Unfortunately, Wind Power isn't the panacea that they claim it is.
Because of the way the power grid works, it's a juggling act, constantly trying to match supply with demand to avoid dips and surges, the variable production of wind turbines is treated as part of the demand side of the equation.
What happens is, a benchmark level of power is provided from large plants, and other plants are kept burning to be able to provide the maximum likely power (peak load) needed as it varies through the day. As demand drops, those plants are diverted 'off line' from power generation, and as demand rises they are brought back on to resume generating the needed power. These plants burn fuel whether or not they are producing electricity.
In other words, these peak load plants must continue burning fuel when demand falls or wind production rises, because either trend may reverse at any time. Because the wins turbines are out of the control of the grid's dispatchers, (along with user demand), the wind turbines' only effect is to bring the spinning standby plants in and out of production. But, don't forget, the plants continue to burn their fuel. And the additional fluctuations of wind power add to the cost and inefficiency of that burning.
A further irony is that because an increase in wind power capacity is seen on the grid as an increase in demand fluctuation, it requires dedication of other grid capacity to cover it. Rather than reduce, wind power may actually increase the use of other fuels.
Add to this, the monies for massive infrastructure improvements, and turbine maintenance.