Integrating solar with LNG can cut Australia's carbon footprint


Wednesday, 27 October, 2021

Integrating solar with LNG can cut Australia's carbon footprint

National Energy Resources Australia (NERA) reports that the integration of solar energy into Australia’s liquid natural gas (LNG) industry could dramatically reduce Australia’s carbon footprint while also creating thousands of additional jobs.

A report released today by Charles Darwin University (CDU) and NERA (National Energy Resources Australia), and produced with support from Santos, Sun Cable and the Northern Territory Government, uses the Santos-operated Darwin LNG facility as a technical case study, to examine the potential to decarbonise LNG facilities at sites across the NT, Queensland and WA via electrification and large-scale renewables.

The report’s authors concluded solar energy integration was potentially economically viable to offset up to 50% of the plant’s emissions from electricity generation. Additional savings of nearly three times that amount could be offset with solar energy by retro-fitting ‘helper motors’ to partially electrify the plant’s compression turbines which currently run on LNG.

Professor Suresh Thennadil, Director of the Energy and Resources Institute at CDU, said: “If this integration was implemented at all of Australia’s LNG plants, the initiative could reduce Australia’s CO2 emissions by around five million tonnes per annum. That’s around 1% of Australia’s total emissions” (and up to 9% of the reductions required to meet Australia’s 2030 targets).

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The NT Minister for Renewables and Energy, Eva Lawler, said the findings showed the potential of solar energy to slash the emissions of the country’s LNG sector.

“This innovative collaboration demonstrates the opportunity for the Northern Territory — and Australia — to be a leader in the journey to Net Zero,” she said. “Leveraging our renewable resources to power the LNG sector could reduce the Territory’s emissions, create jobs, and position Territory exports as a low-carbon premium product. This opportunity complements other initiatives being advanced in the Northern Territory, including developing a carbon capture and storage hub and building a renewable hydrogen industry.”

Miranda Taylor, CEO of NERA, said that given the massive potential emissions reductions, government investment is needed.

“With net zero goals being set globally, the LNG industry must explore all opportunities to decarbonise if it wants to stay relevant and sustainable for the decades to come,” she said. “The Australian LNG industry has historically been a relatively high-emissions industry, so seeing how the integration of renewable, solar energy — of which Australia has an abundance — can make dramatic reductions is a big step forward.

“We now need to see more investment to further investigate and implement using this technology to assist in the decarbonisation of LNG. In doing so, we will take strides in establishing Australian LNG as a premium, low-carbon product in the emerging climate-differentiated LNG market.”

The report also found that the integration of solar energy into Australia’s LNG industry could increase the nation’s energy security by saving over 97 million GJ of gas a year — equivalent to more than 10% of domestic demand — and create over 1000 construction jobs and 868 ongoing jobs.

For Sun Cable, who are planning to develop the world’s largest solar farm and battery storage facility in the Northern Territory, the study results provide them with great assurance.

“This study is an important reinforcement of the viability, impact and environmental benefits of Sun Cable’s Australia-Asia PowerLink project for the Northern Territory, wider Australia and our region,” said Sun Cable CEO David Griffin. “The Australia-Asia PowerLink will help unlock economic opportunities by providing affordable, dispatchable, renewable electricity at scale. We can use our abundant levels of solar energy to remove embedded emissions in our domestic and export industries, as well as directly exporting electricity overseas, making Australia a modern renewable energy superpower.”

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