Tips Electrical ?

Tomorrow I go to the workshop because of my smoking servo pump. Maybe. also immediately my electricity problem, which occurs more often in urban traffic.

Does anyone else have any tips on what it can be if you often have too little energy? (Bundesstrasse, Autobahn no problems) Is it just the old alternator's fault or are there other power eaters, does anyone have experience with it?

Personally, I suspect that the alternator is age-weak. For example, if you are a child. the window lifter flickers the light.

Many greetings