NY Times / When Its Too Cold For Wind Turbines To Spin

Published: February 4, 2010

For those who suspect residents in places like Minnesota of embellishment when it comes to their tales of bitterly cold winter weather, consider this: even some wind turbines, it seems, cannot bear it.

Jim Gehrz/Minneapolis Star-Tribune

Inspecting a windmill in Chaska, Minn. The blades on some in the area have been stationary.

Related

Times Topics: Wind Power

Turbines, more than 100 feet tall, were installed last year in 11 Minnesota cities to provide power, and also to serve as educational symbols in a state that has mandated that a quarter of its electricity come from renewable resources by 2025.

One problem, though: The windmills, supposed to go online this winter, mostly just sat still, people in cities like North St. Paul and Chaska said, rarely if ever budging. Residents took note. Schoolchildren asked questions. Complaints accumulated.

“If people see a water tower, they expect it to stand still,” said Wally Wysopal, the city manager of North St. Paul. “If there’s a turbine, they want it to turn.”

No one knows for sure why these turbines do not. Officials believe there may be several reasons, but weather is the focus of much speculation. It is not as though turbines cannot function in cold places; thousands of them work perfectly well throughout Minnesota and the Midwest, the American Wind Energy Association is quick to note.

But the 12 turbines in question, each 20 years old, spent their earlier years twirling in California.

“If you were to move a car from California to Minnesota, say, you would need to change the fluids,” said Derick O. Dahlen, president of Avant Energy, which manages the windmills for the Minnesota Municipal Power Agency.

Mr. Dahlen said workers were busy testing the turbines and, among other things, expected to add warming elements to gear boxes, oil and computers. In a month, he predicted, the turbines will be spinning smoothly.

A possible setback: Mark Tresidder, another Avant official, said the state’s latest forecast included talk of sinking temperatures, an ice storm, maybe snow.

“Given Minnesota weather,” Mr. Tresidder said, “there may be days when people can’t work out there.”

Views: 35

Reply to This

Replies to This Discussion

Just wait until there is a major ice storm in the area of the turbines. When the ice begins flying off the props it will be like 105's incoming I suspect. Happened to a firend of my son in west Tex. Better get the cows out of the pasture!
This isn't about wind turbines but it is another weather related problem a lot of folks obviously didn't anticipate. Apparently many cities or states invested in LED lights for their traffic lights...only the new lights are cool, they don't melt ice and snow accumulating on "red lights" causing dangerous intersections and several reported deaths. The old lights stayed warm enough to keep the signals clear.

Now public works departments in those areas are having to pay people to manually clear the traffic lights, which is not a job for the faint-hearted!

RSS

Support GoHaynesvilleShale.com

Not a member? Get our email.

Groups



© 2024   Created by Keith Mauck (Site Publisher).   Powered by

Badges  |  Report an Issue  |  Terms of Service