Thanks, that helps. I'm slowly getting an understanding
Hello
I'm dealing with similar issues on the off-grid system I'm installing.
The shortest distance from the clearing where I might be able to mount PV's to an enclosure (small barn) is 150'.
I'm not eager to have both my (8) SOK 206 amp batteries and my 48 volt 12k Sigeneer AIO inverter/charger outside just to gain proximity to the panels, the installation will be about 150 yards from my house, and there are a lot of trees obscuring visibility. The barn is still 100 yards or so from my house, but that will be an AC run.
I was originally going to run my batteries in 2S4P to obtain the 48v required, now I'm facing how to safely and economically run my DC wiring from PV's to AIO and batteries.
Now, I'm wondering what would be the optimal configuration for the DC wiring? I'm likely to add panels as I can obtain them.
Here's the Sigeneer spec's:
PECIFICATIONS
Inverter Output Specifications:
•Continuous Output Power: 12000 Watts
•Surge Rating: 36000 Watts (5 Seconds)
•Output Voltage: 104/208V, 110/220V, 115/230V, 120/240Vac (resetable on LCD)
•Nominal Efficiency: 91% (Peak)
•Line Mode Efficiency: >95%
•Output Frequency: 50Hz +/- 0.3Hz / 60Hz +/- 0.3Hz
•Typical Transfer Time: 10ms (Max)
•THD: <10%
DC Input Specifications:
• Nominal Input Voltage: 48.0Vdc
• Low Battery Cutoff: 40.0-48Vdc
• Low Battery Alarm: 42-50Vdc
•DC to AC Transfer in SBU or Solar first mode: 44-51.2V
•AC to DC Transfer in SBU or Solar first mode: 48-58V
• High Voltage Cutoff: AGM:60V/FLD:62V/ USE mode: C.V+4V
• High Voltage Recovery: 58V
——————
DC Input Specifications(Lithium version):
• Low Battery Cutoff: 5%-30% SOC
• Low Battery Alarm: Low Battery Cutoff SOC+5%
•DC to AC Transfer in SBU or Solar first mode: 20%-50% SOC
•AC to DC Transfer in SBU or Solar first mode: 60%-100% SOC
• High Voltage Cutoff: AGM:60V/FLD:62V/ USE mode: C.V+4V
• High Voltage Recovery: 58V
————
• Idle Consumption: 180 Watts
• Power Saver Mode Idle Consumption:40 Watts
Charger Specifications:
• Ac Input Voltage For Charger: Nominal 240Vac (154-260Vac)
• Output DC voltage: 48-58.4V Depends on battery Type
• AC Charger Rate: 100Amp
• Solar Charger Rate: 120Amp
• Max Combined Charge Rate: 180Amp
• Over Charge Protection Shutdown: 62.4V
• Adjustable charge current: 0-100%
• Four Stage Smart Charger
I can get panel spec's, just don't have them at my fingertips.
Any ideas on DC wiring?