Muswellbrook – Tamworth Line is a 330kV overhead line from Muswellbrook, New South Wales, Australia, to Tamworth, New South Wales, Australia.

The project is expected to be commissioned in 2026.


Muswellbrook – Tamworth Line is an overhead line that will be operated by TransGrid. The line will carry alternating current (AC) through double circuit cable.

Approximately $12.9m was financed by the authorities to undertake the construction works of the project.

Muswellbrook – Tamworth Line project development status

The construction works on the Muswellbrook – Tamworth Line project will be commenced in 2025 and commissioning is expected in 2026.

About TransGrid

TransGrid (TransGrid), is a provider of electricity network and solutions. The company offers infrastructure services which include feasibility and estimation studies, option analysis, grid connection for new generators, asset redevelopment and consultation services; and telecommunication transmission services. It also provides connections and modifications, network planning, demand management and co-location services. The company supplies power through a network of high voltage overhead transmission lines, underground cables, switching stations and transmission structures.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.