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Australian Solar Statistics & Industry Data

Australia leads the world in rooftop solar adoption with 41% of homes now powered by solar. Explore the latest installation numbers, state-by-state data, battery adoption rates, and industry trends.

updateLast updated: January 2026 • Data from 2,809 postcodes

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4.3M+

Solar Installations

Source: Clean Energy Regulator

home

41%

Household Penetration

Source: CER / ABS Census

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27.8 GW

Rooftop Capacity

Source: Clean Energy Regulator

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6.5 kW

Avg System Size

Source: Clean Energy Regulator

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271,000+

Home Batteries

Source: Clean Energy Regulator

Rooftop Solar Adoption

Australia has the highest rate of rooftop solar adoption in the world. The average system size has grown to 6.5kW as panel prices have dropped and homeowners seek to maximise their investment.

trending_upLast 12 Months

203K+

New installations

straightenAverage System Size

6.5 kW

Up from 6.8kW in 2020

homeTotal Dwellings

10.3M

In CER/ABS dataset

publicGlobal Ranking

World leader in rooftop solar per capita

Historical Installation Milestones

2010

100K

First 100,000

2017

2 million milestone

2021

3 million milestone

2026

4.3M

Current total

State-by-State Solar Data

Solar adoption varies significantly across Australia. South Australia leads in household penetration while Queensland dominates in total installations.

State	Installations	Capacity	Household Penetration	Highlight
QLD Most installations	1.2M+	7.5 GW	56%	Most installations
NSW Highest capacity	1.1M+	7.8 GW	35%	Highest capacity
VIC Strong growth	849K+	5.5 GW	32%	Strong growth
WA Strong growth	554K+	3.1 GW	51%	Strong growth
SA Highest penetration	442K+	2.8 GW	57%	Highest penetration
ACT Policy leader	64K+	0.5 GW	36%	Policy leader
TAS Growing market	64K+	0.4 GW	26%	Growing market
NT Highest sun hours	25K+	0.2 GW	31%	Highest sun hours

Source: Clean Energy Regulator postcode data (2,809 postcodes), ABS Census 2021. Last updated: January 2026.

boltBattery Revolution

Battery Storage Boom

The federal Cheaper Home Batteries rebate program launched in July 2025 has supercharged battery adoption. Over 165,000 batteries were installed in the first 6 months alone.

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530%

Increase since July 2025 rebate

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165,979

Batteries installed in 6 months post-rebate

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271,000+

Cumulative battery installations

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28.4%

Of new solar installs include battery

Explore Battery Optionsarrow_forward

Federal Battery Rebate Impact

Pre-rebate (June 2025)~8,000/month

Post-rebate (Dec 2025)~50,000/month

The ~$300/kWh rebate (approximately 30% of battery cost) has made batteries economically viable for most households. Source: Clean Energy Regulator, Solar Calculator.

Financial Returns

Solar remains one of the best household investments in Australia with typical payback periods of 3-4 years and ongoing savings for 20+ years.

savings

Average Savings (Solar)

$1,500/year

Based on 6.5kW system with 30% self-consumption

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With Battery

$2,500-$3,000/year

80-90% self-consumption with 10kWh battery

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Typical Payback

3-4 years

For solar system after rebates

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Current STC Rebate

~$1,600

For 6.6kW system (varies by location)

Return on Investment

A typical 6.6kW solar system costs $5,500-$8,000 after the federal STC rebate. With annual savings of $1,500+, most systems pay for themselves within 3-4 years and continue generating free electricity for 20-25 years.

check_circle25-year panel warranties standard
check_circle10-15 year inverter warranties
check_circleIncreases property value by 3-4%

Lifetime Savings (25 years)

$30,000+

After system cost

2030 Outlook

Australia is on track to exceed its renewable energy targets with rooftop solar playing a central role in the energy transition.

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Rooftop Target

2030 projection

36 GW

Currently at 27.8 GW (77% of target)

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Renewable Target

National goal

82%

Of electricity from renewables by 2030

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2050 Projection

Long-term forecast

53-71 GW

Rooftop solar capacity projected by 2050

Key Trends Shaping the Future

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Battery Integration

Expected 50%+ of new solar installations to include batteries by 2028

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EV Charging

Solar + EV combinations creating virtual fuel independence

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Virtual Power Plants

Aggregated home batteries becoming significant grid resource

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Smart Grids

Two-way energy flow enabling better grid management

Frequently Asked Questions

helpWhat percentage of Australian homes have solar?

Approximately 41% of Australian homes now have rooftop solar installed, making Australia the world leader in household solar adoption. This equates to over 4.3M+ installations nationwide. South Australia leads with approximately 57% household penetration.

helpHow much does the average solar system save?

The average Australian household with solar saves approximately $1,500 per year on electricity bills. With a battery system, savings can increase to $2,500-$3,000+ per year depending on usage patterns and electricity rates. Most systems pay for themselves in 3-4 years.

helpWhat is the solar rebate worth in 2026?

The federal solar rebate (Small-scale Technology Certificates or STCs) is worth approximately $1,600 for a typical 6.6kW system in 2026, depending on your location and the current STC spot price. The battery rebate provides approximately $300/kWh, or around $3,000-$4,000 for a 10-13kWh battery before the May 2026 tier changes.