Vocabulary

This page collects the core terms used throughout the Predico documentation and platform. Use it as a quick reference when reading the guides, the API docs, or the Participation Rulebook — terms in bold elsewhere in the docs map back to the definitions below.

Term	Meaning
Market Owner	Owner of resources or a grid (e.g. wind farm owner, TSO) that funds forecasting sessions.
Forecaster	Registered participant who submits forecasts and competes for rewards.
Market Session	A window during which Market Owners publish challenges and Forecasters submit forecasts.
Market Challenge	A single forecasting opportunity inside a session, with its own target variable, horizon and gate.
Gate Closure	Deadline after which no more submissions are accepted for a challenge (authoritative field: gate_closure).
Horizon Category	intraday, day-ahead (D+1), or extended (D+N). See Sessions & Challenges.
Forecast Variables	Currently quantiles Q10, Q50, Q90.
Ensemble Forecast	Aggregate forecast derived from all forecasters' submissions.