Data
This site uses a committed data cache refreshed nightly via GitHub Actions.
Refresh cadence
Datasets are refreshed nightly and committed back into the repository. If cache files are missing in development, run npm run data:refresh.
Datasets
| Name | Last updated | Source |
|---|---|---|
| eiaPricesLatest | 4/4/2026, 8:14:16 PM | U.S. EIA Open Data API v2 |
| eiaPricesMonthly | 4/4/2026, 8:14:16 PM | U.S. EIA Open Data API v2 |
| emissionsState | 4/4/2026, 8:14:16 PM | EPA eGRID 2022 — State-level CO₂ emission rates |
| solarYieldByState | 4/4/2026, 8:14:16 PM | NREL PVWatts — State-average solar capacity factors |
Generated: 4/4/2026, 8:14:16 PM
Use this data
All tools use these official datasets to provide accurate calculations.