# Data Dictionary - European Weather-Driven Power Cost Anomaly - daily, cleaned Parquet

**Units:** vary by `variable` - read the per-row `unit` column (overall: mixed).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | ENTSO-E power-market zone |
| `ts` | timestamp (UTC) | Day |
| `variable` | str | weather_driven_load_mw / weather_driven_cost_eur / cost_anomaly_z |
| `value` | float | Value - MW for load, EUR for cost, z-score (unitless) for cost_anomaly_z |
| `unit` | str | Unit (mixed - see variable) |
| `res_min` | int | Native resolution (1440 = daily) |

*Source: ENTSO-E Transparency Platform (derived).*