For lifelong environmentalist David Dwyer, the cylindrical object mounted on top of his unfinished house at 1220 Michigan Ave. is the wave of the future.
That future is renewable energy, and the otherworldly item poised on his rooftop, a prototype of a wind generator, is just the beginning. Dwyer plans to be one of the first in the nation, or maybe the world, to combine multiple renewable energy technologies in an upper-class home —
