Data changelog
What data changed on this site and when. One line per update. Subscribe with the RSS feed or download CHANGELOG.csv.
Update log
| Date | Dataset | What changed | Data period | Status |
|---|---|---|---|---|
| 2026-10-02 | EIA-861 annual survey | 2024 final data loaded: utility prices, outages (SAIDI/SAIFI), net metering, retail choice. | 2024 | final |
| 2026-10-02 | EIA-861 annual survey | 2025 early release loaded into the utility history table (flagged preliminary). The 2025 final file is expected later and will replace it. | 2025 | preliminary |
| 2026-10-02 | EIA retail sales (monthly) | Monthly price and sales by state and sector loaded, 2023-01 to Jul 2026. | 2023-01 to 2026-07 | monthly, revised by EIA |
| 2026-10-02 | EIA Short-Term Energy Outlook | U.S. price forecast by sector loaded and shown as EIA's own forecast. | 2025-2027 | forecast |
| 2026-10-02 | EPA eGRID | Emission rates by state loaded. | 2023 | final |
| 2026-10-02 | NOAA degree days and storm events | State degree days (1991-2020 normals, 2015-2025 yearly) and storm event counts loaded. | 2015-2025 | final |
| 2026-10-02 | Census ACS | Income, housing and population for states, counties and places loaded. | 2023 | final |
| 2026-10-02 | Site | Data downloads: JSON mirror (data/api/v1), embeddable widgets, this changelog and the RSS feed added. | site |
What comes next
- EIA-861 2025 final: not yet published by EIA. The site now shows the 2024 final file and marks 2025 values from the early release as preliminary. When the final file is out it will be loaded, logged here and the 2025 rows will change status to final. EIA sets the date, not us.
- EIA monthly sales: new months are loaded at the start of each month; the latest months are revised by EIA later.
- EPA eGRID, NOAA and Census ACS: loaded when a new release comes out.
Related
Data downloads, embeddable widgets, price alerts (coming soon), method and limits.