By comparison, the largest share of wind and solar in any country is only 43% in Denmark. Germany comes in second only 33%. https://en.wikipedia.org/wiki/List_o

By comparison, the largest share of wind and solar in any country is only 43% in Denmark. Germany comes in second only 33%. https://en.wikipedia.org/wiki/List_of_countries_by_renewable_electricity_production https://en.wikipedia.org/wiki/List_of_countries_by_renewable... So if 70% is insufficient to demonstrate feasibility, then solar and wind are even worse off.