In the United States, they've had an investment tax credit that covers 30% of capital costs for both wind and solar. For wind, there's also a production tax credit. I'm less familiar with the subsidies for hydro or for marine, but the ITC has been the single largest subsidy for renewables in the United States in comparison to Canada. We have not had anything comparable to date.
On May 1st, 2018. See this statement in context.