The power plant workers, named as Dick and Philip, are characters appearing in Pokémon: Indigo League.
Season 1: Indigo League
These two workers were trying to repair the problem, which caused the electricity to be shut down. After the Grimer retreated and Muk was captured, the workers explained that Pikachu's problem was that it stored too much electricity and was feeling weak, causing Magnemite to follow him.
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