solar panel controller
 

solar panel controller

Started by pete36330, June 22, 2010, 08:47:46 PM

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pete36330

I've got 6 siemens sr100 solar panels that I'm planning on putting on the roof of my mci9,,any input ,,advice on what mppt charger /controller to use..I have a 24v battery bank..thanks

Tim Strommen

Outback

Put your panels in series, make sure you use bypass diodes between panels...

-T
Fremont, CA
1984 Gillig Phantom 40/102
DD 6V92TA (MUI, 275HP) - Allison HT740
Conversion Progress: 10% (9-years invested, 30 to go :))

Jerry32

I have a blue sky controller on six 80 watt panels and seems towork well. I see the voltage go up to about28.9 volts then drop back to float at 26.5  Jerry
1988 MCI 102A3 8V92TA 740

Bill B /bus

Assuming 12V, nominal, panels?
Wire in series. Less current flow that way. Then use an MPPT controller from Outback, Blue Sky etc. I am familiar with the Outback MX60. Changes the voltage to as selected by user. The higher the voltage the better the MPPT controller works, efficiency.
I have 4 panels,180watts, at 24V nominal in series/parallel for controller input of 48V, as high as 65.4V.  Maximum current I was noticed on the controller was 25.5 amps. That is close to theoretical maximum.
Make sure you get a remote display as you want the controller as close as possible to the battery bank.
That's a quick and dirty expose of solar controllers and panels.
Goggle Jack Mayer as he has a great website with a clear presentation of solar power and its pitfalls and advantages.
If i knew to import web addresses I'd provide the link.
Bill
Bill & Lynn
MCI102A3, Series 50 w/HT740