Because even his idiotic voters wouldn't intentionally drive up their power bill. Well, some might, but most wouldn't. But if it's harder for consumers to make that informed choice his friends in industry can flood the American market with inefficient crap and his voters will probably blame Biden or immigrants or Jewish space lasers for their increased power bill.
These are the same assholes that bray about having a "tire fire" during Earth Day or the people that say they turn on every light in their house during Earth Hour.
Whether they do this shit or not? Who knows. But they love the idea of irritating "liberals" by such actions.