Solar Output
Submitted: Sunday, May 18, 2014 at 13:57
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evaredy
I would like to know how many amps a particular amount of solar panels put out per hour.
I realize there are many variables but would like a rough indication.
Ok, so this is my setup.
Dmax has a 120 ah in
the tub, along with a Redarc BCDC 1240 (40amp), on the canopy roof, I have a Redarc 150W solar panel. This is wired into the BCDC and also has an Anderson plug so I can plug it into the camper when needed.
The camper has a 120 ah battery along with a Redarc BMS unit, the camper has two 65W solar panels fitted to the roof that tilt. I have had an extra Anderson plug fitted to the draw bar and wired into the BMS unit.
I also have a portable 120W solar panel, I have had Anderson plugs fitted to it so I can bypass the regulator when needed.
So if I wanted to charge the camper battery, I already have the 2 x 65W panels, I can also plug in my 120W portable via an Anderson plug that is wired into the BMS unit. I can also plug in the 150W panel that is the on canopy via the same Anderson plug using a double adapter.
The cables for the portable and 150W are 6 b&s.
So this would give me a total of 400W of solar, roughly how many amps would this give me per hour on a regular sunny day?
Reply By: The Bantam - Sunday, May 18, 2014 at 15:33
Sunday, May 18, 2014 at 15:33
As you mentioned...how long is a piece of string.
The output of solar pannels varies wildly depending on the time of year and the prevailing solar radiation in that location.
If you are in allice springs in summer with a clear day...your pannels are probably capable of delivering their rated output
If you are in tasmania in the depths of winter..even on a clear day you may only get 20% of the rated output and then only an hour either side of solar mid day.
in the higher lattitudes...kimberly,
Darwin Cairns you may get 10 hours hell may be 12 of good usefull electricity making sunshine on a clear day in summer...back to Tassy in winter and that 20% mignt last 2 hours and youy may be lucky enough to be getting some usefull of charge out to 6 hours.
A wise man will be generous in his design of a solar system.
If you are realy interested in getting your head arround this subjact....goo off and buy one of Ray Rivers' books on solar. they are easy to read and give you some realy good information like solar radiation maps.
you will bless the day.
cheers
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Follow Up By: MEMBER - Darian, SA - Sunday, May 18, 2014 at 15:36
Sunday, May 18, 2014 at 15:36
Collyn Rivers ?
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Follow Up By: Bob Y. - Qld - Monday, May 19, 2014 at 13:45
Monday, May 19, 2014 at 13:45
"Ray Rivers".......sounds like name of a blues or jazz singer :-)
Bob
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