Electrify without guessing
Short, sourced answers to the questions homeowners ask before adding a charger, heat pump or induction range.
Can a 100 amp panel handle an EV charger?
How to check whether a 100 amp service can take a Level 2 EV charger, with a worked 220.83 example, charger sizes that usually fit, and what to do if it calculates over.
Can a 200 amp panel handle a heat pump and an EV charger?
What a whole-home heat pump adds to a 200 amp service load calculation, how backup heat strips change the picture, and how to add a heat pump, EV charger and induction range together.
Electrical load calculation for an EV charger: a worked example
Step-by-step home electrical load calculation for adding a Level 2 EV charger, worked in the 2020/2023 and 2026 NEC existing-dwelling methods and the 12-month utility data method.
Do you need a panel upgrade for an induction range?
What circuit and panel capacity an induction range needs, how ranges are counted in an existing-home load calculation, and options for 100 amp homes.
What is EV load management?
Plain-language guide to EV load management and energy management systems (NEC 625.42 and 750.30), how they avoid a service upgrade, and what to ask before buying.
NEC 220.83 calculator and calculation explained
Step-by-step explanation of the NEC 220.83 existing dwelling load calculation (120.83 in NEC 2026), the (A) vs (B) split, and how it compares with 220.82 and 220.87.
How to read your meter, panel label and appliance nameplates
Find your service size, main breaker rating, square footage and appliance nameplate watts, and how to get 12 months of peak demand from your utility.
2026 NEC changes for EV chargers, heat pumps and new loads
What the 2026 NEC changed for existing-home load calculations: Article 120, 2 VA per sq ft, new-load demand factors, EVSE at 80%, power control systems, and which states use it.
Which NEC edition applies to my house?
How to find which edition of the National Electrical Code (2020, 2023 or 2026) your state or city enforces, with links to NFPA's adoption map.
Questions to ask your electrician before a panel upgrade
A checklist of questions to ask before paying for a service upgrade for an EV charger, heat pump or induction range: load calculation, conductors, breaker spaces, load management and permits.