In light of the COVID-19 pandemic, TasNetworks is reviewing all work priorities, including those relevant to Marinus Link and the supporting North West Tasmania transmission developments.

TasNetworks provides an essential service: delivering Tasmania’s energy supply. We are taking calm but decisive action to limit the risks posed by COVID-19 and prepare for all scenarios. We are focussed on supporting the continuing good health and safety of our team members and community, and on protecting our key operations. While we do this, we expect that some project timelines will be impacted by delays.

TasNetworks is working through forward plans for Marinus Link and the supporting North West Tasmania transmission developments with our Shareholding Ministers, including COVID-19 considerations. We continue to prepare for future engagement activities, to be ready to activate once the pathway through COVID-19 is clearer.

We are flexible
Due to these circumstances, planning for engagements needs careful review. We appreciate that the current uncertainty presents challenges for people to engage in these processes. We are committed to maximising engagement opportunities, recognising that individual circumstance may vary. To that end, we will work with landowners and other interested parties in a tailored and respectful manner.

When the time is right and with respect to communities, we plan to have:

  • Ongoing discussions with landowners as part of the route selection process and establishing access agreements to conduct surveys.
  • Discussions with Hampshire to Staverton communities regarding any route alternatives, other network assets and infrastructure including proposed switching stations and associated visual impact assessment.
  • An updated schedule of engagement on the remaining North West Tasmania transmission developments.

We’d like to hear from you about how we can engage with you and your community during this time so please get in touch via the contact details below.

Our current focus for engagement:

We are here

Please get in touch via our project email and phone line with any questions about the project, or if you want to find out more on the TasNetworks website.

Phone: 1300 127 777

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It’s no secret that today’s women face barriers, both in and outside of the workplace. While gender diversity and equality have come a long way, women are still under represented in Science, Technology, Engineering and Mathematics (STEM). At TasNetworks’ Project Marinus, women are carving out their own place on the $3.5 billion project. We chatted to two women working on the interconnector project about role models and stereotypes for International Women’s Day.

Bess Clark – General Manager

The theme for IWD this year is #eachforequal, drawing on the notion that an individual’s small actions can have an impact on our larger society. What are some small things you’re doing to help accelerate gender equality?

Well one of the little things I try do to, particularly over Christmas, is just encourage people to take time off to go and see kids’ school plays and neighbours’ events. It’s part of broader community and life – actually recognising these things are important and makes rich humans. It’s also about blocking out dairies, and spending time with families. I’ve actually had positive feedback that this is something that’s not always done.

The other thing that I’m getting more conscious of at TasNetworks is having female representatives on panels. Having women speaking at conferences and forums ensures we have that visible representation of competent females leading and bringing expertise to the work we do.

“You can go to lots of forums and conferences and it’s all blokes in suits sitting on a stage; so it’s quite nice to see females in suits.”

What advice would you give to a women in a male-dominated industry?

I’ve always worked in male-dominated industries; I come from a farming background – which is traditionally very male-dominated, and now in the energy sector, which is also very male-dominated.

I didn’t necessarily see its impact – it’s just what I’m used to, but looking back, I’ve actually been incredibly supported and coached by male peers and mentors and really benefited from it.

A lot of the blokes I worked with haven’t been afraid to call a spade a spade, however, they’re inherent biases we all have about our gender; some of the biases might make it harder for women, or in fact people looking after families.

“It’s actually about getting comfortable as a society to talk more openly about things that affect people’s lives and how they turn up each day.

“We can be much more honest about how need to work and interact with each other.”

Jane Barrow – Project Management Lead

What do you believe is the biggest challenge for the generation of women behind you?

Women still tend to bear most of the work at home. It’s encouraging to see more young fathers taking on home responsibilities, but this needs to become the norm. Currently, many women in senior positions either don’t have children, or have a partner that takes on the home responsibilities; flexible working arrangements for both men and women needs to become more normalised.

“Stay true to your own values and goals.”

What are some small things you’re doing to help accelerate gender equality?

I’m providing flexible working arrangements for those who report to me,
encouraging my daughters to be self-sufficient and pursue their own goals, and also influence their partners to be accepting of this. I’m also working to encourage discussion in the workplace about issues that are traditionally seen as women’s issues.

“Women are able to achieve in diverse and non-traditional areas.”

What assumptions about women would you like to change?

  • That we are all the same;

  • That we can’t read maps;

  • That older women are not able to learn new things;

  • That we all have the same issues.

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TasNetworks has extended the closing date for submissions to the Marinus Link Project Assessment Draft Report until 6th April 2020.

This will allow interested parties more time to make a submission. Submissions can be sent to

Our Project Assessment Draft Report, together will supporting technical information, can be found here.

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TasNetworks has begun marine surveys in the Bass Strait as an important next step in delivering a ‘shovel ready’ Marinus Link and supporting transmission project. Work will be undertaken in Victorian State Waters and the Waratah Bay Coastal Reserve over the coming weeks.

Marine surveys of the sea bed are part of preliminary works as the proposed Marinus Link and supporting transmission major infrastructure project moves into the ‘Design and Approvals’ stage.

The survey work will help determine the best route for Marinus Link’s undersea cables, and will mainly be using sonar technology to measure the surface and subsurface of the sea bed. This survey work will be carried out in February and March 2020 dependent on weather conditions.

Progressing the ‘Design and Approvals’ stage is made possible thanks to $56 million in funding provided by the Australian Government in an announcement by the Prime Minister in 2019.

The Marinus Link Business Case Assessment Report was released in December 2019 with $20m in funding support from the Australian Government through The Australian Renewable Energy Agency (ARENA) and the Tasmanian Government through TasNetworks.

The report demonstrated that a 1500 MW Marinus Link is technically feasible and commercially viable and that work should continue to deliver a ‘shovel ready’ Marinus Link to support the National Electricity Market as Australia transitions to a renewable energy future.

Marinus Link is essential infrastructure to strengthen the national electricity grid and unlock Tasmania’s potential as a renewable energy powerhouse and the Battery of the Nation, delivering low-cost reliable and clean energy to customers around Australia.

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An opportunity to engage with TasNetworks about the proposed Marinus Link second Bass Strait Victoria – Tasmania electricity interconnector.

TasNetworks has a number of engagement forums scheduled in the coming weeks as part of the public consultation process for the Marinus Link Project Assessment Draft Report (PADR).

The Marinus Link PADR was released in December 2019, and is the next step in the Regulatory Investment Test for Transmission (RIT-T) process to determine whether Marinus Link could be developed as a regulated transmission service.

The engagement forums will provide a summary of the findings and assumptions of the PADR and a project update, including the findings of the Australian Energy Market Operator’s draft 2020 Integrated System Plan, and our next steps for the project.

We also note the Energy Security Board’s work to progress cost allocation methodology for interconnectors.

The PADR and supporting summary document is available from the Marinus Link website here.

The Marinus Link Business Case Assessment, which was released alongside the PADR, and a summary document and fact sheet can be downloaded here.

Anyone interested in learning more about the proposed economic market modelling, and/or making a submission on the Marinus Link and supporting transmission RIT-T Project Assessment Draft Report, is encouraged to attend one of our RIT-T industry engagement forums.

Registration is free and open to all interested parties, but will close 7 days prior to the commencement of each event.

Please feel free to share this invitation with your colleagues.

Forum information:

Monday 24 February 2020, 9am-12pm
Karstens, 123 Queen Street, Melbourne
Register online at by 17 February, 2020

Monday 2 March 2020, 9am-12pm
The Astley Room, Derwent Entertainment Centre, 618 Brooker Hwy, Glenorchy
Register online at by 24 February, 2020

Thursday 5 March 2020, 9am-12pm
Tattersalls Club, 181 Elizabeth Street, Sydney
Register online at by 27 February, 2020

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TasNetworks has explored a number of potential corridors to host a new electricity transmission development between Hampshire and Staverton in North West Tasmania.

The proposed development would increase the capacity of North West Tasmania’s transmission network, supporting new renewable energy projects such as the proposed Robbins Island and Jim’s Plain Renewable Energy Parks and Battery of the Nation.

In identifying transmission corridors, TasNetworks considers environmental impacts, cultural heritage sites, land-use planning requirements, complex energy system requirements, constructability, total project development costs, and many other factors.

Our design seeks to minimise adverse impacts on landowners, businesses and conservation areas, and we have also taken into account tourism, visual amenity, high value agriculture and broader community values.

After talking to landowners, we are now publicly announcing a proposed route within the favourable corridor, which is available below, and can be viewed either section-by-section, or as a whole.

Landowner feedback is critical and will help to further refine or confirm sections of the proposed route. Community input will also be taken into consideration in finalising a proposed route, and will also help to inform design and construction considerations to reduce impacts, where possible.

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TasNetworks is pleased to release its Business Case Assessment and Project Assessment Draft Report. Media releases can be found below.

TasNetworks releases Business Case Assessment for a second Bass Strait electricity interconnector

From Lance Balcombe – TasNetworks CEO

TasNetworks is pleased to release the Business Case Assessment considering Marinus Link, a second Bass Strait electricity interconnection between Victoria and Tasmania.

This is the key deliverable in the $20 million Feasibility and Business Case Assessment, jointly funded by the Tasmanian Government through TasNetworks and the Australian Government through the Australian Renewable Energy Agency (ARENA).

“TasNetworks’ analysis shows that Marinus Link and supporting transmission will support Australia’s transition to a low-cost, reliable and clean energy future.

“The investment in Marinus Link and supporting transmission will provide additional dispatchable capacity across Bass Strait to support a transforming National Electricity Market (NEM).

“I’m pleased to announce that the business case is very positive, and shows that a 1500 MW Marinus Link and supporting transmission are technically feasible and commercially viable, providing substantially greater benefits than costs under all scenarios modelled and a commercial rate of return to owners as a regulated service.

“Economic analysis undertaken indicates that in addition to benefits to the energy market, the project delivers significant broader economic contributions from the development, construction, and operation of Marinus Link and supporting transmission, including economic value add forecast to be up to $1.4 billion and 1,400 of jobs in Tasmania and $1.5 billion and 1,400 jobs in Victoria.

“Marinus Link and supporting transmission also unlocks an additional pipeline of investment in renewable energy and long duration energy storage development in Tasmania estimated to be up to $5.7 billion and 2,350 jobs at peak of construction,” Mr Balcombe said.

TasNetworks’ economic analysis for the project has considered the electricity market benefits of Marinus Link and supporting transmission to customers in the NEM, measured under the Regulatory investment test for transmission (RIT-T).

The findings of the RIT-T are presented in the Project Assessment Draft Report (PADR), which has been released today for public consultation.

TasNetworks continues to raise awareness and understanding and promote opportunities for stakeholders to provide feedback comment on Marinus Link and supporting transmission.

This includes engagement undertaken and planned on preliminary route options, environmental and cultural matters, pricing frameworks, economic benefits and costs, and the business case assessment process.

“Marinus Link and supporting transmission would unlock Tasmania’s cost-competitive generation and storage resources.

“Together they are part of the lowest cost solution to provide dispatchable, clean energy to the NEM where and when it’s needed.
“Therefore, we conclude that work should continue to progress Marinus Link and supporting transmission upgrades to a ‘shovel ready’ national infrastructure project, able to be in service from 2027,” Mr Balcombe said.


Media contact 

Rowan Dix (03) 6271 6271 | 0436 919 989

TasNetworks releases Project Assessment Draft Report (PADR) as next step in Marinus Link Regulatory Investment Test – Transmission (RIT-T) process.

From Lance Balcombe – TasNetworks CEO

“TasNetworks is pleased to announce the release of the (Project Marinus) Project Assessment Draft Report (PADR). The report’s release is an important milestone for the project and the next step in the Regulatory Investment Test – Transmission (RIT-T) process for Marinus Link, the proposed second Bass Strait interconnector,” said Mr Balcombe.

The PADR builds on the Project Marinus Project Specification Consultation Report (PSCR) taking into account feedback from submissions received during the consultation period following the PSCR’s release in July 2018.

“Economic analysis undertaken for the RIT-T demonstrates that Marinus Link and supporting transmission will provide an economic advantage to Australia, with benefits significantly outweighing costs in all modelled scenarios.

“A 1500 MW Marinus Link would deliver the most benefits to customers.

“There are a range of optimal timing outcomes depending on the assumptions, and Marinus Link and supporting transmission could be in service from 2027,” Mr Balcombe said.

The RIT-T requires consideration of all ‘credible options’ that would meet the ‘identified need’.

In the PSCR, the identified need was described as:

The characteristics of customer demand, generation, and storage resources vary significantly between Tasmania and the rest of the NEM.

Increased interconnection capacity between Tasmania and the other NEM regions has the potential to realise a net economic benefit by capitalising on this diversity.

The ‘credible options’ are a choice of transmission capacity options for Marinus Link that range from 600 to 1500 megawatts.

“The findings and recommendations of the PADR are that a 1500 MW Marinus Link and supporting transmission upgrades deliver a net market benefit by providing a cheaper supply option for mainland NEM regions.

“The PADR analysis shows that a Marinus Link developed in two 750 MW stages provides optimum electricity market benefits with the first stage including the proposed supporting Tasmanian transmission upgrades to be commissioned in 2028, and the second 750 MW stage commissioned in either 2030 or 2032 depending on market needs,” said Mr Balcombe. 

TasNetworks also continues to work with the Australian Energy Market Operator (AEMO) as it prepares its draft and final 2019-20 Integrated System Plan (ISP), which considers future transmission investment needs for the NEM.

TasNetworks looks forward to receiving feedback on the PADR over the coming months as part of the RIT-T consultation process including briefings in Melbourne, Sydney and Hobart in early 2020.

To register for these public events please contact the project team at TasNetworks by emailing


Media contact 

Rowan Dix (03) 6271 6271 | 0436 919 989

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From Lance Balcombe – TasNetworks CEO

Today Hydro Tasmania released new analysis showing how the Battery of the Nation project can help Victoria as it transitions away from fossils fuels, by providing ‘dispatchable’ Tasmanian hydro generation and deep storage to support an affordable, reliable and clean electricity supply for Victorian customers.

The Hydro Tasmania white paper: How Battery of the Nation can contribute to Victoria’s energy needs and objectives, highlights the risks of earlier than expected closure of coal powered generation as a potential catalyst for wholesale power price increases and unreliable supply of electricity to customers throughout the National Electricity Market.

The paper released by Hydro Tasmania today outlines how the Battery of the Nation initiative can also support the renewable energy ambitions of Victoria, by providing essential ‘firming capacity’ for low-cost variable wind and solar generators when the sun isn’t shining and the wind isn’t blowing.

“TasNetworks is finalising the Business Case Assessment into a second Bass Strait interconnector, Marinus Link, which is due in December. Hydro’s findings will be considered as part of TasNetworks’ assessment,” said Mr Balcombe.

“TasNetworks welcomes the latest Hydro Tasmania analysis because it further demonstrates the need for Marinus Link and its supporting transmission as the enabling infrastructure to unlock Tasmania’s dispatchable hydro generation and deep storage potential,” said Mr Balcombe.

“Hydro Tasmania’s white paper highlights the challenges and opportunities we face as Australia transitions to low-cost renewable electricity. The white paper shows that Tasmania can play a significant role in helping our neighbours in Victoria and the NEM more broadly to ensure a secure and reliable supply of electricity,” Mr Balcombe said.

“It’s encouraging to note Hydro’s call for proactive support for interconnection. Without investment in Marinus Link, the contributions that the Battery of the Nation initiative can make to Victoria’s objectives and the broader NEM cannot be realised,” Mr Balcombe said.

“TasNetworks also welcomes the recent Commonwealth Government announcement of a one billion dollar grid reliability fund, which recognizes the critical role of electricity networks in a transforming energy sector,” Mr Balcombe said.

Media contact Dan Sinkovits 0417 767 124

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Online Engagement Hub

October 28th, 2019

We are looking forward to working closely with communities throughout all stages of Marinus Link and North West Tasmania’s transmission upgrades. Our online engagement hub provides an easy way to find out about upcoming events and activities and share your thoughts and ideas on Marinus Link and the North West Transmission upgrades. The 2019 engagement program focuses on new transmission routes that will be proposed for North West Tasmania. This includes a new transmission route that we are investigating between Hampshire and Staverton. Landowners will be contacted in November 2019 to support these investigations, and feedback will then be sought from the wider community in late 2019.  

Share your ideas and provide feedback about Marinus Link and North West Tasmania’s Transmission Upgrades below. Find out about upcoming community pop-ups and workshops, our online survey and project information and updates.

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Media Release – From Lance Balcombe – TasNetworks CEO

“The technical and economic analysis of Marinus Link and supporting transmission shows the benefits of more interconnection between Tasmania and mainland Australia. Marinus Link will unlock Tasmania’s renewable energy and storage resources, helping Australia’s transition to a low emissions future. Recent analysis highlights that Marinus Link could triple Bass Strait transmission capacity.”
TasNetworks, working with the Australian Energy Market Operator (AEMO) has identified that a 1500 MW capacity Marinus Link is technically feasible. TasNetworks analysis is that this capacity will deliver benefits to the National Electricity Market (NEM) and generate significant economic stimulus in regional Tasmania and Victoria. The findings will be outlined in detail in the Project Marinus Business Case Assessment due this December.
“A 1500 MW Marinus Link represents an increase in capacity of 300 MW from the previous modelled capacity of 1200 MW. The design ensures that this capacity can be supported by both the Tasmanian and Victorian power systems”.
In addition to providing access to Tasmania’s ‘world-class’ wind resources, this increase in interconnector capacity will unlock Tasmania’s cost-competitive storage resources, as identified in Hydro Tasmania’s recently completed pre-feasibility study, jointly funded by the Australian Renewable Energy Agency (ARENA).
Both AEMO and the Energy Security Board (ESB) recently highlighted the need for investment in critical national transmission infrastructure to be delivered in time to meet key market conditions and support a transforming energy sector.
AEMO’s recent insights paper showed that the Nation needs a portfolio of flexible generation and energy storage options and supporting transmission infrastructure right across the NEM. These options need to be in place in time to meet significant retirement of coal generation, which could be as soon as the mid 2020s.
Project Marinus considers Marinus Link and the supporting transmission. TasNetworks is undertaking the business case assessment, with funding support from the Australian Renewable Energy Agency (ARENA), the Tasmanian Government and the Commonwealth Government. As part of this assessment, the Regulated Investment Test – Transmission (RIT-T) for Project Marinus is underway and engagement with government, industry, customers and communities continues.
Media contact Dan Sinkovits 0417 767 124

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Responding to COVID-19

In light of the COVID-19 pandemic, TasNetworks is reviewing all work priorities, including those relevant to Marinus Link and the…
More …

It’s not all blokes in suits: Project Marinus women find power in male-dominated energy sector

It’s no secret that today’s women face barriers, both in and outside of the workplace. While gender diversity and equality…
More …

PADR submission date extended

TasNetworks has extended the closing date for submissions to the Marinus Link Project Assessment Draft Report until 6th April 2020….
More …