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Perhaps there is a blackout and the buildings are running on generator power until primary power is restored. A collective of buildings might stable a few electric Pokemon to keep the emergency battery charged in situations like this.
These guys are low on the hierarchy and just tell you what they're told to say. There may or may not be a blackout but as far as the worker is concerned he's getting paid to stand there and tell people they can't proceed due to a blackout. It's just like driving through an area where roadworks signs are everywhere but there's nobody around.