Its very strange to me. On the one hand, it seems like the perfect product. Its incredibly cheap nowadays, saves the planet, free energy, no effort basically to install.

Energy experts seem to be in love with it. Lots of articles (especially on this sub) on how solar is just on the brink of a huge boom, though these are always dated some time in the past....

However, it is still so massively dwarfed by oil and coal and natural gas. Any time you look up the hard numbers, solar is at most 1% of global production? Additionally, I have encountered several instances where those trying to sell it don't seem to see the value proposition (one example here: https://www.reddit.com/r/sales/comments/4gt88m/lets_talk_about_solar_real_solar_not_pretend_solar/?)

What are these specific reasons why solar is being held back? Specifics would be much appreciated, as well as resources for more info (books, blogs, etc) detailing whats WRONG with solar, not whats right.