If only there were some form of cheap, widely manufactured power generation technology that didn't use turbines... Are they really going to wait until 2030 to get more turbines rather than invest in solar?
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.