The various technologies that capture ambient energy have slowly moved from being more expensive to less expensive than fossil fuels in many, though not all situations.
Who would have thought that America - home of the Oil Baron - would give renewables an even greater advantage, through restricting the availability of fossil fuels? The environmentalist George Monbiot is clearly amazed at that development: see -
He concludes -
“The attack on Iran is not the way any of us wanted this to happen. But the unintended consequences of Trump’s pointless war could help sink Trumpism everywhere – and the corrupt and filthy industry that props it up.”
Of course, as Steve has pointed out, the war with Iran has restricted the availability of much more than oil and gas.