BlueMarblePA
Solar Enthusiast
I posted this in the beginners section but got no responses.
I am building this out right now and want to be sure I did not skip something
1120 watts of used panels in 2S2P (72v/16amps) to a solar disconnect then to a victron blue solar 100/30 for a 24v battery system
(I know that 1120/24=46 amps, but I have used panels and expect poor sunshine on my shed as it only gets sun from 9am to 1:30pm)
Mppt goes to the red and black bus bar.
From 2x12v batteries wired in series, I have the black negative going to the victron smart shunt which then goes back to the black bus bar.
From the positive side of the battery bank, I have a blue seas 100amp terminal block fuse going to a red switch to shut down the circuit which then goes to the red bus bar.
From the red and black bus bar, I then go into the Cotek 24v 1500 watt sine wave inverter. The chassis ground will go to 8 foot copper rod next to shed (two of them separated by eight feet and connected with 6 gauge bare copper)
Solar panel racks will be connected to same ground with weeb connectors and to the same ground rod that the inverter goes to
Cotek is 1500W inverter with a 91% efficiency/24V = 68.7 Amps. However, you want to add a 25% insurance factor, so 68.7*1.25 = 85 (Let's round to 100 Amps)
Using this calculator http://circuitwizard.bluesea.com/
24V, 75 Amps, 10 feet round trip from battery to inverter. It says I can use 6 AWG. I chose to use 4AWG.
I am building this out right now and want to be sure I did not skip something
1120 watts of used panels in 2S2P (72v/16amps) to a solar disconnect then to a victron blue solar 100/30 for a 24v battery system
(I know that 1120/24=46 amps, but I have used panels and expect poor sunshine on my shed as it only gets sun from 9am to 1:30pm)
Mppt goes to the red and black bus bar.
From 2x12v batteries wired in series, I have the black negative going to the victron smart shunt which then goes back to the black bus bar.
From the positive side of the battery bank, I have a blue seas 100amp terminal block fuse going to a red switch to shut down the circuit which then goes to the red bus bar.
From the red and black bus bar, I then go into the Cotek 24v 1500 watt sine wave inverter. The chassis ground will go to 8 foot copper rod next to shed (two of them separated by eight feet and connected with 6 gauge bare copper)
Solar panel racks will be connected to same ground with weeb connectors and to the same ground rod that the inverter goes to
Cotek is 1500W inverter with a 91% efficiency/24V = 68.7 Amps. However, you want to add a 25% insurance factor, so 68.7*1.25 = 85 (Let's round to 100 Amps)
Using this calculator http://circuitwizard.bluesea.com/
24V, 75 Amps, 10 feet round trip from battery to inverter. It says I can use 6 AWG. I chose to use 4AWG.
