One-size-fits-all solutions never work. People, their cares, and their environment are different and require different solutions or a different mix of solutions.

In the case of energy, some places are band work well for solar. Some places are windy and work well for windmills. Some places have some of each and it is helpful to have some of each because it tends to be windier at night and in the winter when there is less sun for solar and there is more sunlight in the summer and daytime which works better with solar. Neither works very well if you don't have batteries to store energy produced when it is abundant to use when none is being produced.

It doesn't matter the subject. People in rural areas have different needs than city people. People in one country have different needs than people in another. People in the mountains have different needs than people in the lowlands & plains. The free market allows people to use the solution that works best for them.