http://www.businessweek.com/...
"Lunar power" is the term offered by experts such as George Hagerman, a senior research associate at Virginia Tech
and co-author of a recent
EPRI marine-energy study.
"You can't know if the wind will be up in an hour," he says, "but you can predict the tide 1,000 years from now."
Hydropower already propelled one revolution in the U.S.
Starting in the Great Depression,
the government erected thousands of dams, spreading cheap power across many states.
Today they supply 7% of U.S. demand, some three times the combined share of wind, solar, and other renewables. Yet even as existing dams are being upgraded, environmental concerns thwart new building.
comment by one Business Week reader:
"Since nearly 75% of the world
lives near the coast, this seems obvious. ]
How can one make an investment play on this?"