Except money is not the only factor. Solar and Wind may be cheaper, but they are paid for upfront while oil and gas are effectively subscription based. Nations and companies like having the ability to cut off and sanction poorer country’s power grid for instance, since even just the threat of it can keep them from doing anything too radical. While it may be a factor in politics, i really don’t see OPEC and the executives of major oil companies letting go of that power lightly.