If I use #8 AWG for the 3 DC stings over the greater distance from the ground mounted Array to the inverer mounted at the house I get a voltage drop of 1.7V or .48% relative power loss
If I use #1 AWG for the AC side over the greater distance from the inverter mounted at the Array I get a voltage drop of 1.2V or .49% relative power loss
Considering only the Voltage drop, is one alternative better than the other?
Cost is just about the same either way
My approved line drawing has the inverter mounted outside with the AC extending 150ft in conduit in a ditch But my township will accept the last minute change. I recently liked the idea of mounting the inverter in the home since the SMA 7700 has a secure AC power supply that can be used to get power during the day in case of a grid power outage. But that just means extending a #10 AWG wire
Thanks, Leni
If I use #1 AWG for the AC side over the greater distance from the inverter mounted at the Array I get a voltage drop of 1.2V or .49% relative power loss
Considering only the Voltage drop, is one alternative better than the other?
Cost is just about the same either way
My approved line drawing has the inverter mounted outside with the AC extending 150ft in conduit in a ditch But my township will accept the last minute change. I recently liked the idea of mounting the inverter in the home since the SMA 7700 has a secure AC power supply that can be used to get power during the day in case of a grid power outage. But that just means extending a #10 AWG wire
Thanks, Leni
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