Here's a char that shows what goes into electricity prices in Germany: https://de.wikipedia.org/wiki/Datei:Strompreis-zusammensetzu...
25% is electricity generation, 23% is transmission and bookkeeping, 7% electricity tax, 16% sales tax, 21% EEG-Umlage (renewables reallocation charge), 6% concession levy, and <2% other taxes.
So if you add up all the taxes and levies, they make up half the cost (52%).