{ "region": "NYISO", "name": "New York ISO (NYISO)", "state": "NY", "weekLabel": "August 15--21, 2026 (Peak Summer)", "weekStart": "2026-08-15", "weekEnd": "2026-08-21", "horizonHours": 168, "startHour": 0, "source": "Illustrative modeled summer baseline (calibrated to historical NYISO summer shape)", "accessDate": "2026-08-22", "dataType": "illustrative", "assumptions": "Illustrative modeled balancing authority generation by fuel. 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