NFU Mutual Smallholding Insurance

Author Topic: Solar PV Production  (Read 78766 times)

Big Light

  • Joined Aug 2011
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Solar PV Production
« on: December 31, 2012, 08:54:27 am »
Hi  :wave: ,
 we got 4kw of Panels installed at the end of October (to catch the end of the 16p tarriff), we are in central Scotland and have the following results for the last 2 months

Nov  - 112 units
Dec - 70 units

We have panels on 2 strings 11 on a generally south facing roof and 5 on a SW facing roof

we  have obviously benefitted from the free electricity and will get a little back from FITS  / Export tarriff.

We were interested in what everyone else was producing and if they kept records monthly / yearly? to see if we were comparable or not ( it has been a miserable couple of months and hoping to pick up in the spring /  summer)

If posting please put general location in country, orientation of panels (S , SW etc)  ,  size of system and if not monthly production then the period it was produced over IE 6 month summer / autumn, June - Sept etc  - (ideally last 12 months would be good)

Hopefully this will be quite incitefull for those that have panels and those considering them and i guess if people have low or high readings then maybe learning points also.

Have a good New Year when it comes
thanks
BL


henchard

  • Joined Dec 2010
  • Carmarthenshire
    • Two Retirees Start a New Life in Wales
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Re: Solar PV Production
« Reply #1 on: December 31, 2012, 11:30:38 am »
I just jot my readings down quarterly for the FIT payment


A fairly accurate estimate can be found from this site


http://re.jrc.ec.europa.eu/pvgis/apps4/pvest.php


my 3.9kw system will do around 3200 kwh in its first year (Feb to Feb) which is a tad below the estimate but it has been a bad year.

Big Light

  • Joined Aug 2011
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Re: Solar PV Production
« Reply #2 on: December 31, 2012, 03:32:28 pm »
Interresting website i was exact for the first month and a little up for the second.

What general location in the Uk are you Henchard?

henchard

  • Joined Dec 2010
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Re: Solar PV Production
« Reply #3 on: December 31, 2012, 04:19:04 pm »
Interresting website i was exact for the first month and a little up for the second.
What general location in the Uk are you Henchard?
Carmarthenshire. That site predicts 3310 kwh for a year whilst my actual is likely to be around 3200; but as I say a bad year weather wise and I have a tiny bit of panel shading in the winter months.

HenLivingstone

  • Joined Jan 2013
Re: Solar PV Production
« Reply #4 on: January 16, 2013, 08:16:08 pm »
We're in S Oxon. I have a 3.5kW peak output array facing WSW so far from ideal, but still produces approx 3000 kWh per year. I have some half hourly data for it somewhere. Because of the WSW orientation it never generates above 2.85kW, though on a good summer day I generate up to 23kWh. Over the last week it's ranged from <1kWh to 5 kWh daily.
Very happy with my investment.

regen

  • Joined Jan 2013
Re: Solar PV Production
« Reply #5 on: January 17, 2013, 10:15:47 am »
2011 -3665 kwh  and 2012 3472kwh from 3.96kw array in carmarthenshire

Regen

Big Light

  • Joined Aug 2011
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Re: Solar PV Production
« Reply #6 on: February 28, 2013, 07:38:06 pm »
192 for feb quite happy with that

Big Light

  • Joined Aug 2011
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Re: Solar PV Production
« Reply #7 on: March 31, 2013, 10:29:44 pm »
only 212 for march but panels under snow for a  number of days

Dan

  • The Accidental Smallholder
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Re: Solar PV Production
« Reply #8 on: April 01, 2013, 09:05:24 am »
We're on the east coast of Scotland with a 4kW array.

For January-March we generated 479, down from 644 in the same period in 2012.  :-\

Big Light

  • Joined Aug 2011
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Re: Solar PV Production
« Reply #9 on: April 02, 2013, 05:02:00 pm »
Thanks Dan we are 458.3 for the same period which was a bit down on what we expected but similar to yours.
Interesting to see we are not the only ones.
What are you peaking at per day in the summer?
The best day so far has been just over 16kWh for a day at the end of Feb

Small Farmer

  • Joined Jan 2012
  • Bedfordshire
Re: Solar PV Production
« Reply #10 on: April 14, 2013, 12:02:10 am »
We're in the south-east and generated 389kWh in Q1 against 583 last year on a split 4kW array facing south and east.  And 3349kWh for 2012
Being certain just means you haven't got all the facts

Big Light

  • Joined Aug 2011
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Re: Solar PV Production
« Reply #11 on: April 20, 2013, 07:30:26 am »
A 24.9 yesterday bring on the Summer! ;D

Backinwellies

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Re: Solar PV Production
« Reply #12 on: April 20, 2013, 08:36:11 am »
jealous ... didn't get smallholding till after payback had been cut!!!!    Still a non south faceing slope in Wales not best place for solar I guess    :raining:  :roflanim:
Linda

Don't wrestle with pigs, they will love it and you will just get all muddy.

Let go of who you are and become who you are meant to be.

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Big Light

  • Joined Aug 2011
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Re: Solar PV Production
« Reply #13 on: April 20, 2013, 11:35:41 am »
We got ours after the cut but cost less  to buy initially. So i guess it kinda balances out. The link above in this thread for solar power predictor will give you a reasonable idea what you would get

Dan

  • The Accidental Smallholder
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Re: Solar PV Production
« Reply #14 on: April 20, 2013, 08:12:56 pm »
What are you peaking at per day in the summer?
The best day so far has been just over 16kWh for a day at the end of Feb

Don't know, I'll need to check the next decent day - tomorrow hopefully.  :sunshine: :D

 

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