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Italian parliament votes for return to nuclear energy

908 points · 818 comments · geox

  1. jacquesm · · focus · HN ↗
    I've seen quite a few SMR proposals over the last couple of years and not a single one that dared to address the whole cycle from deployment to eventual decommission as a function of the total revenues - costs to operate. Most of these projects seem to be made to bilk investors or governments rather than to actually produce power. The day Italy produces the first KWh that is net profitable to the operators without counting subsidies I will be highly amazed, and that's assuming they get to operational in the first place.
    1. asmodeuslucifer · · focus · HN ↗
      I agree, I tell everyone who will listen that no country, not Russia, China, Japan, France, USA etc has ever made nuclear power profitable. And you can't blame it on the environmentalists in China and Russia.

      That being said, many countries consider it a national security issue not to be held hostage to foreign oil.

      1. Hammershaft · · focus · HN ↗
        That... doesn't seem true?

        <a href="https:&#x2F;&#x2F;m.youtube.com&#x2F;watch?v=cbeJIwF1pVY" rel="nofollow">https:&#x2F;&#x2F;m.youtube.com&#x2F;watch?v=cbeJIwF1pVY

        Here&#x27;s an Illinois professor going through the economics compared to a gas plant.

        Nuclear power can become dramatically cheaper than other energy sources in the long run.

        1. rstuart4133 · · focus · HN ↗
          He mixed some units there, mostly by translating Chinese costs into OECD&#x2F;USA costs. China does indeed take 5 years to build a reactor. That&#x27;s what happens when you build a couple a year for decades. After 20 years, that might be true in the OECD&#x2F;USA too, but for now you are looking at over 10 years, $10B&#x2F;GW, and over 8% interest.

          None of that is the real issue though. The real issue is for at least 8 hours a day, but probably more like 16 hours a day, renewables can generate power at well under 1&#x2F;2 the price of what he calculated. So they won&#x27;t sell the 9 units of power he forecast - it will be at best 4.5 units, and the nuclear plant even at his optimistic assumptions never makes money.

          If you look at South Australia [0] - they are at 80% renewables now. At 80%, the average wholesale is cheaper than what nuclear can supply. The percentage will go higher, probably to around 90%..95%. They are and will achieve that with very limited (ie, cheap) storage.

          But obviously that isn&#x27;t 100% - so it becomes a question of what can fill the gap of 60 days or so a year the cheapest. Nuclear has no hope. Generating and storing ammonia using excess renewables and burning it when needed is one of the most expensive forms of energy available - but if you only need to do it for 60 days a year, it is still far cheaper than nuclear, because nuclear&#x27;s primary cost is it&#x27;s interest bill, not fuel.

          The good professor paints gas fuel cost as a disadvantage. But when you are only burning it 60 days a year, then compared to paying nuclear&#x27;s interest bill 365 days a year it&#x27;s cheap.

          [0] <a href="https:&#x2F;&#x2F;www.energymining.sa.gov.au&#x2F;consumers&#x2F;energy-grid-and-supply&#x2F;our-electricity-supply-and-market" rel="nofollow">https:&#x2F;&#x2F;www.energymining.sa.gov.au&#x2F;consumers&#x2F;energy-grid-and...

          1. filleokus · · focus · HN ↗
            This must at least partly be region-dependent right?

            In the darker northern parts of Europe, the German transition to renewable haven&#x27;t really been a cost-saving success story (right?).

            From my (very) casual Swedish vantage point, the wind build out here was a very government subsided race to zero marginal prices that barely helped anything?

            1. jltsiren · · focus · HN ↗
              Most of Finnish wind capacity was built without subsidies. The demand was saturated at ~25% of total generation, after which the market started building solar. Wind power is more cost-effective at these latitudes, but solar generation is currently more valuable, as it correlates less with existing renewables.
              1. coryrc · · focus · HN ↗
                That only makes sense if you&#x27;re burning hydrocarbons to heat your homes; about 1&#x2F;3 of total energy use is space heating. Shifting to heat pumps and more wind before wasting money on solar panels at high latitudes is better ROI on energy independence and carbon reduction.
                1. jltsiren · · focus · HN ↗
                  Heat pumps already became popular a long time ago. Electricity is so widely used for heating, that the difference in electricity consumption between the coldest winter days and July nights is almost 2.5x. While there are some old legends of Finnish (or maybe Sami) wind wizards, we still haven&#x27;t figured out how to generate wind power on demand.

                  In any case, it&#x27;s up to the market. If you believe it&#x27;s possible to make money with wind &#x2F; solar &#x2F; nuclear power in Finland, you should be able to get permits in a reasonable time. Right now, those building solar are investing more than the others.

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