A small off-grid system for a shed or cabin, built around eight 100 W panels split into two 400 W arrays with one charge controller each, and three 12 V, 100 Ah lithium batteries.
Parts
- 4 x Zamp Solar Obsidian 200W solar panel kit (2 x 100W)
- 2 x Victron SmartSolar MPPT 100/30 charge controller
- 3 x Battle Born 100Ah 12V LiFePO4 battery
- 1 x Xantrex PROwatt SW1000 true sine wave inverter
- 1 x Victron SmartShunt 500A/50mV battery monitor
- 1 x Blue Sea 5191 MRBF terminal fuse block, 30 to 300A
- 1 x Blue Sea 5025 ST Blade fuse block, 6 circuit
What it covers
Panel side: each array is four panels wired two in series, two strings in parallel. Each array stays under its controller’s 100 V limit and 440 W rating at 12 V. AC side: the Xantrex inverter is sized for light loads. Larger loads need a bigger inverter, which this list does not include.
The parts list is checked against manufacturer ratings. It is not an engineered design, a permitted installation or a promise of runtime. Cable, mounts and the fuses that go in the fuse blocks are not in this list.