Tag Archives: Wesfarmers

Decipher to help miners align with new tailings storage facility standards

Wesfarmers-owned software-as-a-service company, Decipher, says it has extended its successful TSF cloud platform to provide a solution to simplify the process of tailings storage facility (TSF) data disclosure as well as helping companies align with the new global tailings standard.

The recent Global Standard on Tailings Management was launched on the August 5, 2020. The historic agreement includes six topic areas, 15 principles and 77 auditable requirements, which covers the entire TSF lifecycle – from site selection, design and construction, management and monitoring, through to closure and post-closure.

With an ambition of zero harm to people and the environment, the standard significantly raises the bar for the industry to achieve strong social, environmental and technical outcomes by elevating accountability to the highest organisational levels and adds new requirements for independent oversight, Decipher says.

“These recent initiatives have encouraged mining companies to respond quickly to public demand for more transparency which has highlighted the need for a software solution which can improve tailings data management, reporting, monitoring, compliance and governance,” the company said.

This is where Decipher’s technology comes into play.

Decipher Chief Executive Officer, Anthony Walker, said the resources industry is actively seeking easily implemented, cost effective and globally accessible solutions.

“The early adoption from Tier 1 miners and general interest has been phenomenal indicating that there is a real need for a TSF data disclosure solution; it excites us that our technology platform can be leveraged to support better management and monitoring of tailings storage facilities,” he said.

Topic Area VI of the new standard requires operators to support public disclosure of information about tailings facilities, and participate in global initiatives to create standardised, independent, industry-wide and publicly accessible information about facilities. For example, the recent Investor Mining and Tailings Safety Initiative called upon 727 extractive mining companies to make public disclosures about their TSFs to form an independent global database – The Global Tailings Portal, developed by GRID-Arendal.

Due to manual processes, and often disparate and siloed datasets, mining operators have estimated it took them around six weeks per site to collate their tailings data, according to Decipher. “With many operators having well over 50 sites, this process is challenging and surfaced many inefficiencies,” it said.

After hearing these frustrations from the industry, Decipher designed a tailings database solution to help companies easily capture, manage and disclose tailings data, enabling them to meet data provision requests from industry groups such as the Investor Mining and Tailings Safety Initiative, it said.

Decipher has also been working closely with GRID-Arendal to create an API to facilitate automatic update of tailings data within the Decipher platform directly to the Global Tailings Portal.

“We believe this will significantly increase efficiency and provide a massive time savings for mining operators who choose to disclose regularly,” the company said.

Topic Area III of the standard aims to lift the performance bar for designing, constructing, operating, maintaining, monitoring, and closing facilities.

Recognising tailings facilities are dynamic engineered structures, this topic area requires the ongoing use of an updated knowledge base, consideration of alternative tailings technologies, and a comprehensive monitoring system.

“Decipher’s TSF solution is trusted by environmental, tailings, geotechnical and management teams globally to help improve monitoring, compliance, reporting, operational visibility and safety,” the company said. “The platform brings together data from laboratories, IoT devices, LiDAR, CCTV, drones, inspections and remotely-sensed platforms to serve users with up-to-date information to provide key data and insights, enabling teams to effectively monitor, govern and operate their TSFs.”

Armed with Decipher’s Tailings Database solution, Decipher says. customers can:

  • Comply and meet requests for data provision from industry groups such as COE, ICMM, UNEP, PRI, Global Tailings Review and more, with fields embedded for simple reporting and tracking;
  • Store an endless variety of tailings data in one location which is otherwise managed by a number of teams in disparate systems;
  • Operate with increased confidence knowing required data is being collected and monitored;
  • Easily visualise their operational TSF data on the map;
  • Cluster data into key areas such as safety, risk, compliance, construction, design, roles and responsibilities;
  • Assign actions and tasks for data collection with a register and audit trail of all actions and respective statuses to monitor progress, and reminder and escalation notifications;
  • View dam data across multiple sites in a single screen with the ability to easily export for reporting;
  • Facilitate automatic updates to databases and portals based on integration capabilities with third-party systems or public portals;
  • View spatial visualisation to display tailings dams in proximity to surrounding environment and communities;
  • Better align with standard such as the Global Tailings management; and
  • Access custom reports.

Ora Banda’s Davyhurst gold mine restart to be powered by LNG

Ora Banda Mining and Wesfarmers’ liquified natural gas business, EVOL LNG, have signed a new long-term agreement to bring LNG to the Davyhurst gold mine in Western Australia’s Goldfields region.

The gold mine is aiming to restart production in January 2021 after being placed into care and maintenance in 2018.

Ora Banda’s definitive feasibility study (DFS) for the Davyhurst Restart project outlined a production target of 418,000 oz of gold over an initial five-year mine life based on an ore reserve of 460,000 oz (6.1 Mt at 2.4 g/t Au) from six deposits within 50 km of the existing 1.2 Mt/y plant. The plant is being refurbished by GR Engineering Services.

EVOL LNG’s Manager, Nick Rea, said the business had proven its winning LNG solution to the mining industry over the past 12 years with its customer base continuing to grow.

“We are excited to support the Davyhurst mine back into production,” he said. “Ora Banda is now our ninth mining customer and we are keen to provide them with the benefits and value that are afforded to EVOL LNG’s customers.”

EVOL LNG will build, own, operate and maintain the on-site LNG storage and vaporisation facility at the mine. The facility will use EVOL LNG’s modular design, which, the company says, allows for fast installation and expandability if the mine’s energy requirements increase in the future.

Ora Banda Mining’s Managing Director & CEO, David Quinlivan, said: “Ora Banda’s agreement with EVOL LNG has enabled the company to secure a stable long-term energy solution for Davyhurst on terms consistent with those outlined in the DFS. The use of LNG as the primary fuel source for the Davyhurst power station also provides significant
environmental benefits.

“The company estimates its power generation greenhouse gas emissions will be reduced by approximately 25,000 t during the initial five years of operation when compared to conventional diesel power generation.”

The mine will use EVOL LNG to fuel a 7.5 MW gas-fired power station, with supply planned to commence from December 2020.

The LNG will be supplied from EVOL LNG’s Kwinana production facility in Western Australia, which was expanded earlier this year. Planning is underway for the next expansion to meet the growing market demand.

Adaman’s Kirklalocka gold project to be powered by LNG

Adaman Resources’ owned Kirkalocka gold project, in Western Australia, is set to be powered by LNG after the asset owner and EVOL LNG signed a agreement.

The long-term arrangement, between EVOL and Adaman Resources’ wholly-owned subsidiary Kirkalocka Gold SPV Pty Ltd, will see EVOL LNG fuel Zenith Energy’s 14.5 MW power station, with supply planned to commence from September 2019.

The gold mine, around 70 km south of Mt Magnet in the mid-west region of Western Australia, is set to restart operation after more than a decade, with the mine’s new owners refurbishing the processing plant and increasing its capacity to over 2.2 Mt/y.

EVOL LNG and Wholesale Manager, Nick Rea, said the use of LNG as an alternative to diesel will help minimise the mine’s carbon emissions.

“LNG produces 25% less CO2 emissions than diesel, and during the initial six years of operation, the mine will avoid 50,000 t of greenhouse gas emissions by fuelling its power station with LNG instead of diesel. This is the equivalent of keeping around 3,000 cars off the road,” Rea said.

EVOL, part of Wesfarmers Chemicals, Energy & Fertilisers, will build, own, operate and maintain the on-site LNG storage and vaporisation facility at the mine, it said. “The facility will use EVOL LNG’s modular design which allows for fast installation and expandability to suit the mine’s growing energy requirements,” the company added.

Adaman Resources’ Chief Executive Officer, Craig Bradshaw, said EVOL LNG will provide environmental, financial and economic benefits for the company.

“Utilising LNG as an alternative to diesel-fired generation will significantly reduce our energy costs and exposure to volatile diesel prices. Based on the current diesel price, we estimate our energy costs to be reduced by more than A$13 million ($9 million) during the first six years of operation,” he said.

EVOL’s Rea said Kirkalocka was the company’s third major contract in the mid-west in recent years; he sees huge potential for growth in this region.

“The scarcity of gas pipelines and absence of grid power would otherwise force off-grid mines to use diesel for power generation, but we are able to provide a much better solution with LNG. It’s clean, safe, reliable and lower cost than diesel.

“We have proven ourselves to the mining industry over the last decade, with seven mine sites now powered by EVOL LNG,” he said.