Germany started in the year 2000 with guaranteed, high prices to providers of solar/wind energy and that their feeding into the electrical grid has preference over other providers. Additionally they employed grants for citizens deploying solar on their roofs.

That massively raised the electricity prices, resulting in the world's costliest electricity.

Around 24% (!) of the German electricity price is a Renewable Surcharge[1]. With a >$350 billion/year power industry revenue it is easy to see that Germany's contribution to kickstart large scale solar and wind power generation can hardly be overstated.

[1] https://en.m.wikipedia.org/wiki/Electricity_sector_in_German...