News

JOIN US FOR SNOWY 2.0 COMMUNITY INFORMATION SESSIONS

08/03/2024

If you’re interested in the latest updates from the Snowy 2.0 project, come along to information sessions being held throughout the Snowy Mountains this month.

The Snowy 2.0 delivery team, led by Snowy Hydro, is hosting events in Talbingo, Tumut, Tumbarumba, Adaminaby and Cooma, with opportunities to find out more about the project, ask questions and provide your feedback.

These in-person events will cover a range of topics including:

project news and construction activities
engineering innovations and manufacturing
traffic management, environment and safety
accommodation, recreation access and other local issues;
local suppliers, jobs and training on Snowy 2.0.

Snowy Hydro CEO Dennis Barnes said it was essential local people were updated about progress on Snowy 2.0 and that they understood the significance of the project.

“What’s being constructed right here in the mountains is a critically important renewable energy project that will help maintain Australia’s grid security and reliability well into the future,” Dennis said.

“It is a large and complex project that’s also generating jobs and significant investment in regional areas.

“We’re committed to keeping our local communities informed about Snowy 2.0 and responding to any concerns. We are available to answer questions at our information sessions so I encourage people to come along to hear from the project team directly.”

The Snowy 2.0 community information sessions are held twice yearly. Some are drop-in sessions, with the chance to speak one-on-one with project team members from Snowy Hydro and principal contractor Future Generation Joint Venture. Other events feature a formal presentation followed by community Q&As.

Community information sessions schedule:

Date	Town and location	Time
Thursday 14 March 2024 Thursday 14 March 2024	Talbingo shops Tumut River Brewing Co	12pm – 2pm 6pm – 7.30pm
Friday 15 March 2024	Near Tumbarumba IGA, The Parade	12pm – 2pm
Wednesday 20 March 2024	Adaminaby Bowling Club	6pm – 7.30pm
Thursday 21 March 2024	Cooma Car Club	6pm – 7.30pm

News

100,000 SNOWY 2.0 TUNNEL SEGMENTS LOCALLY MANUFACTURED

29/02/2024

The Snowy 2.0 Cooma precast manufacturing facility has hit another significant milestone and completed production of 100,000 of the 130,000 concrete segments needed to line 27 kilometres of tunnels for the pumped-hydro megaproject.

More than 230,000m3 (or more than 550,000 tonnes) of concrete has been used to manufacture these seven-tonne precast segments, installed by the three tunnel boring machines (TBMs) used on the Snowy project.

Snowy Hydro CEO Dennis Barnes said it was pleasing for the project to be manufacturing and investing locally, while also providing employment opportunities.

“About 200 people from the 3,000-strong Snowy 2.0 workforce work at the precast factory operated by our project contractor Future Generation Joint Venture,” Dennis said. “The facility supports local employment and also on-the-job training for a number of school-based apprentices from Monaro High.”

The precast facility includes a concrete batching plant and onsite laboratory to check the quality of every segment produced. Many of the raw materials like aggregates are sourced from local quarries at Mt Mary and Nimmitabel.

Careful consideration and design of the concrete mix, which includes waste material, has meant significant reduction in the environmental production footprint while improving the segments’ durability and performance.

Carousels utilising robotics to automate the process of demoulding, cleaning and application of the release agent on the segment moulds have been used in the manufacturing process.

One of the two carousels has now been modified to produce the precast segments for the Snowy 2.0 inclined pressure shaft (IPS). This very steep 1.65km shaft will be excavated by TBM Kirsten and will link the underground power station with the headrace tunnel coming from Tantangara.

The IPS segments involve a world-first force-activated coupling system (FACS) designed to withstand the powerful internal forces of water moving through the 10-metre diameter inclined tunnel.

Installing segments with FACS eliminates the need for a second tunnel lining, thereby improving the quality, safety and the rate of tunnel completion.

The Snowy 2.0 precast factory will produce approximately 9,000 IPS segments, with nine used in each tunnel-lining ring. The first ring prototype has been completed, with mass production expected to start next month.

FAST FACTS

Number produced = 100,000

Concrete used = About 550,000 tonnes or 230,000 cubic metres

Segment weight = 7 tonnes

Installation method = tunnel boring machine

Equivalent rings (nine segments per ring) = 11,111

Tunnel lining length = 22.2 kilometres

News

SNOWY 2.0 PROJECT UPDATE – FEBRUARY 2024

28/02/2024

The new Snowy 2.0 power station will boast the latest in hydro technology, delivered by our expert subcontractor Voith Hydro. In the latest project update, Snowy 2.0 mechanical engineer Mahali Heffner details how quality assurance activities and factory acceptance testing is carried out on each power station component.

Every one of the hundreds of pump-turbine-generator components undergoes rigorous testing before it leaves the Voith factory. This is to ensure they meet high quality standards and will operate reliably when the power station is switched on.

A team of Snowy Hydro and independent assessors recently conducted mechanical and hydraulic dimensional checks on the first Snowy 2.0 runner at the Voith factory in Shanghai, China.

The runner is the heart of a hydro turbine – it’s the rotating element that drives the generator to produce power.

Acceptance testing includes checking the profile of the blades and surface examinations.

Dye penetrant testing is used to identify imperfections on the surface of the 31 tonne, 4.2 metres-wide runner. We spray on a red dye, clean it and apply the developer. If imperfections are present, the dye will make them visual.

Snowy Hydro and contractor Future Generation Joint Venture (FGJV) work with Voith and other subcontractors on a range of quality assurance activities as part of the multi-stage manufacturing process.

At Lobs Hole in the Snowy Mountains, power station components including turbine guard valves, spiral cases and draft tube liners are being progressively delivered to site.

Meanwhile, deep underground, excavation of the machine hall and transformer hall cavern crowns have been completed and we’ve almost finished the final side slashing to widen the structures. Drill and blast works are also continuing in the cross passages and tunnels that are an important part of the power station complex.

At the other end of the project at Tantangara, the intake is really starting to take shape. We are well into stage two of the excavation, now approximately 49 metres below ground level and approximately six metres to go.

We map the cut face to determine what rock support is required and then after the design is confirmed, rock bolts and shotcrete are installed. It’s exciting to see the shape of the transition from intake to tunnel, with the canopy tube rock support in the intake face forming an arch above the tunnel entrance.

Drill and blast of the tunnel excavation is scheduled to start soon and the first milestone target will be to link up the intake with the gate shaft.

News

SNOWY HYDRO STEM FUNDING FOR LOCAL SCHOOLS NOW AVAILABLE

19/02/2024

Following the success of the inaugural Snowy Hydro Local School STEM Fund in 2023, the funding program focused on science, technology, engineering and maths (STEM) excursions will run again in 2024. Snowy Hydro will extend the opportunity for Snowy Mountains and Cessnock schools to apply for grants of up to $10,000.

Recognising that today’s students are tomorrow’s workforce, Snowy Hydro plays a pivotal role in supporting teachers and students by aligning educational programs with industry expertise.

Last year these grants provided thousands of students and 18 Snowy Mountains schools – primary and secondary, both public and private – hands-on interactive STEM experiences.

The program is part of Snowy Hydro’s ongoing commitment to local regions, which already supports various STEM initiatives, including a First Nations Science Camp, the development of a robotics club, 3D printers, an aquaponics project and the enhancement of school resources for the next generation of innovators.

Snowy Hydro CEO Dennis Barnes said: “Snowy is dedicated to fostering education opportunities in and out of the classroom and assisting in developing career pathways.
“The funding is just one example of Snowy Hydro’s ongoing commitment to education and development in support of STEM, particularly among our local communities.”

The funding program complements Snowy’s successful Snowy STEM Academy, the annual Science of the Snowy Scheme Competition, and the unique tailored programs for local schools.

Applications for the 2024 Local School STEM fund open Monday 26 February and must be lodged by Monday 25 March.

Local schools can apply for funding of up to $10,000 to support science, technology, engineering, and maths (STEM) related excursions, student sponsorship, equipment, and camps.

All applications must be completed online via the Snowy Hydro website.

For more information about Snowy Hydro’s Local School STEM fund and to apply visit: https://www.snowyhydro.com.au/local-school-stem-fund-2024/

News

SNOWY 2.0 PROJECT UPDATE – JANUARY 2024

31/01/2024

Deep underground at Lobs Hole in the Snowy Mountains is the heart of Snowy 2.0, the pumped-hydro expansion of the mighty Snowy Scheme. It’s where we’re building a huge power station complex that will house equipment capable of generating 2,200 megawatts of renewable energy.

In this month’s update we’re celebrating a major power station construction milestone – the breakthrough blast of the machine hall cavern crown.

With excavation of the crown – or ceiling – of the cavern taking place from both ends, the final three metres of rock are drilled and charged with explosives according to a precise blast plan.

The tunnels are cleared and the shotfirer arms the electronic blasting system which uses a unique electrical pulse to initiate firing of the explosives.

According to Snowy 2.0 project director Dave Evans, the machine hall achievement signals further progress after the recent transformer hall cavern crown breakthrough and restart of tunnel boring machine Florence in the headrace tunnel at Tantangara.

“These milestones are only possible with the whole team working together as one, whether they are subcontractors like Orica, the company managing underground blasting operations, or the lead contractor Future Generation and Snowy working so closely together.”

To see the latest Snowy 2.0 project’s statistics, view the fact sheet here.

As the underground drill and blast works continue, the manufacturing of major hydropower components for Snowy 2.0 is also well underway.

Snowy Hydro senior quality engineer Victor Teo is based for part of the year in Shanghai, where Voith Hydro – the company producing major power station equipment for Snowy 2.0 – has a large facility.

He also travels to nearby cities including Zhuji and in his quality and compliance role, participates in factory acceptance tests and hold point inspections for components being fabricated by subcontractor Shenke such as the draft tube liners and cones, and the huge stator frames.

The draft tube liners funnel water into and out of the power station turbines and are comprised of six segments. They are 4.6 metres high, 30 metres long and weigh 40 tonnes when assembled.

The six stator frames that house the generator are fabricated in two halves and are welded together for a total weight of more than 400 tonnes.

Snowy Hydro has an integral part to play in establishing high standards of equipment manufacturing, which meet the engineering requirements for our critical Snowy 2.0 project infrastructure.

News

SNOWY HYDRO RELEASES 2023 SUSTAINABILITY REPORT, EXPANDS WIND FARM DEAL

11/01/2024

Snowy Hydro has released its 2023 Sustainability Report, underscoring the company’s commitment to environmental responsibility, community support, and the ongoing pursuit of clean, sustainable energy solutions.

The report outlines Snowy Hydro’s Sustainability Program, which aligns with the company’s integral role in Australia’s renewable energy future. It highlights three prioritised sustainability opportunities for 2023-24:

Understanding and mitigating risks associated with climate change
Emissions reduction and facilitating the decarbonisation of the National Electricity Market (NEM)
Strengthening relationships with Traditional Owners and communities where we operate

Snowy Hydro is a major contributor to the reshaping of the NEM to support the transition to a cleaner, low-carbon economy. The company aims to be a driver and enabler of least-cost NEM decarbonisation.

Snowy Hydro CEO Dennis Barnes said reliability, security of supply, and supporting a sustainable transition would remain the central considerations behind how the company operates, develops and maintains its nationally critical infrastructure.

“As Australia undergoes significant changes in its energy markets, Snowy Hydro remains steadfast in its commitment to delivering clean, sustainable, and affordable energy, contributing to a brighter and more sustainable future for all,” Mr Barnes said.

“We are already reducing our low emissions intensity profile by investing in new generation technology and materially increased renewable capacity.

“Investments in the Snowy 2.0 and Hunter Power Projects, the Renewable Energy Procurement Program, and the development of green hydrogen capability directly support that purpose.”

Mr Barnes said energy purchased through Snowy’s wind and solar offtakes continued to grow. The offtakes will deliver approximately 5,200 GWh annually and exceed Snowy Hydro’s expected long-term hydroelectric generation.

The new wind and solar generation Snowy Hydro is enabling will displace more than 33 million tonnes of CO2 per annum. This equates to a 28% reduction in NEM emissions from 2022 levels and approximately 13% of Australia’s total emissions reduction target for 2030.

Mr Barnes today also announced the signing of a further 100 megawatts of renewable capacity from Squadron Energy’s Uungula Wind Farm over 10 years.

“This adds to the 200 megawatts over 15 years that Snowy signed with the project in 2022.

“We are proud to continue supporting important projects like Uungula Wind Farm which will produce enough renewable electricity to power more than 220,000 homes, and will prevent more than 560,000 tonnes of carbon emissions.”

Snowy Hydro has developed and sold products within a new environmentally-focused product class for its commercial and industrial customers, which includes some of Australia’s largest shopping centres, universities, banks and property managers.

The 2023 Sustainability Report outlines our commitment to supporting local communities through employment, education and environmental responsibility.

Snowy Hydro actively fosters diversity and inclusion, aiming to increase female representation in the workforce (currently at 42.5%), particularly at senior levels.

Snowy Hydro has a long history supporting the local communities in which it operates. This includes partnerships and sponsorships with not-for-profit organisations, community grants programs, contributing to local infrastructure, and economic investment in communities. The Snowy Hydro 2023 Sustainability Report is available to download on the Snowy Hydro website.

FAST FACTS

Snowy Hydro releases 2,300 gigalitres of water each year, which generates an average of approximately 4,250 gigawatt hours (or 4.25 terawatt hours) of renewable energy.

Approximately 94% of Snowy Hydro generation comes from renewable sources.

With a generation capacity of 5,500 MW, Snowy Hydro is the third-largest generator by capacity and one of the largest renewable generators in the National Electricity Market.

Snowy Hydro’s hydro operations have the lowest carbon intensity of Australia’s largest generators.

Snowy Hydro is investing in clean, on-demand electricity generation and storage through the expansion of the Snowy Scheme. Snowy 2.0 will add 2,200 MW of generation capacity and 350,000 MWh of storage capacity.

The Hunter Power project will provide 660 MW of dispatchable, on-demand electricity, enabling variable renewable energy sources (wind/solar) to operate in the NEM.

In FY2024, Snowy Hydro anticipates approximately 2.5 terawatt hours of wind and solar energy will be provided through power purchase agreements.

Snowy Hydro employs 1,956 people in Victoria, New South Wales and South Australia, with a further 2,700+ for Snowy 2.0, and 460 on the Hunter Power project.
42.5% of Snowy Hydro employees are female, 57.4% are male and 0.1% are nonbinary or unspecified.

News

SNOWY 2.0 PROJECT UPDATE – DECEMBER 2023

19/12/2023

In December’s Snowy 2.0 update, Snowy Hydro CEO Dennis Barnes recaps progress and key events throughout the last 12 months.

The review and reset of the pumped-hydro Snowy Scheme expansion project has been a major milestone in 2023.

The reset has put Snowy 2.0 on a robust and sustainable footing, with new contract arrangements in place and a revised cost of $12 billion. The full commercial operation date for the new 2,200 megawatt power station is December 2028.

The focus for the project is prioritising safety and environmental outcomes while achieving construction program targets.

Meanwhile tunnel boring machine (TBM) Florence is underway again at Tantangara after a significant period paused in soft ground conditions after a surface depression formed above the cutterhead. Following an extensive process of ground stabilisation, the project has recently received NSW government approval for a planning modification, enabling the machine to restart tunnelling the headrace adit.

Progress highlights for 2023 include TBM Lady Eileen Hudson being relaunched in July to excavate her second tunnel for the project – she’s now one kilometre into the tailrace tunnel.

There are more than 2,700 people employed on Snowy 2.0 and a total of 20 million hours have been worked to date.

Drill and blast excavation of the power station cavern crowns is well underway from both ends of the machine and transformer halls and we’re seeing large power station components manufactured by Voith Hydro delivered to site.

Senior electrical quality engineer Victor Teo is in Shanghai, China, where Voith is fabricating some of the key electrical components for Snowy 2.0, including stator bars, rotor bars and poles.

The stator bars are bent to a precise shape and highly specialised insulation tape is applied by both machine and technician. These bars are part of the generator which is connected to the transformer to deliver electrical current.

Insulation resistance and short circuit tests are conducted on every bar to ensure compliance with our engineering requirements and Australian Standards.

468 stator bars are needed for each of the six pump-turbine generator units, so over 3,000 of them including spares will be produced.

There is always a member from the Snowy Hydro team in China to conduct quality assurance activities, monitor progress, act as a conduit to close out technical issues and to conduct Factory Acceptance Tests

Snowy 2.0 project manager and environmental engineer Emily Martin is at Tantangara, where TBM Florence is tunnelling in slurry, or closed, mode. This mode utilises the onsite slurry treatment plant and allows the team to pressurise the ground around the TBM to provide additional stability.

The intake excavation works at Tantangara are progressing well, with stage 2 well underway.

This involves another 78,000 cubic metres of drilling and blasting earthworks, along with rockbolt installation and shotcreting.

The intake excavation, which is where water will enter the headrace tunnel, is currently about 35 metres deep and it will be extended to a total depth of 55 metres.

News

SNOWY 2.0 TUNNELLING RESTARTS AT TANTANGARA

13/12/2023

Tunnelling of the Snowy 2.0 headrace adit at Tantangara has restarted following NSW government approval for the project’s planning modification.

Tunnel boring machine (TBM) Florence’s initial advance commenced last week. Tunnelling is being conducted in closed (slurry) mode and progress is slow and steady. The project has engaged specialist experienced personnel to manage this process.

Snowy Hydro CEO Dennis Barnes welcomed the milestone, which comes after a delay caused by soft ground conditions and the emergence of a sinkhole above TBM Florence.

“We were very pleased to receive the green light for tunnelling at Tantangara to recommence and to allow remediation of the subsidence area,” Mr Barnes said.

“The conditions of approval were developed through the extensive review, public consultation and determination process, and will be strictly adhered to as we get back underway with excavation of the tunnel.

“The Snowy 2.0 delivery team is acutely aware of its responsibilities working in the sensitive environment of Kosciuszko National Park. We are focused on achieving excellent environmental outcomes throughout construction of this pumped-hydro expansion of the Snowy Scheme and critical infrastructure for Australia’s transition to renewable energy.”

The modification approval extends the project’s western boundary above the TBM at Tantangara. This will enable close monitoring of surface conditions as TBM Florence advances. Surface monitoring will continue until there is at least 100 metres of overburden (distance from the TBM to the surface).

In preparation for the restart of tunnelling at Tantangara, extensive geotechnical investigations were carried out on the headrace adit alignment, along with ground improvement works.

Elsewhere on the project:

At Talbingo, the Snowy 2.0 project continues to make good progress with excavation of the tailrace tunnel. TBM Lady Eileen Hudson has excavated approximately 1,000 metres since its relaunch in July.
Manufacturing of Snowy 2.0’s six pumped-hydro units that will generate up to 2,200 megawatts of power for Australia’s electricity grid is in full swing.
Five of the six 153 tonne spiral cases have been manufactured, along with four draft tube liners and cones, three main inlet valves and other major power station components, including the first turbine runner. One of the 13 metre long, 7.5 metre wide spiral cases was recently delivered to Lobs Hole, making a 442-km night time journey from Port Kembla to the Snowy Mountains.

Snowy 2.0 spiral cases and other components at the Voith Hydro Shanghai factory.

News

OVER 25 GROUPS BENEFIT FROM SNOWY HYDRO COMMUNITY GRANTS

11/12/2023

Snowy Hydro continues its strong support for local not-for-profit organisations and community groups, with almost $150,000 distributed to 29 applicants in the second round of the 2023 community grants program.

In this round, more than 70 grant applications were received, which offered grants of up to $10,000 to support projects, local festivals, events and initiatives that benefit the local communities of the Snowy Mountains and surrounds.

The funding was distributed across the three Local Government Areas (LGAs) where our hydro regions operate. The grants support activities such as an Indigenous mentoring program; respite housing fitout, community race days, shows and large regional festivals; the creation of educational signage and murals at local museums and historical societies; along with care packages for those suffering from cancer.

The successful applications are all underpinned by Snowy Hydro’s four community commitment pillars – education and development, health and wellbeing, regional capacity building and environment.

Each year the Snowy Hydro Community Grants Program has two rounds of funding. The first round of applications for 2024 will open in February. Please ensure your application aligns with Snowy Hydro’s Community Commitment Pillars and grant selection criteria. Each round numerous applications are received and not all will be successful.

In order to be eligible for a grant, each application undergoes a diligent assessment process to maintain consistency and transparency across the program. Applicant groups must be located within the Snowy Monaro, Snowy Valleys or Towong LGAs, be a non-profit group or organisation holding an Australian Business Number (ABN) and align with Snowy Hydro’s Values.

Applications are to be submitted online via the Snowy Hydro website and the proposed project or event must respond to a community need, provide tangible benefits to the community, strengthen the community by providing opportunities that align with Snowy Hydro’s community commitment pillars, demonstrate strong governance, foster strong and sustainable partnerships within the community and return value for investment.

For more information about Snowy Hydro’s Community Grants Program visit: https://www.snowyhydro.com.au/communitygrantsprogram/

News

SNOWY 2.0 PROJECT UPDATE – NOVEMBER 2023

05/12/2023

Snowy 2.0 is entering an exciting phase as we build the largest single project that will help ensure Australia’s secure and reliable transition to renewable energy.

In this month’s project update Hamish Pryor, construction director for Snowy 2.0, provides an overview of the power station equipment manufacturing that is in full swing.

The bespoke Snowy 2.0 power station components are being fabricated with precision and skill at one of Voith Hydro’s global production facilities in Shanghai, China.

Voith Hydro is partnering with Snowy 2.0 to make the six pumped hydro units that will generate up to 2,200 megawatts of power for Australia’s electricity grid.

Voith has more than 150 years of experience in hydropower systems and its highly skilled team is developing efficient and reliable equipment that will support the 150-year design life of Snowy 2.0.

At the Shanghai factory, every item that is manufactured for the project undergoes comprehensive quality checks and testing before being shipped to Australia.

Voith’s quality, research and development team in Germany works directly with its Shanghai engineering experts on design, manufacturing processes and quality control. The team also collaborates closely with the Snowy 2.0 project team in Australia.

Among the large components being manufactured are the 13 metre-wide spiral cases and the main inlet valves – each weighing 140 tonnes and 2.2 metres in diameter – and the 31-tonne runners.

The runner is the heart of a hydro power turbine – it’s the rotating element that drives the generator to produce electrical energy. Exceptional machining and highly specialised welding skills are used to fabricate the components.

In Voith’s state-of-the-art electrical workshop more than 2,700 stator bars – which will be connected to the transformers to deliver power produced in the generators – are being manufactured.

Snowy Hydro has team members based in Shanghai to conduct quality assurance activities and monitor progress, while specialist mechanical and electrical engineers attend factory acceptance testing.

Recently, the final acceptance test for the first unit runner was completed and celebrated with a photo in the workshop.

In the Snowy Mountains in NSW, the Snowy 2.0 delivery team is also creating water intakes at the Talbingo and Tantangara reservoirs. A 28-metre diameter, 250 metre-deep surge shaft is being built at Marica and will become one of the largest operating shafts in the world.

Tunnel boring machines excavating the Snowy 2.0 tunnels are lining them with locally-made concrete segments – we’ve manufactured almost 90,000 of them at the Cooma precast factory so far. And the underground power station cavern complex is underway, with drill and blast excavation.

News

SCIENCE OF THE SNOWY SCHEME COMPETITION WINNERS

04/12/2023

Snowy Hydro is excited to announce the winners of this year’s annual Science of the Snowy Scheme Competition, from a total of 128 entries!

This year’s competition was created to increase students’ engagement with Snowy Hydro STEM experts during National Science Week 2023.

Stage 2 and 3 (year 3-6) students in the Snowy Mountains and surrounding areas were given the opportunity to take part in the competition, which included a colouring-in and a written response task. The students were asked to answer the question: Who is someone that inspires you and why?

The children were inspired and excited to use their creativity while also displaying insightfulness in their written pieces. Some students wrote about their parents or friends, others discussed their teachers, favourite singers, athletes and celebrities.

There were two judging categories to review entries across stage 2 and stage 3. This included an esteemed and diverse panel of four judges, as well as ‘Community Choice’ voting.

The ‘Judges’ Choice’ panel included the Hon Kristy McBain MP, Member for Eden-Monaro, local artist Rowena Evans, David Eisenhauer from local radio Sounds of the Mountains and Snowy Hydro mechanical engineer Sara Roder.

The competition entries were open to the public to vote for the ‘Community Choice’, where all student work was available for viewing and voting on the Snowy Hydro website.

All judging has now concluded, with a winner and runner-up selected for stage 2 and 3, under each judging category. The winners will receive a VIP catered experience at the Snowy Hydro Discovery Centre and a STEM prize package valued at $150 and the runners-up will each collect a STEM prize pack, also valued at $150 each.

Snowy Hydro are proud to announce the winners of the 2023 Science of the Snowy Scheme Competition:

Judges’ Choice – Winners

Stage 2 – Ellie Reid | St Patrick’s Parish School Cooma

Stage 3 – Clara Stefanetto | St Patrick’s Parish School Cooma

Judges’ Choice – Runners-up

Stage 2 – Emilio Brazulaitis | St Patrick’s Parish School Cooma

Stage 3 – Cormac Girling | St Patrick’s Parish School Cooma

Community Choice – Winners

Stage 2 – Bella Chorvat | Cooma Public School

Stage 3 – Lola Tonissen | Delegate Public School

Community Choice – Runners-up

Stage 2 – Hamish Walker | Delegate Public School

Stage 3 – Harlan Ingram | Delegate Public School

The winning entries will be displayed on the Snowy Hydro website and showcased at the Snowy Hydro Discovery Centre in Cooma.
Stay tuned for the 2024 Science of the Snowy Scheme Competition which will run in Term 2. For more activities, visit the Snowy Hydro Next Generation Education Academy on the Snowy Hydro website. https://www.snowyhydro.com.au/education/nextgen/

News

SNOWY 2.0 PROJECT UPDATE – OCTOBER 2023

08/11/2023

In this month’s project update, we check on tunnel excavation at Talbingo, progress at the upstream surge shaft at Marica, and we hear about the specialised drilling underway to prepare for services such as power and communications between Lobs Hole, Marica and Tantangara.

Will Binsted, Snowy 2.0 Lobs Hole Construction Manager, has been working on the project for four years and is responsible for coordinating both surface and underground works. Will, who lives locally in Tumut, liaises with technical specialists as well as designers and project engineers across the busy worksite.

To see the latest Snowy 2.0 project’s statistics, view the fact sheet here.

A complex task is underway at Lobs Hole to drill boreholes for the pipes that will house power, water and fibre optic cable for communications across three of the Snowy 2.0 sites.

Horizontal directional drilling (HDD) is being used to drill 2.2km-long boreholes from Lobs Hole to Marica. The holes are initially 300 millimetres in diameter and have an elevation difference of 650 metres.

Two drilling operations are underway from top and bottom and will join up to create a continuous borehole before being enlarged to 660 millimetres in diameter.

This type of drilling is used for service lines that cross under waterways or underground structures and requires a high level of skill to maintain directional control while operating a drill string up to 1.8km long. Snowy 2.0 has contracted HDD experts Michels for the project.

The boreholes eliminate the need to construct approximately five kilometres of roads and excavate up to 60 metre cuts in the steep terrain, helping the Snowy 2.0 project team minimise environmental impacts.

HDD techniques will also be used to take services under the Snowy Mountains Highway and waterways across the plateau through to the Tantangara worksite.

At Marica, the 28 metre diameter headrace surge shaft is now one-fifth of the way to its final depth of 263 metres and we’re starting drill and blast activities. There are two hoisting buckets called kibbles with a capacity of 25 tonnes for loading out excavated rock.

Excavators break up the rock with hydraulic hammers before it’s loaded into the kibbles and craned out of the shaft. The kibbles are lowered into hoppers and the rock drops into an articulated dump truck before being removed to a temporary stockpile area.

With the shaft now more than 50 metres deep, an integrated work platform and personnel hoist is being installed to provide worker access. We’ve installed ventilation ducts to manage air quality.

At Talbingo, tunnelling of the tailrace adit is complete. TBM Lady Eileen Hudson is now excavating the tailrace tunnel alignment and heading towards the power station complex. This marks the start of the first power waterway on the Snowy 2.0 project.

Excavation is ahead of schedule, with more than 26 metres recently excavated in a single day. The tailrace tunnel is six kilometres in length, with TBM excavation continuing through to mid-2025.

Snowy 2.0 is being engineered to deliver clean and reliable energy storage and generation for the next 150 years. The target date for commercial operation of all units is December 2028, with first power expected in the second half of 2027.