The history of electricity
The American electrical system is an amazing accomplishment. Only 125 years ago, electricity was a new and luxurious item, and in less than a century, it’s grown into an incredible and essential system for nation.
Three interconnected grids comprised of 450,000 miles of power lines and 160,000 miles of overhead transmission lines bring power to the nation’s homes and businesses. Over 180 million wood, metal, and concrete poles, ranging in height from 30-120 feet, hold the above-ground wiring. Every year, those lines supply almost 4 trillion kilowatt-hours of power, enough to power 8 billion refrigerators in a single year.
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