In the space of one hour last month, electricity generated at wind farms in the eastern end of the Columbia River Gorge shot up by 1,000 megawatts -- enough to power some 680,000 homes. Less than an hour later, it plummeted almost as much. In coping with the variations, the BPA has at times adjusted flows through dams at rates that exceeded guidelines established to protect fish. "It is stressful. You have the threat of fish issues on one hand you are trying to prevent, and at the same time you're trying to meet load," she said. The events of June 4 and 5 highlight the challenge facing the agency

Looking east into Gilliam County and north into Washington, turbines are strung over ridgelines as far as the eye can see. And there are nowhere near enough of them. ...West Coast utilities and independent power producers are locked in a land rush to secure the best wind sites and the power they produce. Coupled with a worldwide shortage of turbines and a falling dollar, the resulting scarcity is driving up the cost of wind power, a burden electricity ratepayers will shoulder.

There's a big obstacle to creating a shiny techno-green future by adding wind, sun and wave energy to our power system: the grid. The nation's electric power transmission system, aka the grid, could be imagined as an overworked tangle of fraying household wires repeatedly spliced together by your grandfather, who refuses to call the electrician. It is based on century-old technology and, from a modern management perspective, is dumb. Often, it's likened to the nation's highway system. But one local utilities executive said that is wishful thinking. "More like a collection of New England country lanes," said Roger Garratt, resource acquisition manager for Puget Sound Energy.

The United States is expected to be home to an anticipated 49,000 MW of installed wind-power capacity by 2015, making it the world's largest wind-power producer, according to a recent report. Developers are expected to invest more than $65 billion between 2007 and 2015 in wind-power facilities, researchers say.

Sen. Maria Cantwell (D-Wash.) peddled a Democratic energy bill in her party's radio address Saturday despite the bill stalling over a dispute on renewable energy this week.

A tax break that has helped spur the development of windmill farms in Washington state could be extended for five years as part of the new Senate energy bill, Sen. Maria Cantwell said Wednesday. But the ability to carry that power from turbines in some of the wind-swept regions of the Northwest to the customers who need it isn't part of the proposal at this time.

Energy consumption: Universities are paying more for renewable energy generated by dams and wind farms. Western Washington University and The Evergreen State College were among the first in the state to go 100 percent green. Colleges are also exploring other energy options, such as biodiesel and solar power.

Cantwell, a member of the Senate Energy Committee, helped push through Congress a two-year extension of a production tax credit for wind energy, which helped seal the current Vestas deal and provide jobs at the Port, Clark said. The credit was to expire on Dec. 31, 2005. The extension provides a 1.9 cent per kilowatt hour tax credit to the wind farm owner -- which passes the savings to ratepayers -- for electricity generated with turbines over the first 10 years of a project -- a break that has been crucial to wind farm development, port officials said. Cantwell said she also has proposed a bill for the development of clean energy that would ensure the tax credit until 2015. The lengthy extension would provide more predictability for investment and allow the wind power industry to grow, she said.

The state Energy Facility Site Evaluation Council has agreed to grant $1.3 million to a trust for the purchase of land near the Wild Horse Wind Power project in Kittitas County. The money would be used to preserve habitat for elk and sage grouse.