Use Kopperfield's free electrical load calculator and create a one-page PDF to help finish residential inspections and close customers faster.

Professional electrical load calculator for residential service sizing. Calculate total house load, service size & panel requirements per NEC 220.82 standards.

Dec 11, 2025 · Household electrical load is the amount of electricity used by a residence. You must know the load before you can safely upgrade a home’s electrical panel or add major …

May 3, 2024 · Residential Electrical Load Calculator, Online and Interactive provides accurate main service panel load calculations.

Sep 23, 2025 · To determine the feasibility of adding a new large appliance to your electrical system without upgrading the panel, you need to calculate the load your current system draws. …

This professional residential load calculator determines electrical service requirements, panel sizing, and load calculations for single-family dwellings per NEC Article 220 standards.

HVAC Loads Heating Load (VA): Cooling Load (VA): Are heating and cooling non-coincident?:

Use our free online electric load calculator to estimate total power usage for your home or solar system. Fast, easy, and accurate.

Generate a load calculation PDF in seconds to streamline inspection approvals. Easily revisit, update, and share past calculations. Try it for free!

The load calculator is divided into three main sections which enable you to enter the necessary information about the home project and the proposed electrical equipment that will be installed.