Now Playing: Willis Renewables, solar hot water - Ashden Awards

ADDED: 7/19/2010 at 3:56 AM

Innovation is at the heart of sustainability. Yet often that innovation is about enhancing what we have already got. The Solasyphon is a perfect example. A plumbing innovation that speeds up and simplifies the retro-fitting of solar water heating in existing homes, it saves the cost and carbon impact of buying a new water tank. So far 1,300 Solasyphons have been sold and there is strong interest from companies as far afield as the US and New Zealand. http://www.ashdenawards.org/winners/Willis10

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