Wholesale electricity price (USD / MWh) - United States (CAISO SP15 zone) - EIA STEO - Monthly
This series is part of the dataset: US Wholesale electricity prices (monthly)
Download Full Dataset (.xlsx)Latest updates. In the CAISO SP15 zone, the average wholesale price of electricity was 3.50 USD / MWh in May 2026, versus 2.32 in April 2026. This represents an increase of 50.86 percent.
Sample. In the monthly time series presented in the chart, there are a total of 216 data points. The span of time covered by the series goes from January 2010 to December 2027.
History. Take a look at some descriptive statistics we computed on the full sample: the price was equal on average to 42.84 USD / MWh; it hit a peak of 257.11 in December 2022; it recorded a bottom of -0.08 in April 2024.
Latest values
| Date | Value - USD / MWh |
|---|---|
| 2027-10-31 | 23.6705 |
| 2027-11-30 | 25.75304 |
| 2027-12-31 | 29.88529 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Wholesale electricity price |
| Country or region | US - CAISO SP15 zone |
| 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.