Wind Turbines

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Anaxagoras
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Re: Wind Turbines

Post by Anaxagoras » Thu Dec 27, 2018 2:37 pm

Witness wrote:
Sun Dec 23, 2018 1:58 am
New offshore windfarms push UK renewables to record

Green energy provided almost a third of electricity between July and September

Major new offshore windfarms connecting to the grid pushed renewables to 33.1% of electricity generation across the quarter, up from 30% the year before.
Real progress! :WooHoo:

Or is it really?

Did the increase in energy production by renewables translate into an equivalent reduction in the burning of fossil fuels?
Global carbon emissions reached an all-time high in 2018, an extraordinary watermark in Earth’s history that underscores the need for faster and stronger action to address accelerating climate change, according to dozens of scientists.
No doubt all Trump's fault for pulling the US out of the Paris climate agreement.
A report released yesterday by a consortium of researchers known as the Global Carbon Project finds that global carbon dioxide emissions from burning fossil fuels are likely to have increased by about 2.7 percent in 2018, after a 1.6 percent increase in 2017.

The rise comes after a three-year period in which emissions remained mostly flat—providing hope to some climate activists that global carbon emissions had reached their peak. The increases in 2017 and 2018 seem to suggest otherwise.
So I am now just starting to get a little bit skeptical of stories like this.

Yes, it may be true that the wind farms are producing more electricity than last year, but is all of the electricity being produced displacing the burning of fossil fuels that would otherwise produce the same electricity? :notsure:
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Witness
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Re: Wind Turbines

Post by Witness » Sat Feb 23, 2019 1:37 am

Record amount of new wind capacity financed in Europe last year - industry

LONDON (Reuters) - The amount of future new wind capacity in Europe financed last year rose to a record high, industry group WindEurope said on Thursday, as falling costs and increased competition made it possible for investors to fund more for less cash.

In total, 16.7 gigawatts (GW) of projects reached a final investment decision - 12.5 GW onshore and 4.2 GW offshore - 45 percent more than in 2017, WindEurope said in its annual report.

Funding for the new investments rose to 26.7 billion euros (23.2 billion pounds). Even though 45 percent more future capacity was invested in, the amount spent on the investments was 20 percent more than a year earlier, a sign that costs continue to fall.

“Cost reductions across the industry’s value chain and increased industry competition have made it possible for investors to finance more capacity for less cash,” it said.

The cost of generating electricity from wind power fell to 1.59 million euros per megawatt (MW) in 2018 from 1.93 million euros/MW in 2017, WindEurope said.

However, the report distinguishes between finance for future projects over the next few years and farms actually installed, saying the amount of capacity newly installed last year fell.

“Last year was the worst year for new wind energy installations since 2011 ... 12 EU countries didn’t install a single wind turbine last year,” said WindEurope’s chief executive Giles Dickson.

In the 28 European Union member nations plus Switzerland, Norway and Turkey, the amount of capacity added last year was 11.7 gigawatts (GW), 32 percent less than in 2017, due to poorly designed auctions and issues with permits, the report said.
https://uk.reuters.com/article/uk-europ ... newsletter

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Re: Wind Turbines

Post by Witness » Sun Apr 07, 2019 2:43 am

Europe Stores Electricity in Gas Pipes

Converting excess wind and solar power into hydrogen can extend renewable energy’s reach

Last month Denmark’s biggest energy firm, Ørsted, said wind farms it is proposing for the North Sea will convert some of their excess power into gas. Electricity flowing in from offshore will feed on-shore electrolysis plants that split water to produce clean-burning hydrogen, with oxygen as a by-product. That would supply a new set of customers who need energy, but not as electricity. And it would take some strain off of Europe’s power grid as it grapples with an ever-increasing share of hard-to-handle renewable power.
[…]
European power equipment manufacturers, anticipating a wave of renewable hydrogen projects such as Ørsted’s, vowed in January that all of their gas-fired turbines will be certified by next year to run on up to 20 percent hydrogen, which burns faster than methane-rich natural gas. The natural gas distributors, meanwhile, have said they will use hydrogen to help them fully de-carbonize Europe’s gas supplies by 2050.
[…]
Europe already has more than 45 demonstration projects to improve power-to-gas technologies and their integration with power grids and gas networks. The principal focus has been to make the electrolyzers that convert electricity to hydrogen more efficient, longer-lasting and cheaper to produce.

The projects are also scaling up the various technologies. Early installations converted a few hundred kilowatts of electricity, but manufacturers such as Siemens are now building equipment that can convert 10 megawatts, which would yield enough hydrogen each year to heat around 3,000 homes or fuel 100 buses, according to financial consultancy Ernst & Young.

The improvements have been most dramatic for proton-exchange membrane electrolyzers, which are akin to the fuel cells used in hydrogen vehicles (but optimized to produce hydrogen rather than consume it). The price of proton-exchange electrolyzers has dropped by roughly 40 percent during the past decade, according to a study published in February in Nature Energy. They are also five times more compact than older alkaline electrolysis plants, enabling onsite hydrogen production near gas consumers, and they can vary their power consumption within seconds to operate on fluctuating wind and solar generation.
https://www.scientificamerican.com/arti ... gas-pipes/ for details.

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Witness
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Re: Wind Turbines

Post by Witness » Sun Apr 21, 2019 10:54 pm

Without offshore:

Image
Rankings were determined by multiplying the average wind speed (knots) by the percent of land capable of holding wind turbines.
Source: https://old.reddit.com/r/dataisbeautifu ... fficiency/

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Bruce
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Re: Wind Turbines

Post by Bruce » Sun Apr 21, 2019 11:20 pm

Makes sense. The entire county in Ohio that I grew up in is red, and they already cover half the county.
Such potential!

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Re: Wind Turbines

Post by Witness » Tue Apr 30, 2019 1:29 am

The UK now has the most offshore wind turbine capacity in the world, 34% of the entire planet.

Image

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Re: Wind Turbines

Post by Abdul Alhazred » Tue Apr 30, 2019 1:33 am

Iinky-pooh? :)
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Re: Wind Turbines

Post by gnome » Tue Apr 30, 2019 1:36 am

"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
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Re: Wind Turbines

Post by Abdul Alhazred » Tue Apr 30, 2019 1:38 am

:HoppingMad: :HoppingMad2:
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Re: Wind Turbines

Post by Bruce » Tue Apr 30, 2019 2:14 am

Forget the Middle east. I say we invade Europe for their rich supply of natural wind energy. :propeller: :propeller: :propeller:
Such potential!

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Re: Wind Turbines

Post by Anaxagoras » Thu May 09, 2019 4:26 am

Image
"The Energiewende — the biggest political project since reunification — threatens to fail," reports Germany's largest news magazine. Der Spiegel
The Reason Renewables Can't Power Modern Civilization Is Because They Were Never Meant To
Over the last decade, journalists have held up Germany’s renewables energy transition, the Energiewende, as an environmental model for the world.

“Many poor countries, once intent on building coal-fired power plants to bring electricity to their people, are discussing whether they might leapfrog the fossil age and build clean grids from the outset,” thanks to the Energiewende, wrote a New York Times reporter in 2014.

With Germany as inspiration, the United Nations and World Bank poured billions into renewables like wind, solar, and hydro in developing nations like Kenya.

But then, last year, Germany was forced to acknowledge that it had to delay its phase-out of coal, and would not meet its 2020 greenhouse gas reduction commitments. It announced plans to bulldoze an ancient church and forest in order to get at the coal underneath it.

After renewables investors and advocates, including Al Gore and Greenpeace, criticized Germany, journalists came to the country’s defense. “Germany has fallen short of its emission targets in part because its targets were so ambitious,” one of them argued last summer.

“If the rest of the world made just half Germany’s effort, the future for our planet would look less bleak,” she wrote. “So Germany, don’t give up. And also: Thank you.”

But Germany didn’t just fall short of its climate targets. Its emissions have flat-lined since 2009.

Now comes a major article in the country’s largest newsweekly magazine, Der Spiegel, titled, “A Botched Job in Germany” ("Murks in Germany"). The magazine’s cover shows broken wind turbines and incomplete electrical transmission towers against a dark silhouette of Berlin.

“The Energiewende — the biggest political project since reunification — threatens to fail,” write Der Spiegel’s Frank Dohmen, Alexander Jung, Stefan Schultz, Gerald Traufetter in their a 5,700-word investigative story (the article can be read in English here).
A fool thinks himself to be wise, but a wise man knows himself to be a fool.
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Re: Wind Turbines

Post by Abdul Alhazred » Thu May 09, 2019 1:03 pm

Progress means one unsustainable development after another.

That said, no reason wind farms can't be part of the mix.

In Illinois, it works fine in large rural areas.

https://en.wikipedia.org/wiki/List_of_p ... n_Illinois
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Re: Wind Turbines

Post by Witness » Fri May 10, 2019 3:35 am

↑↑ Interesting.

On the other hand:
Bosch sets goal of being carbon neutral by 2020

BERLIN (Reuters) - German automotive supplier Bosch plans to become fully carbon neutral by 2020, making it the first major industrial company to take that step, as it forecast sales would stagnate this year due to headwinds from a global downturn and trade disputes.

Bosch Chief Executive Volkmar Denner said on Thursday that rising sea levels, extreme weather conditions, drought and flooding made it imperative for companies to act without delay to stop the planet from overheating and endangering global stability.

“Climate change is not science fiction; it’s really happening,” Denner said in a statement. “If we are to take the Paris Agreement seriously, then climate action needs to be seen not just as a long-term aspiration. It needs to happen here and now.”

Manufacturing accounts for around one third of global carbon dioxide emissions, according to the International Energy Agency, and Bosch said it currently emits around 3.3 million metric tons of C02 emissions every year.

The Stuttgart-based company aims to achieve its goal by increasing energy efficiency, expanding the share of renewables in its energy supply to as much as 40 percent, buying in more green power and offseting unavoidable CO2 emissions.

This includes financing climate protection projects such as wind power in the Caribbean or forest conservation in Africa to offset just under 40 percent of its energy consumption.
https://www.reuters.com/article/us-bosc ... reddit.com

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Re: Wind Turbines

Post by Witness » Sat Jun 01, 2019 2:37 am

Britain in two-week coal-free record

Britain has not used coal to generate electricity for two weeks - the longest period since the 1880s.

The body which manages the way electricity is generated said coal was last used at 15:12 on 17 May.

Fintan Slye, director of the National Grid Electricity System Operator (ESO), said the British record for solar power had also been broken this month.

Britain broke the record for a week of no coal earlier this month, which Mr Slye said would be a "new normal".

The government plans to phase out the UK's last coal-fired plants by 2025 to reduce carbon emissions and Mr Slye said there was "still a lot of work to do".

But he added: "As more and more renewables come onto the system, we're seeing things progress at an astonishing rate."

The world's first centralised public coal-fired generator opened in 1882 at Holborn Viaduct in London.
https://www.bbc.com/news/business-48473259

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Re: Wind Turbines

Post by ceptimus » Sat Jun 01, 2019 9:03 am

I worked on the conversion of Lynemouth power station from burning coal into burning wood pellets. The wood pellets are officially classified as green, so the station now runs flat out 24/7 supplying base load, even at times of low demand when wind turbines are parked because their energy is not needed.

The tragedy is that the wood pellets are imported from North America's west coast. The carbon burned harvesting, processing, and transporting the fuel isn't taken into account when calculating the carbon footprint. Also there are big questions about the sustainability of cutting down mature trees and burning them to make electricity - no matter where in the world, and under what regulatory system those trees are felled.

The Czech company that owns and operates the power station doesn't care - targets are officially being met and the company is able to claim a £1m per day government subsidy for producing all that lovely "clean" energy.

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Re: Wind Turbines

Post by Doctor X » Sat Jun 01, 2019 9:36 am

Why do you hate the planet, ceptimus?

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Re: Wind Turbines

Post by ed » Sat Jun 01, 2019 10:14 am

I think he should be banned
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Re: Wind Turbines

Post by Abdul Alhazred » Sat Jun 01, 2019 1:16 pm

ceptimus wrote:
Sat Jun 01, 2019 9:03 am
I worked on the conversion of Lynemouth power station from burning coal into burning wood pellets. The wood pellets are officially classified as green, so the station now runs flat out 24/7 supplying base load, even at times of low demand when wind turbines are parked because their energy is not needed.

The tragedy is that the wood pellets are imported from North America's west coast. The carbon burned harvesting, processing, and transporting the fuel isn't taken into account when calculating the carbon footprint. Also there are big questions about the sustainability of cutting down mature trees and burning them to make electricity - no matter where in the world, and under what regulatory system those trees are felled.

The Czech company that owns and operates the power station doesn't care - targets are officially being met and the company is able to claim a £1m per day government subsidy for producing all that lovely "clean" energy.
Quincy Illinois until recently had a power plant that generated electricity by burning old tires. Finally local protests got it shut down.

You might think that even by greedy capitalist pig despoil the planet standards, it would be unprofitable to generate electricity that way.

However, they got a state subsidy because old tires were classified as "renewable". Remove the subsidy, close the plant.

There was probably some hanky-panky involved in getting the subsidy in the first place, but nobody pursued that.
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Re: Wind Turbines

Post by Witness » Thu Jun 20, 2019 2:16 am

From the US wind turbines database:

Image

Details & interactive map: https://eerscmap.usgs.gov/uswtdb/viewer ... .07/-87.97

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Re: Wind Turbines

Post by Witness » Sat Jun 22, 2019 2:45 am

This company helps clear WW II-era bombs off the sea floor to make way for wind farms

Image

Moya Cahill didn't have this kind of boom in mind 12 years ago when she co-founded PanGeo Subsea, an ocean technology company, in St. John's.

Back then, as the province approached the peak of the offshore oil boom, she imagined PanGeo's remotely operated vehicles would be used by oil companies to scan the ocean floor off the coast of Newfoundland.

But these days, they're in the North Sea, off the coast of Germany and the Netherlands, helping locate live explosives left on the bottom of the ocean after the Second World War, so they can be dug up and detonated to make way for wind farms.
[…]
Past weapons in the way of future energy

More than 50 million bombs, shells and detonators from World War II litter the floors of the Baltic and North Seas, according to official estimates. Those seas are also home to increasing offshore wind energy interests.

The unexploded ordnances, or UXOs, have injured fishermen in the area, getting snagged in fishing nets and brought to the surface and then exploding or leaking toxic substances.

They're now also a major safety hazard for workers building offshore wind turbines.
https://www.cbc.ca/news/canada/newfound ... -1.5164626