Solar panels sell pretty good for how low the electricity price is. The main reason for that is that solar energy is a lot better for large portions of the US than it is in Europe. See: https://globalsolaratlas.info/?c=32.518447,-36.524111,3

Texas is one of the leading points of growth of Solar at the moment, interestingly, combined with it's low natural gas and fossil fuel cost.

The fact that Germany invested a ton in solar is kind of ridiculous compared to how poorly suited they are for it.