Wholesale electricity price (USD / MWh) - United States (Midcontinent ISO Illinois hub) - EIA STEO - Monthly
This series is part of the dataset: US Wholesale electrictiy prices (monthly)
Download Full Dataset (.xlsx)Latest updates. At the Midcontinent ISO Illinois hub, the average wholesale price of electricity stood at 35.68 USD / MWh in September 2025, versus 49.13 in August. This marks a decrease of 27.38 percent.
Sample. There are 204 records overall in the monthly time series presented in the plot above. The series covers the time span going from January 2010 to December 2026.
History. Check out a few simple statistics we calculated on the whole sample: the price hit a peak of 110.22 USD / MWh in August 2022; it reached a trough of 20.64 in April 2020; it averaged 38.01.
Latest values
| Date | Value - USD / MWh |
|---|---|
| 2026-10-31 | 39.39337 |
| 2026-11-30 | 41.82639 |
| 2026-12-31 | 46.22109 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Wholesale electricity price |
| Country or region | US - Midcontinent ISO Illinois hub |
| Economic concept | Price |
| Data type | Nominal price |
| Seasonally adjusted | No |
| Frequency | Monthly |
| Unit | USD / MWh |
| Source | U.S. Energy Information Administration (EIA) |
| Source type | Government Agency |
| Data licence | Public domain |
| Measure type | Level |
Series in the same data set
Discover the other time series included in this data set.