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Wind matters

dspp
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Re: Wind matters

#306326

Postby dspp » May 7th, 2020, 9:55 am

dspp wrote:
dspp wrote:Big crane failure.

At the end of the video you see a barge in the water alongside the ship. That barge is what was the 5500 t test weight. The video starts at some point after the near vertical jib recoils from the rope/hook break, and what you see is the jib going backwards over the top. The injuries (one still in hospital) were in the crane control cab, which is next to where the hook ends up.

sobering 24 sec video
https://www.energypeople.com/news/story ... se---video

good german acct
https://www.ndr.de/nachrichten/mecklenb ... an156.html

regards, stay safe, dspp


Sounds like the injuries are minor. Hook failure seems to be the cause. Replacement crane needed PDQ.
https://www.offshorewind.biz/2020/05/05 ... 2020-05-06
https://www.offshorewind.biz/2020/05/05 ... 2020-05-06
- dspp


It was the crane hook which broke during a proof load test.
https://www.offshorewind.biz/2020/05/06 ... 2020-05-07
- dspp

dspp
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Re: Wind matters

#306686

Postby dspp » May 8th, 2020, 12:34 pm

EU consultation on renewables financing
https://www.offshorewind.biz/2020/05/07 ... 2020-05-08

- dspp

dspp
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Re: Wind matters

#307853

Postby dspp » May 12th, 2020, 9:13 am

Humongous monopiles for 15MW, 65m water depth
"These requirements lead to monopile designs with bottom diameters between 8 and 11 metres, lengths of up to 120 metres and wall thicknesses up to 150 millimetres. The final weight of such monopiles can reach up to 2,400 tonnes."
https://www.offshorewind.biz/2020/05/11 ... 2020-05-12
- dspp

dspp
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Re: Wind matters

#310253

Postby dspp » May 20th, 2020, 1:35 pm

Third 8MW floater on its way, 25MW in all, - Iberia
https://www.offshorewind.biz/2020/05/19 ... 2020-05-20

(floaters are getting big !)

Siemens now offering 15MW turbines
the new turbine model has a 14 MW capacity, reaching up to 15 MW using the company’s Power Boost function, a 222-metre diameter rotor, 108-metre long blades, and a 39,000 m2 swept area.
https://www.offshorewind.biz/2020/05/19 ... 2020-05-20

(turbines are getting big)

(both will go together)

- dspp

Nimrod103
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Re: Wind matters

#311670

Postby Nimrod103 » May 24th, 2020, 8:41 am

https://www.telegraph.co.uk/news/2020/0 ... -turbines/

You think you only pay for power, and then you realize you have to pay for no power as well, because of the way the contracts have been written in the generators' favour.

dspp
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Re: Wind matters

#311694

Postby dspp » May 24th, 2020, 10:10 am

Nimrod103 wrote:https://www.telegraph.co.uk/news/2020/05/23/wind-farms-paid-record-93m-switch-turbines/

You think you only pay for power, and then you realize you have to pay for no power as well, because of the way the contracts have been written in the generators' favour.


This applies to a lot of power stations, irrespective of what sort of fuel they run on.

dspp
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Re: Wind matters

#318484

Postby dspp » June 15th, 2020, 9:15 am

"Saitec Offshore Technologies and the Biscay Marine Energy Platform (BiMEP) open sea test site have signed a contract to install the DemoSATH floating wind turbine off the Basque Coast, Spain.

The project will test the very first floating wind foundation connected to the Spanish grid using SATH Technology."


(SATH = Swinging Around Twin Hull, it definitely is not a SWATH, small water surface area twin hull, so indeed this will be interesting to watch)

https://www.offshorewind.biz/2020/06/12 ... 2020-06-15

dspp
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Re: Wind matters

#324239

Postby dspp » July 7th, 2020, 9:01 am

Germany pushing harder,

"German Federal Council (Bundesrat) has called for the country’s offshore wind ambitions to be raised, with a target for 2035 to be set at 30 GW, in a resolution from its last meeting before the summer break..... To improve the expansion conditions for renewable energies at sea, changes in the Offshore Wind Act (WindSeeG) are required, the Council states, including raising the offshore wind expansion target to 30 GW by 2035. Then the authorities responsible for further specialist planning, ...... can legally initiate the long-term planning."

https://www.offshorewind.biz/2020/07/06 ... 2020-07-07

https://www.offshorewind.biz/2020/07/06 ... 2020-07-07

(Similar strong moves worldwide to scale up considerably)

- dspp

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Re: Wind matters

#327886

Postby dspp » July 22nd, 2020, 10:40 am

"Study: Supersized wind turbines could deliver $4-5/MWh more in grid benefits"

https://www.renewableenergyworld.com/20 ... ews_letter

to be honest I don't see anything new in this study, but it does correctly describe the industry pathway

- dspp

dspp
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Re: Wind matters

#328204

Postby dspp » July 23rd, 2020, 2:09 pm

Japan firing starting gun on massive offshore floating wind

"Japanese government is drafting a bill that would facilitate identifying new development sites for 1 GW of installed offshore wind capacity per year from 2021 to 2031.

“Japan is set to draft new rules and support framework in a drive that points to construct offshore wind projects at 30 locales by the end of the next decade”, GlobalData, a data and analytics company, writes.

With three or four project sites identified each year, starting from April 2021 until 2030/2031, a total of 10 GW of potential generation sites are expected to be identified for further development by the end of the next decade."

https://www.offshorewind.biz/2020/07/22 ... 2020-07-23

And they are off. But unlike the UK, these will be made in Japan. They will start at 1GW/yr and ramp aggressively. These will be predominantly 10MW+ floaters.

- dspp

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Re: Wind matters

#328214

Postby 1nvest » July 23rd, 2020, 2:40 pm

IIRC a 400 mile sea cable is being laid over to Holland in order for their wind turbines to provide energy to the UK. Begs the question of whether another 750 mile cable might be laid between Iceland and the UK and have a source of thermal energy (pour sea water into a pipe stuck into the ground to use the resulting steam to turn turbines). Unlike wind that's obviously continual capacity of energy production.

dspp
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Re: Wind matters

#328223

Postby dspp » July 23rd, 2020, 3:22 pm

1nvest wrote:IIRC a 400 mile sea cable is being laid over to Holland in order for their wind turbines to provide energy to the UK. Begs the question of whether another 750 mile cable might be laid between Iceland and the UK and have a source of thermal energy (pour sea water into a pipe stuck into the ground to use the resulting steam to turn turbines). Unlike wind that's obviously continual capacity of energy production.


You are welcome to risk your money and engineering reputation in such a project.

I won't be.

- dspp

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Re: Wind matters

#328433

Postby scotia » July 24th, 2020, 12:22 pm

dspp wrote:
1nvest wrote:IIRC a 400 mile sea cable is being laid over to Holland in order for their wind turbines to provide energy to the UK. Begs the question of whether another 750 mile cable might be laid between Iceland and the UK and have a source of thermal energy (pour sea water into a pipe stuck into the ground to use the resulting steam to turn turbines). Unlike wind that's obviously continual capacity of energy production.


You are welcome to risk your money and engineering reputation in such a project.

I won't be.

- dspp

The (late) T J Hammons for several decades proposed such an Icelandic link. His latest (and last?) paper (2010) on the subject which I could locate is https://notendur.hi.is/~egill/rit/05650021.pdf
It proposes the undersea transfer of Icelandic hydro-power, and it also mentions geothermal generation.

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Re: Wind matters

#328440

Postby 1nvest » July 24th, 2020, 12:58 pm

scotia wrote:
dspp wrote:
1nvest wrote:IIRC a 400 mile sea cable is being laid over to Holland in order for their wind turbines to provide energy to the UK. Begs the question of whether another 750 mile cable might be laid between Iceland and the UK and have a source of thermal energy (pour sea water into a pipe stuck into the ground to use the resulting steam to turn turbines). Unlike wind that's obviously continual capacity of energy production.


You are welcome to risk your money and engineering reputation in such a project.

I won't be.

- dspp

The (late) T J Hammons for several decades proposed such an Icelandic link. His latest (and last?) paper (2010) on the subject which I could locate is https://notendur.hi.is/~egill/rit/05650021.pdf
It proposes the undersea transfer of Icelandic hydro-power, and it also mentions geothermal generation.


750 miles to Iceland, so as this Denmark UK is 475 miles and is the 'worlds longest' it would be a new record, but once laid and the wind wasn't blowing in Denmark then the UK could be back feeding energy from the Icelandic geo-thermal energy production.

When you're energy is free, clean and constant, then as a nation you're that much more competitive. Worthwhile enough for the state to 'invest/fund'.

dspp
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Re: Wind matters

#328442

Postby dspp » July 24th, 2020, 1:04 pm

scotia wrote:
dspp wrote:
1nvest wrote:IIRC a 400 mile sea cable is being laid over to Holland in order for their wind turbines to provide energy to the UK. Begs the question of whether another 750 mile cable might be laid between Iceland and the UK and have a source of thermal energy (pour sea water into a pipe stuck into the ground to use the resulting steam to turn turbines). Unlike wind that's obviously continual capacity of energy production.


You are welcome to risk your money and engineering reputation in such a project.

I won't be.

- dspp

The (late) T J Hammons for several decades proposed such an Icelandic link. His latest (and last?) paper (2010) on the subject which I could locate is https://notendur.hi.is/~egill/rit/05650021.pdf
It proposes the undersea transfer of Icelandic hydro-power, and it also mentions geothermal generation.


1nvest was proposing seawater geothermal.

Hammond was proposing freshwater geothermal.

Nevertheless I don't quibble with the fact that this would be technically a fascinating project, and economically one I would likely directly benefit from as I am in the HVDC industrial supply chain (which not many in the UK can say). My quibble is whether it is the most attractive way of delivering the objective vs the other ways. So far Norwegian hydro and UK offshore wind appears to be more attractive than Icelandic hydro/wind/geothermal.

regards, dspp

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Re: Wind matters

#328461

Postby 1nvest » July 24th, 2020, 2:27 pm

I just Googled that article and didn't really read it before posting the link. Within that linked article it does link to this https://www.theguardian.com/sustainable ... rmal-power ... so basically already in the pipeline (maybe).
Commercial interest is growing in plans to harness geothermal energy from Iceland’s magma lakes and use it to supply the UK

Wonder if cooling the earths core quicker than usual might have adverse consequences. Once the molten core solidifies I thought that the earths magnetic field died with it, and the solar radiation protection that provides along with it ???

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Re: Wind matters

#328634

Postby tramrider » July 25th, 2020, 3:04 pm

1nvest wrote:I just Googled that article and didn't really read it before posting the link. Within that linked article it does link to this https://www.theguardian.com/sustainable ... rmal-power ... so basically already in the pipeline (maybe).
Commercial interest is growing in plans to harness geothermal energy from Iceland’s magma lakes and use it to supply the UK

Wonder if cooling the earths core quicker than usual might have adverse consequences. Once the molten core solidifies I thought that the earths magnetic field died with it, and the solar radiation protection that provides along with it ???


It takes about 100 million years for a parcel of heat to move from the Earth's core up to the surface. :roll:

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Re: Wind matters

#329396

Postby dspp » July 29th, 2020, 11:49 am

"The offshore wind farms that won the Contracts for Difference (CfDs) in the latest UK CfD round will most likely be the first to operate with “negative subsidies”, even before the zero-subsidy projects awarded in auctions in the Netherlands and Germany.

According to an analysis by an international team led by Imperial College London researchers, the UK offshore wind farms that will go online from mid-2020s will be paying money back to the government and, ultimately, to consumers."


https://www.offshorewind.biz/2020/07/28 ... 2020-07-29

- dspp

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Re: Wind matters

#329460

Postby daveh » July 29th, 2020, 4:07 pm

dspp wrote:"The offshore wind farms that won the Contracts for Difference (CfDs) in the latest UK CfD round will most likely be the first to operate with “negative subsidies”, even before the zero-subsidy projects awarded in auctions in the Netherlands and Germany.

According to an analysis by an international team led by Imperial College London researchers, the UK offshore wind farms that will go online from mid-2020s will be paying money back to the government and, ultimately, to consumers."


https://www.offshorewind.biz/2020/07/28 ... 2020-07-29

- dspp


How does that work? Maybe I'm misunderstanding how CfDs work. I thought that if the wholesale price was less than the contracting price then they company was subsidised up to the contract price. I assumed if the wholesale price was higher than the contract price the company just made extra money and there was no subsidy cost to the government.

dspp
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Re: Wind matters

#329469

Postby dspp » July 29th, 2020, 4:23 pm

daveh wrote:
dspp wrote:"The offshore wind farms that won the Contracts for Difference (CfDs) in the latest UK CfD round will most likely be the first to operate with “negative subsidies”, even before the zero-subsidy projects awarded in auctions in the Netherlands and Germany.

According to an analysis by an international team led by Imperial College London researchers, the UK offshore wind farms that will go online from mid-2020s will be paying money back to the government and, ultimately, to consumers."


https://www.offshorewind.biz/2020/07/28 ... 2020-07-29

- dspp


How does that work? Maybe I'm misunderstanding how CfDs work. I thought that if the wholesale price was less than the contracting price then they company was subsidised up to the contract price. I assumed if the wholesale price was higher than the contract price the company just made extra money and there was no subsidy cost to the government.


The companies would in effect be signing up to make a (conditional) payment to build, rather than a (conditional) receipt of a payment. Just as (say) a company paying for the right to build & operate an airport or toll road, except that in this case the payments would only be made by the companies to the government if/when the wholesale price of electricity rose high enough that otherwise excess profit would be made (as opposed to being paid by the government if/when prices fell too low so as to cause a loss).

The Nature article is here ($$$) https://www.nature.com/articles/s41560-020-0661-2 .

regards, dspp


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