Load-following NPPs in France claim power output ramps as much as 5%/min if necessary, though typical ramps are kept below 1.5%/min.
Certain French NPPs routinely decrease power output 50% at night.
It’s true that load-following is mostly not done with nuclear in the US, but this is policy/common practice/habit, not a technical limitation of nuclear power plants.
Also, I mentioned pumped hydro storage to point out specifically that battery technology really isn’t effective enough yet. It still doesn’t scale well, it’s too expensive for large grids.
This is not correct.
A Brief Survey of Load-Following Capabilities in Modern Nuclear Power Plants
It’s true that load-following is mostly not done with nuclear in the US, but this is policy/common practice/habit, not a technical limitation of nuclear power plants.
Also, I mentioned pumped hydro storage to point out specifically that battery technology really isn’t effective enough yet. It still doesn’t scale well, it’s too expensive for large grids.
It is, you just proved it yourself:
“typical ramps are kept below 1.5%/min.”
Compare that with batteries or pumped hydro.
That’s plenty fast enough for a power grid.
1.5% of 900MW is 13.5MW. That’s plenty of power output scaling per minute.
I think you’re getting peaker plants, e.g gas fired confused with load following.
Nuclear plants are not used as peaker plants. you incorrectly stated that they are.