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Bright ideas from above

Google has long been the go-to for information, humour and anything else you can poke a search engine at. Now, after successfully mapping the world's streets, it has turned its sights towards even brighter things with a search platform that focuses on solar power at home.

Set to map the planet's solar potential one roof at a time, Project Sunroof uses Google's expansive data mapping and computing resources to locate your home then calculate the best solar plan for you. The service charts how much sun exposure your roof has daily and takes into account your energy bill, then provides affordable and accessible options. Currently up and running in a few US locations, it could be the brightest idea we've heard this week.