For example we have enough wind power in the United States to replace all of the fossil fuel and nuclear power sources in the United States.
Athough wind does not always blow when you need it, it would seem that in a power grid you will always have wind blowing somewhere to put electricity into the grid.
The cost of wind power at 4 cents per kilowatt hour is competitive with the cost of electricity generated by coal and nuclear energy and less than the cost of generating electricity using natural gas.
What is preventing us from replacing our fossil fuel power plants and our nuclear power plants with electricity from renewable non carbon sources?