Transmission Cost Database

AEMO’s Transmission Cost Database is produced and maintained to ensure that up to date transmission network augmentation cost estimates inform the Integrated System Plan. The database has been prepared by expert consultants and through consultation with industry stakeholders.

AEMO consulted on Transmission Cost Database Version 3.1 through the 2025 Electricity Network Options Report consultation. Stakeholders can register here to receive a copy of the AEMO Transmission Cost Database.