Lyoid Fussell's

Generator Set Space Calculator

Power Plant Site Footprint & Unit Count Estimator

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Unit Dimensions & Safety Clearances

ft
ft
ft / end
Added to both ends of the unit along its length.
ft / side
Added to both sides of the unit along its width.

Power & Redundancy Requirements

MW
MW
units
N+1 = enter 1. N+2 = enter 2. Add to minimum required count.
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Results Summary

Min Units Required
units (rounded up)
Total Units (N+)
units including spares
Per-Unit Envelope
sq ft / unit
Total Site Footprint
sq ft
Total Site Area
acres
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Unit Envelope Diagram

Enter dimensions above to see diagram
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Calculation Breakdown

Parameter Value Notes
Unit footprint Length × Width (bare unit)
Clearance envelope (L + 2×end) × (W + 2×side)
Envelope dimensions Total length × total width per unit
Min units (MW math) Total MW ÷ MW per unit, rounded up (ceiling)
N+ spares added User-defined backup / redundancy units
Total units Min required + N+ spares
Total installed MW capacity Total units × MW per unit
Total square footage Total units × unit envelope sq ft
Total acres Total sq ft ÷ 43,560