The estimated cost and timeline for the Snowy 2.0 pumped hydro project have once again increased, highlighting ongoing challenges with the management of major government-led infrastructure in Australia’s energy sector. The latest figures place the project’s cost between AUD 22.2 billion and AUD 25 billion, approximately double the estimate provided in 2023 and nearly 12 times the original forecast from 2017. The projected completion has been delayed by one year, with commissioning now expected in late 2029, extending the project’s timeline to eight years behind the initial schedule.
Snowy Hydro has invested AUD 11.1 billion as of March 2026, meaning over half the planned budget remains to be spent. Analysts and energy sector experts warn that further cost overruns and delays are likely. The contract is led by construction firm Webuild, which some observers suggest holds significant leverage over the government due to limited alternatives and the absence of credible termination options. These dynamics are raising concerns about the government’s ability to control expenditure and progress.
The ambitious project, designed to provide around 2.2 gigawatts of pumped hydro storage capacity, is a key component of the current government’s renewable energy strategy targeting significant emissions reductions by 2030. However, critics argue that the delays and increased costs undermine the feasibility of meeting these goals. They also contend that lower-cost alternatives, such as expanded wind, solar, or gas-powered generation, could offer more immediate and cost-effective solutions to Australia’s energy needs.
Current estimates suggest that comparable capacity could have been achieved through the installation of over 15 gigawatts of solar, 6 gigawatts of wind, or 10 gigawatts of gas generation at a similar or lower cost. Gas-fired plants, in particular, are noted for their faster deployment and lower capital expenses, despite ongoing fuel costs. Some experts suggest redirecting remaining funds from Snowy 2.0 toward gas-supported and renewable generation would yield better economic returns.
Snowy Hydro maintains that the financial risks are not entirely borne by taxpayers, citing financial structuring to mitigate exposure. Nonetheless, as a government-owned entity, any cost overruns ultimately impact public finances and energy consumers. Transparency around cost assumptions and independent assessments has also been called into question, with calls for full disclosure of studies underpinning the project’s business case.
The project’s governance has attracted scrutiny, particularly regarding the composition of the Snowy Hydro board, which currently lacks members with deep private-sector experience in managing large infrastructure projects. The recent appointment of former Liberal leader Sussan Ley, who does not bring relevant project management expertise, has been criticized as a politically motivated decision rather than one based on technical competence.
Observers highlight that the challenges facing Snowy 2.0 reflect broader issues in how successive governments, both Coalition and Labor, have approached energy infrastructure—initially greenlit despite significant risk and later hindered by political imperatives and shifting policy priorities. The project’s difficulties underscore the complexities of large-scale, government-led energy investments and raise questions about future energy market interventions.
Ultimately, Snowy 2.0 serves as a cautionary example of the risks involved when political considerations override economic and technical assessments in infrastructure planning, particularly in sectors as critical as energy supply and climate response.