Can you share where those numbers are from? I'd like to run a similar calculation on my own country.
Also I'm curious if you know how geography fits into this (like sunlight hours and stuff).
Also I'm curious if you know how geography fits into this (like sunlight hours and stuff).
Geography absolutely matters since seasonal dips in solar generation is basically impossible to fix cost effectively with storage at more northerly latitudes as storage only makes financial sense when you can cycle it daily rather than yearly.
The contiguous US is much further south than Northern Europe so it has an easier time of it. But you ideally want wind too since it is anti-correlated with solar.