{ "target": "price", "country_code": "NL", "zone_key": "NL", "model_name": "lightgbm-quantile", "model_version": "20260820180935", "feature_names": [ "hour", "quarter", "day_of_week", "day_of_year", "month", "is_weekend", "is_holiday", "is_morning_peak", "is_evening_peak", "sin_hour", "cos_hour", "sin_day_of_week", "cos_day_of_week", "sin_day_of_year", "cos_day_of_year", "lag_1h", "lag_2h", "lag_3h", "lag_4h", "lag_24h", "lag_48h", "lag_7d", "lag_14d", "diff_1h", "diff_2h", "diff_24h", "diff_7d", "acceleration_1h", "ema_4step", "ema_12step", "rolling_std_4step", "rolling_mean_24h", "rolling_std_24h", "rolling_min_24h", "rolling_max_24h", "rolling_mean_7d", "rolling_std_7d" ], "n_estimators": 180, "learning_rate": 0.04, "num_leaves": 31, "training_rows": 24571, "start_year": 2023, "end_year": 2026, "metrics": { "mae": 8.31427937440668, "rmse": 21.563839706949032, "wape": 0.0827477543324724, "pinball_p10": 2.183956377490973, "pinball_p90": 2.3808193938193893, "interval_coverage": 0.7671768153695865, "winkler_score": 45.64775771310362, "mape": 284.51606952320145 }, "baseline_mae": 42.45602918430479, "calibrator": { "is_fitted": true, "q_correction": 0.011827664909091595, "target_coverage": 0.8 } }