• Iceblade@lemmy.world
    link
    fedilink
    English
    arrow-up
    14
    arrow-down
    1
    ·
    edit-2
    1 year ago

    Sweden already has a significant surplus of electricity production, to the degree that we are one of the largest exporters in the EU and have had several bouts of negative spot prices this past summer.

    However, we also have an effect deficit for the colder part of the year. Two-thirds of simulations by SVK (our national power distributor) find that the peak-load hour during the winter 26/27 will have a deficit equivalent to three gen-II nuclear reactors running at 100% (10’000MW), and 10 continuous hours of blackouts due to power shortage. This is during the coldest part of the year when solar is ineffective, and additionally is often combined with high-pressure fronts, which means low wind speeds.

    In Sweden upwards of 75% of homes get their heating from electricity, and potentially a full day without power in temperatures of beyond -30°C would literally mean people freezing to death.

    Our power bill for December was 800€, and we both have geothermal heating and reduced our indoor temperature significantly, averaging 14-18°C indoors for the month. This was more than January, February and March combined. Meanwhile, the bills for all summer months put together (May, June, July and I expect also August) cost less than the bill for April (100€).

    The most viable short-term solution they’re looking at is (unfortunately) reopening old oil plants from the 60s & 70s however, this might not be possible either, due to newer EU legislations. Bringing them into compliance in time could cost 100’s of millions of SEK, which ironically is more than the “prohibitively expensive repairs” that the previous gov:t cited when they shut down 4 nuclear reactors 2015-2020.

    Link to article for the doubtful - It’s in Swedish, so you’ll have to use a translator.

    • schroedingershat@lemmy.world
      link
      fedilink
      English
      arrow-up
      5
      arrow-down
      6
      ·
      1 year ago

      Assuming you’re telling the truth that there’s a massive shortfall in December already (a provable lie ) then you are suggesting the solution for an urgent shortfall of around a TWh per year is to build 10GW of nuclear plants which will be ready in 2045 for €300 billion and run them at an operating loss for 10-11 months per year.

      This in order to provide low grade heat which could be stored in a district heating system for a few dollars per kWh for a total cost of about 3% of your suggestion or even in batteries for about 20% of the cost (which would also run at a profit the rest of the year and make the hydro go further).

      Nuke shills say some colossally stupid things, but this really takes the cake.

      • Iceblade@lemmy.world
        link
        fedilink
        English
        arrow-up
        5
        ·
        1 year ago

        Since you couldn’t be arsed to check for yourself before throwing out baseless accusations, here’s a translation of a relevant part from the linked article. I doubt you’ll read it, but it’ll be here for anyone else that stumbles across this thread.

        The past winter was at times dramatic, for example when several nuclear power reactors were shut down for repairs. But thanks to the fact that mainly households had previously reduced consumption clearly in step with the rampant electricity prices, Sweden managed to maintain the power balance even in the worst hour, the so-called peak load hour.

        “But if we had maintained the consumption, we would have had to cut down.”, says Lowina Lundström, Division Manager Systems at Svenska kraftnät.

        The electricity had not been enough

        At that time, the import would not have been enough to cover the electricity demand during the peak load hour on December 16, 2022, between 09:00 and 10:00. The import was then at a maximum of 3,290 MW, approximately equivalent to three nuclear power reactors, which was the highest level to date.

        (Svenska Kraftnät a.k.a Swedish Power Grids is our national power distribution agency)

        Btw, your source is 4 years out of date, and accounts for neither daily nor hourly power balance.

        Here’s an up to date source on monthly power balance.

        Here’s a report on peak loads in various northern european countries.

        Here is an actual relevant source on the topic (again, in Swedish).

        The above figure is taken from this report by SVK.

        • schroedingershat@lemmy.world
          link
          fedilink
          English
          arrow-up
          5
          arrow-down
          2
          ·
          1 year ago

          So the problem was nuclear being unreliable, and you can’t comprehend the idea of picking the worst recent year before dropping demand due to covid (or clicking on the year dropdown or hitting the hourly output).

          • Iceblade@lemmy.world
            link
            fedilink
            English
            arrow-up
            4
            arrow-down
            1
            ·
            edit-2
            1 year ago

            The capacity factor for nuclear power in Sweden (including losses from curtailment) was 83% of installed capacity during 2022, which exceeds the global average for that year (80%), by comparison wind had a capacity factor of 26% for the year. Hence, the issue is not reliability, but rather a lack of capacity. 1700MW (20%) of nuclear has been decommissioned since 2018 (which is why those stats are entirely irrelevant to the current situation). Hence that a the unexpected outage of a single reactor (1160 MW or 17% of total capacity) could have such a large impact.

            Even with that outage, nuclear power remained the energy source with the greatest capacity % during the 22/23 winter (80%), despite being lower during peak demand. “Kärnkraft” is nuclear power.

            So, in summary, you are either clueless regarding our situation in Sweden (I sincerely hope that is the case) or actively spreading misinformation (which would be the more unfortunate option).

            • schroedingershat@lemmy.world
              link
              fedilink
              English
              arrow-up
              2
              arrow-down
              3
              ·
              1 year ago

              Another bullshit attempt at paltering. Capacity factor isn’t reliability. Failing unpredictably when needed and when asserting that it will work then is unreliability. Your own assertion is that the need was for a handful of hours when the nukes failed.

              • Iceblade@lemmy.world
                link
                fedilink
                English
                arrow-up
                2
                arrow-down
                1
                ·
                1 year ago

                Your own assertion is that the need was for a handful of hours when the nukes failed.

                Don’t put words in my mouth, that is quite rude.

                Capacity factor isn’t reliability.

                It is a useful comparison figure to examine reliability. Your inability to comprehend the connection clearly highlights your incompetence on the subject.

                Please, either spend some time educating yourself, or refrain from commenting further on the topic of nuclear power. Your lack of knowledge is causing you to (possibly inadvertently) contribute to the spread of disinformation.

                • schroedingershat@lemmy.world
                  link
                  fedilink
                  English
                  arrow-up
                  2
                  arrow-down
                  1
                  ·
                  1 year ago

                  Please, either spend some time educating yourself, or refrain from commenting further on the topic of nuclear power. Your lack of knowledge is causing you to (possibly inadvertently) contribute to the spread of disinformation.

                  More attempted projection after having your lies pointed out. Pointing out your attempts at disinformation is the opposite. What you are doing is disgusting and intentional.

                  • Pelicanen@sopuli.xyz
                    link
                    fedilink
                    English
                    arrow-up
                    2
                    ·
                    1 year ago

                    So, you’re no longer arguing the topic but the person, do you have any rebuttal for the facts that they’ve presented? Any reason why you should be trusted above SVK?