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India to test "floating" solar power plant

EM NEWS BUREAU ,  Thursday, May 12, 2011, 11:42 Hrs  [IST]


Untitled - 49.jpgAustralian solar power company Sunengy Pty Ltd has entered into a partnership with India's largest integrated private power utility, Tata Power that will allow it build a pilot plant for its low-cost, floating-on-water, solar technology in India this year. Construction of the pilot plant in India will commence in August 2011.

Sunengy Chairman and Executive Director of Business Development, Peter Wakeman, said that Tata Power, a flagship company of Tata Group, has partnered with Sunengy for its interest in its patented Liquid Solar Array (LSA) technology. Wakeman said the deal was significant for the future use of solar globally because it allows Sunengy to demonstrate the practicality of its technology in one of the world's most promising solar power markets.

The LSA was invented by Phil Connor, Sunengy Executive Director and Chief Technology Officer and a passionate advocate for solar power for 45 years. Connor said that when located on and combined with hydroelectric dams, LSA provides the breakthroughs of reduced cost and 'on demand' 24/7 availability that are necessary for solar power to become widely used. The LSA uses traditional Concentrated Photovoltaic (CPV) technology-a lens and a small area of solar cells that tracks the sun throughout the day, like a sunflower.

Floating the LSA on water reduces the need for expensive supporting structures to protect it from high winds. The lenses submerge in bad weather and the water also cools the cells which increases their efficiency and life-span. According to Connor, hydropower supplies 87 percent of the world's renewable energy and 16 percent of the world's power but is limited by its water resource. He said an LSA installation could match the power output of a typical hydro dam using less than 10 percent of its surface area and supply an additional six to eight hours of power per day. "LSA effectively turns a dam into a very large battery, offering free solar storage and opportunity for improved water resource management," Connor said.

"If India uses just one percent of its 30,000 square kilometers of captured water with our system, we can generate power equivalent to 15 large coal-fired power stations," Connor noted.

Banmali Agrawala, Executive Director, Tata Power said "In our quest to deliver sustainable energy, Tata Power is consistently investing in clean and eco-friendly technologies. We have partnered with Sunengy, Australia for a pilot plant in India, which is concentrated photovoltaic solar technology that floats on water. This nascent technology will be demonstrated in the natural environment; it utilises the water surface for mounting and does not compete with land that can be used for other purposes."

Wakeman said that the primary market for LSA is the provision of industrial scale electricity via hydropower facilities. Other markets include mining sites as well as villages and remote communities reliant on diesel power generators. Sunengy plans to establish a larger LSA system in NSW Hunter Valley in mid 2012 before going into full production.
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