This is incorrect. France has 135 GW of all electric power generation installed.That is 2 orders of magnitude different.
https://en.m.wikipedia.org/wiki/Electricity_sector_in_France
I used the data from: https://www.world-nuclear.org/information-library/country-pr... which dates from 2019, and has become worse than the data from wikipedia that dates from 2009.
135 GW is the total electricity production in France in 2009. Of which 80.1% were from nuclear power, or 108 GW.
The situation has worsened, nowadays we only have 70% of nuclear power, ie. 61 GW.
This is only the power installed. In terms of energy produced, it's even worse. At least, the 61 GW can produce almost 24h/24h ie. 1464 GWh of energy, while the solar panels work at best half the time, and actually much less, and a lot of their energy is also lost in the transformation required (storage in battery, building and recycling the batteries, etc). That may be acceptable for mobile applications, but to power factories, or static computers, this is a waste.
But my point is that is far from enough to replace carbon based energies, and that we're too late to build the number of nuclear plant that would be needed world wide.