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Topic Title: PV revenue
Topic Summary: Snow
Created On: 20 January 2013 05:01 PM
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 20 January 2013 05:01 PM
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perspicacious

Posts: 7239
Joined: 18 April 2006

I wonder how many Error Code 509 advising "no feed in last 24 hrs" are being dispayed on domestic PV set ups?

The 25 kW assembly on a farm roof was putting out 230 W at noon today with about 2/3 of the panels covered with 25 mm of melting snow, the rest being visible.

Regards

BOD
 20 January 2013 05:08 PM
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slittle

Posts: 3550
Joined: 22 November 2007

I've got a customer who's halfway through an install. We've done the enabling works to give the PV guys a connection.

They pulled off site Wednesday night as they had been there since Monday and only been on the roof for about two hours because of the ice and snow.

Another customer has a ground based array and when I passed that yesterday the whole thing was covered in snow.

Must be a pain for the grid as heating demand will be up given the weather and all that nice assistance from pv connections isn't there. I can almost feel the substation fuses from here


Stu
 20 January 2013 05:11 PM
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antric2

Posts: 1067
Joined: 20 October 2006

Evening,
Just off track abit, but, now the PV game has been going on intensly in domestics for a few years is there any data to suggest that even on a bright day are PV installations paying for themselves...are they worth installing and do they payback.
Regards
Antric
 20 January 2013 05:28 PM
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perspicacious

Posts: 7239
Joined: 18 April 2006

Well the 4 kW set up (sic) has generated 3618 kWh in the last 11 months. I'll provide an update when it is a year old....

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BOD
 20 January 2013 05:49 PM
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antric2

Posts: 1067
Joined: 20 October 2006

Originally posted by: perspicacious

Well the 4 kW set up (sic) has generated 3618 kWh in the last 11 months. I'll provide an update when it is a year old....



Regards



BOD

Ok Thanks....
 21 January 2013 12:17 PM
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AJJewsbury

Posts: 11546
Joined: 13 August 2003

and my 2.16kWp system is almost exactly 2 years old now and has generated 3,777 kWh.
- Andy.
 21 January 2013 12:47 PM
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Patnik

Posts: 171
Joined: 25 June 2008

... and our 2.4kWp system 3,778 kWh in 2 years - would have been more if I'd checked in the attic and noticed one of the inverters had failed instead of ignoring the reduced output and blaming it on the weather for 3 months (now replaced under warranty).
 21 January 2013 12:53 PM
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Patnik

Posts: 171
Joined: 25 June 2008

My understanding is that they get a bit warm when generating so if the suns out just clearing a bit of each array is likely to result in the remaining snow melting and slipping off. Not so easy when they're on the roof though - maybe one of those upstairs window brushes, a step-ladder and a wide-brimmed hat.
 21 January 2013 06:47 PM
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aligarjon

Posts: 2867
Joined: 09 September 2005

get the hosepipe out if they're on the roof, that will shift the snow if its sticking around.




-------------------------
Specialised Subject. The Bleedin Obvious. John Cleese
 22 January 2013 07:07 AM
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Thripster

Posts: 646
Joined: 22 August 2006

Ali, you intending to whip the snow off with the hose? That is, you will not be getting any water out.

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