I've heard that argument a lot but .. that's not how the electricity market is actually structured, at least in the UK.
Both wind farms and nuclear power plants end up with a "strike price", which is effectively a collar option around the spot price so that revenue is guaranteed. It can in some cases result in wind farms having to pay money back if the spot price goes up too much.
> Had we built more and smaller nuclear power plants decades ago
The "learning rate" for reactors appears to be negative: over time, they get harder to build. Possibly as people discover more ways in which things could go wrong. Hinckley Point C is over time and budget.
Both wind farms and nuclear power plants end up with a "strike price", which is effectively a collar option around the spot price so that revenue is guaranteed. It can in some cases result in wind farms having to pay money back if the spot price goes up too much.
Separately there is the capacity auction https://www.emrsettlement.co.uk/schemes/capacity-market/ and a fast frequency response market (which batteries are starting to appear in).
> Had we built more and smaller nuclear power plants decades ago
The "learning rate" for reactors appears to be negative: over time, they get harder to build. Possibly as people discover more ways in which things could go wrong. Hinckley Point C is over time and budget.