The australia power market size in terms of installed base is expected to increase from 128.58 gigawatt in 2025 to 139.60 gigawatt in 2026 and reach 208.32 gigawatt by 2031, growing at a CAGR of 8.34% over 2026-2031. This report is Segmented by Power Source (Thermal, Nuclear, and Renewables) and End-User (Utilities, Commercial and Industrial, and Residential). The Market Sizes and Forecasts are Provided in Terms of Installed Capacity (GW).
Long-term emission policies continue to tilt investment toward zero-carbon technologies, yet firming requirements compel hybridization. The Australian power market size allocated to batteries is forecast to rise from 5 GW in 2026 to 27 GW by 2050, while coal capacity retires in 1-2 GW chunks as Eraring, Yallourn, and Collie exit. Hybrid solar-battery complexes like EkEnergy's Silverland project are becoming standard to manage curtailment and capture frequency control revenues. Offshore wind may add up to 10 GW post-2033, diversifying the generation mix once supply chain and transmission hurdles clear. Biomass, geothermal, and tidal remain below 1% of capacity due to limited resources and higher costs. Nuclear remains prohibited, and even if policy shifts, small modular reactors would not arrive before the late 2030s.
Australia Power Market Trends and Insights
Rapid Utility-scale Solar PV Deployment under Large-scale Renewable Energy Target (LRET)
The LRET achieved its 33,000 GWh target in 2024, yet certificate oversupply pushed prices down to AUD 25-35/MWh, prompting developers to secure 10-15 year corporate PPAs for revenue certainty. Snowy Hydro’s 1,200 MW New South Wales solar portfolio illustrates integrated gentailer hedging that combines generation with retail load. Lightsource bp and ACEN Australia both closed 400 MW solar farms in 2025 after locking in industrial off-takers, a model now standard as wholesale price volatility rises. Eku Energy’s 1,000 MW Riverland Solar project includes co-located storage to monetize energy otherwise curtailed in high-congestion zones. Falling cost curves for bifacial modules and single-axis trackers sustain sub-AUD 50/MWh levelized costs, enabling solar to out-compete new thermal projects without subsidies.Surge in Corporate PPAs from Mining & Data-Center Operators in Western Australia
BHP’s 100% renewable PPA covering Queensland coal operations from 2027 removes more than 1,000 GWh of annual grid demand and signals board-level alignment on climate targets. Fortescue is building a 2-3 GW solar-wind-battery pipeline that will commission 500-700 MW each year to reach complete Scope 1 and 2 decarbonization by 2030. Western Australia’s isolated grid expedites renewable penetration because the state solves inertia and firming challenges locally, accelerating battery roll-outs. Hyperscale data-center operators, led by Microsoft and Equinix, signed 24/7 renewable contracts totaling 526 MW in 2025, reflecting AI-driven compute demand that requires continuous power quality. ACCC’s 2025 inquiry found corporate PPA strike prices AUD 10-20/MWh below wholesale averages when contract terms exceed 15 years, transferring volume risk to developers.Transmission Bottlenecks Causing Curtailment in Queensland & NSW REZs
New South Wales produced 66% of the National Electricity Market congestion in 2024 as 7.15 GW of generation access was granted before network upgrades, forcing curtailment during high solar output. Molong Solar Farm recorded a 53.8% curtailment rate, highlighting the mismatch between 12-18 month generation builds and 3-5 year transmission timelines. Curtailment reached 33% in NSW and 27% in Victoria during spring 2024 when mild demand collided with peak renewable production. AEMO projects that 2-4 year delays could waste 214-456 TWh of renewable energy by 2040, costing up to AUD 20 billion. HumeLink, now targeting 2028-2029 after landholder disputes, extends congestion for southern NSW projects, prompting developers to add onsite batteries to time-shift output.Other drivers and restraints analyzed in the detailed report include:
- Federal “Rewiring The Nation” Funding For Super-Grid Transmission To Renewable Energy Zones
- Grid-scale Battery & Pumped-Hydro Investments Accelerated by Capacity Investment Scheme (CIS)
- Community Opposition Delaying Wind Farms & HV Interconnector Routes
Segment Analysis
Renewables held 58.2% of Australia's power market share in 2025 and are expanding at a 13.9% CAGR, adding 3-4 GW of solar and 1-2 GW of wind annually, while grid-scale batteries reach 4 GW under CIS awards. Solar PV dominates additions through Snowy Hydro's 1,200 MW portfolio and Lightsource bp's 400 MW Riverina project, both secured by long-term corporate PPAs. Wind growth concentrates in Neoen's 460 MW Goyder South Stage 2, CleanCo's 1,026 MW MacIntyre precinct, and the proposed 2,200 MW Star of the South offshore wind farm, which will broaden resource diversity if port bottlenecks are resolved. Hydro remains steady near 8 GW, with Snowy 2.0's 2,200 MW pumped-hydro and Tasmania's Battery of the Nation representing the few large additions. Gas peakers such as Kurri Kurri and Tallawarra B supply flexibility but face fuel prices averaging AUD 10-14/GJ in 2024-2025, lowering dispatchability economics compared with batteries charging at negative midday prices.Long-term emission policies continue to tilt investment toward zero-carbon technologies, yet firming requirements compel hybridization. The Australian power market size allocated to batteries is forecast to rise from 5 GW in 2026 to 27 GW by 2050, while coal capacity retires in 1-2 GW chunks as Eraring, Yallourn, and Collie exit. Hybrid solar-battery complexes like EkEnergy's Silverland project are becoming standard to manage curtailment and capture frequency control revenues. Offshore wind may add up to 10 GW post-2033, diversifying the generation mix once supply chain and transmission hurdles clear. Biomass, geothermal, and tidal remain below 1% of capacity due to limited resources and higher costs. Nuclear remains prohibited, and even if policy shifts, small modular reactors would not arrive before the late 2030s.
Complete Report Scope:
- By Power Source
- Thermal (Coal, Natural Gas, Oil and Diesel)
- Nuclear
- Renewables (Solar, Wind, Hydro, Geothermal, Biomass & Waste, Tidal)
- By End User
- Utilities
- Commercial and Industrial
- Residential
- By T&D Voltage Level (Qualitative Analysis only)
- High-Voltage Transmission (Above 230 kV)
- Sub-Transmission (69 to 161 kV)
- Medium-Voltage Distribution (13.2 to 34.5 kV)
- Low-Voltage Distribution (Up to 1 kV)
List of Companies Covered in this Report:
- AGL Energy Ltd.
- Origin Energy Ltd.
- EnergyAustralia Holdings Ltd.
- Snowy Hydro Ltd.
- Alinta Energy Pty Ltd.
- Iberdrola Australia Ltd.
- Goldwind Australia Pty Ltd.
- Neoen Australia Pty Ltd.
- TransGrid
- AusNet Services Ltd.
- CleanCo Queensland Ltd.
- Powerlink Queensland
- TasNetworks
- APA Group
- Horizon Power
- Synergy (Electricity Generation & Retail Corp.)
- Meridian Energy Australia
- ENGIE Australia & New Zealand
- Shell Energy Australia
- CS Energy Ltd.
- Lightsource bp Australia
Additional Benefits:
- The market estimate (ME) sheet in Excel format
- 3 months of analyst support
Table of Contents
1 Introduction
4 Market Landscape
5 Market Size & Growth Forecasts
6 Competitive Landscape
7 Market Opportunities & Future Outlook
Companies Mentioned (Partial List)
A selection of companies mentioned in this report includes, but is not limited to:
- AGL Energy Ltd.
- Origin Energy Ltd.
- EnergyAustralia Holdings Ltd.
- Snowy Hydro Ltd.
- Alinta Energy Pty Ltd.
- Iberdrola Australia Ltd.
- Goldwind Australia Pty Ltd.
- Neoen Australia Pty Ltd.
- TransGrid
- AusNet Services Ltd.
- CleanCo Queensland Ltd.
- Powerlink Queensland
- TasNetworks
- APA Group
- Horizon Power
- Synergy (Electricity Generation & Retail Corp.)
- Meridian Energy Australia
- ENGIE Australia & New Zealand
- Shell Energy Australia
- CS Energy Ltd.
- Lightsource bp Australia
