4 ms·

I agree, there are better options for mass scale long term energy storage than batteries, e.g. (green) hydrogen, methane

• bryanlarsen 4mo ago
  Pumped hydro is currently the cheapest long term energy storage by a significant amount.
  • tcfhgj 4mo ago
    not so cheap anymore when you want to add lot's of storage capacity
    • bryanlarsen 4mo ago
      That's exactly when pumped hydro shines. Increasing the storage reservoir capacity is cheap. It's the turbines and infrastructure that's expensive, but that doesn't change if you're only increasing the capacity.
      • tcfhgj 4mo ago
        All the cheap storage reservoir capacity is already used - from where are you going to get more?
        • bryanlarsen 4mo ago
          All the cheap storage capacity with natural flow have been taken. Pumped hydro doesn't need natural flow, because it uses pumps. All it needs is a height differential. Here's 22,000 in Australia alone. There are millions worldwide. https://arena.gov.au/knowledge-bank/anu-stores-an-atlas-of-pumped-hydro-energy-storage-the-complete-atlas/ https://arena.gov.au/knowledge-bank/anu-stores-an-atlas-of-p...
          • tcfhgj 4mo ago
            so why hasn't the storage capacity not been taken?