Why not just spend this money and put solar panels on industrial buildings or state owned buildings?
>Why not just spend this money and put solar panels on industrial buildings or state owned buildings?
Proof of concept. Varying solar tech research to find unexpected gains. Maybe it turns out that putting solar panels on roads is actually extremely cost-effective, when you properly adapt the solar panels to road conditions?
and there's a lot more area coverage in state-owned buildings without solar than in state-owned buildings with solar, or that will get solar in a reasonable timeframe. It's not like we're running out of rooftops and need to find alternatives.
Even if the government did manage to cover all of their rooftops, there's still plenty of residential rooftop area that can easily be converted with proper incentives. I'm pretty sure we can generate enough solar power to handle all of the needs that solar is suitable for before we come anywhere close to running out of rooftops.
Even if I'm mistaken about how many open roofs there are and how much solar capacity they could handle, there are a lot of other and better options before you get to "put PV cells on the ground underneath semis".