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Snowy 2.0: first of three TBM’s arrives at Port Kembla for Australia’s biggest Hydroelectric Project to be built by Webuild

The first large tunnel-boring machines (TBM’s) for Snowy 2.0, the largest renewable energy project in Australia, has arrived at Port Kembla. The TBM is one of three that Snowy Hydro Limited has ordered to build the project.

Snowy 2.0 is a pumped-hydro expansion of the existing Snowy Scheme’s network of nine hydro power stations. It will underpin the country’s transition to a low-carbon emissions future.

Arriving aboard the AAL Shanghai, the components of the TBM – some as heavy as 174 t – are being lifted from the vessel and onto a special trailer that will transport them to storage, ready for transport to the project site. The operation is a complex one, given the size of the components.

Built by CREG in China, the TBM is 135 m long and 11 m in diameter. Its special feature is its ability to excavate a tunnel with a descendent of 9% for 2,660 metres to access the underground cavern where the project’s power plant will be built.

The project is being built on behalf of Snowy Hydro by Webuild in the Future Generation joint-venture with its U.S. subsidiary Lane and local partner Clough. Exploratory construction work has been underway for more than 12 months with about 500 people already busy on the project.

The Main Access Tunnel (MAT) is expected to start excavating by year-end. Once the TBM has completed the tunnel, it will continue excavating the tailrace tunnel of 5,800 m.

The Snowy Scheme generates about a third of the renewable energy in Australia’s National Electricity Market (NEM). Snowy 2.0 will add another 2,000 MW of on-demand energy generation and 175 hours of large-scale storage to the NEM.

Along with infrastructure in sustainable mobility, renewable energy is part of Webuild’s focus on helping clients achieve Sustainable Development Goals set by the United Nations. More than half of the new orders it acquired in 2019 related to hydro power, the first source of renewable energy in the world, responsible for 71% of all the energy produced by renewable sources. Webuild’s current projects provide clean energy to millions of people throughout the world while avoiding harmful emissions by about 14.5 million tonnes of CO2 a year. Its strategy to invest heavily in sustainability has seen it rise in the ratings of global players that provide Environmental, Social and Governance (ESG) solutions by as MSCI (Morgan Stanley Capital International) ESG Research, Vigeo Eiris (Moody’s Group), CDP (formerly Carbo Disclosure Project) and ISS-Oekom.

Source: Webuild

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