The dataset contains national and BMU-Level 0-14 day ahead wind forecasts for all the windfarms which are used to produce NESO's national day ahead incentive wind forecasts available [here](https://www.neso.energy/data-portal/day-ahead-wind-forecast). The forecasts are based on evaluated Operational Capacity, which is a deterministic value based on recent actual production levels of that BMU, captured from SCADA telemetry (Operational Metering).