Wind power: for or against the wind?

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izentrop
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Re: Wind: for or against the wind?




by izentrop » 05/03/20, 00:48

When we look at the correspondence with the wind map, we can see that the interest of investors is the premium and not efficiency.
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Re: Wind: for or against the wind?




by GuyGadebois » 05/03/20, 21:52

izentrop wrote:When we look at the correspondence with the wind map, we can see that the interest of investors is the premium and not efficiency.

You confuse efficiency. : Lol: : Lol: : Lol:
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Re: Wind: for or against the wind?




by Ahmed » 05/03/20, 23:39

This is very excusable due to the great similarity of these two words! : Cheesy:
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Re: Wind: for or against the wind?




by sicetaitsimple » 06/03/20, 11:40

izentrop wrote:When we look at the correspondence with the wind map, we can see that the interest of investors ......


Please note, apart from geography (mountain ranges, etc.) and wind potential, there are regulations which may explain differences between regions, for example interference with radars, coastal law, or training corridors at Air Force low altitude.

But indeed Hauts de France and Grand Est are particularly busy.
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Re: Wind: for or against the wind?




by phil59 » 09/03/20, 08:18

France_Population.jpg
France_Population.jpg (399.03 KiB) Viewed 5545 times


For my region, (HDF) we can say that it follows "the populace".

Is it not in the interest of wind turbines to be in the area of ​​"electrical" needs?

Otherwise, you have to put everything in the bottom of France, where the area is most efficient! Image

Although, I wonder what would be the losses during transport?

Shave everything on the Montmartre hill, and set up propellers? ImageImage ImageImage
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hmmmmm, hmmmmmmmmmmmmm, hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhmmmmmmmmm, huh, hmmmmmmmmmmmmm.

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Re: Wind: for or against the wind?




by izentrop » 09/03/20, 09:01

The wind map should be mainly used for individual installations that lack height, it was not really a good example. : Oops:

Large wind turbines need a minimum wind of 3m / s and stall at 25m / s. They are perched high enough to exploit the slightest breeze, it is there that electricity is sold at the most expensive. https://www.futura-sciences.com/planete ... ents-1098/
On the other hand when the wind is strong, it is also strong in all Europe, as the storage is practically nonexistent, it is sold at a loss, it is the law of the market.
Very high voltage line losses are low, distance is less of a problem and as everything is interconnected, we can expect it to be distributed as close as possible.
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Re: Wind: for or against the wind?




by moinsdewatt » 29/03/20, 20:39

Update on the development of the global wind farm

published on March 27, 2020

Image
China has by far the largest wind farm in the world, with 229,6 GW of onshore wind capacity and 6,8 GW of offshore capacity installed at the end of 2019. (© Mingyang Smart Energy)

The Global Wind Energy Council (GWEC), an association representing the wind industry worldwide, published its annual report on March 25 (1). State of play.

Installed capacities, production and average load factors

In 2019, nearly 60,4 GW of wind capacity was installed worldwide (including 6,1 GW offshore), 19% more than in 2018 (50,7 GW). It is "the second best year" of development in the history of the sector (2). In total, the installed power of the global wind farm reached 651 GW at the end of 2019.

These power data must naturally be related to the associated electricity production. According to GWEC, the global wind farm generated 1 TWh in 390. This production would therefore be equivalent to nearly 2019% of annual electricity consumption worldwide (5,8).

The average load factors of wind farms worldwide are estimated by the GWEC at 23% for onshore installations and 40% for those located at sea (4).

Image

At the end of 2019, China, the United States, Germany, India and Spain together accounted for 73% of the total installed wind capacity in the world. (© Connaissance des Énergies, after GWEC)

China and the United States lead onshore facilities, Europe for offshore wind

China and the United States remain by far the largest markets in the world for onshore wind power: these two countries accounted for more than 60% of the new onshore capacity installed in 2019. It is different for offshore wind power: l Europe remains the main market for these installations (59% of new offshore capacity in 2019), ahead of the Asia-Pacific region (49% remaining).

It should be noted that wind energy in 2019 accounted for 13,4% of electricity production in the European Union (5) and for 6,3% of that in metropolitan France (6) (see pie charts below). after).

To accelerate the deployment of wind power, GWEC calls to "look beyond the LCOE" (while stressing that the costs of onshore and offshore wind energy have dropped by more than 50% on average in the last 5 years ) and to use emerging technologies such as hybrid installations (combining, for example, wind turbines, photovoltaic panels and storage systems) or the use of “green” hydrogen in order to bring new opportunities to this sector.

At the beginning of 2020, the GWEC envisaged a “record” year for the development of wind power in the world (forecast of 76 GW of new capacities). In view of the Covid-19 epidemic, the association's forecasts for the wind market during the period 2020-2024 should be revised in the second quarter of 2.

Image

Wind power is the 4th source of electricity in the European Union, as in mainland France. (© Connaissance des Énergies, after GWEC)

Sources/Notes

1 Global Wind Report 2019, GWEC, March 2020.
2 According to GWEC, the global wind farm has greatly benefited from developed market mechanisms, with in particular significant use of auction systems.
3 Based on the IEA consumption forecast for 2019 of 240 TWh.
4 As a reminder, the IEA had estimated in a report published in October 2019 that offshore wind power had, thanks to this high load factor compared to onshore installations, “the technical potential to produce more than 420 TWh per year at world level ”, equivalent to 000 times the world electricity demand estimated in 11 by the Agency.
5 The European Power Sector in 2019, Agora Energiewende and Sandbag, February 2020.
6 2019 Electric Balance Sheet, RTE, February 2020.


https://www.connaissancedesenergies.org ... ial-200327
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Re: Wind: for or against the wind?




by Juju64 » 24/04/20, 21:17

izentrop wrote:The wind map should be mainly used for individual installations that lack height, it was not really a good example. : Oops:

Large wind turbines need a minimum wind of 3m / s and stall at 25m / s. They are perched high enough to exploit the slightest breeze, it is there that electricity is sold at the most expensive. https://www.futura-sciences.com/planete ... ents-1098/
On the other hand when the wind is strong, it is also strong in all Europe, as the storage is practically nonexistent, it is sold at a loss, it is the law of the market.
Very high voltage line losses are low, distance is less of a problem and as everything is interconnected, we can expect it to be distributed as close as possible.


The news no longer stall necessarily above 25km / h (or more), the blades are oriented so as to limit the speed of rotation (by reducing the efficiency. Thus they remain at their maximum electrical power beyond 25km / h It is only if it is a gusty wind and too variable orientation that we stop them
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Re: Wind: for or against the wind?




by A.D. 44 » 25/04/20, 10:01

Juju64 wrote:
izentrop wrote:The wind map should be mainly used for individual installations that lack height, it was not really a good example. : Oops:

Large wind turbines need a minimum wind of 3m / s and stall at 25m / s. They are perched high enough to exploit the slightest breeze, it is there that electricity is sold at the most expensive. https://www.futura-sciences.com/planete ... ents-1098/
On the other hand when the wind is strong, it is also strong in all Europe, as the storage is practically nonexistent, it is sold at a loss, it is the law of the market.
Very high voltage line losses are low, distance is less of a problem and as everything is interconnected, we can expect it to be distributed as close as possible.


The news no longer stall necessarily above 25km / h (or more), the blades are oriented so as to limit the speed of rotation (by reducing the efficiency. Thus they remain at their maximum electrical power beyond 25km / h It is only if it is a gusty wind and too variable orientation that we stop them


25km / h ... or 7m / s, it's a very light wind, isn't it?
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Re: Wind: for or against the wind?




by Juju64 » 25/04/20, 15:07

Not that much, and then we do not size a nominal wind turbine with a wind which arrives 10% of the time but with a wind which arrives much more often of the time.
Basically and I invent:
    90% of the time a wind of more than 10km / h
    80% of the time a wind of more than 15km / h
    70% of the time a wind of more than 20km / h
    60% of the time a wind of more than 25km / h
    50% of the time a wind of more than 35km / h
    10% of the time a wind of more than 60km / h

The important thing is to understand the shape of the monotonous and how we dimension to make the installation profitable on its best performance.

Some sources for medium winds
https://www.meteociel.fr/obs/classement.php?mode=11&all=1
http://hmf.enseeiht.fr/travaux/bei/beiere/book/export/html/1225 (work on offshore and sizing)
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