Service Load Calculator — NEC 2023

Calculation dwelling type & method

Dwelling type

Method

Floor area (ft²)3 VA/ft² — 220.41

Small-appliance circuits1500 VA ea — min 2 — 220.52(A)

Laundry circuits1500 VA ea — 220.52(B)

Range / cooking nameplate (VA)Combine oven + cooktop (Note 4)

Range quantity

Clothes dryer nameplate (VA)0 = none. Std method uses ≥5000 — 220.54

Air conditioning (VA)Larger of heat vs A/C used — 220.60

Electric heating total (VA)Fixed space heating @ 100% — 220.51

Fastened-in-place appliances Nameplate VA × qty. Excludes range, dryer, heat, A/C, EVSE. Std method: 75% when 4+ — 220.53

EV charger (EVSE) — larger of 7200 VA or nameplate — 220.57

Largest motor (VA)+25% — 220.50(A). Often the A/C compressor

Business name

License #

Phone

Email

Business address

Prepared by

Date

Client / owner

Job / permit #

Project address

Notes for report