Here is some info on German residential electrical prices—
Germany is one of the most expensive countries worldwide for electricity supply. In 2018, German customers were charged 0.33 U.S. dollars per kilowatt-hour. Although production is cheap, additional taxes and fees increase the final cost. The renewable surcharge is one of such additional fees hiking up end costs. In 2019, this surcharge made up 21 percent of the final composition of power prices for German households. This levy is to support Germany’s renewables expansion, such as wind, solar, biomass and hydropower installations.
https://www.statista.com/statistics/418078/electricity-prices-for-households-in-germany/
Here is a report on German WHOLESALE electrical prices. I am still looking for RESIDENTIAL prices.
Average monthly electricity wholesale price in Germany from January 2019 to July 2022(in euros per megawatt-hour)
https://www.statista.com/statistics/1267541/germany-monthly-wholesale-electricity-price/