How would u add more watt

Thom
Thom Solar Expert Posts: 196 ✭✭✭
in Off Grid Solar & Battery Systems #1
i want to add more watts to my system listed below. I think 30a is the most the  Rogue mpt-3024 will handle . Could I add another panel ? What would you suggest ? I have a kid cc I could use if  it would work better with more watts. 

Thanks Thom
Off grid since 1984. 430w of panel, 300w suresine , 4 gc batteries 12v system, Rogue mpt3024 charge controller , air breeze windmill, Mikita 2400w generator . Added 2@ 100w panel with a midnight brat 
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  • BB.
    BB. Super Moderators, Administrators Posts: 33,613 admin
    #2
    The typical (cost effective) maximum array I would suggest is:
    • 30 amps * 14.5 volts charging * 1/0.77 panel+controller deratings = 565 Watt array "cost effective" maximum
    You could add another ~140 Watt panel and still just be under the typical maximum array power on an average day (if the array can produce more power, then the MPPT controller will simply not output any more than 30 amps--safely).

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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  • Thom
    Thom Solar Expert Posts: 196 ✭✭✭
    #3
    I have 2 Webel W2100 panels 215w isc 5.32 voc 54.3 iMac 4.9 vmax 43.9 . What am I looking match for a new panel ?

    thanks Thom  
    Off grid since 1984. 430w of panel, 300w suresine , 4 gc batteries 12v system, Rogue mpt3024 charge controller , air breeze windmill, Mikita 2400w generator . Added 2@ 100w panel with a midnight brat 
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  • littleharbor2
    littleharbor2 Solar Expert Posts: 2,102 ✭✭✭✭✭
    edited August 2016 #4
     It might be pretty difficult finding another 88 cell module to match up to yours. Panels have gotten pretty inexpensive these days. You might consider getting all new panels.
      As to your controller with it's 60 Voc. limit you either need to parallel wire most panels these days, (you could series wire 12 volt modules), for your 12 volt bank or replace the controller with the Kid that will accept higher input voltage.

    2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric,  460 Ah. 24 volt LiFePo4 battery bank. Plenty of Baja Sea of Cortez sunshine.

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