Fact of the Day More Information Con Edison is in control of this massive subterranean, labyrinthine complex. Steam power is extremely versatile and even meets FDA standards of cleanliness and sterility. In total, the system consists of around 100 miles of piping. Steam is the most efficient means of controlling temperature in high-rise buildings.
The Gotham Gazette reported that one of the massive boilers is a whopping 95 feet tall. In a given year, 30,000,000,000 pounds of steam is generated under New York City. The second largest system, in Paris, boasts only half of this figure.
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