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Posted by Brent Geery on December 19, 2007, 5:04 pm
Please log in for more thread options wrote:
>Brent Geery brought forth on stone tablets:
>
>> I'm adding 1.5kW of Solar panels to my trailer. They will be on a
>> "weight balanced" tilting rack, so that I could add a satellite dish
>> actuator and $40 Redrock tracker to allow single axis tracking.
>> However, it would be single axis tracking of elevation; not the more
>> typical single axis tracking of the East/West (azimuth) direction.
>>
>> I don't know of any program that would allow me to calculate the
>> advantage of single-axis tracking on this axis, but I'm assuming the
>> benefit would be more in the summer, and less in the winter, as the
>> summer sun travels higher in the sky. I have a small 1-2 week window
>> in the summer peak where I will probably need a backup generator, and
>> this tracking may eliminate that dependence.
>>
>> Can someone help me determine/calculate the effect of single axis
>> tracking of North/South (elevation)? TIA.
>
>why not tilt the pivot to (90 degrees minus your lattitude)? Then your
>single actuator will move the panels to track the path the sun takes
>thru the sky. You'd have to adjust the tilt angle a few times a year to
>account for the +/- 23 degrees of solar altitude changes thru the seasons.
I don't really have a choice in mounting arraignment. It's a miracle
I was able to mount 1500 watts of panels occupying only about a 6'x6'
footprint on the front roof and another 6'x6' section covering the
forward front face of the trailer.
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