The Hunter Power Project (HPP), Snowy Hydro’s fourth fast-start and on-demand gas power station, is entering its final phase of development.
The project, located in NSW, is poised to play a crucial role in Australia’s energy transition as coal plants are phased out.
With 660 megawatts (MW) of available dispatchable capacity and 34 hours of onsite fuel storage, the HPP is expected to enable approximately two gigawatts (GW) of new renewable capacity.
This significant contribution underscores the importance of gas-powered electricity generation in supporting Australia’s shift towards renewable energy sources.
According to Snowy Hydro, its construction progress has been substantial since the project reset in August 2023.
Major civil works have been completed, and critical turbine and generator parts have been installed and aligned.
The Power Islands, which house the gas turbines and generators, are expected to have their major electrical components connected by September 2024.
The project has also made strides in developing its Balance of Plant systems, completing four large tanks and initiating diesel system testing.
Additionally, the Kurri North Switching Station, built by Snowy Hydro but to be managed by Ausgrid, is nearing handover.
The HPP has contributed significantly to local employment and skills development. Since June 2024, 12 new apprenticeship positions have been created in various trades.
At its peak, the project employed approximately 600 workers, with 60 per cent sourced from the local area.
Despite progress, the project has faced challenges.
Extended periods of inclement weather over the past year have impacted the schedule.
To ensure power production as soon as possible, the project has prioritised schedule over cost considerations.
The HPP is scheduled to begin its testing and commissioning phase in December 2024, starting with one of its two generators operating on diesel fuel.
Each unit can generate 283 MW when running on diesel. The project aims to have both generators fully operational, capable of running on both gas and diesel, within a few months of the initial testing phase.
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