alt Hacker News> the economics of nuclear power, which is already it's primary weakness.
That affects ~0.5% of the yearly production in France, it's not a "primary weakness", it's the opposite, it's so low of a problem that the state simply doesn't care enough to fix it.
They are saying economics is the primary weakness i.e. nuclear costs more than renewables even if you don't have fancy cooling methods that would increase the cost further.