# Attribution

- E-REDES - Distribuição de Eletricidade, E-REDES Open Data Portal.
- OpenStreetMap contributors; Portugal extract supplied by Geofabrik.
- REN Data Hub and public Portuguese transmission-network publications.
- ERSE / PDIRD-E and PDIRT public planning documents.
- Eurostat GISCO administrative boundary data.

PT60 transforms and combines these sources; it is not an official publication
of any source provider or a representation of the live Portuguese grid.