Research from LUT University and 14 additional leading international universities suggest that the new system would be based largely on solar and wind energy, energy storage, sector coupling, and direct and indirect electrification of almost all energy demand. An energy system that is 100% based on renewables has emerged to become scientific mainstream.
They won’t. You should rather focus on convincing the people getting money coffers from them.
Politicians? Problem is they are, as you said yourself, in in for the money, and nobody can pay more than the barons, so that would be a first time in history of bourgeoisie states if happened otherwise. Good luck though.