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Power Earth

World's Wind Power Capacity Up By Fifth After Record Year (theguardian.com) 153

An anonymous reader quotes a report from The Guardian: The world's wind power capacity grew by almost a fifth in 2019 after a year of record growth for offshore windfarms and a boom in onshore projects in the US and China. The Global Wind Energy Council found that wind power capacity grew by 60.4 gigawatts, or 19%, compared with 2018, in one of the strongest years on record for the global wind power industry. The growth was powered by a record year for offshore wind, which grew by 6.1GW to make up a tenth of new windfarm installations for the first time. The council's annual report found that the US and China remain the world's largest markets for onshore wind power development. Together the two countries make up almost two-thirds of global growth in wind power. GWEC had expected 2020 to emerge as a record year for the rollout of wind energy projects, and forecast growth of 20% in the year ahead, but it said the impact of the global coronavirus pandemic was as yet unknown.
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World's Wind Power Capacity Up By Fifth After Record Year

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  • by Mr. Dollar Ton ( 5495648 ) on Wednesday March 25, 2020 @10:34PM (#59872462)
    we assume a spherical cow. What's the capacity factor or the actual output, which are the data that matter? If I recall correctly, for wind it is something below 30%.
    • we assume a spherical cow. What's the capacity factor or the actual output, which are the data that matter? If I recall correctly, for wind it is something below 30%.

      You do not recall correctly. The capacity factor for all U.S. turbines, averaged 34.8% [eia.gov] last year.

  • Great that we continue to add new wind, but, we need to avoid the issues that Germany and Spain have.
    Instead, we need to add more nuclear power plants (and start replacing the old ones), along with more wind, solar, geothermal, and hydro.
    • by burni2 ( 1643061 ) on Thursday March 26, 2020 @03:58AM (#59872838)

      You provided no arguments for your POV, can you be more specific, because I live in Germany and when I plug a device into the socket, it works 99,999999% of the time - no issues at all.

      And Spain isn't the best example with 25% nuclear energy.

      In short, no more nuclear because it cannot assist the changing renewables.

      And btw. have you ever thought about the future price for electricity in france .. they have a big nuclear park .. of very old and ever aging plants that need to be replaced .. .. replacement = new nuclear reactors = expensive -> leads to -> the future french electricity price will increase above the german prices.

      • by AmiMoJo ( 196126 ) on Thursday March 26, 2020 @05:44AM (#59872964) Homepage Journal

        France is keeping old reactors going because they don't want to pay for new ones. Nuclear basically turned into corporate welfare and they are fed up with it. EDF, one of the big nuclear operators, nearly went bust and had to be bailed out by the government a few years ago.

        They basically gave up trying to build new nuclear in France and have been trying to do it elsewhere in Europe, but all the projects have ended up behind schedule and over budget. Take Hinkley C for example. The budget says it will be the most expensive object on Earth when finished (the ISS is about the only thing more expensive) and the electricity for it has a guaranteed price about 2x that of subsidised wind. No legal issues or challenges, it is being built on an existing site with existing infrastructure already in place. In the end they had to get Chinese investors in to keep the project afloat.

        So yeah, I don't think France is very keen on replacing its existing reactors with new ones.

        • Old pressure vessels (reactors) are going to finally crack at a certain point in time. This will most likely happen during a load cycle (pressure up/down down/up).

          Every material has defects of a certain size and you can observe the size and number of the defects that are introduced by operation.

          With those old reactors the water for emergency/fast cooling is for some time now required to be warmed up, to leverage the thermal stress on the pressure vessel.

          Those cracks are under observation, but you can tell f

      • In short, no more nuclear because it cannot assist the changing renewables.

        That's no longer true. There are companies now building proof of concept prototypes of nuclear power plants capable of load following. We know how to build Brayton cycle turbines that run on heat from molten salt. These were used on solar thermal collectors to produce electricity. We know how to keep molten salt hot from nuclear power. These are both technologies that are decades old. The only thing we needed to do is have the federal government allow someone to prove the concept with a license to build a prototype. This happened shortly after Trump was elected as POTUS.

        I don't know how far along they are in building this prototype but this technology will come to a civilian nuclear power plant relatively soon.

        And btw. have you ever thought about the future price for electricity in france .. they have a big nuclear park .. of very old and ever aging plants that need to be replaced .. .. replacement = new nuclear reactors = expensive -> leads to -> the future french electricity price will increase above the german prices.

        You really think so? I wouldn't bet on that.

        • In short, no more nuclear because it cannot assist the changing renewables.

          That's no longer true. I don't know how far along they are in building this prototype but this technology will come to a civilian nuclear power plant relatively soon.

          I think that your information is outdated. It seems nuclear engineers with that expertise have switched to building molten salt solar plants [insideclimatenews.org] and are no longer proponents of nuclear energy.

          And btw. have you ever thought about the future price for electricity in franc

        • by _merlin ( 160982 )

          They haven't even built a prototype and you consider it as good as done? I used to be optimistic like that, but none of these high-tech nuclear power plant designs seem to come through in the long run. It's proving very difficult [www.gov.uk] and expensive to decommission the Prototype Fast Reactor [wikipedia.org]. The Monju fast breeder has been plagued by a series of incidents [wikipedia.org]. The AVR pebble bed reactor [wikipedia.org] was supposed to be inherently safe, but suffered from localised hot spots. It caused groundwater contamination, and now it's p

        • That's no longer true. There are companies now building proof of concept prototypes of nuclear power plants capable of load following.

          "Now building"? Construction of the first site (just concrete pouring) won't start for more than three years, and the optimistic projection for completion of the first actual module is more than six and a half years from now. "Now not building" would be accurate - "still just planning".

          Lets see when (if) they bring their full 12-module plant on-line as planned in seven years producing a grand total output of 0.72 GWe. Wind and solar are adding almost twenty times this much production (not capacity) this yea

          • You sound like you are employed as a press flack for NuScale.

            And you sound like you've been paid to promote wind and solar.

        • by AmiMoJo ( 196126 )

          That's no longer true. There are companies now building proof of concept prototypes

          Wow. There's optimism and then there's "unnamed companies are building proof of concept prototype nuclear reactors". So by the time they have been proven, assuming no major issues like all the other proof of concept reactors over the years, do you think they will be economically attractive and needed?

          Anyway, I think you meant to say that it is true but maybe one day in the medium to long term there might be a solution, if anyone wants it.

        • "You really think so? I wouldn't bet on that."
          This is not an argument of any kind.

          My projection is based on facts that can be cross checked, and lead to a logical path:

          1.) france has old reactors -> fact

          2.) reactors going to reach EOL -> fact (fatigue, crack growth, and radiological induced defects)
          - or will be operated with an ever decreasing safety margin

          3.) France is now finishing one new nuclear reactor, it has overshot its building cost (10 billion EUR) have trippelt the estimated price (3,3 bill

      • France is switching to renewables, just like Germany.
        I doubt the energy price will change much as the power prices in France are subsidized by the government - or if you prefer: by the state.
        The idiots in the internet think the power is cheap because it is nuclear ... however it is cheap because of "demand shaping", aka producing heat at night for hot water/shower and in winter heating, so the reactors can run at higher yields as they would otherwise. And cheap because it is sold for ~ 50% of its production

        • by burni2 ( 1643061 )

          That should be the way, however France is in a dead lock situation, because changing renewables don't go well with old nuclear reactors. Those old reactors can only experience a low number of thermal cycles. (metal fatigue and transmutation in steel from neutrons from 30-40 yrs. of operation)

          France really needs to add storage technology to the net or natural gas plants (yes contradictive but natural gas plants can adapt to changing renewable output, with the consequence of emitting fossil CO2)

      • France and other nuclear/hydro/geothermal powered nations are the ones providing you with lower cost electricity to fill in the gaps when your wind/solar is gone, and your coal plants do not produce enough. Things will only get worse for you as you phase out coal and install some Nat gas, but likely less. Right now, you export more than you import, but kill the coal and it will go other way.
      • If the French are smart, they will follow similar path to us, and create a true energy matrix, as opposed to moving from being mostly dependant on just 1 energy, or like you folks are doing.
    • by shilly ( 142940 ) on Thursday March 26, 2020 @04:59AM (#59872902)

      It seems the underlying point you're making is that we should decarbonise but not do it stupidly. Agree. The UK, Norway, Sweden are all examples of sensible decarbonisation. None is predicated on large quantities of new nuclear (Hinckley notwithstanding). All have moved at pace.

      • they all have large amounts of none wind/solar in those nations. They have lots of hydro, nukes and/or geothermal.
        We need to add all of these.
        And yes, it is all about getting our emissions down.
        • by shilly ( 142940 )

          I don't know why you're bothering to point out these things to me -- I'm not suggesting that the UK, Norway or Sweden don't have large amounts of low carbon electricity from sources beyond wind and solar. However, none of them is bring lots of new nuclear online, specifically. New nuclear is not needed in order to decarbonise. It can be used, but it's not needed. And it brings its own problems.

    • we need to avoid the issues that Germany and Spain have.

      The issue that the power works as advertised on a nationally stable grid part of the larger EU wide network?

      I don't want to avoid that issue. I'm actually quite happy about how power works in all of these countries.

      • Germany and Spain have some of the highest cost electricity. In addition, if it was not for all of the nuclear energy from outside of these nations, they would have to create loads of coal plants. No thank you.
        Far better to simply have a nice energy matrix that is clean. America is headed in the right direction with coal plants being shut down. We just need to shut them ALL down.
  • Japaneezy . Hiki 2004.
  • Megawatt hours actually generated is. How much did wind generated power increase?

    • Nameplate capacity [wikipedia.org] always exceeds actual generated energy, regardless of technology. Fuel availability, maintenance cycles and amount of demand apply to all sources, just in different ways. The industry term for this is capacity factor [wikipedia.org]. Nuclear and geothermal have the highest capacity factors (80-90%). Wind and solar the lowest (10-35%).

      Closely coupled with this is dispatchability [wikipedia.org] to handle the immediate need for power "now" vs the average over time. Here, batteries, geothermal, hydro, and gas turbines ar

  • That is enough to power 50 DeLoreans [wikipedia.org]. Sweet.

  • There is always a time lag between the creation and adoption of new technology, and the creation and adoption of the required supporting structure. The longer the current structure can tweaked to support new technology, the longer it takes to develop the required new structures. The wheel came long before roads. Building dams to create reservoirs came long after the development of water-powered machinery.
    Batteries are today's electrical energy storage structure. As solar and wind power generation become m

  • I'm all for wind power, it's just sad that those huge turbine blades are not effectively recyclable, so they have to be buried in a landfills when they wear out. So wind power, in its present form, is not as eco-friendly as perceived.
  • by LynnwoodRooster ( 966895 ) on Thursday March 26, 2020 @01:17PM (#59874368) Journal

    Capacity != output. The capacity factor of wind is around 35% [eia.gov]. Install 1 MW of wind? You get, typically, 350 kW of output. Meanwhile, the capacity factor of nuclear is around 94%, so you install 1 GW of nuclear, you get 940 MW of output.

    Also ignored is when that power is available, and what the downtime is. For nuclear, it's almost always scheduled maintenance that brings down a plant; with wind, it's whenever the wind is - or isn't - blowing.

    So we can crow about getting 21 GW of actual generation output (at 2 MW per turbine, that's around 10,000 turbines), that happens at random times, or we could just build 10 new nuclear power plants, have the same generation output - and schedule when that power is available.

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