Turn a load schedule into a kVA number, the next standard rental size up, and a fuel estimate. A planning aid for the power conversation, not a substitute for the engineer of record.
Sum of everything on the load schedule: audio, lighting, video, rigging motors, catering, HVAC.
Basis: standard genset rating convention. 0.8 is the common default for mixed production loads.
Basis: standard load-calculation practice. Not everything draws at once; 0.8 is a MODELED default.
MODELED (rule of thumb): 20 percent covers motor inrush and day-of additions.
From the XPMS compliance engine: the same rulebase that runs XMCE checks in LEG3ND. What is XPMS? Explore LEG3ND
Generators are rated in kVA at a stated power factor, usually 0.8. Your load schedule is in kW, so the conversion runs through two factors: diversity (not everything draws at once, so running demand is a fraction of connected load) and power factor (real power over apparent power). Add headroom for motor inrush and the gear that shows up on the truck unannounced, and you have the kVA the rental order needs.
Oversizing has a cost beyond the rental line: a diesel set loafing under about 30 percent load wet stacks, fouling injectors and stacks over a multi-day run. Power vendors solve it with paralleled smaller units or load banks. Bring the demand number, the show schedule, and the redundancy requirement to the vendor and the engineer of record; they design from there.
Fuel checks, generator rounds, and site-ops tasks live in the field app your crew already carries.