storage, backfeed, load, evse and/or pv3p ct can be reported in /ivp/meters measurementtype

[catsmanac]

Envoy can report a 3th CT for storage when used with a combiner box. Seen it with fw 8.2.127, but may exist before then one, not sure.

[
    {
        "eid": 704643328,
        "state": "enabled",
        "measurementType": "production",
        "phaseMode": "split",
        "phaseCount": 2,
        "meteringStatus": "normal",
        "statusFlags": []
    },
    {
        "eid": 704643584,
        "state": "enabled",
        "measurementType": "net-consumption",
        "phaseMode": "split",
        "phaseCount": 2,
        "meteringStatus": "normal",
        "statusFlags": []
    },
    {
        "eid": 704643840,
        "state": "enabled",
        "measurementType": "storage",
        "phaseMode": "split",
        "phaseCount": 2,
        "meteringStatus": "normal",
        "statusFlags": []
    }
]

And /ivp/meters/readings will have a 3th section for the storage CT

[catsmanac]

And as of 8.3.1700 (or some version earlier) there's also measurement types backfeed, load, evse and pv3p.

json
        {
          "eid": 704644352,
          "state": "enabled",
          "measurementType": "backfeed",
          "phaseMode": "split",
          "phaseCount": 2,
          "meteringStatus": "normal",
          "statusFlags": []
        },
        {
          "eid": 704644608,
          "state": "disabled",
          "measurementType": "load",
          "phaseMode": "split",
          "phaseCount": 2,
          "meteringStatus": "normal",
          "statusFlags": []
        },
        {
          "eid": 704644864,
          "state": "disabled",
          "measurementType": "evse",
          "phaseMode": "split",
          "phaseCount": 2,
          "meteringStatus": "normal",
          "statusFlags": []
        },
        {
          "eid": 704645120,
          "state": "disabled",
          "measurementType": "pv3p",
          "phaseMode": "split",
          "phaseCount": 2,
          "meteringStatus": "normal",
          "statusFlags": []
        }