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> storage? The technology that is absolutely exploding globally in recent years. How is storage "exploding globally" when the bulk of long-term grid storage is

> storage? The technology that is absolutely exploding globally in recent years. How is storage "exploding globally" when the bulk of long-term grid storage is still provided by pumped hydro, a technology that's built out? Short-term high-flow storage can be interesting in combination with any inflexible source (either nuclear or intermittent renewables - for one thing, it can solve the "plant has to shut down and restart every day" point you mention) but is only a small part of the problem. > Dunkelflautes and cold spells are often correlated. A mild January sun coupled with an arctic high pressure extending south. The point is that the correlation may be imperfect enough that nuclear can meaningfully contribute to addressing that problem, whereas extending intermittent renewables to "99%" of the grid cannot. (To be sure, there's also some limited upside from diversifying the geography of renewable sources, but that doesn't extend to anywhere near "99%".) If a shortfall remains, it can be made up by some combination of rarely-operated peaker plants with cheaper CAPEX, plus some demand response/load shedding, especially from industry.

ViewTrick1002 1y ago
You seem to rely on very outdated information? Is this why you are so hellbent on wasting trillions on dead end handouts to the nuclear industry? In terms of GW battery storage has already over taken pumped hydro. In terms of GWh we are a few years out. https://reneweconomy.com.au/battery-storage-is-about-to-overtake-global-capacity-of-pumped-hydro/ https://reneweconomy.com.au/battery-storage-is-about-to-over... Now you want to have a nuclear plant to solve for the "when cold weather and dunkelflautes" does not correlate use case? Do you realize how far into "emergency reserves" you have receded because you can't accept the reality of modern new built nuclear power?
- zozbot234 1y ago
  Your link says "battery storage and pumped hydro will have complimentary roles to play - batteries focusing on the flexibility and speed and ability to provide system services, and pumped hydro on dealing with longer storage requirements, such as extended periods of low wind and solar output." It acknowledges that battery electric storage is short-term only, meant to smooth out daily peaks.
  - ViewTrick1002 1y ago
    At current costs batteries are best suited for daily cycling. A few years ago batteries were best suited for multiple cycles per day on the ancillary markets. Given the recent auctions in China we are starting to see batteries where a cycle every second or third day is enough. It is essentially optimistic technobabble for the technology losing out about a potential issue coming in 10-15 years as we decarbonize. Please do explain why we should lock in a solution for that today instead of solving it with the technology at hand when we get there.

ViewTrick1002 1y ago

You seem to rely on very outdated information? Is this why you are so hellbent on wasting trillions on dead end handouts to the nuclear industry? In terms of GW battery storage has already over taken pumped hydro. In terms of GWh we are a few years out. https://reneweconomy.com.au/battery-storage-is-about-to-overtake-global-capacity-of-pumped-hydro/ https://reneweconomy.com.au/battery-storage-is-about-to-over... Now you want to have a nuclear plant to solve for the "when cold weather and dunkelflautes" does not correlate use case? Do you realize how far into "emergency reserves" you have receded because you can't accept the reality of modern new built nuclear power?

zozbot234 1y ago
Your link says "battery storage and pumped hydro will have complimentary roles to play - batteries focusing on the flexibility and speed and ability to provide system services, and pumped hydro on dealing with longer storage requirements, such as extended periods of low wind and solar output." It acknowledges that battery electric storage is short-term only, meant to smooth out daily peaks.
- ViewTrick1002 1y ago
  At current costs batteries are best suited for daily cycling. A few years ago batteries were best suited for multiple cycles per day on the ancillary markets. Given the recent auctions in China we are starting to see batteries where a cycle every second or third day is enough. It is essentially optimistic technobabble for the technology losing out about a potential issue coming in 10-15 years as we decarbonize. Please do explain why we should lock in a solution for that today instead of solving it with the technology at hand when we get there.