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Topic: Birds and Wind Power 風力發電對雀鳥的影響 (Read 900 times) |
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Webcreeper
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Birds and Wind Power 風力發電對雀鳥的影響
« on: Sep 21st, 2005, 11:07pm » |
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18 June 2005 New Scientist
丹麥研究顯示，遷徙中的候鳥會主動避開風力發電機，在兩台機之間飛過，或者避 得老遠。
Wind turbines a breeze for migrating birds
MIGRATING birds seldom dice with death among the spinning blades of wind turbines. Instead, they give them a wide berth, according to a study of a Danish offshore wind farm.
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| « Last Edit: Sep 23rd, 2005, 1:29pm by Webcreeper » |
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HF_Cheung
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Re: Birds Avoid Wind Turbines 候鳥會避開風力發電機
« Reply #1 on: Sep 23rd, 2005, 12:14pm » |
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I see the word seldom. The question is "how many". Also becsuse the study is by the wind farm, my confidence to the report has dropped.
The HK Electric has announced building 3 wind turbine generators in Lamma. We have a chance to see it ourselves.
HF Cheung
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Webcreeper
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Re: Birds Avoid Wind Turbines 候鳥會避開風力發電機
« Reply #2 on: Sep 23rd, 2005, 1:17pm » |
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Yes, we should see evidence from both sides.
對，一定要看雙方提出的事實。
Relevant post 之前的相關貼文：
Wind Farms and Birds 風力發電對雀鳥的影響
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Webcreeper
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Re: Birds Avoid Wind Turbines 候鳥會避開風力發電機
« Reply #3 on: Sep 23rd, 2005, 1:28pm » |
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20/9/05 明報 Mingpao (via Yahoo)
HK Electric’s wind turbine at Lamma Island will come on line in January next year.
中環豎立風車模型 綠色和平倡風力發電
港燈剛於上周完成在南丫島安裝香港首台風力發電裝置，即將試產﹔環保團體卻認 為本港的風力發電仍做得不夠，建議政府及電力公司加速發展。綠色和平昨日在中 環皇后碼頭豎立1台模型風車，指風力發電是減少排放污染物的最理想發電方法， 而且成本低廉。
綠色和平氣候變化及可再生能源項目主任張韻琪稱，根據外國經驗，1支1兆瓦裝機 容量的風車，平均可為500人供電，如果安裝10支風車，就能為5000人供電，直接 減少2萬4千公噸二氧化碳，有助改善空氣質素。她指可再生能源中，風能是成本最 低的一種。
她又指，中國已成為全球十大使用風力發電的國家，單是廣東已裝有180支風車， 上海在未來5年亦會發展海上風力場，香港作為珠三角一分子，有責任共同降低空 氣污染。
清水灣等地可設風力場
她建議當局可考慮在清水灣、西貢、東坪洲等地設立風力場，或考慮粵港共同開發 。
港燈上星期在南丫島建立全港首台利用風力發電的風車，每年可為250個4人家庭供 電1年。此舉可節省350噸煤，並且減少排放溫室氣體，準備明年1月正式投產。
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| « Last Edit: Sep 23rd, 2005, 1:32pm by Webcreeper » |
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HKBWS Project
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Re: Birds and Wind Power 風力發電對雀鳥的影響
« Reply #4 on: Sep 27th, 2005, 11:49am » |
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ALAMEDA COUNTY Wind farms to spare the birds 2,500 turbines in Altamont Pass to stop for winter migration
Jim Herron Zamora,
San Fransciso Chronicle Staff Writer
Friday, September 23, 2005
Half of the 5,000 windmills in the Altamont Pass will be closed for three months this winter to protect migratory birds under a plan that Alameda County supervisors adopted Thursday, over protests from environmentalists who said all the turbines should be closed for the season.
The move marked the first time during a 24-year dispute at the world's largest wind farm that the county board and windmill owners have agreed to shut down some of the wind turbines to protect birds. The board had approved an earlier version of the plan in July.
On Thursday, supervisors voted 4-1, with Supervisor Gail Steele opposed, to renew the operating permits for the wind farms, but only under new restrictions designed to reduce the number of birds that turbines kill each year, which is about 4,700.
The new plan is a compromise that will close half the turbines every year during the winter migratory season, when more birds are traveling through the Altamont Pass. The winter months are also when the least wind is generated, operators said.
"These are creative and meaningful conditions," said Supervisor Scott Haggerty, whose southeast county district includes the Altamont Pass. "These new conditions go further than anyone would have thought. This is fair place to start coming up with a balance."
Under the plan, half the turbines will not be spinning from Nov. 1 through the end of February. About 2,500 windmills will be shut down in November and December, then turned back on while the other 2,500 will be closed down in January and February. Between 100 and 200 older turbines that are considered the worst offenders will be turned off permanently.
The county and the wind power companies also agreed to conduct a series of studies to see which turbines kill the most birds and see how they can reduce deaths.
The Altamont wind turbines, first erected in the 1970s, provide enough energy to power about 120,000 homes. But the turbines also sit along the Pacific Flyway -- the main route for the winter migration of birds.
More birds are killed at Altamont Pass than any other wind-power area in the nation. These include about 500 raptors such as golden eagles, red-tailed hawks and burrowing owls, according to studies by the California Energy Commission. The hills and mountains near the pass are one of the world's largest nesting grounds for golden eagles, a federally protected species.
Wind turbine operators said they are willing to live with the new restrictions even though it will cut their revenue by 10 percent, said Rick Koebbe, president of Altamont Winds Inc., one of the larger producers.
"This will affect our business, but we are happy to work to reduce bird deaths," Koebbe said.
But environmentalists and state Attorney General Bill Lockyer wanted the board to go further and shut down all the wind turbines from November to February until they can be replaced by newer models that are less likely to kill bald eagles and other birds.
"After 20 years of doing nothing, we needed the board to hit a home run. Instead, they hit a bloop single," said Jeff Miller of the Center for Biological Diversity. "It's great that the board is finally doing something. But the question is: Is this enough? We don't think it is."
Miller's group is one of several environmental organizations that have a lawsuit against the wind farm operators that is pending in Alameda County Superior Court. Lockyer agreed to review the underlying legal issues at the request of Judge Ronald Sabraw, who is presiding over the lawsuit.
In July, Lockyer's office wrote a letter urging the board to go further and adopt many recommendations to reduce bird deaths proposed by the Center for Biological Diversity and the Audubon Society. No representative from his office attended Thursday's board meeting, and no one was available for comment afterward.
Environmentalists said they may sue the county over the new regulations, which they said are in violation of state laws governing planning and wildlife.
"Altamont Pass never would have been built if we had known how critical that site is," said Elizabeth Murdock, executive director of the Golden Gate Audubon Society. "That project never would have gotten through the approval process."
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2005/09/23/BAGCVES7RS1. DTL
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| « Last Edit: Sep 27th, 2005, 11:51am by HKBWS Project » |
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Bob Thompson
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Re: Birds and Wind Power 風力發電對雀鳥的影響
« Reply #5 on: Sep 27th, 2005, 1:48pm » |
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HKBWS Project, Keep up the good work
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