ERCOT hub and load-zone wholesale electricity prices, anomaly flags and Texas fixed-rate retail medians by TDU, January 2024 to November 2, 2026

Official ERCOT day-ahead (hourly) and real-time (15-minute) settlement point prices for the seven hubs and eight load zones, 2024-01-01 to 2026-11-02, with UTC and Central timestamps and daylight-saving flags (25-hour and 23-hour days handled), 5-minute SCED prices for the latest days, daily aggregates (mean, minimum, maximum, DAM-RT spread, basis to the North Hub), a reproducible rolling robust-statistics anomaly table (price spikes, negative prices, basis blowouts, DAM-RT divergences), a West Hub case study for October 31, 2026 beside ERCOT's public notices, and Power Hopper's Power to Choose retail fixed-rate medians by delivery utility. Data are ERCOT's public reports and PUCT's Power to Choose export, compiled by Power Hopper under CC BY 4.0. Wholesale prices are not retail offers. Not endorsed by ERCOT or the PUCT. Scripts and QA included.