Hybrid lighting, currently available only for large-scale commercial buildings, is an exciting new technology that could greatly lower buildings' carbon emissions. Marilyn Brown, of the Georgia Institute of Technology, worked with scientists at the Oak Ridge National Laboratory to develop it.
Marilyn Brown: "So you have roof mounted collectors that concentrate the sunlight into optical fibers. And these fibers carry the sunlight into the building, into light fixtures. These light fixtures also contain electric lamps. For instance, they may be combined with fluorescent tubes. So that, whether there is sunshine or not, the lighting in that room will be very bright and appealing."
Sunlight Direct plans to start beta testing a residential model in 2008.