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Colour Filters and Solar Panels

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Fourteen-year-old Katie Fitzgerald was introduced to the Consol Solar Jar (CSJ) by her dad. The solar powered light instantly intrigued her. At school, Katie was learning about the relationship between light, colour and the visible spectrum. She began to explore ideas for incorporating the CSJ into her project submission for the Grade 7 Science Expo Competition. Katie discovered what effect colour filters have on solar light.

Katie placed sheets of coloured cellophane - red, orange, yellow, green, blue and violet - over the solar panels that are embedded in the lids of Consol Solar Jars. The cellophane acted as a colour filter. She placed the CSJs in the sun to charge for two hours. Katie then measured the burning time (in hours) of each light.

Results showed that different coloured filters had different effects on the burning time of a solar powered light. This is an interesting observation. Suntoy congratulates Katie on her findings. Check out Katie’s school project, The Effect of Colour Filters on Solar Panels, and download her presentation: The Effect of Colour Filters on Solar Panels.

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