I am clueless in this field, but solar seems to be unreliable and yield fraction of power required. Do you have a suggestion on something to read and learn more?

Reliability: complete solar deployment includes some form of power storage. There are many variations, but chemical battery technology is improving the fastest, so it's gaining the most ground.

Amount of power: World solar power generation capacity is in the terawatts and rapidly increasing, there's no issue with its potential ceiling. As a bonus, it tends to work best on land that's useless for other purposes.

Google china solar deployments to read about the logistics end of it