Help with wiring between panels, inverter, and CB panel

Buckles
Buckles Registered Users Posts: 2 ✭
in Solar Beginners Corner #1
My indecision and my add is killing me.
Im installing the 12 panels on a roof.  The roof is 104 feet from the circuit breaker panel.
I cant decide where to put the inverter; close to the panels or close to the circuit breaker panel.
 
Panels Q-cell 340 watt
Inverter   SolarEdge SE3000A-US-U

Any help is appreciated
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  • Buckles
    Buckles Registered Users Posts: 2 ✭
    #2

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  • BB.
    BB. Super Moderators, Administrators Posts: 33,623 admin
    #3
    Can you tell us a bit more about the solar panel input requirements for the GT inverter? This model?

    https://www.solarflexion.com/product-p/se3000a-us-u.htm

    The 240 VAC version says that the nominal solar panel input is 350 VDC, and 500 VDC maximum...

    How did you divide up the 12 panels? I don't see an easy way (6 series x 2 parallel, vs 12 series--Not sure that either meet the input requirements--I did not plow through the GT inverter manual).

    From one point of view, 350 VDC is higher voltage than 240 VAC--So, less voltage drop, less current for the DC power run...

    Safety wise, 240 VAC is a bit "safer" than DC. Do you need a DC shutdown for the array for your building/NEC rules?

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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