2/"Therefore the wind production tax credit covers 30% to 60% of wholesale electricity prices. Wholesale prices for electricity in 2017 ranged from approximately 2.9 cents to5.6 cents per kilowatt hour."

What have those subsidies accomplished? One thing subsidies have done is help bring down the cost curve for wind and solar energy. Today we see

dramatically lower costs for both wind and solar.

Without subsidies going forward, Skelly believes

costs for both wind and solar will be about 3.0

cents per kilowatt hour in the U.S. Before long, wind and solar will no longer need subsidies but fossil fuel production wlll and then the enormous cost of capping old wells and stopping leaks, cleaning up the sites and trying to correct at least some of the environmental damage caused. There will always be a need for fossil "fuels"; the unique hydrocarbon molecules they have are valuable in and of themselves. But burning them, damaging the environment we all live in, making countless people sick and paying for their care by burning those fuels makes no sense at all. It will take a while to transition to solar, wind, and nuclear power but unless we're really stupid and don't mind a few rich people getting ever richer, then it will be our future. Hopefully, no more taxpayer money will be needed, and power will cost us less.

Note that solar and wind power costs have dropped dramatically since the articles I refer to were written.

Thanks for your reply. You forced me to do more research :)