# Data Dictionary - European Renewable Cannibalisation Index - monthly, cleaned Parquet

**Units:** all `capture_ratio` values are in **ratio**.  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Bidding zone |
| `ts` | timestamp (UTC) | Month |
| `capture_ratio` | float | Renewable capture ÷ average price (ratio) |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (monthly) |

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