WASHINGTON — The government for the first time has enforced environmental laws protecting birds against wind energy facilities, winning a $1 million settlement from a power company that pleaded guilty to killing 14 eagles and 149 other birds at two Wyoming wind farms.
The Obama administration has championed pollution-free wind power and used the same law against oil companies and power companies for drowning and electrocuting birds. The case against Duke Energy Corp. and its renewable energy arm was the first prosecuted under the Migratory Bird Treaty Act against a wind energy company.
“In this plea agreement, Duke Energy Renewables acknowledges that it constructed these wind projects in a manner it knew beforehand would likely result in avian deaths,” Robert G. Dreher, acting assistant attorney general for the Justice Department’s Environment and Natural Resources Division, said in a statement Friday.
An investigation by The Associated Press in May revealed dozens of eagle deaths from wind energy facilities, including at Duke’s Top of the World farm outside Casper, Wyo., the deadliest for eagles of 15 such facilities that Duke operates nationwide. The other wind farm included in the settlement, Campbell Hill, is northwest of Casper.
The Charlotte, N.C.-based Duke has a market capitalization of nearly $50 billion.
“We deeply regret the impacts of golden eagles at two of our wind facilities,” said Greg Wolf, president of Duke Energy Renewables Inc. in a statement. “Our goal is to provide the benefits of wind energy in the most environmentally responsible way possible.”
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A study in September by federal biologists found that wind turbines had killed at least 67 bald and golden eagles since 2008. That did not include deaths at Altamont Pass, an area in northern California where wind farms kill an estimated 60 eagles a year.
Until Friday’s announcement, not a single wind energy company had been prosecuted for a death of an eagle or other protected bird — even though each death is a violation of federal law.
In 2009, Exxon Mobil pleaded guilty and paid $600,000 for killing 85 birds in five states. The BP oil company was fined $100 million for killing and harming migratory birds during the 2010 Gulf oil spill. And PacifiCorp, which operates coal plants, paid more than $10.5 million in 2009 for electrocuting 232 eagles along power lines and at its substations.
Wind farms are clusters of turbines as tall as 30-story buildings, with spinning rotors as wide as a passenger jet’s wingspan. Though the blades appear to move slowly, they can reach speeds up to 170 mph at the tips, creating tornado-like vortexes.
Flying eagles behave like drivers texting on their cellphones; they don’t look up. As they scan for food, they don’t notice the industrial turbine blades until it’s too late.
The wind farms in Friday’s settlement came on line before the Obama administration drafted voluntary guidelines encouraging wind energy companies to work with the Fish and Wildlife Service to avoid locations that would impact wildlife. Companies that choose to cooperate get rewarded, because prosecutors take it into consideration before pursuing prosecution.
Once a wind farm is built, there is little a company can do to stop the deaths. Some firms have tried using radar to detect birds and to shut down the turbines when they get too close. Others have used human spotters to warn when birds are flying too close to the blades. Another tactic has been to remove vegetation to reduce the prey the birds like to eat.
As part of the agreement, Duke will continue to use field biologists to identify eagles and shut down turbines when they get too close. It will install new radar technology, similar to what is used in Afghanistan to track missiles. And it will continue to voluntarily report all eagle and bird deaths to the government.
While the settlement with Duke is a first, there could be more enforcement. The Fish and Wildlife Service is investigating 18 bird-death cases involving wind-power facilities, and about a half dozen have been referred to the Justice Department.
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