Beyond Wind and Solar

Beyond Wind and Solar,
a New Generation of Clean Energy

By Juliet Eilperin

Washington Post Staff Writer
Saturday, September 1, 2007; Page A01

PORTLAND, Ore. -- Oregon Iron Works has the feel of a World War II-era shipyard, with sparks flying from welders' torches and massive hydraulic presses flattening large sheets of metal. But this factory floor represents the cutting edge of American renewable-energy technology.

The plant is assembling a test buoy for Finavera Renewables, a Canadian company that hopes to harness ocean waves off the coast of Oregon to produce electricity for U.S. consumers. And Finavera is not Iron Works' only alternative-energy client: So many companies have approached it with ideas that it has created a "renewable-energy projects manager" to oversee them.

"In the last year, it's just exploded with ideas out there," said Vice President Chandra Brown. "We like to build these creative new things."

As policymakers promote alternative energy sources to reduce the United States' emissions of greenhouse gases and its dependence on foreign oil, entrepreneurs are becoming increasingly inventive about finding novel ways to power the economy.

Beyond solar power and wind, which is America's most developed renewable-energy sector, a host of companies are exploring a variety of more obscure technologies. Researchers are trying to come up with ways to turn algae into diesel fuel. In landfills, startups are attempting to wring energy out of waste such as leaves, tires and "car fluff" from junked automobiles.

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"There's just such an enormous power out there," Inslee said, noting that there is nearly 900 times as much energy in a cubic meter of moving water as in a cubic meter of air. "I was wondering how we could capture that."