All three which I would argue we are woefully behind on in the US for EVs and solar.
There should be a ten year subsidy on new cars in the range of 10000$ that decreases 10% per year if they are EVs or PHEVs with 40 mile all electric ranges.
There should be a tax on new ice cars that increases by 4% of the retail car cost every year.
Of course we should have a similar increasing tax on gasoline, but that is more regressive.
2) subsidies
3) financing
All three which I would argue we are woefully behind on in the US for EVs and solar.
There should be a ten year subsidy on new cars in the range of 10000$ that decreases 10% per year if they are EVs or PHEVs with 40 mile all electric ranges.
There should be a tax on new ice cars that increases by 4% of the retail car cost every year.
Of course we should have a similar increasing tax on gasoline, but that is more regressive.