Mind you higher powers just need a licensed electrician to sign off and usually also have them permanently wire it in as those setups won't need an AC side plug

Mind you higher powers just need a licensed electrician to sign off and usually also have them permanently wire it in as those setups won't need an AC side plug so the costs of essentially a generator hookup over a fixed tie-in isn't worth it, and they require notifying the local grid. Might be that beyond 10kWp the grid can tell you sorry-capacity-not-ready (but the grid will have to fix that soon, there are rules) but yeah.