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sugar_in_your_tea@sh.itjust.works ⁨8⁩ ⁨months⁩ ago

Yeah, just getting nuclear waste disposal and whatnot started up would be very expensive, despite having a ton of space to put said waste, since there are likely all kinds of regulations around moving such waste between states and territories.

That said, Australia surely needs some electric backbone for overnight use, and the goto solution for renewables is batteries, which are quite expensive at scale.

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Zagorath@aussie.zone ⁨8⁩ ⁨months⁩ ago
So, what you’re talking about here is essentially the concept of “baseload power”, which is a very common talking point in anti-renewables conversation, including by well-meaning people who have simply come to accept it because of how often it gets mentioned in the media and in online conversations.

But it turns out that we have known for over a decade that a mix of different renewable technologies do not need any base-load power stations to operate reliably.

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- sugar_in_your_tea@sh.itjust.works ⁨8⁩ ⁨months⁩ ago
  From your article:
  
  concentrated solar thermal with 15 hours of thermal storage 15-20%; and the small remainder supplied by existing hydro and gas turbines burning renewable gases or liquids. (Contrary to some claims, concentrated solar with thermal storage does not behave as base-load in winter; however, that doesn’t matter.)
  
  The real challenge is to supply peaks in demand on calm winter evenings following overcast days. That’s when the peak-load power stations, that is, hydro and gas turbines, make vital contributions by filling gaps in wind and solar generation.
  
  So basically the concentrated solar w/ thermal storage acts as a battery. I’m interested to know what the costs look like (is that the salt reactor thing I’ve heard about). And if you have lots of hydro available, then yeah, you can probably get away with it, and may even be able to pump water so the hydro station can act as a battery. However, hydro isn’t practical in many areas, and moving electricity long distances may be too lossy.
  
  I’m interested in the development of nuclear microreactors, which can be transported where they’re needed. I think they could potentially replace hydro in areas where it’s not available. So as areas transition to more renewables, these could operate as a backup in case simulations don’t match reality.
  
  I’d love to go 100% renewable, I just don’t think that’s feasible at the moment. But I could absolutely be wrong, I may need to read up on the latest energy storage options.
  
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  - psud@aussie.zone ⁨8⁩ ⁨months⁩ ago
    Rubbish dump methane to electricity is cheap and effective. The Canberra mugga lane tip has had a pilot plant, not sure if it’s still running
    
    Hydro on the mainland is pretty much just Snowy Hydro. There was a project from a former government to make that pumped hydro. I don’t think it has yet been finished. I don’t know whether the project has been cancelled
    
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  - SpaceCowboy@lemmy.ca ⁨8⁩ ⁨months⁩ ago
    You can extract hydrogen from water with electricity. You can store hydrogen in tanks. Burn hydrogen to produce electricity similar to natural gas, except without any carbon in the equation.
    
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    sugar_in_your_tea@sh.itjust.works ⁨8⁩ ⁨months⁩ ago
    The main problem is storage since hydrogen is so small. But yeah, it’s absolutely a great idea as a battery of sorts, I just don’t know what the costs look like.
    
    I think mobile applications make more sense though, so things like trucks and forklifts. Those really benefit from quick refuels, so they could fit into places where fossil fuels dominate today.
    
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