Alternative Energy

Alternative Energy

Alternative energy news, and information about renewable energy technologies.

Oct 05

Wind Turbines and Radar Systems

Posted in Wind Farms | Wind Power | Wind Turbines

Radar TowerThe U.S. Department of Defence has released a report about the impact of wind farms on military radar installations. The report undermines previous U.S. Air Force report which stated that the impacts were minimal, and the new report calls more a more in-depth look at the risks. The report covers all aspects of risk, including the impact on military radar, commercial air radar and fishing and ocean navigation systems. The department would like to see radar ‘red zones’ implemented in order to appease national security concerns and maintain the credibility of current systems.

A report recently issued by the Department of Defense indicates that commercial wind turbines have the potential to affect radar installations. The same report, undertaken at the request of U.S. Rep. William Delahunt, D-Quincy, calls “overly simplified and technically flawed” a 2004 U.S. Air Force analysis which found that a proposed wind farm on Nantucket Sound would have no effect on its Pave Paws radar installation on the Upper Cape. The report further calls for a more exhaustive study of the wind farm and its relation to Pave Paws.

Delahunt said Monday the issue of radar first came to his attention through Yarmouth resident Cliff Carroll, a vocal opponent of the wind farm project. Those concerns, Delahunt said, were reinforced by a short briefing on the subject by defense officials. That briefing prompted Delahunt to request a study, the findings of which were released last week.

“I just wanted to have it done,” said Delahunt, who added that questions about the wind farm’s possible effects on such topics as military radar, commercial air traffic, fishing and navigation should be asked by everyone regardless of their stance on the controversial project.

“This [report] is preliminary but it clearly ratchets up the concerns,” said Delahunt, who also opposes the project. “We need some reassurances.”

The next step, said Delahunt, is a “thorough, exhaustive review” of the issues raised in the new report.

In a statement, the project’s most visible critic, the Alliance to Protect Nantucket Sound, said the Defense Department study validates its longtime concerns about the wind farm and radar. In addition, the Alliance called for further investigation and the establishment of what it called “red zones” in the only two areas in the country with early warning radar, Cape Cod Air Force Station and Beale Air Force Base in California.

“Military concerns about radar degradation have widespread implications for our national defense, but this issue also has serious implications for marine and aviation safety, particularly in Nantucket Sound where marine and aviation traffic is significant,” said Charles Vinick, president and CEO of the Alliance.

Mark Rodgers, a spokesman for the would-be developer, Cape Wind Associates, said the company is closely studying the report. He took exception to groups such as the Alliance equating the report with a conclusion that a wind farm on Nantucket Sound would necessarily hurt the work of Pave Paws.

“The Defense Department report, while it does criticize an Air Force analysis that found Cape Wind would have no impact on Pave Paws, and while it does call for a new study, does not say that Cape Wind will threaten or negatively affect Pave Paws,” said Rodgers.

In other words, he said, the new report finds fault with the methodology of the Air Force analysis but a more exhaustive report might reach the same conclusion.

“They’re not presupposing the conclusions of what a new study would find,” said Rodgers. “They [Alliance members] are willing to jump to conclusions, but no one will know until the study is done.”

Cape Wind Associates seeks to construct 130 wind turbines in the Sound. By company estimates, the wind farm would meet 75 percent of the Cape’s electricity needs.

  • jay

    I am currently on my high school debate team and out topic this year is alternative energy. me and my partners case is on wind power. I have learned a lot about all of the alternatives such as wind, nuclear, biofuels, geothermal, and solar. wind is by far the best and safest. Technically nuclear isnt an alternative (U.S. code of 08.) wind currently supplies enough energy in the united states to power 1.5 million houses!! The government should implement a long-term PTC for wind power available to everyone. also, wind power in 1990 in California ALONE offset 15 BILLION pounds of carbon dioxide emissions. Feel free to ask me about anything because I’m sure I’ll have the answer for you because in debate people bring up every little thing you could possible imagine. I’ve heard it all.

  • slaps

    I hear that there are problems with wind turbines accumulating ice, which comes off in large sheets, which have actually killed people. Is wind energy only suitable in southern places where ice doesn’t form? What safety precautions are necessary?

  • jay

    it very rarely occures because the turbines are spinning most of the time. on small home sized blades it is almost impossible for this to happen. even with the big ones (which are generally not placed close enough to homes for this to be a problem) the chances of the ice being flung, staying in one big piece, and flying through air are slim to none.

  • Tom

    How is wind power safer than solar? What are the operating costs of a 1.5 MW wind generator? What is the efficiency of a wind generator?
    What kind of co2 emissions are associated with the building and installation of large scale wind generators?
    Tom Courson

  • jay

    well for one, wind turbines take up alot less space. second, solar use a compound known as silicon. this can be very dangerous to wildlife and can cause many health problems. operating cost is very little to none. once you built it, theres really nothing elso to do but maybe occasional maintnance. As far as efficiency goes, it depends on many many factors. where you live, strength of wind, type of turbine, and size of turbine. generally they are operation about 95% of the time though. it only takes about 8-9 month for a wind turbine to produce the ammound of energy used for its construction and to save the ammount of emmisions burned in its manufacturing.

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