No, definitely not cheaper. Also not a viable alternative to not burning.
That said, we’re probably going to need it eventually to try to undo even a small amount of the damage we’ve done
Problem is that it’s not being used to undo the damage - it’s being used to justify doing more.
Solar - even with batteries is significantly cheaper under almost any circumstances… Location, scale, photovoltaics vs thermal - it only tends to affect how much cheaper. Wind is cheaper too, but less so on average.
Funny how pulling power out of thin air is cheaper and better than digging it out of the ground, shipping it all over the place and burning it.