As-built (2007) system, proposed upgrade, and physical site layout — reconstructed from July 2026 site photos and the upgrade shopping-list workbook
This diagram shows how power currently flows through your cabin's off-grid system: sunlight → panels → charge controller → battery bank → inverter → house panel → outlets and lights. Click any box for details.
This is the proposed replacement system sized in the shopping-list workbook: a yard-mounted panel array, an all-in-one hybrid inverter/charger (built-in MPPT — no separate charge controller box needed), and a LiFePO4 battery bank, feeding the existing house panel. Click any box for details.
A rough (not-to-scale) schematic of where the new equipment sits relative to the house: panels out in the yard, batteries/inverter tucked below the house in the crawlspace, and the main panel inside. Click a zone for what's realistically DIY vs. what to hire out.