AGL and Idemitsu prepare for the next stage of feasibility on 250 MW Bells Mountain pumped hydropower project

AGL and Idemitsu Australia Resources (IAR) start the preliminary phase of the feasibility study for the proposed 250 MW Bells Mountain pumped hydro project at Muswellbrook in New South Wales. 

The preliminary engineering study began in 2019 to determine whether the project is technically feasible, provide cost estimates for both construction and operation, and assess the required planning and approval processes.

Pumped hydro works by circulating water from the lower reservoir in a mine void into an upper storage site. Upon demand, water is released and uses gravity to turn turbines and generate electricity.

Following completion of the preliminary study AGL and Idemitsu intend to proceed with the completion of a full feasibility study including a targeted geotechnical drilling program, detailed design of the project, contractor engagement, and securing the critical environmental approvals.

The full feasibility study is the next phase towards the potential completion of the project in 2027.