Step 1 — Work out what you actually need to run
Sizing a generator starts with a load list. For a home, that usually means the fridge, lights, fans, internet, and any medical equipment — typically 4 to 8 kW of running load with short-duration spikes when an air-conditioner or well pump starts. For a workshop or commercial site, we add motor starting current (LRA), HVAC inrush, and the duty-cycle of welders, compressors, or lifts. We never quote off a name-plate alone — we ask for the actual appliances or a single-line diagram and build the load schedule from there.

