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Case Studies

Mt Weld

Mt Weld

The project integrates 7 MW of solar, 24 MW of wind, and a 12 MW/12 MWh BESS, enabling “Engine Off” capabilities. The goal is to cover up to 70% of the project’s energy needs with renewable energy by 2026, reducing its reliance on diesel and lowering emissions.

Project Background

The Mt Weld Project, operated by Lynas Rare Earths, is a significant rare earths mining operation in Western Australia. The project is transitioning from diesel to a hybrid gas and renewable energy solution to reduce greenhouse gas emissions and lower power costs.

Renewable Integration

The project integrates 7 MW of solar, 24 MW of wind, and a 12 MW/12 MWh BESS, enabling “Engine Off” capabilities. The goal is to cover up to 70% of the project’s energy needs with renewable energy by 2026, reducing its reliance on diesel and lowering emissions.

How Zenith is Leading the Sector

Zenith Energy is spearheading the renewable transition at Mt Weld with a 65 MW hybrid power station, featuring wind, solar, and battery storage. By overseeing the design, construction, and operation of this station, Zenith is solidifying its position as a leader in renewable energy solutions within the mining sector.

Installed capacity

  • Thermal: Gas 16.8MW, Diesel 5MW, Total 21.8MW
  • Solar: 7MW
  • Wind: 24MW, Consisting of 4 x 6MW Goldwind Turbines with a rotor Diameter of 165M, and a total height of 212M.
  • BESS: 12 MW/12 MWh Battery Energy Storage System
  • Synchronous condensers: 2 x 5MVAr Syncon.
  • ‘Engine Off’ enabled – the ability to operate on 100% renewable energy when conditions allow.
  • Renewable energy fraction: The goal is for approximately 70% of the project’s energy needs to be met by renewable energy.

Commercial operation date (COD)

  • Diesel Powerstation is already complete
  • Gas Powerstation is scheduled for Q1 CY2025.
  • Solar and BESS is scheduled for Q3 CY2025.
  • The wind farm is scheduled to commence commercial operations in Q1 2026.

Contract term

The Power Purchase Agreement (PPA) is for a 15-year term, starting from the commercial operation of the wind farm.

Client’s decarbonisation objective

Lynas Rare Earths is committed to reducing its greenhouse gas emissions by transitioning from diesel to a gas-fired hybrid renewable power station. The decommissioning of the existing diesel power plant will occur once the gas-fired station is operational. This transition aligns with Lynas’ goal of lowering emissions while also reducing the cost of power compared to a thermal-only solution.

Additional information

Zenith Energy is responsible for the design, construction, ownership, operation, and maintenance of the Mt Weld Hybrid Power Station, which will have a total installed capacity of 65 MW upon completion. Early construction works began in 2023 under Preliminary and Early Works Agreements with Lynas. This collaboration with Lynas further solidifies Zenith Energy’s leadership in the renewable energy transition within the mining sector.

Project name

Mt Weld

Location

Mt Weld, Western Australia, Australia

Client

Lynas Rare Earths

Capacity

65MW

Fuel source
BESS, Gas, Hybrid Renewable, Solar PV, Wind
CONTRACT

15-year Power Purchase Agreement (PPA)

COMMENCEMENT

Gas power station scheduled for Q1 2025, solar and BESS in Q3 2025, wind farm in Q1 2026

  • 65MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Mt Weld

    Client: Lynas Rare Earths • Capacity: 65MW

  • 90.1 MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Bellevue Gold

    Client: Bellevue Gold • Capacity: 90.1 MW hybrid power station that combines solar, wind, and battery energy storage with thermal generation.

  • 15.4 MW

    Gas

    Dalgaranga

    Client: Gascoyne Resources Ltd • Capacity: 15.4 MW gas fired power station

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Case Studies

Kathleen Valley

Kathleen Valley

The project features 17 MW of solar, 30 MW of wind, and a 17 MW/20 MWh BESS, which enable “Engine Off” capabilities. The hybrid system is designed to meet up to 80% of the project’s energy needs through renewable energy in the near future, significantly reducing the mine’s carbon footprint.

Project Background

The Kathleen Valley Project is a lithium mining operation led by Liontown Resources. The project focuses on integrating a hybrid power solution that maximises renewable energy usage to support the energy-intensive mining process, reflecting Liontown’s commitment to sustainability.

Renewable Integration

The project features 17 MW of solar, 30 MW of wind, and a 17 MW/20 MWh BESS, which enable “Engine Off” capabilities. The hybrid system is designed to meet up to 80% of the project’s energy needs through renewable energy in the near future, significantly reducing the mine’s carbon footprint.

How Zenith is Leading the Sector

Zenith Energy has developed Australia’s largest operating off-grid hybrid power system for this project, combining renewable energy sources with thermal generation. This solution not only demonstrates Zenith’s leadership in integrating renewables in remote mining operations but also aligns with Australia’s energy transition goals.

Installed capacity

  • Thermal: Gas – 26.4MW, Diesel 5MW, Total 31.4MW
  • LNG Storage and Regasification Facility
  • Solar: 17.1MW
  • Wind: 30MW, Consisting of 5 x 6MW Goldwind Turbines with a rotor Diameter of 165M, and a total height of 212M.
  • BESS: Battery Energy Storage System of 17.2MW/20 MWh
  • Synchronous condensers: 3 x 2.8MVAr Syncons.
  • ‘Engine Off’ enabled – the ability to operate on 100% renewable energy when conditions allow.

Renewable energy fraction

The goal is for approximately 80% of the project’s energy needs to be met by renewable energy.

Commercial operation date (COD)

The hybrid power plant was officially inaugurated on 9th October 2024 but has been operating since early 2024.

Contract term

Long-term Power Purchase Agreement (PPA) 15 years.

Client’s decarbonisation objective

Liontown Resources aims to minimise its carbon footprint by using renewable energy in its mining operations.

Additional information

The Kathleen Valley Project, integrates a hybrid power solution that is the largest operating off-grid hybrid power system in Australia. It includes solar, wind, and battery energy storage alongside thermal generation. This solution supports Liontown Resources’ commitment to sustainability and its goal of reducing carbon emissions in line with Australia’s energy transition efforts.

Project name

Kathleen Valley

Location

Kathleen Valley, Western Australia, Australia

Client

Liontown Resources

Capacity

95.7 MW (Hybrid System: 27 MW Gas, 5 MW Diesel, 17 MW Solar, 30 MW Wind, 17 MW/20 MWh BESS)

Fuel source
BESS, Gas, Hybrid Renewable, Solar PV, Wind
CONTRACT

15-year Power Purchase Agreement (PPA)

COMMENCEMENT

Inaugurated on 9th October 2024, operational since early 2024

  • 65MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Mt Weld

    Client: Lynas Rare Earths • Capacity: 65MW

  • 90.1 MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Bellevue Gold

    Client: Bellevue Gold • Capacity: 90.1 MW hybrid power station that combines solar, wind, and battery energy storage with thermal generation.

  • 15.4 MW

    Gas

    Dalgaranga

    Client: Gascoyne Resources Ltd • Capacity: 15.4 MW gas fired power station

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Case Studies

Bellevue Gold

Bellevue Gold

The project includes 27 MW of solar, 24 MW of wind, and a 15 MW / 30 MWh Battery Energy Storage System (BESS), enabling “engine off” operations. This setup allows the project to run entirely on renewable energy during favourable conditions, meeting well over 80% of its power demand through renewable energy.

Project Background

The Bellevue Gold Project is a large-scale gold mining operation in Western Australia, aiming to lead the sector in decarbonisation. The project includes a hybrid power station that integrates renewable energy sources alongside traditional thermal generation to achieve significant reductions in greenhouse gas emissions.

Renewable Integration

The project includes 27 MW of solar, 24 MW of wind, and a 15 MW / 30 MWh Battery Energy Storage System (BESS), enabling “engine off” operations. This setup allows the project to run entirely on renewable energy during favourable conditions, meeting well over 80% of its power demand through renewable energy.

How Zenith is Leading the Sector

Zenith Energy is setting the standard by operating a 90 MW hybrid power station that combines solar, wind, and battery energy storage with thermal generation. This innovative approach supports Bellevue Gold’s goal of becoming the world’s first net zero (Scope 1 and Scope 2) emission gold mine, and by being Australia’s most renewably powered mine. The collaboration with Tjiwarl Contracting Services also highlights Zenith’s commitment to Indigenous engagement.

Installed capacity

  • Wind: 24 MW, consisting of four GW165/6.0MW Goldwind turbines with a total height of 212M.
  • Solar: 27 MW
  • BESS: 15 MW / 30 MWh
  • Thermal: Gas – 15 MW, Diesel 9 MW, Total 24 MW
  • BESS: Battery Energy Storage System of 15 MW/33 MWh
  • LNG Storage and Regasification Facility
  • Synchronous condensers: 1 x 5MVAr synchroniser condenser.

Renewable energy fraction

The goal is for approximately 80% of the project’s energy needs to be met by renewable energy, which is performing well.

Commercial operation date (COD)

May 2024.

Contract term

Power Purchase Agreement (PPA) for an initial term of 15 years.

Client’s decarbonisation objective

To significantly reduce greenhouse gas (GHG) emissions by primarily operating on renewable energy. Bellevue Gold aims to become the world’s first net zero (Scope 1 and Scope 2) emission gold mine by utilising high levels of renewable energy and considering other emission reduction measures and the voluntary use of high-quality Australian Carbon Credit Units (ACCUs) for the residual hard-to-abate emissions.

Additional information

Zenith Energy and Bellevue Gold have partnered to establish an innovative 90 MW hybrid power station for the Bellevue Gold Project. The hybrid power station consists of wind and solar generation, thermal generation, and battery storage, enabling the project to operate on 100% renewable energy during periods of high renewable generation. This partnership also advances the Tjiwarl Katu Power Joint Venture between Zenith Energy and Tjiwarl Contracting Services, which represents the Tjiwarl Aboriginal Corporation, who are the Traditional Owners of the land where the Bellevue Gold Project is located.

Project name

Bellevue Gold

Location

Western Australia, Australia

Client

Bellevue Gold

Capacity

90 MW hybrid power station that combines solar, wind, and battery energy storage with thermal generation.

Fuel source
BESS, Gas, Hybrid Renewable, Solar PV, Wind
CONTRACT

15-year Power Purchase Agreement (PPA)

COMMENCEMENT

Commercial operation date (COD) May 2024

  • 65MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Mt Weld

    Client: Lynas Rare Earths • Capacity: 65MW

  • 90.1 MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Bellevue Gold

    Client: Bellevue Gold • Capacity: 90.1 MW hybrid power station that combines solar, wind, and battery energy storage with thermal generation.

  • 15.4 MW

    Gas

    Dalgaranga

    Client: Gascoyne Resources Ltd • Capacity: 15.4 MW gas fired power station

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Case Studies

Jundee

Jundee

Northern Star Resources’ Jundee mine is an underground mining operation located in the Northern Goldfields region of Western Australia approximately 45 kms north-east of Wiluna and approximately 520 kms north of Kalgoorlie.

Project Background

Northern Star Resources’ Jundee mine is an underground mining operation located in the Northern Goldfields region of Western Australia approximately 45 kms north-east of Wiluna and approximately 520 kms north of Kalgoorlie.

Northern Star Resources is an ASX listed, global–scale Australian gold producer with world class projects within Australia and North America. The company owns and operates three world class gold production centres in Kalgoorlie, Yandal and Pogo (Jundee, 2022).

Zenith commenced work on the power station in 2016.

Renewable Integration

The project incorporates 17 MW of solar, 24 MW of wind, a 12 MW/12 MWh BESS and 46.6 MW of gas fuelled generators. This hybrid system is expected to meet 56% of the project’s energy needs through renewable sources, significantly cutting emissions.

How Zenith is Leading the Sector

Zenith Energy’s renewable energy Power Purchase Agreement (PPA) with Northern Star Resources at Jundee supports the transition to a lower-carbon energy system. Zenith’s innovative renewable energy retrofit has positioned the company as a key player in reducing carbon intensity across the mining sector, further advancing their net-zero milestones.

Installed capacity

  • Thermal: 46.6 MW
  • Solar:17 MW
  • Wind: 24MW, Consisting of 4 x 6MW Goldwind Turbines with a rotor Diameter of 165M, and a total height of 212M.
  • BESS: 12 MW/12 MWh Battery Energy Storage System
  • Synchronous condensers: No Syncons Installed
  • Renewable energy fraction: The goal is for approximately 55% of the project’s energy needs to be met by renewable energy.

Commercial operation date (COD)

The Original Jundee power station began operations in 2016, with the first hybrid components commissioned in early 2024.

Contract term

Long-term Power Purchase Agreement (PPA) under a Build, Own, operate (BOO) model, recently extended until 2039.

Client’s decarbonisation objective

Northern Star Resources aims to significantly reduce its carbon emissions by incorporating renewable energy sources into the Jundee mine operation. With the addition of wind, solar, and battery storage, the Jundee site will cover 56% of its energy needs with renewable sources. This aligns with Zenith Energy’s goal to reduce its carbon intensity by 20% by 2025, from a 2020 baseline, which includes scope 1, 2, and 3 emissions.

Additional information

Zenith Energy has signed a renewable energy Power Purchase Agreement with Northern Star Resources for the Jundee operation. This PPA will support Zenith Energy’s interim net zero milestones and strengthen its relationship with Northern Star, with the renewable energy retrofit expected to significantly cut carbon emissions and increase the use of renewables at the mine.

Project name

Jundee

Location

Northern Goldfields, WA

Client

NSR

Capacity

89 MW

Fuel source
BESS, Diesel, Gas, Solar PV, Wind
  • 65MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Mt Weld

    Client: Lynas Rare Earths • Capacity: 65MW

  • 90.1 MW

    BESS, Gas, Hybrid Renewable, Solar PV, Wind

    Bellevue Gold

    Client: Bellevue Gold • Capacity: 90.1 MW hybrid power station that combines solar, wind, and battery energy storage with thermal generation.

  • 15.4 MW

    Gas

    Dalgaranga

    Client: Gascoyne Resources Ltd • Capacity: 15.4 MW gas fired power station