Trust foundation

Data Sources

Public and official data sources used for Energy Bill Lab rate benchmarks and appliance reference data.

Last updated

Official source standards

Energy Bill Lab uses official public datasets for electricity-rate information, primarily U.S. Energy Information Administration (EIA) Form EIA-861M monthly retail sales reports.

Published rate pages identify the primary source, dataset name, geographic scope, unit, publication date, and the date Energy Bill Lab validated the snapshot.

Data validation & integrity

If an upstream import fails, the product maintains the last validated snapshot and displays its update date. It does not replace valid information with empty, partial, or invented values.

Rate benchmarks are periodically synchronized to ensure accuracy while preserving historical comparison baselines.

Data update history

May 2026 Rates — Imported: July 27, 2026 | Records: 50 states + District of Columbia + U.S. national baseline | Source: EIA Form EIA-861M monthly residential retail-sales dataset | Status: Published