Plan your off-grid solar system. Part by part.
Pick components across brands and watch the compatibility checks run live - with every formula shown, so you can verify the work.
142 components across 43 brands - 12 compatibility checks - free, no account
Pick your parts
Panels, charge controller, battery bank, inverter - or an all-in-one that covers two slots. Cross-brand catalog with datasheet-sourced specs.
See the math
A dozen compatibility checks run live: cold-weather string voltage, BMS limits, charge rates, comms matching. Every verdict expands to the worked formula.
Share the link
Save to get a permalink anyone can view and clone - no account. Wire gauge and fuse guidance included for every segment.
Start from a proven build
See allBudget cabin 12V starter
Weekend cabin basics: lights, fridge, phone charging, and a 2000W inverter for small appliances. Proven budget parts, all from Renogy and Rich Solar.
- 4x Rich Solar MEGA 200 200W 12V Monocrystalline Solar Panel
- Renogy Rover 60A
- 2x Renogy Core Mini 12V 100Ah
- Renogy 2000W 12V Pure Sine Wave Inverter (RNG-INVT-2000-12V-P2)
Mid-size ranch 48V (EG4 server rack)
The workhorse setup the DIY community actually buys in 2026: an EG4 6000XP all-in-one, two LifePower4 rack batteries, and eight 410W panels. Split-phase 120/240V for a well pump.
- 8x Canadian Solar HiKu6 CS6R-410MS 410W Mono PERC
- 2x EG4 LifePower4 V2 48V 100Ah
- EG4 6000XP
Premium Victron 48V homestead
Blue-box build: MultiPlus-II 48/5000, SmartSolar 250/100, three Pylontech US5000 racks, and a 4.4kW array of 550W panels. Closed-loop comms and room to grow.
- 8x Canadian Solar HiKu6 CS6W-550MS 550W Mono PERC
- Victron Energy SmartSolar MPPT 250/100-Tr VE.Can
- 3x Pylontech US5000 48V 100Ah
- Victron Energy MultiPlus-II 48/5000/70-95 120V
Honest by design
The verdict is never a hand-wavy "fully compatible" - it is "no issues found by N checks", with the check list and the math one click away. Specs not yet hand-verified against the manufacturer datasheet are badged, not hidden.