Some of the really well done electric engines in TS2018 featured electric discharges from the overhead powerlines with sound. It really made the experience so much more immesive. I would love to see this in TSW's electric engines, most likely the German ones. I am not 100% familiar with why there is voltage discharge while the pantograph is connected but It makes sense if you think about it. I know the older style electric locomotives defenetly had this happen quite regularly maybe not the really modern ones but that can still be a possiblity. This would bring the game to life more I can say.