Bottleneck to PV is battery capacity. For Solar to meet peak demands and replace fossil fuels there has to be storage capacity and likely a fair bit of investment into grid infrastructure to meet volatile productions. Getting utility companies (a highly regulated monopoly in most cases) to do anything is a slow and painful endeavor.

The more time/location dependent energy sources we add to the grid, the more valuable and necessary on-demand energy to buffer with will be. Same goes for a steady producer like fusion/fission: an increasing value proposition as these renewables are added.

We should definitely be doubling down on PV, but stay aware of other options as it comes with trade offs.