What Are Microgrids?
Union of Concerned Scientists
MAY 28, 2025
In 1882, Thomas Edison flipped on the switch at the Pearl Street Station , the worlds first permanent power plant. Eighty customers within a one-kilometer radius formed this earliest instance of the grid. This model proved highly effective, with business expanding to over 500 customers within two years. But other power stations soon got in the game, and the edges of these small grids eventually started to touch each other.
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