[GH85Carrera]

With the energy needed and used to mine the components and make the solar cells, build the plant, and produce the fuel the payback in carbon emissions alone will be longer than the solar cells last. It is just an unfortunate fact of physics. Porsche started as a design company, and still just design many products for other companies. Lets hope they can invent some new technology to be more efficient. They are not using my money to try, so power to them. I hope they have a successful implementation. I am not betting on it.