Texas Electricity Index

The Texas Electricity Index measures wholesale electricity prices on the ERCOT grid, which serves roughly 90% of Texas's load. Blending 15-minute real-time settlement point prices from the major trading hubs, the index offers a live signal that captures price spikes, scarcity events, and the daily rhythm of the Texas power market.

The index is built from ERCOT real-time settlement point prices (SPPs) published at 15-minute resolution. The headline value is the average RT price for the latest interval across the monitored trading hubs, expressed in $/MWh.

The system-wide offer cap bounds real-time prices in ERCOT and can jump by orders of magnitude during periods of scarcity. The gauge above positions the current average against that full range. Constituent hubs and update cadence are detailed on the Methodology page.

The Texas grid is getting harder to read. Load is growing, the resource mix is shifting toward wind and solar, and prices that sit near $30/MWh for weeks can jump a hundredfold in a single afternoon. Daily headlines capture the extremes; averages smooth them away. Neither tells you what power actually costs right now.

The Texas Electricity Index captures the wave: one number, updated every 15 minutes, anchored to the settlement prices where the market actually clears.