Wind Turbines

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Witness
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Re: Wind Turbines

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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.

The speed at which green energy projects are being installed has resulted in records tumbling this year. Wind power broke records during the “beast from the east”, which was eclipsed during Storm Diana last month, and again this week when wind generation hit 15GW on Tuesday.

The trend is expected to continue next year as more windfarms around the coast near completion. Initial analysis of some recently built offshore projects also shows they are generating more power than expected.

Meanwhile, gas and coal slumped to a new low of just over 41.1%, according to official statistics published on Thursday.
[…]
Low carbon sources of power, which include the country’s eight nuclear power stations, account for 56% of the UK’s electricity supply. The 50% mark was hit only two years ago.
https://www.theguardian.com/business/20 ... cord#img-1
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Re: Wind Turbines

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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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Re: Wind Turbines

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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

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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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Re: Wind Turbines

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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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Re: Wind Turbines

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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

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

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Re: Wind Turbines

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"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

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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

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"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).
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↑↑ 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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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

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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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Why do you hate the planet, ceptimus?

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I think he should be banned
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From the US wind turbines database:

Image

Details & interactive map: https://eerscmap.usgs.gov/uswtdb/viewer ... .07/-87.97
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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
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" “Germany has fallen short of its emission targets in part because its targets were so ambitious,” "

Didn't Germany shut down all it's nuke plants like a bunch of whiny little bitches after Fukushima?
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Re: Wind Turbines

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sparks wrote: Sat Jun 22, 2019 11:06 am " “Germany has fallen short of its emission targets in part because its targets were so ambitious,” "

Didn't Germany shut down all it's nuke plants like a bunch of whiny little bitches after Fukushima?
Yes. That's what the problem is, mainly.
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No!

Immigrants! Muslims! They shut down the nuclear power plants!!!11!




At least, that is what Herr Tiedemann told me. . . .

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Re: Wind Turbines

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Cue Jeff Wayne.

"No one would've believed that in the last years of the 19th century..."

And shit. :)
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Re: Wind Turbines

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Image

Bahrain.
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Re: Wind Turbines

Post by ed »

Witness wrote: Mon Jul 01, 2019 2:56 pm Image

Bahrain.
Vibrations, standing waves, concrete cracking?

Do I hate our planet?
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Re: Wind Turbines

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That is going to irritate the fuck out of everyone in the building. whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop whoop all day, every day, 24/7.
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Re: Wind Turbines

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Whoomp Whoomp Whoomp
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Re: Wind Turbines

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that was fucking sexy.
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Re: Wind Turbines

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You liked my crack????
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No. Not touching this one.

Doc?
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Men of little faith (except Abdul, who got it), you've earned a promotional video:



And it's called WTC.

:twisted:
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Re: Wind Turbines

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The rarely spinning turbines of the Strata Tower, south London

Image
When the tower was proposed, the developers claimed that the three turbines would generate 8% of the tower’s electricity needs, but seeing as the things don’t appear to have moved for months, we suspect that figure is closer to 0% most days. It seems that the posh folks living in the upper floor penthouses objected to the noise and vibration of the spinning blades.
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Re: Wind Turbines

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sparks wrote: Mon Jul 01, 2019 4:06 pmNo. Not touching this one.

Doc?
I am not sure Gram's Mom would touch it.

[Your Mom?--Ed.]

Even she has standards . . . apparently.

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I dunno. She might if you fed her enough Vodka.





Wait...
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Re: Wind Turbines

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New York passes its Green New Deal, announces massive offshore wind push

Yesterday, New York governor Andrew Cuomo signed a bill that's been described as the state's Green New Deal. Unlike the one that's been floated in Congress, this one isn't a grab-bag collection of social and energy programs. Instead, there's a strong focus on energy, with assurances that changes will be made in a way that benefits underprivileged communities.

The bill was passed by both houses of the New York legislature last month, but Cuomo held off on signing it so he could pair it with an announcement that suggests the new plan's goals are realistic. The state has now signed contracts for two wind farms that will have a combined capacity of 1.7 GW. If they open as planned in under five years, they will turn New York into the US's leading producer of offshore wind power.
https://arstechnica.com/science/2019/07 ... wind-push/ for details.
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Wind is outpacing coal as a power source in Texas for the first time

Wind power has surpassed coal for the first time in Texas, according to a new report.

The numbers cap an enormous rise in wind power in the nation's top energy-producing state over the past decades.
Wind has generated 22% of the state's electrical needs this year. It just edged out coal, which provided 21% of the Lone Star State's power, according to the Electrical Reliability Council of Texas, which manages electrical flow on about 90% of the Texan grid.

Sixteen years ago, in 2003, wind made up just 0.8% of the state's power, and coal satisfied 40% of electrical needs, the council documents show.
By 2010, wind accounted for 8% of the state's energy, and it steadily inched forward to 19% last year and now 22% in the first half of 2019.
At the same time, coal's portion of the energy mix has declined over the past several years, from 37% in 2013 to 24% last year and just 21% this year.
Yet while wind has soared and coal-generated power has cooled, natural gas still accounts for the largest share of the state's energy mix, generating 46% of its power in 2003 and staying strong at 44% last year.
https://edition.cnn.com/2019/07/25/us/t ... index.html
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Giant Turbines Propel Boom in Wind Energy

Technological advances mean the wind industry may only see a small slowdown when tax credits end

The wind industry is growing, literally. American wind developers are installing increasingly large turbines, capable of generating twice as much power as their predecessors and opening up new areas of the country to wind development.

The trend arrives at a critical time for the industry. The production tax credit, a federal subsidy, is set to end at the end of the year. But unlike in previous years, when wind development ground to a halt when subsidies dried up, industry representatives are predicting only a modest slowdown.

“We are confident we will remain one of the most competitive forms of energy,” said John Hensley, vice president of research and analytics at the American Wind Energy Association (AWEA), a trade group.

Among the reasons for the sunny outlook: improved turbine technology. Today, only six land-based projects with a combined capacity of 767 megawatts employ turbines with a generating capacity of 3.5 MW or higher. The majority of today’s turbines have a capacity between 2 and 3 MW.

Turbines with a capacity of 3.4 to 3.6 MW accounted for 14% of all installations in the second quarter. And orders for larger turbines are starting to add up, according to AWEA’s most recent market update. Some 22 projects boasting a combined capacity of 3,907 MW reported buying turbines with a listed capacity of 3.5 MW or greater in the second quarter of the year, a 35% increase over the first three months of 2019.

Developers in the United States only first started ordering 4 MW machines in the third quarter of 2018. Orders for those turbines increased to 2,190 MW in the second quarter, AWEA reported.

The advantages of larger turbines are several. Larger turbines mean fewer towers are needed to generate the same amount of electricity, decreasing projects’ costs and the size of their footprint. That opens areas of the country like the Great Lakes, Mid-Atlantic and West Coast, where open land is at a premium, to wind energy, Hensley said.
https://www.scientificamerican.com/arti ... nd-energy/
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Re: Wind Turbines

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Wind power prices now lower than the cost of natural gas

In the US, it's cheaper to build and operate wind farms than buy fossil fuels.

This week, the US Department of Energy released a report that looks back on the state of wind power in the US by running the numbers on 2018. The analysis shows that wind hardware prices are dropping, even as new turbine designs are increasing the typical power generated by each turbine. As a result, recent wind farms have gotten so cheap that you can build and operate them for less than the expected cost of buying fuel for an equivalent natural gas plant.

Wind is even cheaper at the moment because of a tax credit given to renewable energy generation. But that credit is in the process of fading out, leading to long term uncertainty in a power market where demand is generally stable or dropping.

2018 saw about 7.6 GigaWatts of new wind capacity added to the grid, accounting for just over 20 percent of the US' capacity additions. This puts it in third place behind natural gas and solar power. That's less impressive than it might sound, however, given that things like coal and nuclear are essentially at a standstill. Because the best winds aren't evenly distributed in the US, there are areas, like parts of the Great Plains, where wind installations were more than half of the new power capacity installed.

Overall, that brings the US' installed capacity up to nearly 100GW. That leaves only China ahead of the US, although the gap is substantial with China having more than double the US' installed capacity. It still leaves wind supplying only 6.5 percent of the US' total electricity in 2018, though, which places it behind a dozen other countries. Four of them—Denmark, Germany, Ireland, and Portugal—get over 20 percent of their total electric needs supplied by wind, with Denmark at over 40 percent.

That figure is notable, as having over 30 percent of your power supplied by an intermittent source is a challenge for many existing grids. But there are a number of states that have now cleared the 30 percent threshold: Kansas, Iowa, and Oklahoma, with the two Dakotas not far behind. The Southwest Power Pool, which serves two of those states plus wind giant Texas, is currently getting a quarter of its electricity from wind. (Texas leads the US with 25GW of installed wind capacity.)
https://arstechnica.com/science/2019/08 ... tural-gas/
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Re: Wind Turbines

Post by robinson »

ed wrote: Mon Apr 23, 2018 11:13 am Not a mention of impact on wildlife or what impact low frequency thrumming might have on humans.
Killing millions of birds and bats is a small price to pay for saving the world.
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Re: Wind Turbines

Post by Bananas?-Yes »

I assume that vocabulary "thrumming" is something to do with vibrations and that is an area where a lot of folks don't pay a whole heck of heed to. In choppers we are always paying attention to whether it is a high or low frequency vibration, because high frequency means get on the ground immediately. And I mean that 'immediately' as in no matter who owns the ground below. In fact, immediately is not soon enough.

But I seem to remember in the O'Club that a flight surgeon once went on and on about how they knew so little about the possible problems with low frequency vibrations. That was over thirty years ago, so I suspect they have more information now. I hope they do.

And that business of natural flight creatures giving up their lives for us nonflying animals seems a tough one to make conclusions about. It ain't no small price for the flying creature who has that midair collision.
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Re: Wind Turbines

Post by ed »

Remember the VLA(that was a radio telescope thingie I mean VLF? It have off low frequencies to help track subs (do I have that right?). Problem was that it fucked up the navigation of porpoises and whales. Then again, sea mammals are so yesterday ...


eta
https://en.wikipedia.org/wiki/Communica ... submarines

Here we go:
If you were a blue whale, the water in most of the world’s oceans would be so murky that you wouldn’t be able to see your own flukes. Which is why most marine species use sound to navigate, feed, find mates, and communica—BLUURRRRGGGGHHHH AAAARRROOOOOO WAA WAA WAA—oh, sorry, pardon the interruption.

That’s just the noise of whales cheering. See, they just won a major noise pollution battle against the US Navy. For over a decade, the Navy has been trying to convince the courts that they can use an ultra-loud sonar array in a way that is safe for marine life. But on July 15, the Ninth US Circuit Court of Appeals in San Francisco said that no, actually it’s not safe at all.

The Epic Fight to Protect Whales From the U.S. Navy
The ruling came down to a Navy-friendly interpretation of the National Marine Protection Act, which prohibits any US citizen, agency, or organization from harming creatures like whales, dolphins, and seals. That ruling was made by NOAA’s Fisheries Service, putting them in cahoots with the Navy. However, NRDC and several co-defendants took NOAA Fisheries to court, and eventually won the case. As a result, the Navy will be barred from using its deep submarine hunting sonar in much of the world’s oceans during peacetime.

Sonar Subwoofers
The US hasn’t faced any real naval threat in decades. During the 1970s, however, the Soviet Union was developing quieter submarines. At the same time, the ocean itself was getting noisier from activities like oil drilling and marine shipping. The US Navy wasn’t just worried about a sneak attack from the deep: Submarines that creep close to an enemy’s ships or shore are capable of all sorts of clandestine shenanigans, like eavesdropping on short range communications.

So the Navy started working on a special long-range sonar tool. They called it Surveillance Towed Array Sensor System Low Frequency Active, or SURTASS/LFA. One quick aside: That is a monstrous acronym with three S’s, none of which stands for sonar! But sonar it is. The system deploys from the aft ends of special sub-hunting surface ships. Once lowered from the massive reel, the system’s 18 source projectors—basically huge, aquatic subwoofers—emit loud, low-frequency tones.
https://www.wired.com/2016/07/sea-will- ... ing-sonar/
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Re: Wind Turbines

Post by Witness »

Wyoming wind farm making same power with 80% fewer turbines

CHEYENNE, Wyo. (AP) — Bigger, more efficient equipment will allow an electric utility to redevelop Wyoming's first commercial wind farm so it produces the same amount of power with far fewer turbines, an example of the growing feasibility of renewable energy in the top U.S. coal-mining state.

Portland, Oregon-based PacifiCorp plans to replace 68 wind turbines at the Foote Creek I wind farm with 13 turbines. The wind farm atop the barren and blustery ridge called Foote Creek Rim west of Cheyenne will continue to generate about 41 megawatts, or enough electricity to power nearly 20,000 homes.

[…]

Increasingly efficient renewables and inexpensive gas-fired electricity are bad news for Wyoming's coal mining industry, which employs about 4,700 miners and supplies over 40 percent of U.S. coal. Several bankruptcies, including one that shut down two of the top-producing U.S. coal mines in the state's northeastern Powder River Basin area of rolling grasslands, have hit the industry in recent years.

At Foote Creek Rim, PacifiCorp plans to replace its 600-kilowatt Mitsubishi wind turbines with 2- and 4-megawatt Vestas turbines. The Vestas turbines will have larger blades spanning 120 yards (110 meters) and 149 yards (136 meters).

As the new turbines go up, the existing ones will be decommissioned next April.
https://kutv.com/news/nation-world/wyom ... g%20state.
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Re: Wind Turbines

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Climate change: Offshore wind expands at record low price

Friday's announcement offers a guaranteed price to firms willing to take the risk of installing costly offshore wind turbines in projects set to be delivered by 2025.

The cheapest operator will provide power for as low as £40 per megawatt hour.

By comparison, power from Hinkley Point C - the new nuclear power station in Somerset also due to open in 2025 - is expected to cost £92.50 per megawatt hour.

John Sauven, executive director of Greenpeace, said: "Today's news makes arguing for the massive public subsidies nuclear power requires a much harder task."

The government anticipates the overall wholesale electricity price will range between £48.95 in 2023-24 to £52.36 per megawatt hour in 2026-27.

The cost of offshore wind has plummeted about 30% in the last two years.
https://www.bbc.com/news/uk-49769259
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Re: Wind Turbines

Post by Surprise »

robinson wrote: Fri Aug 23, 2019 10:47 am
ed wrote: Mon Apr 23, 2018 11:13 am Not a mention of impact on wildlife or what impact low frequency thrumming might have on humans.
Killing millions of birds and bats is a small price to pay for saving the world.
Climate change and habitat destruction are causing far more damange.
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Re: Wind Turbines

Post by Anaxagoras »

Supposedly a lot of birds get killed simply from glass windows.
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Re: Wind Turbines

Post by gnome »

As much as I find heartening the remarkable appreciation that oil and coal industry leaders have discovered for the plight of animals, it is true that any impact description should really be comparative--I don't think the math works even if you discount the potential of climate change to harm wildlife.
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Re: Wind Turbines

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Solar and Wind Power So Cheap They’re Outgrowing Subsidies

The government aid renewable energy developers once relied on is fading away

For years, wind and solar power were derided as boondoggles. They were too expensive, the argument went, to build without government handouts.

Today, renewable energy is so cheap that the handouts they once needed are disappearing.

On sun-drenched fields across Spain and Italy, developers are building solar farms without subsidies or tax-breaks, betting they can profit without them. In China, the government plans to stop financially supporting new wind farms. And in the U.S., developers are signing shorter sales contracts, opting to depend on competitive markets for revenue once the agreements expire.

[…]

The reason, in short, is the subsidies worked. After decades of quotas, tax breaks and feed-in-tariffs, wind and solar have been deployed widely enough for manufacturers and developers to become increasingly efficient and drive down costs. The cost of wind power has fallen about 50% since 2010. Solar has dropped 85%. That makes them cheaper than new coal and gas plants in two-thirds of the world, according to BloombergNEF.
https://www.bloomberg.com/news/features ... -subsidies
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Re: Wind Turbines

Post by gnome »

But Soylandra, amirite? We should never even have tried.
"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

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UK Renewables Outperform Gas For First Quarter Ever

New figures from the UK Government published just before Christmas showed that renewable energy generation across the country generated a record quarterly amount of electricity between July and September, outperforming natural gas for the first time ever.

The UK Government’s Department for Business, Energy and Industrial Strategy (BEIS) published its latest “Energy Trends” report just before Christmas which showed that in the third quarter of 2019 renewable energy sources provided a record 38.9% of the country’s electricity — exceeding natural gas for the first time ever, which provided 38.8%.

This new quarterly record for renewable energy generation beat out the previous quarterly record of 36.8% set in the fourth quarter of 2018, highlighting the potential for a new record to be set again as we come to the end of the fourth quarter of 2019. This is particularly important as the report highlighted that the third quarter’s new record was caused by a combination of favorable weather conditions and increased renewable energy generation sources, with combined renewable electricity capacity increasing to 46.9 GW at the end of the third quarter — a 7.2% year-over-year increase.

This was unsurprisingly led by offshore wind — given the country’s current dominance in offshore wind deployment — which for the first time ever exceeded onshore wind generation.
https://cleantechnica.com/2019/12/27/uk ... rter-ever/
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Re: Wind Turbines

Post by ceptimus »

They include in the category 'renewable' the huge, previously coal-fired, power stations such as Drax, which have now been converted to mostly burn wood pellets, The pellets are made from trees felled in North America, and then transported about a quarter of the way around the world to be burned.

These biomass power stations create more CO2 per unit of electricity burned than the coal-fired ones do. They're not really renewable either: even when one ignores all the fossil fuel burned producing and transporting the pellets (which the politicians do, of course), the biomass itself is only neutral once the saplings they plant grow to the same size as the trees that were cut down - and that will likely be after the forthcoming climate disaster, according to climate scientists.

Article about Biomass industry greenwashing