There is that big solar boiler Electric plant in the Arizona desert that they are abandoning. The one with all the mirrors.
They could move that to Switzerland.
They could only make chocolate in the summer but it would be SO GREEN!
You're thinking of the bird-torching Ivanpah Solar Power Facility in California.
There is a thermal solar energy plant in Arizona--the Solana Generating Station. It is a parabolic trough plant that uses molten salt thermal energy storage. That way the excess energy captured during the day can be used at night. No batteries needed.