Was up in the mountains last week finalizing my off-grid system taking into account some of the suggestions I've received here. On sunny days my MPPT controller actually got into float mode - that's a first! Switching over to 24 V was relatively painless and the only thing I had to replace besides the inverter were the LED bulbs and the water pump for the shower. I also had to buy another battery charger and wire two in series to charge the reconfigured battery bank.
Everything worked flawlessly the 8 days we were up there and the only times I had to run the generator were three days that were mostly cloudy and rainy. We ran two fans, TV, my CPAP machine, lights, pump (for showers) and 3.1 Cu Ft fridge.
This is what I wound up with:
8 - Renogy 100 watt panels
6 - Universal 100 AH batteries wired series-parallel for 24V @ 300 AH
2 - IOTA DLS45 battery chargers
1 - 60 A MPPT charge controller
1 - Samlex 1500 W 24V pure sine wave inverter
Panels are hooked in series parallel about 20 feet from cabin with 10 ga twisted wire ran underground in PVC conduit.
Everything worked flawlessly the 8 days we were up there and the only times I had to run the generator were three days that were mostly cloudy and rainy. We ran two fans, TV, my CPAP machine, lights, pump (for showers) and 3.1 Cu Ft fridge.
This is what I wound up with:
8 - Renogy 100 watt panels
6 - Universal 100 AH batteries wired series-parallel for 24V @ 300 AH
2 - IOTA DLS45 battery chargers
1 - 60 A MPPT charge controller
1 - Samlex 1500 W 24V pure sine wave inverter
Panels are hooked in series parallel about 20 feet from cabin with 10 ga twisted wire ran underground in PVC conduit.
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