HOPKINS RIDGE, Wash. – The three-bladed windmills that slice the air above the greening Palouse hills present a new crop for Columbia County farmers. They can mean as much as $1,000 a month, per wind turbine, when the wind is blowing and the electricity is flowing down the line to the Northwest's power grid. But there are limits to what a person can sow and reap in alternative energy. In the case of wind energy, one of the biggest limitations is not a shortage of land on which to plant the 200-foot-tall towers, but the shortage of capacity on the Bonneville Power Administration's transmission lines.
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