My focus isn't on which type of energy is cheapest. An energy grid that is not predictable is worthless. Wiknd power, solar power, are great complements, but a grid using only those is not viable. Hydroelectric is great, but limited. Geothermal is not really viable in mainland Europe.
I'm worried about a realistic transition from fossile fuels to non fossile fuels. Nuclear is realistic, renewable as a main source in Europe is utopic and unrealistic.