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Tapping in-building hydropower

A Hong Kong developer has set up a novel system which is powering lighting in two company projects, reports ALEX FREW McMILLAN

Published Thu, Dec 19, 2013 · 10:00 PM
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[HONG KONG]

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 gr…

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