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Commercial Solar NSW

NSW businesses can stack the Energy Savings Scheme, federal STCs (Zone 3) and the instant asset write-off on one system. We match you with one SAA-accredited commercial installer in Sydney or regional NSW for a written quote.

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Why commercial solar works in New South Wales

NSW has some of the highest commercial electricity rates in Australia, which makes solar a strong investment. Add the Energy Savings Scheme and the Peak Demand Reduction Scheme, and a NSW business can stack several incentives on one system.
Aerial view of a large rural warehouse with solar panels across its roof and semi-trailers at the loading dock

  1. High electricity prices

    NSW commercial rates of 28 to 38c/kWh make solar highly profitable. Every kilowatt-hour you generate yourself avoids these costs for 25+ years.

  2. Strong sun

    Sydney averages 4.5 peak sun hours a day. Regional NSW gets more, 4.8 in the Hunter and 5.1 in the Central West, which lifts returns further.

  3. A large commercial sector

    NSW is Australia's largest economy, with a deep stock of warehouses, shops and office buildings. Flat commercial roofs suit solar well.

  4. Incentives that stack

    NSW businesses can combine ESS certificates, federal STCs, PDRS certificates and the instant asset write-off to cut the effective cost of going solar sharply.

NSW commercial solar incentives and grants

NSW businesses can draw on both state and federal incentives, which together take a large share off the cost of a commercial system.

  • Energy Savings Scheme (ESS)

    $2,000 to $15,000+ in certificates

    NSW businesses earn Energy Savings Certificates (ESCs) for installing solar. These certificates have tradeable value and reduce your effective system cost by thousands of dollars.

  • Federal STCs (Zone 3)

    About $2,622 per 10kW

    NSW falls in STC Zone 3, which earns Small-scale Technology Certificates on systems under 100kW, a ceiling that rises to 1MW on 1 October 2026. Your installer applies them as an upfront discount.

  • Instant asset write-off

    Full system cost deductible

    Eligible businesses can claim the full cost of a solar system as an immediate tax deduction in the year of installation, significantly reducing your taxable income.

  • Peak Demand Reduction Scheme

    Additional certificate income

    The NSW Peak Demand Reduction Scheme (PDRS) rewards businesses that reduce peak electricity demand. Solar paired with battery storage can generate additional certificates.

Commercial solar system sizes for NSW

Pricing reflects NSW factors including ESS certificate values, Zone 3 STCs and local installation costs. Daily output assumes Sydney's 4.5 peak sun hours.

  • 30kW

    $25,000 to $33,000*

    Small business, retail store, cafe

    Panels
    60 to 75
    Daily output
    115kWh
    Payback
    3 to 4 years
    Annual savings
    $8,000 to $12,000/yr

  • 50kW

    $42,000 to $55,000*

    Medium warehouse, office building

    Panels
    100 to 125
    Daily output
    191kWh
    Payback
    3 to 5 years
    Annual savings
    $14,000 to $20,000/yr

  • 100kW

    $85,000 to $110,000*

    Large commercial, manufacturing

    Panels
    200 to 250
    Daily output
    383kWh
    Payback
    3 to 4 years
    Annual savings
    $28,000 to $40,000/yr

*Prices after the federal STC rebate for NSW Zone 3. ESS certificate values provide additional savings. Actual costs vary by location, roof complexity, and electrical upgrades required.

NSW commercial solar returns at a glance

The figures to check when you weigh up a commercial system in New South Wales.
Average electricity rate
28 to 38c/kWh
Solar generation (per kW)
~3.8 kWh/day
STC zone
Zone 3
ESS certificate value (50kW)
$3,000 to $6,000
Typical payback (50kW)
3 to 4 years
10-year ROI
250 to 350%
25-year savings (50kW)
$350,000 to $500,000

Commercial solar NSW FAQs

How much does commercial solar cost in NSW?
Commercial solar in NSW costs approximately $0.85 to $1.10 per watt installed after STC rebates. A 30kW system costs around $25,000 to $33,000, a 50kW system around $42,000 to $55,000, and a 100kW system around $85,000 to $110,000. ESS certificates provide additional savings on top of federal STCs.
What is the NSW Energy Savings Scheme?
The Energy Savings Scheme (ESS) is an NSW government program that creates financial incentives for businesses to reduce electricity consumption. When you install commercial solar, you earn Energy Savings Certificates (ESCs) that have tradeable value, effectively reducing your system cost by thousands of dollars.
What is the Peak Demand Reduction Scheme?
The PDRS is a newer NSW initiative that rewards businesses for reducing peak electricity demand. Businesses with solar and battery storage can earn Peak Reduction Certificates (PRCs) by shifting load away from peak periods, providing an additional revenue stream beyond standard energy savings.
What STC zone is NSW in?
Most of NSW, Sydney included, is in STC Zone 3. For a 50kW system, this translates to approximately $13,110 in STC value, applied as an upfront discount by your installer. Systems under 100kW are eligible for STCs, and from 1 October 2026 that extends to systems up to 1MW.
How long is the payback period for commercial solar in Sydney?
Typical payback periods for commercial solar in Sydney and greater NSW range from 2.5 to 5 years depending on electricity rates, usage patterns, and system size. Businesses with high daytime energy consumption and higher electricity rates see faster payback. The combination of ESS certificates, STCs, and instant asset write-off shortens it further.
Can NSW businesses claim instant asset write-off for solar?
Yes, eligible NSW businesses can claim the full cost of a commercial solar installation as an immediate tax deduction under the instant asset write-off scheme. This can significantly reduce the effective cost of the system. Consult your accountant for eligibility based on your business structure and annual turnover.
What size commercial solar system do I need for my NSW business?
The right system size depends on your energy consumption, roof space, and business operating hours. Most NSW businesses install systems between 30kW and 100kW. A small retail shop may need 30kW, a medium warehouse 50 to 70kW, and a large commercial facility 100kW+. We analyse your electricity bills to recommend the right size.

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