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America’s transition to electric lighting began on a much smaller scale than a national network. On September 4, 1882, Thomas Edison’s Pearl Street Station started supplying electricity to 59 nearby customers in New York City. Nearly six decades later, the 1940 Census found electric lights in 78.7 percent of occupied American housing units, according to the Census Bureau’s history of electrification. Those two milestones reveal the distance between demonstrating a working system and bringing electric lighting into ordinary homes. More than one in five occupied housing units still lacked electric lights in 1940. That census was the first to ask about household lighting sources, providing a national measure of how far the transition had progressed. Pearl Street’s location reflected a practical calculation. Edison chose New York’s Financial District because it brought potential customers and investors close together. The station served a one-square-mile area, with nearly 100,000 feet of underground copper wire connecting its generating equipment to incandescent lamps. The machinery behind that local service was substantial: six steam-driven dynamos, each weighing 27 tons. Together, they could generate enough low-voltage direct-current electricity to power approximately 7,200 lamps. By 1884, the station’s customer count had grown beyond 500. According to the Census Bureau, Pearl Street was initially financially unsuccessful. But it demonstrated that Edison’s system worked and attracted investors. Additional stations followed in New York City, while licensed installations brought central power plants to Shamokin, Pennsylvania, in November 1882, and to Brockton, Lawrence and Fall River, Massachusetts, and Newburgh, New York, in 1883. The pioneering station also showed how quickly electrical infrastructure could become outdated. A fire on January 2, 1890, nearly destroyed it, but workers rebuilt and restored service in 11 days. More efficient technology and plant designs subsequently expanded service areas, leaving Pearl Street increasingly obsolete. It continued supplying direct-current electricity until 1895. The record supports a gradual, uneven transition rather than a single moment when American homes became electrified. Pearl Street established a working model for concentrated urban service; the 1940 housing figures show that electric lighting remained far from universal decades later. They measure access to electric lights, however, without establishing what individual families paid or why particular homes remained without them.
America’s transition to electric lighting began on a much smaller scale than a national network. On September 4, 1882, Thomas Edison’s Pearl Street Station started supplying electricity to 59 nearby customers in New York City. Nearly six decades later, the 1940 Census found electric lights in 78.7 percent of occupied American housing units, according to the Census Bureau’s history of electrification.
Those two milestones reveal the distance between demonstrating a working system and bringing electric lighting into ordinary homes. More than one in five occupied housing units still lacked electric lights in 1940. That census was the first to ask about household lighting sources, providing a national measure of how far the transition had progressed.
Pearl Street’s location reflected a practical calculation. Edison chose New York’s Financial District because it brought potential customers and investors close together. The station served a one-square-mile area, with nearly 100,000 feet of underground copper wire connecting its generating equipment to incandescent lamps.
The machinery behind that local service was substantial: six steam-driven dynamos, each weighing 27 tons. Together, they could generate enough low-voltage direct-current electricity to power approximately 7,200 lamps. By 1884, the station’s customer count had grown beyond 500.
According to the Census Bureau, Pearl Street was initially financially unsuccessful. But it demonstrated that Edison’s system worked and attracted investors. Additional stations followed in New York City, while licensed installations brought central power plants to Shamokin, Pennsylvania, in November 1882, and to Brockton, Lawrence and Fall River, Massachusetts, and Newburgh, New York, in 1883.
The pioneering station also showed how quickly electrical infrastructure could become outdated. A fire on January 2, 1890, nearly destroyed it, but workers rebuilt and restored service in 11 days. More efficient technology and plant designs subsequently expanded service areas, leaving Pearl Street increasingly obsolete. It continued supplying direct-current electricity until 1895.
The record supports a gradual, uneven transition rather than a single moment when American homes became electrified. Pearl Street established a working model for concentrated urban service; the 1940 housing figures show that electric lighting remained far from universal decades later. They measure access to electric lights, however, without establishing what individual families paid or why particular homes remained without them.
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