NEM Aggregation (SCE)

[gvl]

TOU-EV-1 has 11c rate until noon which is nice for those days with early trips when you're home by 10am so you get a couple of hours to fill up at 11c for your afternoon driving, plus it offers lower on peak rates, so even if your household meter is on TOU-D having a separate EV TOU meter can be beneficial. In most cases, however, installing one is cost prohibitive. I happen to already have one. As for NEMA with solar we pretty much agreed that a separate EV TOU meter provides no benefits when combined with TOU-D-A on domestic and overall is likely to be worse than just charging from a non-aggregated household meter.

[sensij]

The old TOU-EV-1 can combine with schedule D or old TOU without super low off peak rate, but not anymore!!

You are really mixed up in your understanding. TOU-D-TEV was a single meter tou plan, and has been replaced by TOU-D- A, B, and T. TOU-EV-1 is the tariff that applies if EV charging is on a 2nd dedicated meter, and is unaffected by that change. The exclusionary language you are citing says you can't put EV-1 tariff on the primary meter for your home, and you can't put a -D-? tariff on a dedicated EV meter. That is fine, and is not new.

OP's question was/is reasonable, and there may actually be a minority of usage cases out there where what was suggested makes sense. However, it is really hard to identify those cases due to the confusing proportioning language, and TOU-D-A is such a good deal for solar right now that it is hard to justify looking very seriously at anything else unless there are known reasons why that choice would be sub- optimal.