Shared build
Home Backup Solar Build
System24VDaily3.5 kWhPeak2200WSun5h/dayAutonomy2d
Solar Panels
ECO-WORTHY Bifacial 100 Watt 12 Volt Solar Panel Monocrystalline Rigid High-Efficiency PV Module Power Char × 8
100W each800W totalmonoVoc 25.2V
Charge Controller
BougeRV MPPT Solar Charge Controller 40A, w/ Low-Temp Cut-Off, APP Control, Backlit LCD, 40 Amp Solar Pa
MPPT40AMax PV 150V12V/24V/36V/48V
Battery Bank
AIMS Power AIMs AGM 6V 225Ah Deep Cycle Battery Heavy Duty × 4
LiFePO424V450Ah10.3 kWh usable
Inverter
GARVEE 3000W Pure Sine Wave Inverter With USB Port And Remote Controller For Home RV Truck 24V To 120V
3000W continuous6000W peak24V input
Parts total$1,799.82
Prices are estimates — check the retailer for current pricing before purchasing.
System calculations
Solar array
800W
8 × 100W
Usable battery
10.3 kWh
450Ah @ 24V
Est. daily harvest
3.0 kWh
5h sun · 75% eff
Controller
MPPT 40A
Max charge current
Inverter output
3000W
Continuous AC
Days of autonomy
2.9 days
10.3 kWh / 3.5 kWh/day
Runtime at peak load
4.2 hours
2200W peak draw · 90% inverter eff
Solar recharge time
17 hours
Full usable battery from panels
Controller-limited charge
17 hours
~25.0A effective charge
Inverter headroom
800W
Above selected peak load
Estimates assume 5h peak sun and 75% real-world harvest efficiency.
✅
No compatibility issues
All parts checked — voltages, chemistry, and current ratings look good.
🔵 Wire & fuse guide
Battery → Inverter2/0 AWG ↗160A ANL ↗+
Wire sizes follow NEC 310.15 ampacity. Always size for your run length and ambient temperature.
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