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November 22nd, 2009
Solar power technology takes its next step
Abstract:
SRS Energy has created "sole power" tiles, which are coated with thin-film flexible photovoltaic cells. The roof tiles are a dark blue colour to maximise the absorption of sunlight, and will be available from spring 2010.
The tiles are an example of how technology, in the form of new polymers and coatings, has the potential to increase the amount of energy that can be adapted from the sun.
For years most solar cells struggled to harness just one sixth of the sun's energy.
But newer materials are helping solar panels become more efficient, according to Professor Tony Day, director of the Centre for Efficient and Renewable Energy in Building, London South Bank University.
"Laboratory tests are showing we can get to module efficiencies of about 22-23%, with traditional materials," he said.
"The next generation of materials it looks in the laboratory to be moving towards 30%, and in some specialist applications even 40%," he added.
Source:
bbc.co.uk
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