Those taxes and levies are used to finance the renewables, so it makes no sense to leave them out of the picture.

These renewables produce a lot of power that isn't needed during their peaks, which gets sold at low or negative prices on the market, yet is compensated for with the full subsidy.

During their troughs, you need another source of power, usually natural gas, which is expensive, or coal, which raises the baseline production and therefore exacerbates the peak production problem. The result on CO2 emissions is pretty damning.

This is the danger of picking "winning technologies", you are telling the market to waste resources. Instead, you need to incentivize the market for your actual goal and then let it do its thing. Putting a price on CO2 would've incentivized all sorts of technologies that reduce net CO2 emissions.