# CanMyPanel

> Free residential service load calculator: will a 60-400 A home electrical service handle a new EV charger, heat pump, induction range, heat pump water heater or dryer? Implements NEC 220.83 (120.83 in NEC 2026) existing dwelling, 220.82 optional and 220.87 12-month peak demand methods side by side, for the 2020, 2023 and 2026 editions, with step-by-step math. Estimate only; a licensed electrician and your local authority having jurisdiction decide; not an engineering stamp.

## Calculator
- [Calculator](https://canmypanel.com/): prefill with query strings, e.g. https://canmypanel.com/?service=100&sqft=1800&ed=2023&ex=range,dryer,wh,dw,ac&new=evse:7680 . Keys: service (A), sqft, ed (2020|2023|2026), ex and new (comma lists of load keys, optional :watts), peak (kW), ahj=1 (EVSE at 100%).
- Existing load keys: range, oven, cooktop, dryer, wh, dw, disp, mw, ac, hp, strip, baseboard, tub, well, pool, evx. New load keys: evse, nhp, nstrip, mini, ind, hpwh, hpwh120, ndryer, hpdryer, ntub, ncustom.
- [Printable worksheet](https://canmypanel.com/worksheet/)
- [Methodology and verification status](https://canmypanel.com/methodology/)

## Key facts
- 2020/2023 220.83: 3 VA/sq ft + 1,500 VA per small-appliance/laundry circuit + nameplates; first 8 kVA at 100%, remainder 40%; adding heat/AC uses 220.83(B) with the larger of heating or cooling at 100%. Worked example: 1,800 sq ft + 32 A EVSE ≈ 94 A.
- 2026 120.83 (secondary sources): 2 VA/sq ft; new EVSE 80%, new central resistance heat 80%, other new loads 50%.
- 220.87: 12-month peak × 125% + new load.
- As of Aug 3, 2026 (NFPA): 2026 NEC in 6 states, 2023 in 20, 2020 in 15.

## Plans (USD, live)
- Free: the full calculator, all methods and editions, on-screen worksheet. Unlimited, no account.
- Homeowner, $9 one-time: permit-style PDF (inputs, all three methods, edition, disclaimer) and one saved house.
- Pro electrician, $19/month: branded PDFs (business name, logo, license #), unlimited saved jobs, read-only client share links, plus Homeowner.
- Shop, $49/month: up to 5 seats, shared job library, AHJ templates (EVSE at 100%, edition, nameplate/demand defaults), plus Pro.
- [Pricing](https://canmypanel.com/pricing/) · [Refund and cancellation policy](https://canmypanel.com/terms/#refunds)

## Guides
- [Can a 100 amp panel handle an EV charger?](https://canmypanel.com/guides/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?](https://canmypanel.com/guides/200-amp-panel-heat-pump/): 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](https://canmypanel.com/guides/ev-charger-load-calculation/): 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?](https://canmypanel.com/guides/induction-range-panel-requirements/): 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?](https://canmypanel.com/guides/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](https://canmypanel.com/guides/nec-220-83-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](https://canmypanel.com/guides/read-your-meter-and-panel-label/): 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](https://canmypanel.com/guides/nec-2026-changes-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?](https://canmypanel.com/guides/which-nec-edition-applies/): 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](https://canmypanel.com/guides/questions-to-ask-your-electrician/): 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.