Demand Factors

NEC 220.82 Optional Method: Full Worked Example for a 2,000 SF House with EV Charger

Full NEC 220.82 optional method walkthrough for a 2,000 SF house with heat pump and EV charger. Compare to standard method and size the 200A service.

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June 12, 2026

Load Balancing a 200A Panel: Leg Assignment, Demand Factors, and Remaining Capacity

Load balance a 200A panel: measure leg current, reassign single-pole breakers, and check NEC 220.82 demand-factor math for remaining capacity.

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April 29, 2026

Calculating Electrical Load for New Circuits: Continuous vs Non-Continuous Loads and NEC Rules

How to calculate electrical load for new branch circuits using NEC Article 220. Covers the 125% continuous load rule, VA per square foot tables, demand factors, and worked examples for EV charger installations and commercial lighting circuits.

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April 8, 2026