Real-time generation output in MW grouped by fuel category. One object per row of NYISO MIS public archive CSV report P-63 (http://mis.nyiso.com/public/csv/rtfuelmix/rtfuelmix.csv). DERIVED by API Evangelist from the header row and observed values of a live file fetched on 2026-07-27; NYISO publishes no schema document for this report. Timestamps are rendered by NYISO as MM/DD/YYYY HH:MM[:SS] in Eastern time, not ISO-8601.