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 electricity price was 42.83 USD / MWh in August 2025, compared to 74.56 in the previous month. This marks a decrease of 42.56 percent.
Sample. There are 204 observations overall in the monthly time series presented in the figure above. The period covered by the series goes from January 2010 to December 2026.
History. Here's a glimpse of a few descriptive statistics calculated on the whole sample: the price had a mean value of 37.99 USD / MWh; it recorded a maximum of 110.22 in August 2022; it reached a trough of 20.64 in April 2020.
Latest values
| Date | Value - USD / MWh |
|---|---|
| 2026-10-31 | 39.22739 |
| 2026-11-30 | 41.44829 |
| 2026-12-31 | 45.77396 |
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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 |