Wholesale electricity price (USD / MWh) - United States (CAISO SP15 zone) - EIA STEO - Monthly
This series is part of the dataset: US Wholesale electrictiy prices (monthly)
Download Full Dataset (.xlsx)Latest updates. In the CAISO SP15 zone, the average wholesale price of electricity was 34.44 USD / MWh in January 2026, compared to 36.95 in December 2025. This marks a reduction of 6.79 percent.
Sample. In this monthly series, there are 216 data points. The series covers the span of time going from January 2010 to December 2027.
History. Have a look at a few summary statistics we computed on the full sample: the price recorded a minimum of -0.08 USD / MWh in April 2024; it peaked at 257.11 in December 2022; it had a mean of 43.54.
Latest values
| Date | Value - USD / MWh |
|---|---|
| 2027-10-31 | 31.68629 |
| 2027-11-30 | 34.47342 |
| 2027-12-31 | 41.10842 |
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Not for investment purposes. Financial data shared on this web site are not meant for investment purposes or other financial decisions. Users should seek expert advice and perform their own independent due diligence before making any financial commitments.
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.