Wind power: for or against the wind?

Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, energy from the sea, hydraulic and hydroelectricity, biomass, biogas, deep geothermal energy ...
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Re: Wind: for or against the wind?




by lilian07 » 05/01/18, 22:52

Incredible ... could be an oscillation, because the nacelle and its 7 ton blades are already 45 tons in the air ... if it starts to oscillate for reasons of strange wind and "well" we are in the probability of the 10 exponent -12 ... the inexplicable trick by static 3D sizing calculations.
a little bit of material fatigue, an imperfect weld and the unique accident ....
When I think of a latest generation VESTAS 185 (9,5 MW) and 18 GWh / year with its 80 m blades for 35 Tons each and a platform height greater than the Montparnasse Tower it scares but it does not fall ....
We are soon announcing offshort wind turbines up to 15 MW (blades over 100m long ...) incomprehensible to me.
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Re: Wind: for or against the wind?




by moinsdewatt » 01/03/18, 22:24

(France) Onshore wind power: sharp drop in prices for future installations

By AFP the 28.02.2018

The price of electricity produced by future onshore wind turbine installations will be "significantly lower" than the previous purchase price, according to the first results of a call for tenders released on Wednesday by the government, illustrating the growing competitiveness of energies renewable.

"The results are unambiguous: the maturity and competitiveness of onshore wind and more generally renewable energies are a reality," said the Minister for Ecological and Inclusive Transition Nicolas Hulot, quoted in the press release.

Twenty-two winners were selected to install onshore wind turbines with a total capacity of 500 megawatts (MW) and a weighted average price of 65,40 euros per megawatt hour. The last purchase price, defined in 2017, was set by order at 72 euros / MWh and only concerns installations of less than 18 MW.

For Marion Lettry, Deputy General Delegate of the Syndicate of Renewable Energies (SER), these results demonstrate that wind energy "can take an important place in the French energy mix", at a time when the government is working on multi-annual energy programming (PEE), roadmap of energy ambitions for the coming years.

The 500 MW allocated on Wednesday represents only the first wave of a global 3 GW tender which is to be spread over three years.

This procedure is a first for the sector since the modification of the support mechanism for onshore wind power in France, which occurred last year.

Previously, the electricity thus produced was purchased by EDF at a rate defined by the public authorities. Now, it will be sold at the market price, to which will be added a guaranteed additional salary for twenty years, the candidates claiming the lowest supplement being privileged.

A third of the projects will also benefit from a bonus for having been the subject of crowdfunding.

- "Need for stability" -

These results "will lead the government to favor this procedure (call for tenders) for future projects by redefining the scope of projects eligible for support in the form of call for tenders and purchase price" (the former less competitive system NDLR).

For the SER as for France wind energy, the association which brings together the industrialists of the sector, this announcement is a "bad signal" sent to the sector.

"We want things to be done gradually and in concert with the sector," said Ms. Lettry, deeming "important to maintain these two systems to ensure harmonious development of wind power throughout the country", and not confined to the windiest or most accessible regions.

"The players need stability," added France wind energy, adding that the current regulations were just one year old. According to the association, extending the tendering system to smaller facilities risks "jeopardizing a certain number of projects".

These criticisms follow the more favorable reactions of mid-January, when Mr. Hulot had unveiled measures to lift the brakes on onshore wind.

Among the ten measures then presented were notably the modification of the distribution of tax benefits, by increasing the share which belongs to the municipalities hosting wind turbines, and the abolition of a level of jurisdiction for appeals, which will be directly dealt with by the administrative courts. call.

In 2017, 1.797 MW of wind power were connected to the grid according to the "Panorama of renewable electricity" published in early February. "It's the best year ever," reacted to AFP Jean-Louis Bal, president of the SER.

https://www.sciencesetavenir.fr/nature- ... ons_121670
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Re: Wind: for or against the wind?




by sen-no-sen » 17/04/18, 20:56

Aude: wind turbines butt on the last breath of a Zad

Besides the emblematic Notre-Dame-des-Landes, other “areas to defend” (Zad) are open in France. In Aude, Bouriège and Tourreilles, a more confidential challenge, with an uncertain future, is delaying the construction of a wind farm.

Elected officials and local authorities, local opponents on the brink of rupture, and a handful of zadists in the expectation, positioned below a winding site, this is the scene of the construction of 6 wind turbines initiated there are almost fifteen years. The Aude villages of Bouriège, 130 inhabitants, and Tourreilles, 125 inhabitants, at the gates of Limoux, have only a distant family resemblance with Notre-Dame-des-Landes, the emblematic “area to defend”. The birth of a small wind farm on the wind carrying green energy is less fearful than an airport designed to take off a region


http://www.midilibre.fr/2018/02/04/aude-des-eoliennes-buttent-sur-le-dernier-souffle-d-une-zad,1623619.php

A somewhat micro-pavement subject but which gives an overview of future more or less civic oppositions against ecological transition projects ... and which refers us to our contradictions.
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Re: Wind: for or against the wind?




by Adrien (ex-nico239) » 18/04/18, 16:09

Yes, we wonder why we promote it so much since nobody wants it ..... at his place (at the neighbor's, no problem, however). : Mrgreen:
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Re: Wind: for or against the wind?




by sen-no-sen » 18/04/18, 19:48

General Electric, the energy company, has announced plans to start manufacturing a 12 MW wind turbine. It will be the most powerful machine in the matter. Called Haliade-X, it will peak at 260 meters in height, and will be composed of a rotor of 220 meters, blades 107 meters long and will have a swept area of ​​38.000 m2. These characteristics should give it a load factor 5 to 7 points above the turbines currently available on the market.

https://www.actu-environnement.com/ae/news/general-electric-eolienne-haliadex-30758.php4

Soon the height of the Eiffel Tower?

Interesting to note once again that the laws of statistical mechanics apply to the wind sector, from a strategy r (many small wind turbines) developed by startups we are now moving on to a strategy K (very large devices) carried by the monopolies of industry and energy.
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Re: Wind: for or against the wind?




by moinsdewatt » 07/05/18, 21:34

Mingyang Installs "Largest Typhoon Resistant Wind Turbine"

Published 07 / 05 / 2018 lemarin.fr

“The world's largest typhoon resistant wind turbine. This is how Mingyang wind power qualifies its new MySE.5-155 wind turbine.

The 5,5 MW turbine has just been installed off the coast of Fujian Province in China. It is the first of two Mingyang wind turbines to join Fujian Xinghua gulf's 79,4 MW offshore wind farm, local media said. According to Mingyang, the turbine design is inspired by the aerospace industry. It is lighter and smaller in size than other wind turbines of similar capacity. The length of its blades is 76,60 meters.

The hurricane season in China runs from June to October. The risk of typhoon is particularly high in the south of the country.

Image
The 5,5 MW capacity wind turbine is expected to withstand cyclones. (Photo: Mingyang wind power)

http://www.lemarin.fr/secteurs-activite ... contre-les
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Re: Wind: for or against the wind?




by moinsdewatt » 20/05/18, 14:14

British wind turbines supplied more electricity in the 1st quarter of 2018 than their 8 nuclear power plants!
Or 18.8% of Q1 electricity production, in second position behind Gas


Wind power overtakes nuclear for first time in UK across a quarter

May 16, 2018 evwind

Britain's windfarms provided more electricity than its eight nuclear power stations in the first three months of 2018, marking the first time wind has overtaken nuclear across a quarter.

The renewable energy industry hailed the milestone as a sign the UK was well on its way to an electricity system powered by cheap, domestic green energy.

Across the first quarter, wind power produced 18.8% of electricity, second only to gas, said a report by researchers at Imperial College London.

At one point overnight on 17 March, wind turbines briefly provided almost half of the UK's electricity. Wind power helped during the cold snaps, too, supplying 12-43% of electricity during the six subzero days in the first three months of the year.

Two nuclear plants were temporarily offline for routine maintenance, while another was shut down because of seaweed in the cooling system.
................

https://www.evwind.es/2018/05/16/wind-p ... rter/63447
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Re: Wind: for or against the wind?




by moinsdewatt » 31/05/18, 15:05

A wind turbine destroyed by lightning. in UK.

£ 1m wind turbine bursts into flames after lightning strike

30 May 2018

Image

Fire crews are at the scene of the blaze at Ransonmoor wind farm, near Doddington, following the lightning strike in the early hours of the morning.

Former fireman David Oldale, who woke up to receive a phone call from his daughter who lives in a farm house next door to the wind turbine, said: “I would leave it, it's too dangerous, I'd let it go.

“It started in the motor room where the turbine is at several hundred feet.

“It's gradually burning down the tower; all the bits are dropping off.

“The fire crews are still here and I think they are going to let it burnt out, because there's nothing else they can do really.”

Ransonmoor wind farm is located in the Fens of Cambridgeshire. The Fenpower project generates enough power each year to supply the electricity needs of 6,600 UK homes and contributes annually to a community benefit fund to support a variety of valuable local initiatives.

http://www.edp24.co.uk/news/fens-wind-t ... -1-5539825

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http://www.itv.com/news/anglia/2018-05- ... idgeshire/
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Re: Wind: for or against the wind?




by moinsdewatt » 15/06/18, 19:53

Valorem inaugurates its new wind farm in the Tarn

MARINA ANGEL on 15/06/2018 Nouvelel factory

Renewable energy operator Valorem inaugurates its new wind farm in Albine, in the Tarn region. An investment of 29 million euros for an installed capacity of 16 MW.

Image
The new wind farm in Albine: a set of eight wind turbines, erected on a line of just over 1,5 kilometers for a total cumulative power of 16 MW.

The Valorem group, headquartered in Bègles (Gironde), inaugurated on Friday June 15 its new wind farm in Albine, in the Tarn: a set of eight wind turbines, erected on a line of just over 1,5 kilometers, on municipal land, for a total cumulative power of 16 MW. The operation, which was started in July 2016, required a total investment of 29 million euros. This is the second wind farm put into service by Valorem in the Tarn, after the connection in 2009 of a park in Arfons, which has 11 wind turbines with a power of 22 MW.

New projects in Aude, Haute-Garonne, Tarn and Tarn-et-Garonne.

For Albine Park, it took more than 17 years of perseverance. The first studies for the establishment of this wind farm date back to the early 2000s and administrative authorizations were obtained in 2007. But that was without counting the numerous appeals which postponed the launch of the project for almost 10 years . Not enough to discourage Valorem, which plans to launch a new site in 2019 in the Limoux sector, in the Aude, for a set of 12 wind turbines (45 million euros planned for a total power of 28 MW). In the process, two other projects would already be scheduled for 2020, one in the Tarn and the second in the Tarn-et-Garonne.

At the same time, the Gironde company, engaged for ten years in a diversification towards other renewable energies (small hydroelectricity, photovoltaic, methanization ...), is also preparing to launch, in July 2018, two new projects of ground-based solar parks in Occitania, one in Alzonne, in Aude, for 4 MWp (4,5 million euros) and the second in Noé, in Haute-Garonne, for 2,5 MWp (3 million euros). "We are also awaiting the results of CRE's next call for projects, scheduled for next July, for two other solar parks, of 5 MWp each, which we wish to build, one in Haute-Garonne and the other in Tarn-et-Garonne ", confides Frédéric Petit, manager of the Valorem agency in Carcassonne (Aude), in charge of projects in the Occitanie region.

Valorem achieved a turnover of 74,5 million euros in 2017 and employs a little more than 200 employees, with three agencies in Carcassonne, Amiens (Somme) and Nantes (Loire-Atlantique), two maintenance centers in Caen (Calvados) and Reims (Marne) and an establishment in Guadeloupe.


https://www.usinenouvelle.com/article/v ... rn.N707419
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Re: Wind: for or against the wind?




by izentrop » 17/07/18, 22:11

Beginning of an announced catastrophe
OSLO (Reuters) - Sweden will have to import more electricity in winter as the country, a net exporter of electricity to the rest of Europe, switches from nuclear to wind, said its network operator.
Last winter, the first since the shutdown of its Oskarshamn 1 reactor, depleted Sweden's resources as peak consumption increased by 800 megawatts (MW), triggering start-up procedures in its reserve power plants.

Sweden's energy balance will deteriorate further from next winter, the country will need imports and the situation will worsen with the closure of two more reactors by 2020, Svenska Kraftnat (SVK) announced on Monday ) in a report.

"For next winter (if it's a normal winter), Sweden is expected to import 400 MW more than it exports during the hour with the highest consumption," said Erik Hellstrom, power system analyst by SVK. Reuters.

Hellstrom said that if the coming winter is a "10 year winter" (colder than a normal winter), imports from Sweden will increase up to 1500 MW more than exports within the hour with the highest consumption.

Of Sweden's eight remaining nuclear reactors, two will close soon, Ringhals 2 in 2019 and Ringhals 1 the following year, cutting a combined production of 1700 MW from its electricity grid, 40% of which depends on nuclear production.

"Wind power cannot contribute to energy balance during peak winter hours with the same availability as the nuclear power it replaces," SVK said. https://www.reuters.com/article/us-swed ... SKBN1JS1GL
Jancovici has said for a long time that wind power cannot meet winter demand.
Nuclear power will for a long time remain the safest and least dangerous solution.
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