Posted by Gymy Bob on January 20, 2005, 7:17 pm
What is the general best angle to point your solar panels horizontally for
best power output daily? This is with no tracking and a fixed position.
I figure about where the sun is at 2:00 PM but this is only in the winter.
Does this vary from season to season.
Are there charts or calculations posted somewhere online?
How much difference will tracking make?
What is a good tracking system source?
Are there cheaper ways to set up tracking systems?
TIA
Posted by George Ghio on January 21, 2005, 1:45 am
> What is the general best angle to point your solar panels horizontally for
> best power output daily? This is with no tracking and a fixed position.
Pointing at the sun at noon.
>
> I figure about where the sun is at 2:00 PM but this is only in the winter.
> Does this vary from season to season.
Yes it varies with the seasons and the angle will depend on you latitude.
>
> Are there charts or calculations posted somewhere online?
Have a look at www.susdesign.com
>
> How much difference will tracking make?
Depends on the tracker. 0 to 30 or 40% when the tracker works. Trackers
also increase the number of things that can go wrong. i.e. moving parts.
I spend a lot of time with these problems. Because of this I am not keen
on their use.
>
> What is a good tracking system source?
>
> Are there cheaper ways to set up tracking systems?
Suggest you talk to Duane Johnson. One of the few here who would know.
>
> TIA
>
Posted by Bernd Felsche on January 21, 2005, 5:44 am
>> What is the general best angle to point your solar panels horizontally for
>> best power output daily? This is with no tracking and a fixed position.
>Pointing at the sun at noon.
>> I figure about where the sun is at 2:00 PM but this is only in the winter.
>> Does this vary from season to season.
>Yes it varies with the seasons and the angle will depend on you latitude.
And altitude.
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Posted by Miguel Gimenez on January 21, 2005, 6:02 am
Bernd Felsche wrote:
>
>
>
>>>What is the general best angle to point your solar panels horizontally for
>>>best power output daily? This is with no tracking and a fixed position.
>
>
>>Pointing at the sun at noon.
>
>
>>>I figure about where the sun is at 2:00 PM but this is only in the winter.
>>>Does this vary from season to season.
>
>
>>Yes it varies with the seasons and the angle will depend on you latitude.
>
>
> And altitude.
The variation of angle with altitude is about 0.004 degrees from sea
level to ten kilometers over the poles, I think he can neglect this.
Best regards
Miguel Gimenez
Posted by nicksanspam on January 21, 2005, 6:50 am
>> What is the general best angle to point your solar panels horizontally for
>> best power output daily? This is with no tracking and a fixed position.
>Pointing at the sun at noon.
Wrong again. Pointing slightly below noon elevation makes more daily energy,
with more ground reflection and a higher average incidence angle cosine.
Nick
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> best power output daily? This is with no tracking and a fixed position.