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Optimum (fixed) bearing & tilt angles?

 
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Vortex



Joined: 16 May 2006
Posts: 6097

PostPosted: Sat Jul 12, 2008 10:52 pm    Post subject: Optimum (fixed) bearing & tilt angles? Reply with quote

I am about to set up a small panel on a post to charge an electric fencer.

I assume I aim it South, if possible.

Is there an optimum tilt angle too?
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adam2
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Joined: 02 Jul 2007
Posts: 6699
Location: North Somerset

PostPosted: Sun Jul 13, 2008 9:52 am    Post subject: Reply with quote

South is best as you point out.
The opimum tilt angle depends on what you wish to achieve, there are three possibilities
1) a fixed angle to maximise anuall production, this would be typicly about 30 degrees from the horizontal in most of the UK.
2) A fixed angle to maximise winter production, when supplies are most limited, this would be near vertical to make to the most of low winter sun, perhaps 20 degrees from the vertical. (a south facing wall is often better than roof mounting for winter use)
3) an angle altered according to the season, near vertical in winter and near horizontal in summer.

Option 2 may be the best for an electric fence.
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contadino



Joined: 05 Apr 2007
Posts: 1268
Location: Puglia, Italia

PostPosted: Mon Jul 14, 2008 2:03 pm    Post subject: Reply with quote

I posted up a link to a free online tool on the thread below that'll calculate you optimum tilt and aspect for you.

http://www.powerswitch.org.uk/forum/viewtopic.php?t=8395&highlight=
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Vortex



Joined: 16 May 2006
Posts: 6097

PostPosted: Mon Jul 14, 2008 2:08 pm    Post subject: Reply with quote

contadino wrote:
I posted up a link to a free online tool on the thread below that'll calculate you optimum tilt and aspect for you.

http://www.powerswitch.org.uk/forum/viewtopic.php?t=8395&highlight=


Thanks! I thought someone had done that ... but couldn't remember on which forum!
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