> As far as solar goes, clearly coal is cheaper than solar in Nigeria because that's what they're mostly building now. If we want to find out what's cheaper in

> As far as solar goes, clearly coal is cheaper than solar in Nigeria because that's what they're mostly building now. If we want to find out what's cheaper in order to decide what it is more reasonable to build, we can't rely on the fact that something is actually being built as an argument. It's the other way around - first we decide what's better, then do it, otherwise whatever we do would be right since we're doing that. Or - in this case - if you assume that those calculations were made and it was found that the coal is cheaper - and that's why they're building coal plants - then there is a question of discrepancy (coal is more expensive lately than solar according to <sources>), which needs to be addressed, otherwise it might be assumed that a mistake was made. > Regulations and subsidies are what make solar cheaper than coal in the US. Doesn't coal industry also receive subsidies, and aren't those subsides comparable or bigger than subsidies for solar? I'm not sure; are you?