Looks out of window, yup coal plant still running as base load / backup for wind.
Power generation of wind may be the cheapest, but it generally is not factored into the equation, that other power plants need to be ready to take up the slack when demand rises or generation drops. But since that is the problem of the network operator, not the power plant operator, this is generally handled under "transmission costs". The network operators pay reliable power plants run on standby and these are commonly nuclear, coal and gas power plants. This is then partially subsidized, a subsidy that is commonly not associated with the wind power generation.
Ignoring the financial aspect of it all, as long as coal and gas power plants serve as base load providers for wind and solar, no ecological gain is achieved. The problem is that big coal power plants need the better part of a day to go from cold to operational, but need to switch into the network within seconds. The result is that they run in standby, which still produces 75% of the CO2 but adds no power to the Grid.