Why the US is Stuck on 120V (While the World Moved to 230V)

Why does the U.S. still use 120 volts while much of the world runs on 230? It wasn’t because America chose the best system. It was because Thomas Edison picked a number that worked for his light bulb in 1882… and the country never escaped it. In this video, we trace how one decision at Pearl Street Station shaped American wiring, appliances, safety standards, and even the outlets in your walls. From Edison vs. Tesla and the War of Currents to Europe’s cheaper 220–230V systems and Japan’s bizarre split-frequency grid, this is the hidden history of how outdated infrastructure survives for generations. What starts as a story about voltage becomes a story about path dependence, lock-in, and why “better” technology often loses to whatever got built first. In this episode: • Why a hairdryer pulls less current in Paris than New York • How Edison’s carbon-filament bulb locked America into 110/120V • Why AC won but U.S. voltage stayed the same • How Europe saved copper by switching to 220–230V • Why America couldn’t realistically change in the 1950s • The split-phase trick that gives U.S. homes both 120V and 240V • Japan’s 50Hz / 60Hz divide and how it still causes problems • The real pros and cons of low-voltage vs high-voltage systems If you like the strange backstories behind everyday technology, subscribe to Weirdward Bound and stick around for more. 00:00 Intro 02:30 Pearl Street Turns On 05:21 Tesla, AC, And The War Of Currents 09:21 America Keeps Edison's Voltage 10:01 Europe Switches To 220 Volts 12:36 Why America Could Not Change 15:07 The Split-Phase Workaround 16:59 Japan's Frequency Trap 18:59 Path Dependence And Safety 21:32 The Hidden Cost Of 120 Volts 22:36 Why Electronics Mostly No Longer Care 24:43 Outro