[taneq]

Sounds great. None of those devices need to be talking to anything outside the home, though.

Even peak shaving can be done by simply checking the AC supply voltage. If it's starting to sag, ease off some of the heavier appliances. If it's higher than expected, now's a good time to burn some extra power.

[alfor]

I agree, they don’t really need the internet.

[oriolid]

KNX already does this without internet. The downside is that it's expensive and just as proprietary as the internet-connected smart gadgets.