Historical UI Load Data

Historical UI Load Data

Load Data Updated for the July 22, 2026 SS LRS RFP

ISO Peak Contribution reported values SS and LRS 2007-2026 (updated 6/14/26)
UI Customer Counts by Rate Class and Supply Type through May 31, 2026 (updated 06/12/26)
UI Standard Service Load Asset 10394 ISO upload data (initial) through March 2026 (updated 06/12/26)
UI Standard Service Load Asset 10394 ISO upload data (reconciliation) through February 2026 (updated 06/12/26)
UI Standard Service Segment Data - (initial) 2017 through March 2026 (updated 06/12/26)
UI Standard Service Segment Data - (reconciliation) through February 2026 (updated 06/12/26)
UI LRS Load Asset 12080 ISO Upload Data (initial) through March 2026 (updated 06/12/26)
UI LRS Load Asset 12080 ISO Upload Data (reconciliation) through February 2026 (updated 06/12/26)
Migration Percentage by Supply Type and Segment by Month for – May 2026 (updated 06/12/26)

Historical Load Data

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