Is There Alternating Current in Harry's World?

[Barry]

No: HPFGUIDX 184206

 > Sarah:
> > I think it's more that witches and wizards pose a threat to 
> > electricity.

The whole magic/electricity business makes no sense in Potterverse.
The WW is entered in central London. Either WW or central London
should not be working. Platform 9 3/4 should prevent Charing Cross
station from working. 

Consistency has to be put aside for the sake of story.
Barry