Sunlight Direct Hybrid Solar Lighting

Sunlight Direct's hybrid solar lighting system is an interesting new technology that essentially pipes sunlight into buildings via fibre optics. The system makes use of a GPS aware light collector unit that sits on a building's roof. The unit utilizes GPS along with an onboard processor to orient the light collector to within .1 degrees of the sun to maximize efficiency. The system monitors a room's natural light intensity via photosensors and, during cloudy periods, compensates by increasing the traditional fluorescent or incandescent lighting output.

Here's a YouTube video of the product in action.

Since 30% of electricity used in the US is for lighting (the number grows to 45% in retail), the product would theoretically have a huge potential market, especially commercially. The commercial version will light about 1000 square feet at a cost of about $10,000. That may sound expensive, but that's really only because that's a lot of money. However, if the (hard to believe) claims in the video of retailers seeing a 40% boost in sales when using natural lighting is true, then the $10,000 is largely irrelevant when viewed over the long term. According to the video, the company plans on launching a residential unit in 2008. No word on pricing...

Here's an interview with Duncan Earl, CEO of Sunlight Direct, that's also worth a look.