5KW Solar System for Workshop: Complete Sizing Guide A 5kw solar system for workshop installs about 5,000 watts of PV capacity and can reliably supply typical small-to-medium workshop loads — power tools, LED lights, battery chargers, and intermittent compressors. This guide shows how to translate tool wattages and hours into daily kWh needs, pick panels and inverters, decide whether to add batteries, estimate costs and payback, and handle DIY installation and permits. Read on to learn exact sizing steps, a worked example for a 500 ft² workshop, component ranges, and a one-page checklist you can take to the site. TL;DR: - A 5 kW array typically produces ~15–25 kWh/day depending on 3–5 peak sun hours; size panels by dividing desired daily kWh by site peak-sun-hours. - For backup or off-grid use, plan 6–12 kWh usable battery storage for basic workshop continuity, sized to inverter output; consider a hybrid inverter for staged battery expansion. - Start with a load inventory (watts × hour...