Wind power

Chinas Megaproject "Jiuquan" in Gansu

2011-03-21T04:26:00.001+01:00

Nach den Prognosen des Global Wind Energy Council soll bis 2012 die weltweite Kapazität installierte von Windkraft auf 240 GW verdoppelt werden.

"What's regarded as the largest wind power project in the world, the Jiuquan wind power complex in the Gansu Province, has passed a significant milestone. The first phase of the project has been completed, with the successful installation of 3500 wind turbines, totalling in 5.16 GW of capacity. Currently, this phase of the project is generating about 1.15 GW of power."1

"The installed wind power capacity of Jiuquan will jump to 5.16 GW by 2010, 12.71 GW by 2015 and 20 GW by 2020 from the current level of 660 MW, Feng said.
In the future, Jiuquan's wind power capacity could hit 40 GW, he added."2

"China, the world's second-largest energy user, has said it would bring its total wind power capacity to 100 GW by 2020 from the current 12 GW, part of a broad energy target to generate 3 percent of total electricity from non-hydro renewable energy."2

1 RENEWBL
2 Reuters

Technical terms

2010-07-24T17:57:00.012+02:00

English	German	Chinese
Active yaw control	aktive Windnachführung	主动偏航控制
Survival wind speed	Überlebenswindgeschwindigkeit	存活風速
rotate speed	Drehzahl	轉速
Restart wind speed	Neustartwindgeschwindigkeit	再啓動風速
Rated speed	Nenngeschwindigkeit	額定風速
Pitch control	Blattwinkelverstellung	變槳控制
Output voltage	Spannungsausgabe	輪出電壓
Cut out speed	Abschaltwindgeschwindigkeit	切出風速
Cut in speed	Einschaltwindgeschwindigkeit	切入風速
Cooling	Kühlung	冷劫
Blade	Rotorblatt	葉片
Watt	Watt	瓦特
Joule	Joule	焦
kWh	kWh	千瓦時
Mega	Mega	百萬
Giga	Giga	吉
Tera	Tera	兆
Peta	Peta	拍
Unit of power	Leistungseinheit	功率单位
Quantity unit	Mengeneinheit	量度單位
Rated output	Nennleistung	额定功率
Transmission	Getriebe	变速器
Spur gear	Stirnradgetriebe	正齿轮传动
Planetary gearing	Planetengetriebe	行星齿轮传动
Electrolysis	Elektrolyse	電解

Technical Data of Wind turbines

2010-07-23T18:37:00.009+02:00

Click on the Image
Image: dan / FreeDigitalPhotos.net

Numbers on Windenergy

2010-07-23T17:51:00.001+02:00

Source: EWEA (European Wind Energy Association)

Comparative noise for common activities

2010-07-23T17:08:00.001+02:00

Source/activity	Indicative noise level (dB)
Threshold of hearing	0
Rural night-time background	20-40
Quiet bedroom	35
Wind farm at 350m	35-45
Busy road at 5km	35-45
Car at 65km/h at 100m	55
Busy general office	60
Conversation	60
Truck at 50km/h at 100m	65
City traffic	90
Pneumatic drill at 7m	95
Jet aircraft at 250m	105
Threshold of pain	140

Source: CIEMAT

Statistic on the causes of bird mortality

2010-07-23T15:29:00.004+02:00

Causes of bird mortality	Annual bird mortality estimate
Buildings/windows	550 million
High tension lines	130 million
cats	100 million
Vehicles	80 million
Pesticides	67 million
Communication Towers	4,5 million
Wind turbines	28,5 thousand
Aeroplanes	25 thousand

Source: Ericksonn W., Johnson, G. and Young, D. (2005)