• WoodScientist@lemmy.world
      link
      fedilink
      arrow-up
      2
      ·
      3 days ago

      The key is that, watt for watt, new solar right now costs about a quarter what new fission does. The cost difference has gotten that ridiculous. There are other options as well of course. We can use that superabundant power in the summer to split water and make lots of hydrogen, and use that for power in the winter. We can even use it to pull CO2 from the air, convert it to synthetic fuels like synthetic methane, and just run our old natural gas plants for power in the winter.

      And we’re easily headed to a world where watt for watt, solar is 1/10th the cost of new fission. At that point, even at high latitudes, it makes more sense to use solar power even in winter. I mean sure, if you’re at such extreme latitudes that you have months of total darkness, then solar will have a problem there. Maybe small modular reactors make sense for those niche applications. But even then, those areas are probably better relying on synthetic fuels made from solar power plants at lower latitudes. Or even better, those higher latitudes also get very long days during the summer months, so they can make their own hydrogen during the summer and run their grids off tanks of that in the winter. Or, if nothing else, we can always just run some long power cables north-to-south.

      • perestroika@slrpnk.net
        link
        fedilink
        arrow-up
        1
        ·
        edit-2
        13 hours ago

        I mean sure, if you’re at such extreme latitudes that you have months of total darkness, then solar will have a problem there. Maybe small modular reactors make sense for those niche applications.

        Currently, solar still makes economic sense, but from April to October. Lots of it was built rather fast, now the adoption is slowing since the grid can’t accept it everywhere.

        Consequently, summer is when oil shale miners rest and prepare for the next season.

        Since the goal is to get rid of mining oil shale, big plans exist to install a lot of wind power. Sadly, this has gone embarrassingly slow, and it cannot cover winter consumption, and there is not enough storage.

        As a result, some companies and building out storage, but only enough to last a few hours.

        …and in the next country southwards, there is a huge gas reservoir that could accept methane, enough to last the whole winter, but nobody has a good enough handle on methanation to renewably produce a considerable quantity and store it there. :o

        With regard to reactors, it seems likely that getting one would take 10 years and the local country here doesn’t even have legislation built out for nuclear power. They’re drafting it. Starting from zero is quite slow.