One of Queensland’s largest energy infrastructure developments has taken a significant step forward after Monadelphous Group announced it had secured a major construction contract valued at approximately $380 million for the Brigalow Peaking Power Plant project near Chinchilla.

The contract, awarded by CS Energy, represents a major milestone for the 400 MW power generation project and highlights continuing investment in Queensland’s energy infrastructure as demand grows for reliable electricity supply capable of supporting both industry and the state’s evolving energy mix.

The announcement has attracted attention across engineering, construction and industrial sectors due to the scale of the project and the substantial construction activity expected over the coming years.

For contractors, suppliers and service providers throughout Queensland, the development signals another major infrastructure project entering the delivery phase.

MAJOR QUEENSLAND ENERGY PROJECT ADVANCES

The Brigalow Peaking Power Plant is being developed adjacent to CS Energy’s existing Kogan Creek Power Station near Chinchilla in Queensland’s Western Downs region.

According to CS Energy, the project will feature 12 GE Vernova LM2500XPRESS aeroderivative gas turbines and provide up to 400 MW of generation capacity.

The facility is being designed as a fast-start peaking power plant capable of rapidly supplying electricity during periods of high demand.

Unlike traditional baseload power stations, peaking plants are intended to respond quickly when additional electricity is required across the network.

CS Energy states that the facility will be capable of reaching full output within approximately five minutes.

Industry observers note that this capability is becoming increasingly important as electricity networks accommodate larger volumes of renewable generation.

WHAT MONADELPHOUS HAS BEEN AWARDED

Monadelphous announced that the contract covers Balance of Plant works associated with construction of the project.

The scope includes major infrastructure packages such as:

• civil works
• mechanical installation
• piping systems
• equipment installation
• supporting infrastructure construction
• turbine integration works

The contract is one of the largest recently announced energy infrastructure awards in Queensland and further strengthens Monadelphous’ position within Australia’s major project market.

Construction activity is expected to generate significant demand for specialist trades, equipment providers and industrial service contractors.

WHY THE PROJECT MATTERS

The Brigalow project is part of a broader effort to strengthen Queensland’s electricity system while supporting reliability during periods of peak demand.

As renewable energy generation continues expanding across the state, electricity networks require additional dispatchable generation capable of responding quickly when demand increases or renewable output fluctuates.

Projects such as Brigalow are increasingly being viewed as important supporting infrastructure within the broader energy transition.

Government agencies and industry participants continue emphasising the importance of maintaining reliability while new renewable projects are developed and connected to the grid.

The project also reinforces Queensland’s position as one of Australia’s most active regions for energy infrastructure investment.

SIGNIFICANT OPPORTUNITIES FOR CONTRACTORS

Beyond its energy market significance, the project is expected to create substantial opportunities throughout the engineering and construction supply chain.

Large infrastructure developments typically generate demand across a broad range of disciplines.

Potential beneficiaries may include:

• civil contractors
• earthmoving providers
• structural steel fabricators
• mechanical contractors
• electrical contractors
• instrumentation specialists
• equipment hire companies
• logistics providers
• accommodation operators
• engineering consultancies

The scale of the contract suggests a considerable volume of procurement and subcontracting activity will occur during the construction phase.

Many Queensland businesses are expected to monitor the project closely as delivery progresses.

ENERGY SECURITY REMAINS A KEY FOCUS

Energy security continues to be a major policy and investment theme throughout Queensland.

Growing industrial activity, population growth and increasing electricity demand are placing additional pressure on generation and transmission infrastructure.

Projects such as Brigalow are intended to improve system flexibility and help ensure reliable electricity supply during peak demand periods.

The development complements broader investment occurring across Queensland’s energy sector, including renewable generation projects, transmission infrastructure and industrial energy developments.

As these projects advance, energy infrastructure is becoming one of the state’s largest sources of engineering and construction activity.

CONSTRUCTION TIMELINE

CS Energy has indicated that major construction activity is expected to commence during the second half of 2026.

The project is currently targeting operations commencing in 2029.

Over the coming years, the development is expected to become one of Queensland’s most closely watched energy infrastructure projects.

Industry participants will be monitoring procurement activity, subcontractor opportunities and project milestones as construction progresses.

WHAT HAPPENS NEXT?

With a major construction contract now awarded, the project is moving from planning into delivery.

Attention will increasingly focus on:

• procurement activities
• construction milestones
• workforce requirements
• supply chain opportunities
• project delivery progress

For engineering, construction and industrial businesses, the Brigalow Peaking Power Plant represents one of the most significant new infrastructure opportunities currently emerging in Queensland.

As work ramps up, the project is expected to contribute substantially to regional economic activity while strengthening Queensland’s future energy infrastructure.