinterest payments and a steady FiT return as already being received but discounting any breakages, servicing or repairs etc.
Only after 10 years (minimum) will he actually see a return on his money - and this is WITH a ridiculous FiTs return........
These are real-world figures.
Still interested in installing a set?
Don't take it personally......
- BillyGoat
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Re: Some 'real world' results (Solar PV)
Something doesn't sound right there KE.
What inverter has he got, how many strings and what's the peak output that he has ever seen/recorded?
What is the orientation of the panels?
Any shading (aerials, chimneys, trees, etc).
BG
What inverter has he got, how many strings and what's the peak output that he has ever seen/recorded?
What is the orientation of the panels?
Any shading (aerials, chimneys, trees, etc).
BG
Arguing with a woman is like reading a Software Licence Agreement.
In the end, you ignore everything and click "I agree".
In the end, you ignore everything and click "I agree".
- BillyGoat
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Re: Some 'real world' results (Solar PV)
Just to add to this, here is a post on another Navitron about production records:
http://www.navitron.org.uk/forum/index. ... #msg220833
The one I link too is a 1.98kWp PV (11 x Sharp 180 and SB1700) system from his own sig - other productions to reference against. It's almost double your bil's system!
I'm at (a mate owns) a Solar PV company - he says there is something wrong there too!
BG
http://www.navitron.org.uk/forum/index. ... #msg220833
The one I link too is a 1.98kWp PV (11 x Sharp 180 and SB1700) system from his own sig - other productions to reference against. It's almost double your bil's system!
I'm at (a mate owns) a Solar PV company - he says there is something wrong there too!
BG
Arguing with a woman is like reading a Software Licence Agreement.
In the end, you ignore everything and click "I agree".
In the end, you ignore everything and click "I agree".
- kellys_eye
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Re: Some 'real world' results (Solar PV)
I'm using the output records he provided - he admits his installation isn't the 'best' but there are no obstructions, his roof has a pitch of (guessing here) 55 degrees and it's facing SE. Mind you, he does live in central Scotland
PS X-axis is week number
PS X-axis is week number
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Don't take it personally......
- Someone-Else
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Re: Some 'real world' results (Solar PV)
Interesting, funny that really, you don't hear any more about solar panels for your roof. It seems to have dies a death last year.
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Would you hit a nail with a shoe because you don't have a hammer? of course not, then why work on anything electrical without a means of testing Click Here to buy a "tester" just because it works, does NOT mean it is safe.
If gloom had a voice, it would be me.
Click Here for a video how to add/change pictures
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- BillyGoat
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Re: Some 'real world' results (Solar PV)
The media has stopped berating it, you mean.
I can assure you there is still interest.....
I can assure you there is still interest.....
Arguing with a woman is like reading a Software Licence Agreement.
In the end, you ignore everything and click "I agree".
In the end, you ignore everything and click "I agree".
- Someone-Else
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Re: Some 'real world' results (Solar PV)
Yes, I guess that is what I mean. But no leaflets etc about it either.
Above are my opinions Below is my signature.
Would you hit a nail with a shoe because you don't have a hammer? of course not, then why work on anything electrical without a means of testing Click Here to buy a "tester" just because it works, does NOT mean it is safe.
If gloom had a voice, it would be me.
Click Here for a video how to add/change pictures
Inept people use the QUOTE BUTTON instead of the QUICK REPLY section
Would you hit a nail with a shoe because you don't have a hammer? of course not, then why work on anything electrical without a means of testing Click Here to buy a "tester" just because it works, does NOT mean it is safe.
If gloom had a voice, it would be me.
Click Here for a video how to add/change pictures
Inept people use the QUOTE BUTTON instead of the QUICK REPLY section
- kellys_eye
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Re: Some 'real world' results (Solar PV)
My bad - his panels are directly south......
AAIK any drop of interest in these panels could be due to the decrease in FiTs that have been brought in along with fears that they will be cut still further.
Personally I still maintain they would be ok if they were fitted for a decent price (not the artificially inflated price as charged by MSC(?) certified companies) BUT without the SUBSIDY they would never show a return - and THAT'S what's wrong with the system - subsidies.
AAIK any drop of interest in these panels could be due to the decrease in FiTs that have been brought in along with fears that they will be cut still further.
Personally I still maintain they would be ok if they were fitted for a decent price (not the artificially inflated price as charged by MSC(?) certified companies) BUT without the SUBSIDY they would never show a return - and THAT'S what's wrong with the system - subsidies.
Don't take it personally......