For example if governments fight wars to keep oil supplies running do we count that as a subsidy? Is diplomacy to keep a gas pipeline open a subsidy? Is building roads to transport fossil fuels a subsidy? What about building national grids to transport renewable electricity?
No fuel system on earth operates without infrastructure subsidised by the government.
The exceptions include the Federal power marketing agencies [1] charged with marketing power from the hydro dams built during the Great Depression. While their initial cost was born by the country, their ongoing operation and maintenance costs are recouped from Transmission Access Charges.
[1] https://en.wikipedia.org/wiki/Western_Area_Power_Administrat...
Environmental benefits, unfortunately, haven't been enough for them to win. The financial battle is really the thing that will tip the scales.