Solar is by far the cheapest source of energy ever fielded, followed closely by wind. Nukes are among the most expensive still in common use. If you are hearin

Solar is by far the cheapest source of energy ever fielded, followed closely by wind. Nukes are among the most expensive still in common use. If you are hearing that nuke power is cheap, you are being lied to. Just now, nukes are about even with solar and wind backed with natural gas if, but only if, you ignore their capital cost. But solar and wind costs are still falling. Once renewables have been built out enough to be able to displace other energy sources, they will need to be supplemented with storage. (Before, there is no point: charging storage from fossil fuels would be counterproductive.) Storage cost is on the same exponential free-fall we saw for solar and wind, so that when time comes to start building out storage, renewables + storage will be cheaper than solar alone, today.