PORTLAND, Ore. (AP) — Commuting the 20-mile stretch of Interstate 84 from Hood River to The Dalles, Susan Wolff couldn't help notice truck after truck also headed east, their flatbed trailers loaded with long cylinders — wind turbine components.

"There have to be jobs tied to these," Wolff thought.

With that much machinery moving down the highway, and that much installation and building going on, she smelled an opportunity. And as chief academic officer for Columbia Gorge Community College, Wolff was in a position to pursue the notion.

Two years later, the college is churning out technicians for the booming wind farms of the mid-Columbia. Having developed a curriculum that fits the wind power companies' needs, the college has placed 50 to 55 graduates who maintain the electronic and mechanical systems of the 400-foot-tall wind turbines that have sprouted in the rolling hills of north-central Oregon and across the river in Washington.

The money is good — Wolff estimates graduates earn $18 to $24 an hour — and demand is hot. An initial assessment indicated the wind power companies within a 50-mile radius of The Dalles would need 360 technicians by 2011. The projected need has since jumped to 500 to 600 technicians.

It's an economic and environmental success story in an area hard pressed for family-wage jobs, an example of "green collar" employment blossoming in reaction to high energy costs and concerns about global warming. And advocates say it shows sustainable technologies don't have to mean cutting back, but can mean growth instead.

In this case, easing our dependence on traditional electrical power sources such as hydro and coal can generate household income.

Oregon Gov. Ted Kulongoski is a believer. He calls jobs in the solar, wind and biofuels fields the "entrance of a new economy."

Oregon's community colleges, and at least one trade union, are gearing up for the change. Columbia Gorge Community College, which will admit 36 more students this fall and now offers one-year certificates and two-year degrees in its Renewable Energy Technology program, is deepening its partnership with wind farm companies.

Portland Community College teamed up with SolarWorld to train workers for the company's new solar panel manufacturing plant in Hillsboro. The college offers an associate degree in solar voltaic manufacturing technology and a shorter certificate program in solar technology. Of 20 students enrolled recently in a basic electronics class, 18 were scheduled for interviews with SolarWorld.

Lane Community College in Eugene, meanwhile, offers an energy management program, and other colleges are developing similar courses.

The International Brotherhood of Electrical Workers has seen the lighting on the wall as well. The union operates training centers in Portland and Tangent at which journeymen and apprentice electricians learn to place, wire, install and maintain solar panels. The panels, often mounted on rooftops, generate direct-current electricity that is converted to alternating current for home or office use or for distribution to the electrical grid.

Learning to install the panels is a skill electricians increasingly need to have, said Greg Creal, the instructor in Tangent, near Albany. More than 400 students have taken the two-day, 16-hour course in the past three years.

"We start with how sunlight is turned into electricity at the molecular level, and we finish up by doing a mock installation on the side of our building," Creal said. "The class is generally full; we have to turn people away."

Hughes Electrical Contractor of Portland recently sent an eight-member crew through training. The training could give the company an edge when it bids on construction jobs, superintendent Jeff Stanton said.