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Cake day: July 16th, 2023

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  • Yup, it’s hard to predict what the mix will look like, but 100% solar would be a very costly solution for sure.

    I used to be very pro nuclear, and I still think it could have been a big piece of the puzzle, but I do worry we’ve missed the boat, it could’ve been the first wave of decarbonisation 20 (or more) years ago, I’m not sure how well it can compete growing from almost nothing now with the renewables eating all the easy money. nuclear plants need to run 100% to be successful, and renewables have dropped a bomb on the concept of baseline demand. Maybe as we kill gas we’ll have to start giving massive bonuses to on demand power that isn’t pumping co2, but the absolute lid on that market is the price of storage, which is high enough now, but will drop, it’s unclear how long the gap for nuclear will exist there.

    Certainly willing to be wrong though, there’s lots of unknowns with nuclear, quite possibly it could be multiple times cheaper if only we’d invest into it properly.



  • I’m certainly not arguing nuclear is a panacea that everyone in all the governments have somehow missed (even ignoring the risks mentioned its only a potential fit for a small subset of the grid these days, there’s no way building a 100% nuclear grid would make sense today).

    The point I’m making is that currently there are energy production needs we effectively can’t fulfil with renewables because the costs would be impractical (eg the last 10% of usage on dark windless nights at the wrong time of year). Some cases do fit nuclear better currently (not all, nuclear usually wants constant usage, can’t help with surges).

    Nobody really cares about that though for 2 reasons: 1. There’s plenty of opportunities that renewables still can fill and 2. The cost of storage is projected to drop a lot over time, which should fill in the gaps and squeeze out many of the last opportunities for nuclear.

    Quite possibly by the end the remaining slice where nuclear could fit will be so thin it can’t actually sustain an industry (and given the industry has been half dead for decades, it’d take a big win to justify reviving it), so yeah, at the moment it looks like lots of risks and questionable rewards. Nonetheless the current prices aren’t really the problem, it’s just that things are risky, and projected to get worse over time, so why invest?

    Ironically it’s not that different to the fossil fuel industry, just with a lot less existing infrastructure.


  • If it was a matter of half the price then nuclear would be the clear winner. Paying double to get stable power rather than variable power is currently a clear win.

    Nuclear has a lot of baggage on top of being more costly (eg public fears, taking a lot longer to get running, building up big debts before producing anything, and having a higher cost risk due to such limited recent production), if it was just a simple “pay twice the price and you never need to worry about the grid scale storage” then nuclear would be everywhere.