A UK-based company called Quiet Revolution is taking Europe by storm with its rooftop wind generator that has blades designed to revolve around a verticle axis.
rooftop

Rooftop Wind Generator Takes Europe by Storm
(via www.greentechgazette.com)
Submitted by greentechgazette on Wed, 2008-09-03 21:47. | Tags: technology | energy | generator | quiet | revolution | rooftop | turbine | wind
Video: Schwarzenegger Highlights Nation's Largest Rooftop Solar Installation
(via video.energypolicytv.com)
Governor Schwarzenegger joins Southern California Edison officials on the rooftop of ProLogis in Fontana, CA, to announce the nation's largest rooftopsolar installation project ever proposed by a utility company.
Submitted by EPTV on Mon, 2008-03-31 16:55. | Tags: business | arnold schwarzenegger | California | electricity | energy | generation | ProLogis | pv | renewable | rooftop | schwarzenegger | solar | Southern California Edison | utility | video | watts