Power sources for disposer and dishwasher??

Yeah, I’m thinking of adding a garbage disposal and a dishwasher to this pole barn. Silly question… What powers these 2 things? I know the disposal uses a standard switch, but does it have a plug in somewhere?? I know the dishwasher needs a water in and a water discharge, but what powers it? Are they 110, 220, or something else? Don’t worry, I’m not actually doing the work; a contractor will be. I’m just seeing what needs to be set up.
I think dishwasher models vary so you’ll want to check out the model washer you are getting to be sure. Disposers are usually 110 but some of the bigger commercial models may use 220.
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