How do you prepare an electrical load schedule for a commercial building?

An electrical load schedule lists all loads connected to each panel with their ratings, circuit numbers, and protective device sizes. Start by identifying all equipment from architectural/MEP drawings with nameplate data. Group loads by panel location and function (lighting, power, HVAC). Apply demand factors per NEC Article 220 for specific load types. Include spare capacity (typically 20-25%) for future expansion. The schedule becomes the basis for panel sizing and one-line diagram development.