Total AC active power, signed with export negative. The sign convention is the whole difficulty: half the devices in the corpus report export as positive, and a fleet mixing both conventions produces a site total that is quietly wrong rather than obviously broken.
Total AC active power. Signed: export is negative.
active_power_kwEach of these is a real tag as the device or controller emits it, taken from the Forge mapping corpus. This is the table that does not exist anywhere else — the reason cross-vendor telemetry is hard is visible in a single column.
| OEM / profile | Raw tag as the device emits it | Confidence |
|---|---|---|
| SunSpec 124/802 | WAC_WP_ACPowerACPowerAC_Power+1 more spelling | 1.00 |
| SunSpec 201/202 | WAC_WP_ACPowerACPowerAC_Power+1 more spelling | 1.00 |
| SunSpec 203/204 | WAC_WP_ACPowerACPowerAC_Power+1 more spelling | 1.00 |
| Schneider | kW_TotP_TotalTotal_kWkW_TotalReal_PowerActivePower | 1.00 |
| Victron | Grid/PowerBattery/Power/Ac/Grid/L1/Power/Dc/Battery/Power | 1.00 |
| SolarEdge (meter) | M_AC_Power | 1.00 |
| Sungrow | Total active power | 1.00 |
Every row above is an exact match — a deterministic pack entry or a confirmed corpus mapping — so all of them carry confidence 1.00. That is not a rounding: these are the two exact-match layers, and a tag that resolves here never reaches the embedding or LLM layers. Mappings resolved by the LLM layer do carry sub-1.0 confidence, but those are per-tenant and are not published here.
The canonical field is not just a name. It is a contract about units, sign convention and plausible range, enforced on the way in and re-checked at read time.
| SI / canonical unit | kW |
| Accepted input units | MW W hp kW |
| Converted on ingest | MW W hp → kW |
| Physics bounds | -100000.0 to 100000.0 kW |
| Measurement type | instantaneous |
No mapping table to maintain, and no per-vendor branch in your code. The same request shape works for every OEM in the table above.
Read alongside this one.
spindle_speed_rpm spindle_load_pct program_name part_count feed_rate