How many nuclear power plants would we need to get us to 100%

[DetlefK]

1. Renewables can deliver cleaner energy at the same price, but...

there are two problems:
- The power grid would have to be modified from few big power plants to many tiny power plants. (Major overhaul of infrastructure and protests how this ruins the landscape).
- Renewable sources deliver energy in a seasonal way, sometimes too much, sometimes too few. We still need a way to either store the surplus-energy with high efficiency or we have to couple this with a steady source of energy, like a conventional power plant.