Wind power has used the economic route to be viable

In major wind power producing countries like Denmark and Germany, wind power is promoted through preferential tariffs and a larger incentive is given to wind farms with high plant load factor.
In Denmark, wind power had a fixed preferential feed-in tariff. Today, it is sold there in a liberalized electricity market at competitive rates. In addition to the market price, wind investors get an environmental premium of approximately 0.013