Australia Renewable Energy Market Size, Share and Outlook - Growth Analysis Report and Forecast Trends (2026-2035)

How large is the Australia renewable energy market, and where is it heading?

Quick Answer

The Australia renewable energy market covers investment, generation, and deployment of electricity from solar, wind, hydro, and battery energy storage across the National Electricity Market (NEM) and WA's South West Interconnected System (SWIS). In 2024, new investment in clean energy reached a record AUD 12.7 billion per the Clean Energy Council. By end-2025, total installed renewable capacity reached ~60 GW (28.3 GW rooftop solar, 23 GW grid-scale wind and solar, 7 GW hydro). Renewables accounted for 43.7 per cent of NEM generation in 2025, with Q4 2025 recording 51 per cent for the first time. The market is supported by the Capacity Investment Scheme (40 GW target by July 2025), the AUD 20 billion Rewiring the Nation transmission programme, and the legislated 82 per cent renewable target for 2030. The renewable energy market is projected to reach AUD 45.53 billion in annual investment by 2035 at a 13.6 per cent CAGR.

Market Overview

Late in 2025, something happened in Australia's electricity grid that engineers and policymakers had been pencilling in for years but weren't entirely sure would land on schedule. Renewable sources delivered more than half of all power flowing through the NEM across the December quarter. Not in a single record-breaking hour, not on a calm autumn Sunday, but across a full three-month period. Ten years ago, renewables were handling ~14.6 per cent of east coast electricity. Getting from there to here wasn't the result of any one policy or project: it was rooftop solar spreading quietly across four million homes and businesses, wind and solar farms going up at scale, and a wave of grid-connected batteries only now starting to show what it can actually do.

The Clean Energy Regulator puts new renewable capacity added to the NEM at close to 7 GW for 2025, coming off a record 7.5 GW in 2024. Renewables covered 43.7 per cent of NEM generation across all of 2025, up from 39 per cent the year before. Total renewable output across the NEM and SWIS hit 106,656 GWh. A record 59.7 million Large-scale Generation Certificates were created, up 8.2 million on 2024. Each LGC represents real accredited generation in the Australia renewable energy market, so that jump matters.

Three things are doing the heavy lifting shaping where the renewable energy market heads. First is the federal Capacity Investment Scheme, expanded in July 2025 to a 40 GW target and expected to underpin ~AUD 73 billion in electricity sector investment between now and 2027. It works by providing revenue underwriting, unlocking financing for projects that would otherwise struggle in an environment where high renewable penetration keeps wholesale prices down. Second is Rewiring the Nation, the AUD 20 billion transmission programme financing 4,581 km of new powerlines. Third is batteries: the 1.9 GW and 4.9 GWh of utility-scale storage commissioned in 2025 alone exceeded everything built across the eight years before combined. The pipeline has grown from 3 GW in 2022 to 26 GW by end-2025.

Key Market Trends and Insights

• 51% renewable electricity in the NEM has been crossed: In Q4 2025, renewables supplied 51 per cent of all NEM electricity. Both AEMO's Quarterly Energy Dynamics report and the Clean Energy Regulator's Q4 QCMR confirm it. Battery discharge grew 198 per cent year-on-year in Q4, indicating newly commissioned grid-scale systems are meaningfully shifting the generation mix.
• Rooftop solar has overtaken the entire coal fleet: By end-2025, rooftop solar PV reached 28.3 GW across 4 million-plus installations. Australia's remaining coal fleet sits at 22.5 GW. CEC modelling puts cumulative rooftop solar at 37.2 GW by June 2030, running ahead of AEMO's 36 GW target.
• Batteries had a year that genuinely changes the story: The 1.9 GW and 4.9 GWh of utility-scale batteries commissioned in 2025 exceeded the combined deployment of the eight prior years. Residential batteries: 183,245 home batteries were sold in H2 2025 alone, more than the four previous years combined. Grid-scale pipeline at 26 GW by end-2025.
• Investment is up, with 2025 uneven: The 2024 record of AUD 12.7 billion gave the impression of unstoppable momentum, but the first three quarters of 2025 were quieter. A federal election in May created policy uncertainty. Q4 2025 bounced back: 2.1 GW commissioned and AUD 3.5 billion in new financial commitments in a single quarter. AEMO's NEM development pipeline: 275 projects totalling 56.6 GW.
• AEMO's Draft 2026 ISP maps the 2050 grid: Released 10 December 2025, it calls for 120 GW of grid-scale wind and solar, 32 GW of grid-scale batteries, 12 GW of pumped hydro, and 14 GW of flexible gas. Total investment under the optimal development path is AUD 128 billion in present value, with AUD 22 billion in avoided system costs for consumers.

Australia Renewable Energy Market Size and Forecast

Key Takeaways: Australia Renewable Energy Market

The NEM Has Crossed the 50% Renewable Threshold and Is Not Going Back

The 51 per cent Q4 2025 figure isn't a one-off. It reflects the cumulative effect of 28.3 GW of rooftop solar, 23 GW of grid-scale wind and solar, and the battery pipeline finally coming online at scale. The Australia renewable energy market now has the installed capacity and development pipeline to push the annual NEM share toward the legislated 82 per cent by 2030 target. The question isn't whether it happens: it's at what cost, how the transmission buildout keeps pace, and how coal retirements are sequenced. The grid has fundamentally changed character from a coal-and-gas baseload system to a renewables-plus-storage system.

The Capacity Investment Scheme and Rewiring the Nation Are the Policy Backbone

The 40 GW CIS target, expanded in July 2025, is underpinning ~AUD 73 billion in renewable energy market investment through 2027. Revenue underwriting is the mechanism: guaranteed floor prices for generation that would otherwise struggle to finance in a market where renewables push wholesale prices down. The AUD 20 billion Rewiring the Nation programme funds the 4,581 km of transmission AEMO's ISP says the grid needs before generation targets become physically achievable. Together, these two programmes represent the most significant federal intervention in the electricity sector since the original Renewable Energy Target was legislated.

Storage Deployment Has Moved From Pilot to Structural

The 1.9 GW and 4.9 GWh of utility-scale batteries commissioned in 2025 exceeded the combined deployment of the eight prior years. The development pipeline has grown from 3 GW in 2022 to 26 GW by end-2025: nearly nine-fold in three years. Residential batteries: 183,245 in H2 2025 alone, more than the four previous years combined. The Cheaper Home Batteries Programme expanded from AUD 2.3 billion to AUD 7.2 billion in December 2025 after 163,000 installations in the first five months. Storage is no longer the marginal technology in the renewable energy market: it's the structural enabler of high renewable penetration.

Key Insight

The Australia renewable energy market's transition from ~14.6 per cent renewables in the east coast grid a decade ago to 51 per cent in Q4 2025 has been faster than most serious analysts projected. The next decade's challenge is different: not whether renewables scale (they will), but whether transmission, storage, and gas firming scale quickly enough to make 82 per cent by 2030 actually achievable without reliability compromises. The AEMO Draft 2026 ISP's AUD 128 billion optimal development path is the roadmap. Whether the build happens on that schedule is the key variable.

Key Trends and Recent Developments in the Australia Renewable Energy Market

Q4 2025: 51 Per Cent Renewable NEM and 2.1 GW Commissioned

Q4 2025 was the single biggest quarter for renewable commissioning in Australia's history. 2.1 GW of wind and solar were commissioned in the quarter alone (a record), plus 1 GW of utility-scale batteries. NEM renewable share hit 51 per cent for the first three-month period ever. Battery discharge volumes grew 198 per cent year-on-year. AUD 3.5 billion in new financial commitments were signed in the quarter. The Clean Energy Regulator's Q4 2025 QCMR confirmed these figures independently of AEMO's Quarterly Energy Dynamics.

AEMO Draft 2026 Integrated System Plan, December 2025

Released 10 December 2025 for stakeholder consultation, the Draft 2026 ISP maps the optimal development path for the NEM through 2050. It calls for 120 GW of grid-scale wind and solar, 32 GW of grid-scale batteries, 12 GW of pumped hydro, and 14 GW of flexible gas. Total investment: AUD 128 billion in present value. Projected consumer savings from avoided system costs: AUD 22 billion. The ISP is updated biennially and is the authoritative planning document for NEM infrastructure investment in the renewable energy market.

Cheaper Home Batteries Programme Expansion, December 2025

The Cheaper Home Batteries Programme, launched 1 July 2025 with a 30 per cent upfront discount, was expanded from AUD 2.3 billion to AUD 7.2 billion in December 2025 after 163,000 batteries were installed in the first five months alone. Total H2 2025 residential battery installations reached 183,245, more than the four previous years combined. The programme has demonstrably pulled forward residential battery deployment and is reshaping the distributed energy resource profile of the Australia renewable energy market.

Australia Renewable Energy Market Segmentation

Market Breakup by Technology

• Solar (Rooftop + Grid-Scale): The largest and fastest-growing segment. 28.3 GW of rooftop PV across 4 million-plus installations, plus grid-scale solar in the 23 GW combined wind-and-solar tally. Rooftop solar generated 14.2 per cent of Australia's electricity in H2 2025, up from 7.2 per cent in 2020.
• Wind (Onshore + Offshore): Major growth category within the 23 GW grid-scale fleet. Offshore wind zones declared off Gippsland, Hunter, and Illawarra are expected to add significant capacity in the late 2020s. Wind faces longer project development timelines than solar.
• Battery Energy Storage: The fastest-scaling technology in the renewable energy market. Grid-scale pipeline grew from 3 GW in 2022 to 26 GW by end-2025. Residential batteries at 183,245 in H2 2025 alone. Utility-scale deployment of 1.9 GW and 4.9 GWh in 2025 exceeded the prior eight years combined.
• Hydroelectric: 7 GW of existing capacity plus 12 GW of pumped hydro targeted by 2050 (AEMO ISP). Snowy 2.0 and Tasmania's Battery of the Nation are the flagship projects.
• Transmission Infrastructure: The enabler of generation growth. Rewiring the Nation's AUD 20 billion funds 4,581 km of new powerlines. Renewable Energy Zones (REZs) in NSW, Victoria, Queensland, and WA are the geographic focus.

Market Breakup by Region

• New South Wales: Largest state by grid-scale renewable pipeline. Five Renewable Energy Zones: Central-West Orana, New England, South West, Hunter-Central Coast, and Illawarra.
• Victoria: 95 per cent renewable energy target by 2035 (legislated). Offshore wind declared in Gippsland. VNI West transmission and Western Renewables Link are key infrastructure.
• Queensland: The largest commissioned clean energy projects in Q4 2025. Fast-growing REZs in Central Queensland and Southern Queensland. Strong solar resource drives high penetration.
• South Australia: Already consistently above 70 per cent renewable. Pioneer in grid-scale batteries (Hornsdale/Tesla Big Battery). World's first fully renewable-powered grid during some hours.
• Western Australia: SWIS crossed 50 per cent renewable for the first time in 2025. Legislated coal exit by 2030 is driving accelerated renewable and storage investment.
• Tasmania: Already above 100 per cent renewable (hydro + wind). Battery of the Nation positions Tasmania as a pumped hydro hub for the mainland NEM via Marinus Link.

Competitive Landscape and Key Players in the Australia Renewable Energy Market

The Australia renewable energy market has a diverse competitive landscape spanning global renewable developers, Australian gentailers, superannuation-backed infrastructure investors, and specialist storage and transmission players. The scale of the pipeline and the CIS underwriting has attracted unprecedented institutional capital.

AGL Energy

Australia's largest electricity generator and retailer, transitioning from a coal-heavy fleet to renewables. Major investments in Liddell and Loy Yang replacement capacity. Operates the Torrens Island and Silverton Wind Farm portfolios. Key player in the coal-to-renewables transition in the renewable energy market.

Origin Energy

Now owned by Brookfield and EIG following privatisation. Major retail and generation position. Eraring coal plant retirement (Australia's largest) reshaping the NSW generation mix. Committed to renewables build-out alongside the coal exit.

Squadron Energy

Andrew Forrest-owned developer of utility-scale wind, solar, and storage. Acquired CWP Renewables. Rapidly growing portfolio of operational and pipeline assets across NSW, Victoria, and Queensland. One of the most active domestic developers.

Iberdrola Australia

Global renewable developer formerly operating as Infigen Energy. Strong wind portfolio and growing solar and battery footprint. Active participant in CIS tenders.

Neoen Australia

French-owned global renewable developer with a major Australian presence. Operates the Hornsdale Power Reserve (Tesla Big Battery) in SA: Australia's iconic grid-scale storage project. Broad portfolio of wind, solar, and battery assets.

Other significant players include EnergyAustralia, Snowy Hydro (pumped hydro and generation), Stanwell (QLD state-owned), CS Energy (QLD), Meridian Energy Australia, Acciona Energy, ENGIE, Tilt Renewables, Lightsource bp, and Edify Energy (storage specialist). Superannuation-backed investment vehicles including IFM Investors, AustralianSuper, and QIC hold significant stakes across renewable and transmission infrastructure.