**Source:** HESTIA Team, [Ember Electricity Yearly Data](https://ember-climate.org/data-catalogue/yearly-electricity-data/).

**Dataset:** Ember Yearly Electricity Data

**Licence:** [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). A HESTIA mapping onto the Ember energy sources.

**Citation:** Ember (2025), Yearly Electricity Data.

Maps each single-source HESTIA `electricity` term to its [Ember energy source](/Geographies/region-ember-energySources-lookup.csv), so the per-source emission factors can be looked up and weighted by the country/year Ember share.

- `term.id`: the single-source `electricity` term.
- `ember`: the Ember energy source (matches the column names of `region-ember-energySources`).
- `renewable`: whether the source is part of the renewable / low-carbon mix (`electricityGridRenewableMix`). Note this follows the existing mix definition, which includes nuclear and hydro.