Small Scale Hydro Power for Buildings


Daryl Ng was taking a long shower, as he does every morning. And his wife, as she does every morning, scolded him for needlessly using so much water.

“How can I justify the amount of time I’m taking?” Mr. Ng recalled thinking to himself. And while looking at the water running down the drain, he got an idea.

Why not harness that wasted water running down the drain? With Hong Kong’s high concentration of skyscrapers, could gravity generate a considerable amount of electricity?

Fortunately, Mr. Ng is the grandson of the founder of Sino Land, a Hong Kong property developer, and one of the company’s executive directors. So he set up a prototype system in Olympian City, one of the company’s shopping malls in Hong Kong.

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