News

SNOWY 2.0 – PROJECT UPDATE

03/05/2023

Snowy Hydro’s management team is working towards resetting the delivery timeline and budget for the Snowy 2.0 project with its principal contractor, Future Generation Joint Venture (FGJV), as part of an ongoing project review.

The reset will ensure this critically important clean energy infrastructure project is placed on a robust and sustainable footing for FGJV to progress the schedule in a realistic and productive manner.

While significant progress has been achieved by FGJV on Snowy 2.0, there are delays to Snowy 2.0’s contracted schedule and likely cost impacts beyond the contingency allowed, which remain under review by Snowy Hydro.

There are four broad categories of factors contributing to schedule delays and likely cost increases:

the mobilisation and resourcing implications of the COVID-19 pandemic;
the effect of global supply chain disruption and inflation impacting the cost and availability of a skilled workforce, materials, and shipping;
a number of design elements requiring more time to complete due to their technically complex nature, with the final design now being more expensive to construct; and
the impact of variable site and geological conditions, with the most impactful being the soft ground encountered that is delaying tunnel boring machine (TBM) Florence’s progress at Tantangara.

Snowy Hydro anticipates that the timeline for full commercial operation is delayed by a further 12-24 months from the current publicly released dates:

Milestone	Earliest	Latest
First Power	June 2027 – December 2027	June 2028 – December 2028
Commercial operation of all units	December 2028	December 2029

Snowy Hydro expects more detail on the budget implications of the project reset around July 2023, and this will be clearly communicated with key project stakeholders.

Snowy Hydro CEO Dennis Barnes said:

“Since joining Snowy Hydro earlier this year I have focused on ensuring our major projects are placed on a realistic and sustainable footing, while maintaining construction progress.

“This project is critically important to the transition of Australia’s electricity grid and it’s crucial that we are working to a safe, efficient and realistically achievable timeframe to enable orderly planning for all our stakeholders. I am committed to being transparent about our progress and how we are proactively managing the inevitable issues and challenges that arise in a complex project like this.

“While many other major infrastructure projects have been impacted by the same challenges, Snowy 2.0 continues to make positive progress.

“Snowy 2.0 is providing significant employment and economic benefits both regionally and domestically. There are currently over 2,400 people employed on the project and thousands more jobs generated indirectly through supply chains and support services.

“TBM Kirsten has tunnelled 2.9 km to reach the underground power station cavern complex and we now have access to this site from both ends. We shortly expect to commence the 6km tailrace tunnel that will feed into Talbingo Reservoir and the excavation of intakes at Talbingo and Tantangara are proceeding very well.”

News

SNOWY HYDRO YEAR 9 CAREERS OPEN DAY

27/03/2023

At Snowy Hydro we understand the importance of developing students for the careers of the future, so we are excited to be hosting our inaugural Year 9 Careers Open Day on Thursday 30 March 2023.

The initiative, which is aimed at schools in the Snowy Monaro, Snowy Valleys and Towong local government areas, continues our strong focus on educational programs that spark an interest in science, technology engineering and maths (STEM) for local young people.

Snowy Hydro CEO Dennis Barnes said the Year 9 Careers Open Day would allow students to go behind the scenes at the Snowy head office in Cooma to explore the diversity of STEM careers.

“More than 100 students will hear from some of our engineers, climate scientists and technology experts and enjoy interesting, hands-on activities,” Dennis said.

“They’ll learn about Snowy Hydro’s operations and the amazing Snowy Scheme, participate in quality learning experiences, discuss STEM-related career pathways and learn how different engineering roles use maths on a daily basis.

“By showcasing what we do here at Snowy and what opportunities there are for local kids with an interest in STEM, we hope to inspire a future generation of engineers, scientists and technical specialists.

“The Year 9 Careers Open Day will also help students with their subject selections for year 10 and beyond.”

Students will begin their day at Snowy Hydro with a welcome from senior leaders. They’ll experience the fantastic Discovery Centre immersive theatre with a Snowy Scheme virtual flyover, visit the generation operations control room and learn about work experience, traineeships and apprenticeships and tertiary pathways at Snowy.

And that’s just the start!

Snowy Hydro is proud to be launching the Year 9 Careers Open Day in 2023 and establishing it as a fixture on the local schools’ calendar for years to come.

News

ADAMINABY TRUCK PARKING PROJECT

21/12/2022

Snowy Hydro is proud to be supporting a Snowy Monaro Regional Council project providing new truck parking bays in Adaminaby.

Six 3-metre wide and 30-metre long sealed parking bays will be built on the Snowy Mountains Highway in Adaminaby, allowing heavy vehicles to safely stop for logbook, food and drink breaks.

Acting Snowy Hydro CEO Roger Whitby said a $188,000 contribution from Snowy Hydro would assist council in delivering an important improvement for the town.

“We are extremely pleased to be partnering with Snowy Monaro Regional Council on the truck parking bays project,” Mr Whitby said.

“There is a lack of heavy vehicle parking areas between Cooma and Tumut, along with increased numbers of heavy vehicles passing through Adaminaby with the Snowy 2.0 project. So this is an opportunity to help with a really good legacy initiative that will benefit the town’s economy,” Mr Whitby said.

“Truck drivers taking a break in Adaminaby on their trips through the Snowy Mountains will have fit-for-purpose, sealed and lit bays to park their vehicles in.

“This improves safety for them and other road users, and means heavy vehicles will no longer need to park in residential areas of the town.”

The truck parking project, which is being conducted in consultation with Transport for NSW, will get underway early in 2023.

A temporary repair has been carried out to the area in front of the Big Trout statue in Adaminaby for long vehicle parking in the short-term.

In addition to the truck parking initiative, a separate council project will provide permanent parking facilities in Adaminaby that accommodate long vehicle parking for cars towing boats and caravans, along with recreational vehicles.

The two projects are scheduled for completion by April 2024, weather conditions permitting.

The Adaminaby parking projects are proudly funded by the Bushfire Local Economic Recovery (BLER) Fund, which is part of the $4.5 billion bushfire support program co-funded by the Australian and NSW governments for bushfire recovery, response and preparedness in NSW.

News

LAKE JINDABYNE RELEASES – 16 December 2022

16/12/2022

High inflows to the Snowy Scheme, including the Jindabyne catchment, have been experienced for more than 12 months and are continuing due to the late snow falls and wetter than usual weather conditions.

Lake levels are approaching 100% and continue to rise, so Snowy Hydro has consulted with NSW Department of Planning and Environment (DPE Water) to make pre-releases into the Snowy River below Jindabyne Dam from 1am Saturday 17 December 2022.

Pre-releases will be greater than the environmental releases notified on Snowy Hydro’s website and may change at short notice in response to the weather conditions. Releases are expected to remain below 2,000 megalitres per day, but could increase in response to further weather events.

If Lake Jindabyne reaches 100%, it will trigger the operation of the spillway gates. Dam safety is paramount, and the spillway gates will automatically release water whenever the storage reaches or exceeds 100%.

For the community the most important message is to stay safe and well informed. The public can stay updated about flood alerts here:

For more information about releases into the Snowy River visit

https://www.snowyhydro.com.au/generation/live-data/lake-levels/ and

https://dpie.nsw.gov.au/water/home

Snowy Hydro will continue to keep the community informed about management of water in Lake Jindabyne through its website and social media channels.

News

SNOWY HYDRO STATEMENT ON CLOUGH – UPDATED 16 December 2022

16/12/2022

Snowy Hydro welcomes the announcement by Webuild that it has reached an agreement with Clough Limited administrators to acquire Clough’s share of the Snowy 2.0 project contract and its related workforce.

Our priority remains ensuring the wellbeing and continuity of Clough’s workers on the project and the smooth progress of Snowy 2.0 construction.

We will continue to work closely with Webuild and the administrators throughout the acquisition process.

News

SNOWY 2.0 HEADRACE TUNNEL UPDATE

16/12/2022

Snowy 2.0 teams are monitoring a surface depression that has emerged above the headrace tunnel at Tantangara.

The integrity of the tunnel has not been compromised, and tunnelling is continuing while work to remediate the surface depression above tunnel boring machine (TBM) Florence is carried out. There is a safety exclusion zone around the surface depression.

Ensuring the safety of the Snowy 2.0 workforce and members of the public is the priority for Snowy Hydro and principal contractor Future Generation Joint Venture.

The Snowy 2.0 teams are conducting geophysical investigations of the area and continuing grouting operations and probing from the TBM.

As previously indicated, the ground conditions encountered by the TBMs on Snowy 2.0 have been highly variable, ranging from very loose, sandy ground to extremely hard rock in fluctuating groundwater conditions.

TBM Florence is transitioning from soft material into harder rock conditions.

News

STUDENTS FLOCK TO COUNTRY UNIVERSITIES CENTRES

30/11/2022

New data from the 2021 census has revealed that Country Universities Centres (CUCs) are leading the way in university student growth across regional NSW.

Over the past five years, university student numbers in NSW towns with CUCs grew by 24.7% compared with an average 5.4% for all non-metropolitan areas.

Snowy Hydro co-founded the very first CUC in Cooma in 2013 and remains an integral supporter of the higher education centre by jointly funding it together with Snowy Monaro Regional Council.

The CUC initiative enables regional and rural university students to study close to home in a campus-like environment with learning facilities, technology including access to computers, wifi, printers, video conferencing and support staff.

Snowy Hydro Acting CEO Roger Whitby said the long-running Cooma CUC partnership continues to be highly successful.

“CUCs are helping to stop the brain drain – they allow regional students to stay in their communities, have access to tertiary education in a supportive environment and ultimately provide local employers, including Snowy Hydro, with qualified workers,” Mr Whitby said.

“Typically there is a high drop-out rate with people studying online courses because they can feel isolated, so the CUC offers real benefits.”

Cooma has seen a university student increase of 64% over the last two census periods (2011-2021), compared with an average 17.5% for non-metro NSW.

Following the success of the Cooma CUC pilot, a further five centres opened in Broken Hill, Goulburn, Grafton, Griffith/Leeton and Narrabri/Moree in 2018-19.

The network of centres has since grown to 20 regional communities across NSW, Queensland and Victoria with the additional support of the NSW Government and the Australian Government’s Department of Education, Skills and Employment through the Regional University Centres program.

Find out more about Snowy Hydro’s partnership with Country Universities Centre: https://www.snowyhydro.com.au/ourpartners/country-universities-centre/

Students studying at university by locality

Australian Bureau of Statistics 2021 Census data

CUC locations and year of opening	Increase 2011-2021	Increase 2016-2021
Cooma (2013)	* 64.1%
Broken Hill (2018)		22.8%
Goulburn (2018)		18.4%
Grafton (2019)		32.3%
Griffith and Leeton (2019)		33.8%
Narrabri and Moree (2019)		16.0%
CUC centre average increase		24.7%
NSW university students – non-metro	17.5%	5.4%

*Only the Cooma CUC was operating during the 2016 Census.

News

IN THE SWIM AT TALBINGO RESERVOIR

16/11/2022

Snowy Hydro’s Talbingo Reservoir and its new swimming, picnic and boating facilities will be a focal point for the local community and visitors over summer.

Snowy’s acting CEO Roger Whitby, the Member for Wagga Wagga Dr Joe McGirr and Snowy Valleys Council Mayor Ian Chaffey recently had the opportunity to view the upgraded recreation area as part of the Tumut 3 Power Station 50th birthday celebrations.

The facilities include a safe swimming beach with improved pedestrian access and car parking, a large picnic shelter, grassed areas, a widened two-lane boat ramp and new mooring pontoon.

Snowy Hydro contributed $560,000 to the recreation area project, with the NSW Government investing $850,000. Snowy Valleys Council managed construction of the project, which was completed in February this year.

Mr Whitby said Snowy Hydro always proudly supports the local communities it lives and operates in.

“We have been extremely pleased to contribute to this recreation improvement project in Talbingo, a town constructed as part of the mighty Snowy Scheme and just down the road from Tumut 3 Power Station.

“We think the community and the many visitors who come to the area for fishing, water skiing and swimming will really enjoy the upgraded amenities.

“The new facilities allow boats to continue using Talbingo Reservoir while swimmers have a safe and friendly spot to keep cool.”

News

SNOWY HYDRO JOINS WITH COMMUNITY TO CELEBRATE 50th BIRTHDAY FOR TUMUT 3 POWER STATION

05/11/2022

Large crowds have turned out for a community open day and 50th birthday celebrations for the largest of the mighty Snowy Scheme’s power stations, Tumut 3, at Talbingo.

With the iconic white penstocks as backdrop, local community members and visitors today joined Snowy Hydro in acknowledging the remarkable role the Tumut 3 Power Station has played providing critical energy supply and water services to eastern Australia since 1972.

Snowy Hydro acting CEO Roger Whitby said Tumut 3 was the first and biggest pumped-hydro facility in Australia.

“The Snowy Scheme’s fast start, reliable clean energy generation keeps the lights on – literally – for millions of people and our pumped-hydro capability here at T3 is integral to this,” Mr Whitby said. “We generate at peak periods or when there is a shortfall of other energy sources, and pump when demand and wholesale energy prices are low, reusing and recycling the water.

“Tumut 3 Power Station has been operating reliably and safely for 50 years, with decades more service to come.

“The longevity of this asset is testament to its quality design, engineering, construction and maintenance. I would like to thank and express my appreciation to those who have played a part in Tumut 3’s history, especially those former workers who have attended the event today.”

Mr Whitby, along with the Member for Wagga Wagga Dr Joe McGirr and Snowy Valleys Council Mayor Ian Chaffey, led the official proceedings at the community open day.

Visitors to the event enjoyed a range of activities including power station tours, bus tours of the reservoir and penstocks, live music, food vendors, and activities for the kids from Snowy Hydro’s Next Generation Education Hub and the National Parks and Wildlife Service.

Tumut 3 Power Station facts

T3 is the largest power station in the Snowy Scheme and the first pumped-hydro facility in Australia.
The station has a total generating capacity of 1,800MW. That is enough electricity to power more than half a million homes.
Three of the six units are capable of both generating and pumping, meaning that we can recycle water between Jounama Pondage and Talbingo Reservoir.
Each of the penstocks are 488m long and 5.6m in diameter.
They are full all of the time, holding over 12,000 tonnes of water.
If all three pumps are running, water from Jounama Pondage is pumped at a rate of 297 cubic metres per second.
Talbingo Dam was completed in 1970 – the dam height is 161 metres.
Talbingo Reservoir’s gross capacity is 921,400,000m3, which is almost twice the size of Sydney Harbour.

News

JINDABYNE DAM SPILL

28/10/2022

Following recent rainfall events and seasonal snowmelt inflows, Jindabyne Dam reached full supply level on Friday 28 October 2022 and commenced spilling into the Snowy River.

Dam safety is paramount at this time and spillway gates will operate automatically to regulate the inflows and pass them through to the Snowy River below the dam until the lake level falls below 100%.

Snowy Hydro expects high lake levels to remain and to continue releasing volumes in excess of the designated environmental release targets well into November.

Pre-releases of up to 5,000 megalitres per day from Jindabyne Dam into the Snowy River have been conducted since 4 October. This has helped in avoiding spills until now and will continue to reduce the peak of any subsequent flood events that may occur.

Snowy Hydro has been managing significant inflows throughout 2022. In the last three months there has been an increase in Eucumbene’s storage of 850 gigalitres, which is over 1.5 times the capacity of Sydney Harbour. Inflows to Jindabyne cannot be moved into Eucumbene and with significant flooding in all directions, excess inflows can only be passed into the Snowy River at present.

For the community the most important message is to stay safe and well informed. The public can stay updated about flood alerts here:

For more information about releases into the Snowy River visit
https://www.snowyhydro.com.au/generation/live-data/lake-levels/ and
https://dpie.nsw.gov.au/water/home

Snowy Hydro will continue to keep the community informed about management of water in Lake Jindabyne through its website and social media channels.

News

MILESTONE FIRST TUNNEL COMPLETED FOR SNOWY 2.0

11/10/2022

Snowy Hydro is celebrating the completion of excavation for its first tunnel for Snowy 2.0, with the Lady Eileen Hudson tunnel boring machine (TBM) reaching the location of the new underground power station cavern.

The 11-metre diameter TBM has excavated 2.85km to create the main access tunnel at Lobs Hole in the Snowy Mountains, where a workforce of more than 2,200 people are building Snowy 2.0 – the 2,000 megawatt pumped hydro expansion of the mighty Snowy Scheme.

Snowy Hydro acting CEO Roger Whitby said the tunnelling achievement was a significant milestone, with Snowy 2.0 set to underpin the nation’s transition to renewables.

“Snowy 2.0 will not only provide on-demand, quick-start generating capacity for the National Electricity Market (NEM), but a massive 350,000 gigawatt hours of energy storage,” Mr Whitby said.

“This is our first new major tunnel excavation in decades, since construction of the original Scheme, and it gives us access to the site where we will create the enormous cavern 800m underground that will house our power station.

“The TBM Lady Eileen Hudson and our teams from Snowy Hydro and contractor Future Generation Joint Venture have done a great job to complete this critical tunnelling task.

“However, there’s no slowing down. Work across the project continues to move ahead rapidly and this tunnel boring machine is now being dismantled so it can be moved to the Talbingo adit where it will be reassembled with some new components for excavation of the 6km tailrace tunnel.”

While dismantling of the TBM conveyor belt gets underway in the main access tunnel, drill and blast activities are ongoing to excavate cross passages and tunnels to gain access to the power station complex, which will include a 251m-long, 52m-high machine hall cavern and 223m-long, 46m-high transformer hall cavern.

The new work fronts associated with the powerhouse will create further employment opportunities on this clean energy mega-project.

The Snowy 2.0 project will link Tantangara Reservoir (top storage) with Talbingo Reservoir (bottom storage) through 27km of tunnels and a power station with pumping capabilities.

This will enable water to be released for energy generation at times of peak demand and then pumped back to the top storage when there is excess renewable energy in the system, ready to generate again.

Main access tunnel fast facts:

10 metres in diameter
Lined with 1,422 concrete rings installed by the TBM
Rings comprise 12,798 individual segments manufactured locally in Cooma
Has four cross-passages linking it to the adjacent emergency, cable and ventilation tunnel
Also has four cross tunnels and a turning bay to facilitate construction access around the power station complex
Provides pedestrian and vehicle access into the power station

News

TBM FLORENCE ON THE MOVE

05/10/2022

Tunnel boring machine (TBM) Florence continues excavating the Snowy 2.0 headrace tunnel at Tantangara following successful reinforcement works.

As anticipated, the ground conditions encountered by the TBMs on Snowy 2.0 have been highly variable, ranging from soft, sandy ground to extremely hard rock.

The Snowy 2.0 teams have been working collaboratively to safely navigate the softer ground conditions experienced at Tantangara, including high groundwater inflows.

As part of the tunnelling process we probed in advance of the TBM, identifying the soft ground ahead, and then consulted with our expert design consultants to plan for stabilisation works. TBM Florence has been specifically designed to encounter these variable ground conditions.

Consolidation grouting around the perimeter of the headrace tunnel, and internally, the installation of steel ribs to reinforce the concrete segmental lining in the soft zone, have been carried out to ensure stability and manage groundwater inflows. Additional instrumentation to monitor ground performance has also been installed.

Successful execution of the reinforcement works by Snowy 2.0 principal contractor Future Generation Joint Venture (FGJV) is enabling the TBM to carefully thrust off the segments and move forward.

Snowy Hydro expects variable and soft ground conditions to occur in sections of the very long 17-kilometre headrace tunnel. Further ground improvement works – a typical tunnelling process – will be carried out where required so the TBM can safely advance.

Snowy Hydro and its Future Generation Joint Venture partners are working towards the successful delivery of Snowy 2.0.

Click here for images of TBM Florence and the reinforcement works.