Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
×
Power

Global Wind and Solar Power Capacity Grew At Record Rate In 2020 (theguardian.com) 184

The world's wind and solar energy capacity grew at a record rate last year while the oil industry recorded its steepest slump in demand since the second world war, according to BP. The Guardian reports: The impact of coronavirus lockdowns on the energy industry led carbon emissions to plummet by 6% on the year before, the sharpest decline since 1945, according to BP's annual review of the energy sector. But the report says the impact of Covid on carbon emissions needs to be replicated every year for the next three decades if governments hope to limit global heating to 1.5C above pre-industrial levels. "Yes, they were the biggest falls seen for 75 years," said Spencer Dale, BP's chief economist. "But they occurred against the backdrop of a global pandemic and the largest economic recession in postwar history. The challenge is to reduce emissions without causing massive disruption and damage to everyday lives and livelihoods."

Meanwhile the "relentless expansion of renewable energy" meant electricity generated by wind, solar and hydroelectricity plants was "relatively unscathed," Dale said. The report found that global wind and solar power capacity grew by 238GW in 2020, more than five times greater than the UK's total renewable energy capacity. The increase was mainly driven by China, which accounted for roughly half of the global increase in wind and solar energy production capacity, but even controlling for that 2020 was a record year for building wind and solar farms. Dale said the trend away from fossil fuels and towards renewable energy last year was "exactly what the world needs to see as it transitions to net zero."

This discussion has been archived. No new comments can be posted.

Global Wind and Solar Power Capacity Grew At Record Rate In 2020

Comments Filter:
  • too slow (Score:5, Interesting)

    by etash ( 1907284 ) on Friday July 09, 2021 @02:16AM (#61564937)
    the change is too slow, i don't think we will reach that 1.5 target. Here in Greece a desertification is already happening. During the 90s we had snow in athens frequently, now every 5-6 years, the average temperatures are also way higher. in the 90s we put t-shirts in the closet by the end of Septeber, now by end of November. It's terrible.
    • by stooo ( 2202012 )

      This.
      Need much much more renewables !

    • Re:too slow (Score:5, Insightful)

      by sg_oneill ( 159032 ) on Friday July 09, 2021 @03:15AM (#61565047)

      Yep. Here in Australia where I live we always had extremely dry summers, and now increasingly things are behaving more tropical, as if Perth had somehow travelled 500km north.

      Which is a real shit. Dry heat is easy to deal with. evaporative air conditioning is cheap to run, but it only works in low humidity. If its that nasty sticky heat, evaporative just makes it *worse*.

      I think thats part of what people miss. Its not a simple increase in temperatures, its a an increase in energy to the entire atomospheric system. Some of that will be in the form of thermal energy, and some of that will be in the form of kinetic energy, Storms, winds , weird-ass changes to complex weather systems.

      The boring climate deniers who love to bang on about how the predictions wont work because 'climate is complicated' miss the point that thats not a good thing, its a *very bad thing*. (And for reference we can make pretty good predictions, the climate might be complicated by the simple fact of increased energy to the system is very simple. Increase IR absorbsion by CO2=>energy retained.)

      • by Sique ( 173459 )
        Climate might be complicated in detail, but so are the electrodynamics of the shells of single atoms. But a liquid like water as a whole has a lot of easily descibable parameters like density, heat capacity, temperature, pressure or volume.

        You can tell a lot about Climate by just working from First Principles. This was already done in the 1970ies, and the general development of Climate over the course of 50 years has predicted the actual curves quite accurately. Yes, some details are quite nitty and gritt

      • evaporative air conditioning is cheap to run, but it only works in low humidity.

        Here in the USA we colloquially call them "swamp coolers", and officially "evaporative coolers", but they are never called "air conditioning". We reserve that name for systems that use a phase change. And I bring this up only because it actually makes sense. Particularly the name "swamp cooler", because they make the air humid. The big problem with evaporative coolers is that they work efficiently and also produce comfortable temperatures only in a very narrow window of temperatures and also, as you say, on

        • We reserve that name for systems that use a phase change.

          You mean like evaporation? ;)

        • by jbengt ( 874751 )

          Here in the USA we colloquially call them "swamp coolers", and officially "evaporative coolers", but they are never called "air conditioning". We reserve that name for systems that use a phase change.

          First, evaporative cooling does involve a phase change. It's right there in the word "evaporative".
          Second, the name "air conditioning" is not reserved for refrigerant expansion and compression cycle phase change systems. Technically, "air conditoioing" describes systems that control temperature and other en

      • evaporative air conditioning is cheap to run, but it only works in low humidity.

        Look into M-cycle (Maisotsenko cycle) cooling. That's multi-stage evaporative cooling using a heat exchanger so the product air isn't humidified, and which approaches the dewpoint, rather than the wet-bulb, temperature. So it's useful in MODERATE humidity.

        The equipment is somewhat more expensive than an evaporative cooler and currently not all that easy to obtain. But it's getting there.

    • Exponential growth may save us yet.

      Last year 238 GW and this year 400 GW, by 2025 we may build 1000 GW a year. Total works capacity is around 30 000 GW, and by 2030 we might reach 3 000 GW solar + wind production per year.

      Future will tell!

    • We used to have real Winters in my home area, with schools actually closing down and villages being snowed in and unreachable for weeks during the worst times.

      Last year, we didn't even have snow.

      • Last year, we didn't even have snow.

        This winter we had snow. In Málaga (Spain). The last time it snowed there was in 1954. People here suffered below zero temperatures for a few weeks & the housing here isn't built to cope with that. Many homes don't have heating. But at least we could get out into the sun during the day to warm up a little.

        Expect increasingly more intense & extreme weather events to become the norm.

        • Some parts in Austria had 4.5C yesterday. Some others 38C.

          For the Americans here, that's 40F and 100F in two places in a country the size of South Carolina.

          • I have no idea why coastal South Carolina doesn't have temperature ranges like that with it's truly massive mountains which stretch almost an entire kilometer up into the sky.

            Maybe, just maybe, geography plays a bit of a factor in the difference in temperature range across the two regions, given one is a landlocked mountainous region and the other is a hilariously flat coastal floodplain.

            Maybe.

            • The reason I picked South Carolina was that the CIA factbook uses it as a size comparison, not for its terrain features.

              Take, I dunno, Colorado which is as far as I know (sorry, not a US geography expert myself) has a couple mountains, and try to find two places there within that distance of a 60F temperature difference.

    • Our global fossil fuel industry hires a lot of good paying stable blue collar jobs. Keeping this group of people happy is the Political Low hanging fruit.
      * They are paid well for a comfortable life style, so they have money to contribute towards the party.
      * Their jobs are stable, so they would be having more traditional nuclear families. Meaning their values will be moved to the next generation.
      * Many (not all) of these jobs only require a basic set of education. And are do what the boss says type of work,

    • I'll tell you my own story. I live in coastal British Columbia, and live on the same property I grew up on. When I was a kid, back in the 70s and 80s, there was a wonderful pond that used to freeze over every winter. We'd get at least two or three weeks of good skating a year on that pond. This is just a few hundred feet above sea level, not more than five miles from the ocean.

      The last time that pond ever froze over sufficiently to even walk on was when I was 18 years old, back around 1990-91. After that, w

    • I lived in Athens from 1979 to 1988 and regularly visited to 1998. I don't remember regular snowfall at all. I can recall two times when it snowed in Athens between 1979 to 1988. Are you referring to the suburbs north of Athens?
      • by etash ( 1907284 )
        hey, I do not mean regular but more frequent than now, but where I lived - northern-ish part of it but still not suburbs - we had snow every 2-3 years, now every 5-6.
    • by Subm ( 79417 )

      It's nice, but a distraction. What affects the environment is not how much more solar we produce but how much less carbon we emit.

      We should trumpet how many coal factories we closed, how many flights airlines kept grounded, container ships stayed in port, and so on, all globally, no counting a closed factory here when we open another elsewhere to do the same thing. If solar enables those reductions, great, but we can reduce them without solar given how much we overconsume.

  • have been gone for 20+ years. One was replaced by a tiny set of natural gas generators.

    I'm in a place where there's huge amounts of hydro some nuclear plants, also lots and lots of wind power.

    I used about 216 Kwh in June in my 3k sq foot house.

  • by thegarbz ( 1787294 ) on Friday July 09, 2021 @03:04AM (#61565021)

    Say what you want about China, but they added more wind capacity to their grid last year than the entire rest of the world combined in any previous year on record.

    We need more of this investment not just in China, but everywhere. We need more of 2020 level primary energy consumption. We are not on track to avert global warming, not even close. While 2020 brought us close to being on track, 2021 has already undone that and taken us off track in the first 4 months of the year.

    • by stooo ( 2202012 )

      This.
      Need to double the investment in renewables !

      • Re: (Score:3, Insightful)

        This. Need to double the investment in renewables !

        How about gradually switching govt. subsidies from fossil fuels over to renewables? Do it strategically for maximum benefit with minimum disruption.

        • How about gradually switching govt. subsidies from fossil fuels over to renewables? Do it strategically for maximum benefit with minimum disruption.

          How about we stop the energy subsidies and allow competition to bring us the lowest cost options? I'll have people claim that solar + storage is cheaper than natural gas, so why subsidize a choice people would make anyway?

          The answer is that because if solar power was not subsidized the industry would collapse, with nuclear fission and onshore wind being the dominate forms of energy. Nearly all the reductions in CO2 emissions from the USA came from a switch from coal to natural gas, and from the reduced ec

          • Governments subsidise & tax a lot of things. It's their main job, i.e. control the flow of money to manage the economy. It used to be that they stimulated economic activity by making fossil fuels cheaper. Now they've discovered it's going to cost a whole lot more than they expected in environmental degradation & damage so now it's time to move the money somewhere else to simulate growth, i.e. renewables. At the moment, the govt. gets a higher ROI from wind & solar so it makes sense to push more
            • At the moment, the govt. gets a higher ROI from wind & solar so it makes sense to push more money in that direction.

              Sure, the higher "return on investment" is politicians can buy more votes with money they took from us with taxes by using wind and solar subsidies. The economic ROI on solar power is negative, and wind power is profitable enough on it's own that it doesn't need government subsidies any more.

              Remember that existing nuclear reactor designs were mostly to breed fissile materials for nuclear warheads during the cold war & the nuclear arms race. The electricity they generated was secondary.

              Who's asshole did you pull that one from?

              In terms of rapid global roll out of well-proven technologies goes, wind & solar seem to be meeting the objectives.

              What objectives are those? Wind and solar power roll out can't even keep up with the growth in electricity demand, and certainly not with the demand created by the closure of o

              • You seem to have read a redacted account of the history of the nuclear industry so here's a couple of simple facts for you: 1. The first nuclear reactors didn't generate a single watt of electricity. They weren't thinking about electricity at that point. Initial designs to generate electricity cost-effectively turned out to be unworkable due to mammoth initial investment costs so they designed the inefficient & unsafe reactors we have today so that they could justify continuing to spend massive amounts
    • by gweihir ( 88907 ) on Friday July 09, 2021 @03:22AM (#61565059)

      The thing about the Chinese is that they can actually see this catastrophe coming and, because they are in part totalitarian, they can do something about it systematically. Generally, the system they have is terrible. But in a slowly happening catastrophe, it is an advantage. And were the west has lawyers disconnected from reality in their governments, the Chinese have engineers and scientists.

      As to being not at all "on track", I completely agree. If we do not take drastic action very soon, we are on track to 3..4C. I think most people have no clue what that actually means and how exceptionally bad that is. After all, it is just a few degrees, right? Wrong.

      • The thing about the Chinese is that they can actually see this catastrophe coming

        And America can't...?

        • by gweihir ( 88907 )

          The thing about the Chinese is that they can actually see this catastrophe coming

          And America can't...?

          Apparently a rather large part if it cannot. That is fatal in a democracy. In a totalitarian regime, as soon as the leadership has seen it and decided to do something you have won. In a democracy you need a solid majority of the people to push through unpleasant measures.

          • In a democracy you need a solid majority of the people to push through unpleasant measures.

            Donald Trump seemed to push quite a few environment-altering measures through without majority support.

            • by gweihir ( 88907 )

              In a democracy you need a solid majority of the people to push through unpleasant measures.

              Donald Trump seemed to push quite a few environment-altering measures through without majority support.

              Well, if you have industry support because you make the problem worse for everybody, but allow the industry to rake in more money, that helps a lot.

            • Donald Trump seemed to push quite a few environment-altering measures through without majority support.

              That's what happens when Congress grants the executive branch so much authority on regulations. What Republicans and Democrats in Congress apparently can agree on doing is handing their job over to the executive branch when there's a difficult decision to be made.

      • The thing about the Chinese is that they can actually see this catastrophe coming and, because they are in part totalitarian, they can do something about it systematically. Generally, the system they have is terrible. But in a slowly happening catastrophe, it is an advantage.

        By far, the most efficient and effective form of government is a beneficent dictatorship. Unfortunately, it's the beneficent part that is impractical.

        • by gweihir ( 88907 )

          The thing about the Chinese is that they can actually see this catastrophe coming and, because they are in part totalitarian, they can do something about it systematically. Generally, the system they have is terrible. But in a slowly happening catastrophe, it is an advantage.

          By far, the most efficient and effective form of government is a beneficent dictatorship. Unfortunately, it's the beneficent part that is impractical.

          Indeed. And even if you get it, as soon as their offspring takes over, things go to shit.

          • by gweihir ( 88907 )

            By far, the most efficient and effective form of government is a beneficent dictatorship. Unfortunately, it's the beneficent part that is impractical.

            Indeed. And even if you get it, as soon as their offspring takes over, things go to shit.

            Come to think of it, that is pretty much what is going to happen to China when Xi croaks. If not before. His move to put himself into power for life was by far the most anti-China act I have ever seen. He could probably not have done more long-term damage in any other way. The good thing for the rest of the world is that a hostile take-over by China is pretty much off the table after that move.

    • by Bruce66423 ( 1678196 ) on Friday July 09, 2021 @04:14AM (#61565111)

      LOTS of coal fired electricity plants

      https://e360.yale.edu/features... [yale.edu]

      Sometimes it seems like it's a good rule to think: whenever someone produces a apparently good news story about China, be very, very doubtful...

      • by AmiMoJo ( 196126 ) on Friday July 09, 2021 @04:34AM (#61565129) Homepage Journal

        That article is a good example of how climate hand-wringers try to mislead you. The 4% figure has a link, but the link is broken because there is a random character at the end of the URL. If you fix it you get this page:

        https://www.carbonbrief.org/an... [carbonbrief.org]

        Note that it says that overall emissions are up 1.5% from 2019, the 4% figure is because there was a big COVID dip in the first half of 2020 and they cherry-picked H1 to H2 of that year.

        If you scroll down further you can see that China actually reduced emissions in 2015/16, and that the rebound in 2020 H2 was mostly due to heavy industry, not coal powered electricity generation.

        The story with coal power plants in China is that most of the new ones are mothballed or unprofitable. The central government used to plan electricity generation, but decided to let regional governments do it because it thought that they would be better placed to meet local needs in a rapidly growing economy. Unfortunately the local governments just built loads of coal plants, and most of them ended up being superfluous due to massive amounts of wind power coming online. The ones that are running tend to be replacements for older plants are are cleaner, as well as being more able to follow demand and variations in wind output.

    • China is sadly also world leader in bringing new coal power online. This completely dwarfs their renewables. China needs more power, they absolutely do not let climate concerns get in the way.
      • by thegarbz ( 1787294 ) on Friday July 09, 2021 @04:55AM (#61565151)

        China is the world leader in bringing green energy to mix when increasing energy production. In the past 15 years they have brought online more green energy as a percentage of total new energy than any other nation in its development. Bonus points for the number of coal plants they brought online which actively replaced older less efficient coal plants (largely to address their very serious smog issues).

        It's great to try and dis China's efforts from a high horse, but when doing so it's always important to actually be on a high horse, and not the trojan horse made of a 100 year history of pollution that basically every developed nation stands on.

        The very real risk is if nothing is ever good enough, then why would someone continue trying?

    • Say what you want about China, but they added more wind capacity to their grid last year than the entire rest of the world combined in any previous year on record.

      I'll be the first person to call out China's authoritarian rule, their crushing of personal freedoms, profiteering of international trade, the hypocrisy of the government, their dystopian social controls, their practically cultural genocide of Tibetans and Uigurs... there is so much to condemn about the Chinese government and I can rave on about it all day.

      But you have to give credit where credit is due. And for certain, the Chinese government respects science and seems to be at least willing to take steps

      • But, I would be very careful about taking numbers coming out of China at face value. China likes to present itself as the posterboy in terms of environmentalism and is known to exaggerate or downplay numbers, whatever benefits the most. The truth probably looks quite different.

        So you mean the "soon leading nation on the planet", is putting up fake solar plants and fake wind mills to look shiny on satellite photos?

        Do you really think they waste money for something as stupid as that?

        • So you mean the "soon leading nation on the planet", is putting up fake solar plants and fake wind mills to look shiny on satellite photos?

          Do you really think they waste money for something as stupid as that?

          Yes, they would.
          https://en.wikipedia.org/wiki/... [wikipedia.org]

    • China has also created a lot of coal plants during this time.

  • This kind of headline is stupid. On the one hand, it is meaningless without knowing what the actual rate of growth is. On the other hand, it is useless without knowing what installed base that growth is on top of. On the third hand (hi, Zaphod!) one year with enormous percentage "growth" on a tiny installed base then lines you up for future headlines of "slowing growth in renewable energy" even though those subsequent years might install far more capacity, because in terms of a percentage of the already-
  • Info about the US. (Score:5, Informative)

    by Gravis Zero ( 934156 ) on Friday July 09, 2021 @04:16AM (#61565113)

    There is an easy to understand graph and map new energy installation that came online in 2020, courtesy of the US government: https://www.eia.gov/todayinene... [eia.gov] (They are both SVG, so you can zoom in real good if you like.)

    Besides solar and wind scattered everywhere, some neat details is that battery installations, which you need to level out the grid, are starting to happen (but much more is needed). Also, in Georgia, 1.1GW nuclear plant came online. (Just add another 100MW and a DeLorean to make time travel yours.) Then we have Texas, Ohio, and Pennsylvania dragging down our progress by installing a bunch natural gas energy generation plants.

  • by quonset ( 4839537 ) on Friday July 09, 2021 @06:17AM (#61565275)

    June's power outages in Texas were caused by loss of thermal power plant electricity production [dallasnews.com].

    ERCOT reported unplanned, or “forced,” outages on June 14 of about 12,000 megawatts at generating plants, enough to power more than 2 million homes. About 9,000 of those lost megawatts were from thermal power sources fueled by natural gas, coal or nuclear power.

    Although Cohan blames thermal resources, which make up the bulk of Texas’ installed generating capacity, for most of the unplanned outages, he acknowledged the role of wind in mid-June’s tight grid conditions. At the lowest output during that week, only 179 megawatts — out of 25,121 megawatts of installed wind capacity — were being produced.

    Cohan said one other thing the data makes clear is that “solar kept the lights on.”

    With this data in hand, it's obvious what needs to be done [statesman.com].

    In a letter to the commission, Abbott directed the board to take steps to increase the amount of electricity produced in Texas. Specifically, Abbott told the utility commission to work to provide incentives for the construction and maintenance of natural gas, coal and nuclear power.

    Further, Abbott directed his appointees at the utility commission to take aim at wind and solar power, which have been criticized for their perceived unpredictability in producing power, even as failures at natural gas plants played a significant role in power failures during the February freeze and in last month's conservation call.

    Abbott directed the utility commission to begin assessing "reliability costs," which could take the form of fines, to power plants "that cannot guarantee their own availability, such as wind or solar power," the letter states

    "When they fail to do so, those generators should shoulder the costs of that failure," Abbott's letter states. "Failing to do so creates an uneven playing field between non-renewable and renewable energy generators and creates uncertainty of available generation in" the Electric Reliability Council of Texas, or ERCOT.

    • Thing is, wind and solar CAN guarantee availability... if they do it in the right terms. That's not 100%, always-on availability.

      All they have to do is make reasonable guarantees...

      • Does the availability clause also apply to fossil fuel plants? All the wording seems to target renewable energy but the February debacle in Texas was caused by failure by all types of plants. Texas power plants had no incentive to winterize operations as it was evil "regulations" to make sure that power plants had to keep working in brutal winter conditions.
        • Does the availability clause also apply to fossil fuel plants?

          Oh no, I'm sure they'll get a waiver. Though actually they will probably have a clause about fuel supply, since you can't expect them to store days of fuel on site.

    • Just remember, Texas sued the federal government for the right to fuck up their power grid...

  • Everybody Solar https://www.everybodysolar.org/ [everybodysolar.org] get solar panels for non-profits The Solar Electric Light Fund https://www.self.org/ [self.org] gets solar panels for developing countries in locations they don't have electric power. This helps provide resources for severely impoverished people. It also helps make sure that as those countries transition into modernization they don't need to go through the same high fossil fuel use that the rest of the world did. For wind power, the New England Wind Fund https://www.greenenergyconsumers.org/newenglandwindfund [greenenergyconsumers.org] is a good option. New England has a lot of wind, but currently has little wind power, so this is an efficient use and more wind power isn't going to stress the grid.
  • 84 percent of global energy is met with fossil fuels, and that is projected to grow over next few years. The pandemic cut demand for fossil fuel, that will come roaring back.

    Massive trillion plus dollar infrastructure projects are needed to change this, not the nickel and dime quarter of a TW this article is trying to make sound impressive in light of a 18 TW draw.

  • I spotted another article on this that gave both the nameplate capacity of new installs (I think 238(?) GW), and the total TeraWatt-Hours generated. It divided out to 17%. But then I realized that the "average" install would be half-way through the year, so the capacity factor was really double that, about 1/3rd. Which is the usual for solar and onshore wind.

    Solar can really never be more than 1/3rd, what with the sun down half the time, and not high in the sky for half the day. (And then, weather.)

  • A big failing of many industries is dealing with by products.

    Sometimes that's exhaust gases (eg. coal/natural gas plants), sometimes it's the fuel itself (eg. nuclear power). In the renewables it's the converter (eg. solar cells, turbines).

    What plans are in place for dealing with the by-products of renewables?

    Or is it just about slowing down the rate of pollution or changing to a more easily hidden waste product?

You will have many recoverable tape errors.

Working...