Electrical Load Case Studies

Version 2.0 — a complete rebuild from the ground up. NEW — Calculators with reasoning Residential and commercial load calculators, conductor and breaker sizing, voltage drop, and box fill. Every result comes with a numbered step-by-step breakdown showing the formula, intermediate values, and the NEC article each step cites. NEW — Case studies you can interact with Three progressive case studies (small dwelling → multifamily → small commercial) with reveal-on-tap reasoning steps and decision-point quizzes that explain why each answer is right or wrong. NEW — NEC code browser Searchable summaries of the load-calculation articles plus a "common mistakes" list for each. Tap a reference badge in any calculator step to jump straight to the article. NEW — Scenario simulator Add an EV charger, swap AC for a heat pump, add an ADU, or test a PV interconnection. See the calculation before and after, with a clear flag if the existing service needs to be upgraded. NEW — Practice mode Self-assessment problems with tolerance-based grading and full worked solutions. NEW — PDF export Project-ready output of any calculation, ready to share or file. Modernized for iOS 17 and the latest iPhones and iPads — full Auto Layout, Dark Mode, accessibility, and the privacy manifest required by current App Store guidelines. Thanks for the feedback that shaped this update.