Suniva's investors have put US $55 million of venture capital into a startup whose technology promises to achieve high efficiencies with low-cost monocrystalline silicon solar cells. Denis Du Bois interviews founder and solar pioneer Ajeet Rohatgi about the future of the PV industry and the meaning of his company's name. (podcast)

We explore three commercial buildings without power bills, and contrast the many meanings of "zero" in energy and carbon. First, a commercial building proven to be zero energy -- and then some. In the first 12 months after construction, this building produced more energy than it consumed. Then we learn about two more buildings presented in the ZEB session at Globe last month. The Energy Minute is about the meaning of zero: What should be counted when designating a building "net zero energy" or "zero carbon"? In the Program Notes we have photos and links to more information for those of you who are researching the net-zero option for your own buildings. (podcast) (photo)

CHICAGO, April 1, 2008 -- Remember the turn of the 21st century, when intelligent buildings were at the bleeding edge of technology? Now, artificial intelligence is out of the lab and headed for a building near you. Buildings have literally taken on a life of their own and today, the first of April, the first sentient building opened in Chicago Illinois. Denis Du Bois interviews Cornice Leed, the brains of the new Gore Tower office building in the Windy City. (podcast) (transcript)

Energy Minute: Biomass is slowly gaining popularity for space heat -- in part because it's a renewable energy source, and in part because it's less expensive to operate than a conventional furnace. (podcast)

Energy is the theme of the upcoming ConnectivityWeek conference -- specifically the energy we use in buildings, and how we can leverage things like renewables, distributed energy, demand response, and information to help solve energy-related problems. Denis Du Bois interviews Anto Budiardjo, president and CEO of Clasma Events, about the "energy revolution" that will change the way buildings are designed and built. (podcast)

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