News

2024 WINTER SNOW DEPTH MEASURING ACTIVITIES

02/07/2024

Snowy Hydro’s snow depth measurements in the NSW Snowy Mountains have commenced for 2024, with some changes and improvements to data collection and public reporting.

The first reading for 2024 was conducted on 14 June. Manual readings at Spencers Creek  will occur weekly to fortnightly this winter, with a greater focus on the second half of the season when snow depths are peaking and as the spring snowmelt increases. Manual readings at Deep Creek and Three Mile Dam will be carried out on an as-needs basis and supplemented by automated instrumentation.

Following a rigorous process review and impact analysis, Snowy Hydro is investing in new instrumentation across the Snowy Scheme and can now provide more frequent snow depth readings at a site close to the Spencers Creek snow course. This near real-time snow depth information is available HERE, noting that as an experimental site, there may be gaps in the provision of data at times.

The new equipment can measure snow depths accurately up to 3 metres. We expect information from the site to improve the resolution of our overall data collection.

Snowy Hydro is committed to remaining flexible and exploring new technology to maximise the value of Spencers Creek, which is regarded as Australia’s premier long-term snow record. 

We recognise its significance to scientists and the wider community as an index of environmental variability and change. Indeed, having an understanding of the alpine and subalpine environment is essential to our business operations. 

Safety and operational considerations will remain our highest priority when conducting snow depth measurements. By being more flexible with how we collect data in remote locations, including the regularity and frequency of obtaining snow depth readings, we reduce the need to send staff to remote locations in poor weather conditions. This agility allows us to schedule this work to occur when conditions are safest while also maintaining quality records.

News

CLOUD SEEDING UPDATE

07/06/2024

Since 2004, Snowy Hydro has been conducting a successful cloud seeding program to enhance snowfall over the Snowy Mountains during suitable conditions in the cold months, increasing the amount of water available when the snow melts in spring to produce clean, renewable energy. Our cloud seeding program is backed by extensive scientific research, independent review and stringent environmental regulation.

This winter, Snowy Hydro is pausing cloud seeding operations as we undertake a program review.

Our cloud seeding infrastructure is approaching end of life and requires upgrading or replacement. Meanwhile, the cost of resourcing the program and meeting regulatory obligations is increasing. 

During the break in operations in 2024 we will undertake a comprehensive assessment of the program, its ongoing return on investment and the resourcing requirements for cloud seeding to continue.

We will provide another update prior to winter 2025.

Cloud Seeding at Snowy Hydro:

• Snowy Hydro’s cloud seeding program began as a scientific trial in 2004 and following the success of the trial, moved to an operational program in 2013. Our cloud seeding operations are authorised by the Snowy Mountains Cloud Seeding Act 2004 (NSW) and are carried out in accordance with an Environmental Management Plan approved by the NSW Environment Protection Authority (EPA).

• Snowy Hydro is authorised to conduct cloud seeding to enhance snowfall, not rain, over a  2,110 km2 target area in the Snowy Mountains. There is no evidence of an effect from cloud seeding on precipitation outside of the target area.

• Cloud seeding in the Snowy Mountains only occurs during the cold months when snow is likely to fall to elevations of at least 1,400 metres. 

• Only weather systems that meet specific criteria are targeted for cloud seeding – typically cold fronts that bring blizzard-like conditions to the alpine areas.

FOR MORE INFORMATION VISIT THE CLOUD SEEDING PAGE OF OUR WEBSITE

News

SNOWY SCHEME STORAGES AND SPILLS

02/11/2022

The Snowy Scheme is currently operating around the clock at optimum levels to capture very large inflows and help minimise flood risks and impacts, while still performing its  critical role of supporting energy supply to the grid.

Snowy Hydro has been managing significant inflows throughout 2022 and the assets of the Snowy Scheme are performing exceptionally well. Following repeated rainfall events in October and seasonal snowmelt, most of our reservoirs are full, and as more rain falls, we need to release or “spill” the excess water. 

In the past week, spills have occured at locations including Guthega, Island Bend, Tooma and Jindabyne dams, where inflows are greater than the available airspace and diversion capacity. Dam safety is paramount and spillways will automatically release water when a storage reaches 100%. Controlled releases have been made from most other storages, including Tumut Pond, Khancoban and Jounama to pass the high inflows.

Total Snowy Scheme storage has increased by over 1,100 gigalitres (GL)  in the three months from August to October – this equates to more than twice the volume of Sydney Harbour. Lake Eucumbene, the Scheme’s central storage, has risen by 20%, with flows from all parts of the Scheme being diverted into this long-term storage where possible.

Inflows to Lake Jindabyne cannot be moved into Eucumbene or into the already saturated Snowy-Murray development, so excess inflows can only be released into the Snowy River.

More than 300GL has also been moved away from the Tumut River into Lake Eucumbene over the last three months. Inflows in the Tumut River below Tumut Ponds Dam must also be passed through the system. 

Snowy Hydro continues to work closely with WaterNSW and utilise Scheme storage where possible to mitigate flows while flood risks are highest.

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://www.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

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

SNOWY HYDRO SNOW DEPTH MEASUREMENT 2022

17/06/2022

Snowy Hydro collects snow depth readings at a number of designated snow courses across the Snowy Mountains of NSW as required for operational purposes. Spencer’s Creek snow course is the most recognisable of these locations as it is often cited by nearby ski resorts as a proxy for the ‘natural snow depth’. Deep Creek and Three Mile Dam are also recorded and reported on Snowy Hydro’s website

The information gathered by Snowy Hydro is primarily used as an input into seasonal forecasts for inflow to the Snowy Scheme. With advances in technology and different methodologies employed, the need for manually measured snow depth readings at designated snow courses is in decline, particularly in the early part of the snow season where precipitation is typically adding to the snow pack more so than contributing to inflows.

In parallel, safety is Snowy Hydro’s number one priority. By reducing the frequency of snow depth readings, we reduce the need to send staff to remote locations in poor winter weather conditions. This means we can schedule this work to occur when conditions are safest to do so.

Snowy Hydro commenced monitoring in mid-June 2022. We will take readings on an as-needed basis. This is likely to result in irregular updates, and less frequently than has been observed in the past. Snowy Hydro will continue to update its website after each snow depth reading is collected.

News

One of the wettest winters on record

12/09/2016

Our weather specialists have been busy monitoring and forecasting the interesting weather patterns that have occurred over the Snowy Mountains region to date in 2016.

The dramatic turn of climate conditions from very dry to very wet has eventuated largely as we were forecasting earlier in the year. Conditions have turned from one of the driest summers on record to one of the wettest autumn/winters on record. This has included some significant inflow events such as around 22 July when we saw the average inflows for the Scheme for the month of July occur in one week alone.

For the statisticians, inflows are now tracking at roughly a 9 per cent probability of exceedance, meaning that we would only expect nine in every 100 years to be wetter. With only four months of the water year passed, we have received well over half of our annual inflows.

As well as the constant and careful management of diversions and forced generation that these very wet conditions require within the Scheme, we are also working closely with stakeholders downstream to make sure key information is exchanged and there are no surprises. This includes the water authorities of NSW Department of Primary Industries – Water, Water NSW and the Murray Darling Basin Authority who operate the major storages downstream of us, as well as our local communities who live and work in an around the Snowy Scheme.

There is still a healthy snowpack on the hill so we are planning for continued wet conditions for spring and early summer which will keep our people and assets on their toes and doing what they do best. The outlook into summer is less certain, but with such a wet catchment we are not expecting things to turn dry any time soon!

News

Experiencing wet conditions

07/09/2016

What a difference a couple of months make! Earlier in the year we were preparing for drier conditions off the back of El Nino but, as our Snowy Hydro climate scientists predicted last edition, we are now experiencing decidedly wetter conditions. With only four months of the water year passed, we have already received well over half of our annual inflows and the snowpack hasn’t started to melt yet. Already we have seen some high inflow events in July which affected landholders around the Murray; and NSW water authorities are carefully watching the Murrumbidgee side to manage any water issues that could arise there.

Snowy Hydro is working with local emergency services and property owners to ensure the lines of communication are open and we update people regularly on the conditions we are experiencing on the waterways across our operations. As the snow melts and inflows into the Scheme increase, it’s important local communities and landholders are kept abreast of any major movements of water. We will continue to work with local authorities and communities in the coming months to carefully manage any water events as they arise.

On a pleasing note, Snowy Hydro has ended the 2015/16 financial year in a strong position. This is the first full year that our recent acquisitions – our gas power station in Colongra and diesel assets in South Australia, as well as Lumo Energy and Direct Connect – have contributed to our financial results.

We hit some significant milestones as a business this year – exceeding more than $2 billion in revenue and passing the one million retail customer mark – a position we have sustained and continue to grow. Our retail businesses – Red Energy, Lumo Energy and Direct Connect – are all working together to attract and retain customers, focusing on superior customer service and industry leading customer satisfaction scores. We have more than 1200 staff working in our retail businesses in Melbourne and we are working to bring them all together under one roof by next year.

Our generation business has also had a strong year. Generation levels have increased as market and operational conditions improved. We are focused on improving the performance of our assets across the fleet and are currently working on a major upgrade of one of the units at Murray 1 in Khancoban, meaning more Snowy Hydro workers will be located in and around that region over the coming months.

We would love to grow support for Red Energy in the Snowy Mountains and, as such, we have been sponsoring local events and festivals and we’re once again sponsoring the ski season this Winter. As a local company with such a long and proud history in the Snowy Mountains, we want to ensure that the communities we live and work in can get the benefit of being our customers, with energy backed by the mighty Snowy Scheme. Our field sales teams have been out and about in the Cooma and Tumut regions over the last few months and will continue to encourage households and businesses to get on board with Red.

Shortly we will be conducting our biennial community research so you may receive a phone call asking you to spend some time talking about Snowy Hydro, how we communicate with you and your understanding of our business and its challenges. If you are approached, we would greatly appreciate you spending the time to give us your thoughts. It’s all confidential and anonymous, of course. It will help us to ensure we are doing the right things to keep you informed about our business. In the meantime, stay safe and dry!

News

Winter is on its way

24/06/2016

Winter is almost upon us and that means the Snowy Mountains region is gearing up for the peak tourism season where tens of thousands of visitors come to the region to enjoy the snow, as well as the hospitality and scenery that locals get to enjoy all year round.

Snowy Hydro, through our retail energy company Red Energy, will once again sponsor the ski fields this year so keep your eyes and ears out for our Red Energy signs and sounds on local radio stations at Thredbo, Perisher and Charlottes Pass. As a local company employing hundreds of people in the region, we’re proud to back the Snowy Mountains and get the message out about our 100 per cent Australian owned and operated energy brand – Red Energy – which is backed by the mighty Snowy Hydro.

Red Energy has been a major sponsor of festivals and events across the region throughout the year, including the very successful Back to Cooma Festival over the Easter long weekend and the more recent Festival of the Falling Leaf in Tumut. Our enthusiastic staff are always happy to chat to potential customers about the benefits of switching to Red Energy and we have been working with businesses across the region in the past few months, spruiking the benefits of Red Energy which is an industry leader in customer service.

With the arrival of winter, locals and visitors alike are keen to know all about the predictions for snowfall. Accurately predicting the weather is a tough business. Snowy Hydro is incredibly lucky to have a talented team of climate scientists who work with us to read and interpret climate indicators to give us as in-depth a view as possible about predicted rainfall, snowpack and inflows to the Snowy Mountains Scheme.

But broadly, we are looking to move out of El Niño with a high chance of La Niña meaning the next few months are looking to be wetter than average, but also warmer. This is good news for predicted inflows into the Snowy Scheme and means we will have healthy water levels to sustain higher levels of generation across the Scheme this year and to deliver downstream to town water supplies, the environment and irrigators.

On the generation front, we have just completed major upgrade works at our Tumut 1 Power Station at Cabramurra and will be moving our major works team to Khancoban to start major works on our Murray 1 Power Station. This is good news for the Khancoban community as, at its peak, we can expect around 80 additional staff working in the region with around 40 staff there permanently for the predicted works over at least a six month period. We understand how important it is to invest in and support our local communities to ensure they remain healthy and vibrant for our workforce and their families.

Lastly, an important reminder about safety. At Snowy Hydro, the safety of our employees and the people that live around and interact with the Snowy Scheme, is our highest priority.

We have noticed in recent times an alarming increase in the number of near misses on the roads around the Snowy Mountains. We drill into our staff the importance of safe driving and the majority of our Snowy Hydro car fleet has speed monitors installed which alert us when drivers are driving over the speed limit. Country roads have their own challenges – wildlife including kangaroos and brumbies, snow, rain and visibility challenges, as well as large trucks and caravans.

Please take care on the roads in and around the regions. Adjust your speed to suit the conditions and keep a watch for other drivers who may be doing the wrong thing. Thankfully, none of our near misses has resulted in serious injury to our staff. But you can never be too careful with your life. It’s critically important that everyone goes home in the same shape, or better, each and every day. Take care when you’re out there.

News

Snowy Hydro releases Annual Review for 2015

12/11/2015

In 2015 Snowy Hydro released an Annual Review documment.  This review outlines our financial, environmental and safety performance across the year as well as our contribution to the communities we operate in.  If you would like to download a copy click here