Talk:Wind power in China: Difference between revisions

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Untitled

This page seems internally inconsistent - it says China has 7.8 GW of power at the top and lower has 30% of the power generation as 780mw. One of these is wrong.... —Preceding unsigned comment added by 78.16.81.82 (talk) 21:58, 11 August 2009 (UTC)[reply]

The above comment is right it should be removed as it is quite a bit out of date considering that 40 GW installed capacity in 2010. EagleTusk (talk) 14:52, 16 May 2011 (UTC)[reply]

There is some apparent confusion in the units of this article, and some of the values are apparently confused as well. Confusion between the terms "annual production" and "generating capacity" apparently aggravate the issue. Generating capacity refers to the maximum instantaneous flow of power that is capable of being produced, measured in watts, or in this case, megawatts (MW). Electrical production, on the other hand, is measured in watt-hours (W-h) or gigawatt-hours (GW-h), and represents the average flow of power times the number of hours the power flowed. If a generator has a generating capacity of 1 watt (1 W), then if that generator runs for an entire year at full capacity, then it's annual production would be (365 days * 24 hours * 1 watt = ) 8,760 W-h, or 8.76 kW-h. Apparently the term "generating capacity" has been conflated with annual production, while correctly using watts instead of watt-hours. However, if the data are correct, then that would mean that China has well over 600 times (!!!) the wind generating capacity of the United States (25 GW versus 40 MW), contradicting the claim in the general wind farm article that China ranks third behind the United States and Germany in wind generating capacity. More likely, where GW are listed for "generating capacity," GW-hours and "annual production" should be substituted, unless some reliable authority can be cited to show that China has over 200 times the wind generating capacity as the rest of the world combined.

Revision as of 14:52, 16 May 2011 edit EagleTusk (talk \| contribs) 16 edits →‎Untitled ← Previous edit		Revision as of 15:25, 23 December 2011 edit undo 99.166.109.92 (talk) →‎Untitled Next edit →
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	The above comment is right it should be removed as it is quite a bit out of date considering that 40 GW installed capacity in 2010. [[User:EagleTusk\|EagleTusk]] ([[User talk:EagleTusk\|talk]]) 14:52, 16 May 2011 (UTC)		The above comment is right it should be removed as it is quite a bit out of date considering that 40 GW installed capacity in 2010. [[User:EagleTusk\|EagleTusk]] ([[User talk:EagleTusk\|talk]]) 14:52, 16 May 2011 (UTC)

			There is some apparent confusion in the units of this article, and some of the values are apparently confused as well. Confusion between the terms "annual production" and "generating capacity" apparently aggravate the issue. Generating capacity refers to the maximum instantaneous flow of power that is capable of being produced, measured in watts, or in this case, megawatts (MW). Electrical production, on the other hand, is measured in watt-hours (W-h) or gigawatt-hours (GW-h), and represents the average flow of power times the number of hours the power flowed. If a generator has a generating capacity of 1 watt (1 W), then if that generator runs for an entire year at full capacity, then it's annual production would be (365 days * 24 hours * 1 watt = ) 8,760 W-h, or 8.76 kW-h. Apparently the term "generating capacity" has been conflated with annual production, while correctly using watts instead of watt-hours. However, if the data are correct, then that would mean that China has well over 600 times (!!!) the wind generating capacity of the United States (25 GW versus 40 MW), contradicting the claim in the general wind farm article that China ranks third behind the United States and Germany in wind generating capacity. More likely, where GW are listed for "generating capacity," GW-hours and "annual production" should be substituted, unless some reliable authority can be cited to show that China has over 200 times the wind generating capacity as the rest of the world combined.