If every household in Canada replaced one incandescent light bulb with a compact fluorescent light bulb (CFL), it would be equivalent to taking 66,000 cars off the streets, according to energy star [1] statistics. This smart and simple swap was the bright idea behind Project Porchlight's mission to light up Calgary with free eco-friendly bulbs. Between October 2008 and January 2009, the not-for-profit organization's army of volunteers went door-to-door handing out 190,000 CFLs to Calgary homeowners.

On average, CFLs are 75 percent more efficient than incandescent bulbs and also shave approximately $50 off electricity bills over their five-to-seven-year lifespan.

Project Porchlight is an initiative of One Change [2], an Ottawa-based grassroots organization that promotes energy efficiency. More than 500 communities across Canada and the U.S participated. Calgary's campaign was sponsored by the Government of Alberta [3], the City of Calgary [4] and EnCana [5]. (1-866-585-6359, projectporchlight.com [6])

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