RV park & campground service sizing from site mix, typical load & connected appliances with coincidence factors
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Park Configuration
sites
Each 30 A pedestal is rated 3,600 VA (120 V × 30 A).
sites
Each 50 A pedestal is rated 12,000 VA (240 V × 50 A).
%
Share of pedestal capacity one site usually draws at the park peak. Field surveys typically run 30–50%.
Coincidence between sites at the same instant. Auto uses the planning table below for the total site count.
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Headroom on top of the diversified peak to reach the recommended service or transformer.
Connected Appliance Loads (per site type)
Watts ≈ VA for sizing. Enter what one site of each type can draw. Connected load is checked against the pedestal rating.
30 A sites · 120 V
pedestal 3,600 VA
connected —
50 A sites · 120/240 V
pedestal 12,000 VA
connected —
Typical draws: 30 A site — 13.5k BTU AC ~1,350 W, water heater 1,500 W, converter ~360 W. 50 A site — dual AC / larger heat pump ~2,900 W, 2-el water heater 4,500 W, converter ~720 W. Adjust to your units.