In 2011, post-Fukushima, Germany decided to replace nuclear power by renewables. Renewables are intermittent; back-up must be supplied; Germany is using coal for this. New coal-fired plants have been built and more are planned. Renewable energy is expensive, residential electricity prices have escalated. See: https://instituteforenergyresearch.org/analysis/france-germany-turn-coal/

As for CO2 emissions – there was a drop after German unification as East German inefficient plants closed. Since then emissions are almost unchanged. See here https://notalotofpeopleknowthat.wordpress.com/2016/11/04/german-fossil-fuel-consumption-trends/

Germany has large reserves of lignite and could produce electricity very cheaply, but the insistence on reducing CO2 emissions for an unproven hypothesis is pushing up domestic electricity prices and actually having no effect.

Other countries should learn from this and carefully review the PROVEN science behind the CO2 global warming hypothesis (none). Put climate research back into universities until it is understood. Generate electricity by the cheapest means possible – help industry, help the poor, cut subsidies to inefficient renewables – if they are so good then the market will buy.

One place that has not learnt from Germany is the state of South Australia (SA). The government of SA decided to switch to renewables and began closing its efficient coal-fired power stations, even blowing some up in a show of intent.
http://www.theaustralian.com.au/news/nation/demolition-job-last-sa-coalfired-power-station-blown-up/news-story/fa7f5083f7b2315acf612d6ddab14639

The result has been that SA has had two major blackouts. SA relies on coal-fired imports from neighbouring states to cover the times when wind and solar generation is too small. Retail electricity prices in the state have soared and businesses have closed with the loss of many jobs.

Australia has huge coal supplies and accounts for 30% of the world’s coal trade.
https://www.industry.gov.au/resource/Mining/AustralianMineralCommodities/Pages/Coal.aspx

Australia sits on a resource of cheap, reliable energy, yet SA, because of ideology, is switching to high-cost, unreliable renewables. Even if the CO2-causes-warming hypothesis is true, the reduction of SA’s coal usage would contribute 0.000.., degrees of less warming.

Meanwhile 1600 new coal-fired power plants are planned around the world. https://endcoal.org/tracker/