Solar now being the cheapest energy source made its rounds on Lemmy some weeks ago, if I remember correctly. I just found this graphic and felt it was worth sharing independently.
No it doesn't. Cheap solar is great but even if it was $0, you'd still need some other tech to provide electricity when the sun is down. So it's either gas, batteries, nuclear, etc. but you can't just use solar alone.
And until batteries get good enough, nuclear is the cleanest option we have.