I am not trivializing the destruction, but how many electric generation stations would PEI with it small size and population have?
And likely all of the electrical distribution is above ground.
More susceptible to wind damage but much faster to fix than damaged underground cabling
Say two feeder corridors gong east and west, from each generator since for fuel source means plant likely close to the coast.
So it is easy to see how all power would be out with huge winds and storm surge this storm walloped the area with.