Tag Archives: gas

Coronado Global Resources looks at running updated waste mine gas truck trial at Curragh operations

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Coronado Global Resources’ plan to capture and use open-pit waste mine coal gas from its Curragh operations in the Bowen Basin of Queensland, Australia, are accelerating, with the company confirming at its AGM last week that first gas from pilot wells was achieved in January 2024 with better than anticipated flow rates.

Curragh has been operating since 1983 and was acquired by Coronado in 2018. It is made up of two active open-pit mines – Curragh South and Curragh North – which are serviced by four large draglines, one electric rope shovel, 13 truck and excavator fleets and two coal preparation plants. It produces high-quality, low-vol hard coking coal, semi-soft coking coal, pulverised coal injection and thermal coal.

Curragh’s gas project is targeting the capture and beneficial use of open-pit waste mine coal gas from operations, with priority downstream use cases being for power generation and use  as a diesel substitute in mining fleets.

The company says it now has wells operational, with surface production facility installation works complete and thee anticipated flow rates from first gas achieved in January exhibiting better than anticipated flow rates.

The next steps for the project are to run an updated converted gas truck trial to test feasibility of transitioning to waste mine coal gas conversion on more trucks.

As part of Coronado Global Resources’ emissions strategy, the company conducted a trial to test gas-converted haul trucks, working with its partners Mine Energy Solutions (MES) and Thiess. Over an eight-week period beginning in July 2023, it converted a single 793F haul truck to dual fuel and operated it within a normal production environment. Results from the trial proved that the operational performance of the trucks remained within the normal range of a diesel truck, it noted.

The company said in its recently released 2023 sustainability report: “We also developed an understanding of the key partnerships and requirements for larger-scale deployment and the challenges we need to overcome for operational readiness.”

Achievements and findings from the trial included:

  • Saving of 19,200 litres of diesel;
  • A 17-20% reduction in diesel exhaust pipe CO2 emissions;
  • No observed decrease in truck horsepower, engine life or other components due to burning compressed natural gas (CNG);
  • More than 320 hours of dual-fuel operation and 547 hours of overall operation;
  • No observed decrease in travel time, cycle time or speed on grade; and
  • Operators’ positive feedback that vehicles operated similarly to non-gas 793F haul trucks.

Orica makes headway on decarbonisation plans, cuts 20% cut of GHG emissions from Kooragang Island

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Orica says it has achieved another milestone in its decarbonisation journey, eliminating the first 250,000 t of carbon dioxide equivalent (CO2-e) from its Kooragang Island manufacturing facility with an Australian first deployment of tertiary catalyst abatement technology (pictured).

The installation of three tertiary abatement reactors at its Kooragang Island facility has eliminated the equivalent of 20% of the plant’s total greenhouse gas emissions, for the period from November 2022 to August 2023. This means that for every tonne of nitric acid produced at the facility to produce products for many businesses across New South Wales, including the mining, agriculture, health and food industries, there has been a reduction in nitrous oxide emissions of over 95% compared with 2019 levels.

To facilitate the project, the NSW Government’s Net Zero Industry and Innovation Program co-invested A$13.06 million ($8.33 million), together with Orica’s A$25 million financed by the Federal Government’s Clean Energy Finance Corporation. The Clean Energy Regulator also approved the project as eligible to generate Australian Carbon Credit Units.

Orica Group Executive and President Australia Pacific, Germán Morales, said: “This is another proud and critical milestone in Orica’s decarbonisation journey and ambition to achieve net zero emissions by latest 2050.

“We are accelerating action to reduce greenhouse gas emissions today, ensuring a sustainable future for our manufacturing facilities and supporting customers in achieving their sustainability goals. We are already seeing the benefit of this technology at our Kooragang Island facility, with an annual estimated reduction of 500,000 t of carbon dioxide equivalent. Now, as we continue our decarbonisation efforts, we will focus on installing the same proven technology at our Yarwun facility.”

Having invested to deliver significant reductions in net operational Scope 1 and 2 greenhouse gas emissions across some of its major manufacturing facilities, Orica says it is expecting a total reduction of at least 19% at the end of its 2023 financial year, from 2019 baseline levels. This supports Orica’s accelerated climate target to reduce net operational Scope 1 and 2 emissions by at least 45% by 2030, from 2019 levels.

Orica’s Kooragang Island facility is presently one of NSW’s largest industrial users of gas – using approximately 10-15% of total NSW gas per year. The next step for Orica in reducing these site-based emissions will be the use of renewable hydrogen as a feedstock, rather than natural gas used today. Orica hopes to further reduce its Scope 1 emissions while producing low-carbon ammonia for possible export and freeing up domestic gas supply for Australian households.

Partnering with Origin Energy on the Hunter Valley Hydrogen Hub, Orica is aiming to deliver a commercial-scale renewable hydrogen supply chain in the Newcastle industrial and port zone. The Hydrogen Hub will be located next to Orica’s Kooragang Island manufacturing site in Newcastle, in recognition of the competitive advantages of a strategic location on the Port of Newcastle and an established end market. It is also the only ammonia plant operating on Australia’s east coast with direct access to a deep-water port and the Port of Newcastle’s Clean Energy Precinct.

Penny Sharpe MLC, NSW Minister for Climate Change, Minister for Energy, Minister for the Environment, and Minister for Heritage, today announced funding from the NSW Government’s Hydrogen Hubs Initiative of A$45 million to progress the proposed Hunter Valley Hydrogen Hub on Kooragang Island. The NSW Government funding announcement follows a A$70 million contribution from the Federal Government announced in mid-July.

Orica and Origin recently signed a joint development agreement to progress plans and co-fund the proposed Hub through front-end engineering design, and continue to engage with the local community through the recent public EIS exhibition process.

Morales said: “We are deeply committed to continuing support for our customers by future-proofing our regional manufacturing, jobs and economies. As we progress plans to develop the Hunter Valley Hydrogen Hub, by leveraging our unique location, existing operations, experience and end markets, we will not only address some of our most material greenhouse gas emissions but also create future markets for Orica while supporting our customers as the world transitions.”

Mineral Resources’ achieves energy strategy milestone with Wonmunna solar installation

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Mineral Resources (MinRes) says it has marked an important milestone in its energy strategy with the successful installation of a 2.1 MW solar-battery system at its Wonmunna iron ore project in the Pilbara region of Western Australia.

Located 80 km northwest of Newman, the Wonmunna mine was purchased as an undeveloped project in the 2021 financial year. First ore was achieved just five months after construction began at the site and during the 2022 financial year, production from Wonmunna ramped up to 5 Mt/y.

Installation of the 5B Maverick solar technology at the Wonmunna site – complete with more than 4,000 solar panels – was completed during the 2023 financial year. Following successful testing and optimisation works, the technology is now providing significant benefits for site operations and reducing dependency on diesel fuel, MinRes says.

The combined solar-battery system will produce more that 30% of the mine’s power requirements and ultimately cut diesel consumption by approximately 760,000 litres each year, while reducing the site’s carbon emissions by around 2,000 t/y of carbon dioxide equivalent.

In addition, the crusher at the site is powered 100% by the system during the middle of the day when renewable output meets peak plant load.

During the warmer summer months, the system can achieve more than 40% displacement on any given day – and, with a 20-year life span, it can be redeployed to other operations once Wonmunna reaches its end-of-life, MinRes says.

Chief Executive Energy, Darren Hardy, said the Wonmunna solar and battery array at Wonmunna was a positive step forward in the company’s renewable energy strategy.

“MinRes is committed to pursuing renewable energy opportunities where we can and our team has been working hard to deliver a solar array and battery solution that delivers optimum output at Wonmunna,” Hardy said. “Together with natural gas, renewables will play an important role in our energy future, and MinRes continues to pursue off-grid solar power and energy storage solutions to support our remote locations.”

Gas and LNG power stations currently supporting MinRes’ lithium operations at Mt Marion in the Goldfields and Wodgina in the Pilbara are delivering significant emissions savings, according to the company. This includes a 64 MW capable power station at Wodgina, which is the largest of its kind on a mine site in the southern hemisphere, the company says.

At the upcoming Onslow Iron project, also in the Pilbara, MinRes will install a range of energy solutions designed to offset diesel with alternative fuels and renewable energy options, energy storage, and electrification of mobile equipment and transport.

MinRes says it recognises the need for meaningful action to address climate change and is committed to investing in activities that reduce the carbon intensity of its operations and maintaining best-practice environmental, social and governance performance.

The company’s Roadmap to Net Zero Emissions outlines MinRes’ pathway towards a transition to gas, renewable energy and other emerging technologies to support its operations and reduce its carbon intensity – including the company’s goal to achieve of net-zero emissions by 2050.

Thiess signs ‘industry first’ dual-fuel agreement with Mine Energy Solutions

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Thiess has signed an agreement with Australia-based Mine Energy Solutions that could see the use of locally-sourced gas to displace diesel in large mining trucks using MES’ “currently available and proven” dual-fuel technology.

The agreement to bring lower emission, dual-fuel technology to Thiess’ mining fleet represents a first for a mining services provider in the industry, the company said.

The partnership will commence with the conversion of a fleet of six mining trucks and seek to source gas on site to allow the removal of the equivalent B Double diesel deliveries from local highways, reducing congestion and making it safer for regional families, Thiess said. Longer term, Thiess and MES will seek to expand to full fleet conversion before exploring further opportunities both within Australia and Internationally.

Thiess CEO, Douglas Thompson, said: “Partnerships like this ensure Thiess is playing a role in reducing emissions on our operations and leading the path to decarbonisation of the industry.”

MES’ CEO, Adrian Abbott, added: “We’re proud to partner with Thiess and apply this technology in the Bowen Basin. Our focus is to use locally-sourced gas through the capture and use of fugitive methane contained in the coal resource to enable the average mine site to reduce their greenhouse gas footprint by more than 550,000 t of CO2-e per annum.”

MES’ High Density Compressed Natural Gas (HDCNG®) technology was previously trialled at the New Acland coal mine in Queensland, Australia, with help from New Hope Group and Hastings Deering. This saw a Cat 789C haul truck converted from diesel use to dual-fuel operation using natural gas as the dominant fuel through sequential gas injection.

Red 5 taps Zenith Energy for hybrid power options at King of the Hills gold project

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Red 5 Ltd has entered into a Power Purchase Agreement with a subsidiary of Zenith Energy Ltd that will see the growing Australia-based power producer build, own and operate approximately 30 MW of hybrid power generation capacity to service the needs of the King of the Hills (KOTH) project in Western Australia.

The power inputs as part of the BOO agreement comprise high efficiency reciprocating gas fuel power generation together with a 2 MW photovoltaic solar farm (an example from Zenith’s other work shown above) and a battery energy storage system.

Power supply to the site is planned to commence in the March quarter of 2022 with an initial term of 10 years. The contract includes provision for a potential future upgrade to the power station to support increased plant throughput beyond the initial planned 4 Mt/y run rate, Red 5 says.

Gas will be supplied from the Goldfields Gas Pipeline, 12 km west of the mine, under separate contracts, the company clarified.

Red 5 Managing Director, Mark Williams, said the award of the agreement marked another important construction milestone for the King of the Hills project while, at the same time, helping to achieve one of the company’s environmental, social and governance commitments to reduce the carbon footprint of the project.

“We are pleased to have signed the Power Purchase Agreement with Zenith, an experienced power producer which provided us with a compelling hybrid thermal and sustainable power solution that includes renewable energy,” he said. “Zenith’s combination of a gas and solar power station, supported by a battery energy storage system, provides the efficiency and stability required for the processing plant and infrastructure to enable King of the Hills to be a long-life, low-cost gold producer.”

The KOTH project is an open pit and underground gold deposit with a projected mine life of over 16 years. This could see the company produce 176,000 oz/y of gold over the first six years, according to a recent feasibility study.

Alltype Engineering gassed up in Western Australia

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WestStar Industrial’s engineering construction contracting business, Alltype Engineering, has been awarded contracts to a total value of circa-A$8 million ($6 million) across multiple clients and projects, including A$5 million of contracts in gas transmission.

APA Group has contracted Alltype to deliver multiple gas offtake and metering facility projects throughout the Midwest region of Western Australia. These turnkey multidiscipline projects involve civil, structural, mechanical, piping, electrical and instrumentation scopes, both workshop and site, with remote area working conditions and logistics and eight off-workshop fabricated gas skids to be completed off site.

Included in the projects are a gas lateral offtake and metering station for the Beyondie sulphate of potash project (pictured), a gas lateral offtake and metering project for the Lakeway SO4 potash project, and gas lateral offtake and metering work for Capricorn Metals’ Karlawinda gold project.

WestStar is also scheduled to build a gas lateral metering station for Primero Group at the Kalium Lakes potash project.

WestStar said: “These newly awarded contracts for Alltype continue to demonstrate its strength and reliability in working successfully with APA and the Australian gas industry, including both upstream and downstream projects.

“Furthermore, having fabricated, assembled and FAT tested over 20 modularised gas skid process packages in the last two years, Alltype continue to leverage off this experience and knowhow to fast track aggressive timeline projects with full supply chain control.”

Alltype has commenced the works for APA Group, which are planned to be completed by the March quarter of 2021.

In addition to this work, Alltype says it was awarded its first contract from Newmont at the Boddington gold mine, also in Western Australia. This contract had an aggressive timeline for completion of urgent fabricated plate and piping componentry for a shutdown, which was achieved. The balance of works is in the process of being completed, it noted.

Still in Western Australia, Alltype says it continues to provide goods and services for the three major iron ore developments in the Pilbara, being BHP South Flank, Rio Tinto Gudai-Darri and FMG’s majority-owned Iron Bridge project.

Technology Metals Australia shores up gas supply for Gabanintha vanadium project

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Technology Metals Australia (TMT) says it has entered into a non-binding Memorandum of Understanding (MoU) with APA Group under which TMT and APA have agreed to investigate the provision of gas transportation services along a new gas pipeline to be developed by APA from the south to supply gas to the Gabanintha vanadium project, in Western Australia.

In return, TMT would enter a take or pay tariff over an agreed period linked to the life of the project.

The proposed new pipeline is shorter than the gas pipeline contemplated in the Gabanintha definitive feasibility study (DFS) and is, therefore, expected to deliver material operating cost savings from lower gas transportation charges than those included in the study, the company said.

TMT and APA have agreed to an exclusivity period on negotiation of the gas transportation services for the term of the MoU during which they will negotiate and endeavour to agree the transaction documents.

TMT Managing Director, Ian Prentice, said: “We are very pleased to have entered into this agreement with APA on the development of a proposed new gas pipeline; providing low risk delivery of gas to the project, cost reductions compared to the DFS as well as the opportunity to source gas from the significantly closer emerging Perth basin gas fields.

“APA is a leading Australian energy infrastructure business with 20 years’ experience in building, owning and operating gas pipelines. We will be working together to develop a reliable energy solution for the Gabanintha vanadium project. This represents another key milestone as we progress the development of this lowest cost quartile, large scale, long-life world-class vanadium project.”

The DFS for the Gabanintha vanadium project proposes using natural gas as the heating energy in the roasting kiln and other parts of the process circuit and for electricity generation. The project’s expected maximum and average daily consumption of natural gas is 10.67 Tj and 6.28 Tj, respectively.

The location of proposed new pipeline, which is designed to come from a point to the east of Mt Magnet and extend around 152 km north to the project, is expected to enhance the opportunity for TMT to secure cost competitive gas supply from the rapidly emerging Perth Basin, with potential to further reduce gas transportation charges for the project, the company said.

The Gabanintha DFS outlined an operation with a 16-year-plus mine life, operating at an average vanadium pentoxide production rate of 27.9 MIb/y. This came with a pre-production capital cost of $318 million and operating costs of $4.04/Ib of V2O5.

Newcrest and Chevron Australia sign natural gas agreement

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Newcrest Mining has signed a domestic gas sale agreement with Chevron Australia that will see the energy company deliver domestic gas from its portfolio across the Wheatstone (pictured), Gorgon and North West Shelf facilities, in Australia.

Some 16 PJ of equity domestic gas will be delivered over the 3.5-year agreement, which will begin soon and end in July 2023, according to Chevron.

Chevron Australia Managing Director, Al Williams, said: “Chevron is a leading and growing domestic gas supplier to Australia and we’re proud to deliver new natural gas supply to Western Australian industries, businesses and households.”

He added: “As a reliable and cost-effective way to generate electricity, natural gas is a vital energy source for current and future energy needs, powering local jobs, industry and communities.”

At full capacity, the Chevron-operated Gorgon and Wheatstone natural gas facilities will produce 500 TJ/d of domestic gas for the Western Australia market – enough to generate electricity for 4.3 million households, according to the company.

As a key and growing participant in the evolving Western Australian market, Chevron is actively marketing domestic gas under long and shorter-term arrangements.

FMG to lead from the front in Pilbara renewable energy pursuit

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Fortescue Metals Group (FMG) has signed an agreement with Alinta Energy that will see up to 100% of daytime stationary energy requirements at its Chichester Hub iron ore operations, in the Pilbara of Western Australia, powered by renewable energy.

The Chichester Solar Gas Hybrid project will see the construction of a 60 MW solar photovoltaic generation facility at the Chichester Hub, comprising Fortescue’s Christmas Creek and Cloudbreak iron ore mining operations.

In addition, an approximately 60-km transmission line linking the Christmas Creek and Cloudbreak mining operations with Alinta Energy’s Newman gas-fired power station and a 35 MW battery facility will be constructed, with completion due mid-2021.

FMG said: “Once completed, up to 100% of daytime stationary energy requirements at the Chichester Hub will be provided by solar generation, with the remaining power requirements to be met through the integrated battery storage and gas power station facilities.”

The project is expected to displace around 100 million litres annually of diesel used in the existing Christmas Creek and Cloudbreak power stations, according to FMG.

Fortescue Chief Executive Officer, Elizabeth Gaines, said: “Reliable and competitive energy generation remains an important consideration for the mining sector in Western Australia and as a significant consumer of energy, we continue to identify opportunities that have the potential to lower our costs while also improving our carbon footprint.

“This landmark project is a first on this scale for the Pilbara and will reduce carbon emissions from stationary generation by around 40% at Fortescue’s Christmas Creek and Cloudbreak mining operations, while driving long-term sustainable cost reductions to maintain Fortescue’s global cost leadership position.”

Gaines added that the agreement with Alinta Energy represented a further step in the creation of Fortescue’s Pilbara Energy Connect project, which builds on the company’s previous energy initiatives, including the construction of the Fortescue River Gas Pipeline, the conversion of the Solomon Power Station from diesel to gas generation, as well as a partnership agreement with the Commonwealth Scientific and Industrial Research Organisation to develop and commercialise hydrogen technologies.

As part of the agreement, FMG will invest an estimated $250 million in energy transmission infrastructure to complete the integration of Fortescue’s iron ore operations in the Pilbara into an efficient energy network.

Alinta Energy Managing Director and Chief Executive Officer, Jeff Dimery, said: “We’d like to thank Fortescue and our Chichester Hub project partners for helping to make the company’s long-held vision for a cleaner and more connected energy supply for the Pilbara a reality.

“There’s a lot to be proud of in this project. Working together, we are on the cusp of demonstrating that renewables can drive Australia’s economic powerhouses forward–even for remote and complex industrial applications.”

Alinta Energy will receive federal funding of A$24.2 million ($16.5 million) from the Australian Renewable Energy Agency (ARENA) and A$90 million from the Northern Australia Infrastructure Facility (NAIF), upon satisfaction of standard conditions.

The NAIF loan remains subject to ratification from the Western Australian Government.

NAIF Chief Executive Officer, Laurie Walker said: “NAIF’s A$90 million loan for this project will help provide low emission renewable energy generation for large off-grid customers and paves the way towards the creation of a more interconnected regional energy grid in the Pilbara.

“The project innovatively combines solar and gas fired power to compensate for the variability of solar sourced energy. This investment by NAIF offers the opportunity to make a long-term difference to the Pilbara.”

ARENA Chief Executive Officer, Darren Miller, said: “The project could unlock further investment in renewable energy in the mining sector and other remote and energy intensive operations.

“Alinta’s project will demonstrate how renewable energy solutions can deliver critical energy requirements for major mining operations and help reduce emissions. This will also show how interconnection of loads and different generation and storage -including solar, gas and battery storage -can provide secure and reliable electricity.”

Zenith Energy completes Jundee power station expansion for Northern Star

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Independent power producer, Zenith Energy has completed and commissioned its 6 MW build own and operate (BOO) power station expansion at Northern Star Resources’ Jundee gold mine, in the northern Goldfields region of Western Australia.

The 6 MW of expansion capacity at Jundee adds to the existing 19.2 MW, increasing Zenith’s BOO capacity to 25.2 MW, Zenith said. The power station comprises an upgrade to the existing facility with the installation of an added 6 MW of Jenbacher 620 Spark Ignittion gas generator technology.

The station incorporates natural gas fuelled generators, which will provide the Jundee mine with highly efficient, cost effective and clean gas fuelled power generation into the future, according to Zenith.

The Jundee processing circuit is a conventional CIL plant with a hard-rock processing capacity of approximately 1.8 Mt/y. The process consists of a single toggle overhead eccentric swing jaw crusher followed by a SAG and ball milling circuit incorporating gravity recovery and CIP process, achieving 92% recoveries. Northern Star produced 285,000 oz of gold at Jundee in its 2018 financial year.

Zenith said: “This project demonstrates the company’s ability to design, construct, install and commission expansion projects to meet our existing customers’ changing power supply requirements.”

The full commissioning of the Jundee expansion delivers a 6 MW uplift in installed BOO MW capacity in the company’s portfolio, and a corresponding uplift in revenue from the September quarter and going forward, Zenith said.

With the completion of the Jundee expansion, Zenith has established a strong track record for project delivery, with its portfolio of 219 MW of contracted BOO capacity and a total of 438 MW of total power generation capacity under control, it said.

Zenith Managing Director, Hamish Moffat, said: “We are proud to continue our partnership with Northern Star Resources at Jundee through the delivery of the Jundee Expansion Project, and now look forward to delivering additional reliable, cost effective power to support the Jundee gold mine.”