EV Charger Load Calculator for Kansas

Worked example for Kansas

For a 80 A Level 2 charger on a 240 V single-phase circuit, the OCPD is sized to 100 A (80 × 1.25 = 100.0 A, rounded up to the next standard breaker). The conductor must carry 100 A after Kansas's 0.82× correction — that typically lands at #6 AWG copper THWN-2 for a residential garage run, with conduit fill checked separately if you're stacking multiple home runs.

Code & Utilities

The applicable code in Kansas is the NEC 2020, which the state adopted in 2022. That includes Article 625 (Electric Vehicle Power Transfer System) requirements: 125% continuous-load sizing on EVSE branch circuits, GFCI protection at outdoor receptacles, and provisions for energy management systems on shared circuits.

In Kansas, you'll most often interconnect with Evergy, Kansas Electric Power Cooperative, Westar Energy. Always verify the applicable tariff and any utility-specific requirements (CT cabinets, metering enclosures, demand limiters) at design time.

Climate & Ampacity

Kansas's representative summer design ambient is around 99°F, which yields a 0.82× ampacity correction factor at 75°C terminations per NEC 310.15(B)(1). Because the correction is below 0.9, conductors that "look fine" on a 30°C ampacity table will not carry their nameplate current here — always derate explicitly.

Kansas takeaway

Always cross-check the EVSE manufacturer's listed maximum overcurrent rating; Evergy may also have specific service-upgrade or load-management requirements you'll need to coordinate before final inspection.