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Commercial Solar Victoria

Victorian businesses can stack VEU certificates, federal STCs (Zone 4) and the instant asset write-off on one system. We match you with one SAA-accredited commercial installer in Melbourne or regional Victoria for a written quote.

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Why commercial solar works in Victoria

Victoria gets less sun than the northern states, but high commercial electricity rates and the VEU certificate scheme still make commercial solar a strong investment. Victorian businesses typically see a payback of 3 to 5 years.
Aerial view of a large rural warehouse with solar panels across its roof and semi-trailers at the loading dock

  1. High electricity rates

    Victorian commercial rates of 27 to 36c/kWh are among the highest in Australia. Solar replaces these costs with free energy for 25+ years.

  2. VEU certificate value

    Victoria's VEU program provides some of the most valuable state-based certificates in Australia, reducing your system cost by thousands of dollars beyond federal STCs.

  3. Summer peak demand

    Melbourne's hot summers drive high cooling demand that lines up with peak solar production. Solar directly offsets expensive peak-period electricity.

  4. Tax benefits

    Combine VEU certificates with the instant asset write-off to cut the effective cost sharply. A $50K system could save $15K+ in tax deductions alone.

Victorian commercial solar incentives and grants

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

  • Victorian Energy Upgrades (VEU)

    $2,500 to $18,000+ in certificates

    Victorian businesses earn Victorian Energy Efficiency Certificates (VEECs) through the VEU program when installing solar. These certificates are tradeable and reduce your effective system cost significantly.

  • Federal STCs (Zone 4)

    About $2,242 per 10kW

    Victoria falls in STC Zone 4. It earns fewer certificates per kilowatt than the northern states, but STCs still take a substantial amount off the upfront price of commercial systems under 100kW, a ceiling that rises to 1MW on 1 October 2026.

  • 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.

  • Commercial feed-in tariffs

    4 to 7c/kWh export rate

    Victorian businesses can export excess solar energy to the grid. Feed-in tariffs are modest, but they add some revenue and offset evening energy costs.

Commercial solar system sizes for Victoria

Pricing reflects Victorian factors including VEU certificate values, Zone 4 STCs and local installation costs. Daily output assumes Melbourne's 4.1 peak sun hours.

  • 30kW

    $26,000 to $35,000*

    Small business, retail store, cafe

    Panels
    60 to 75
    Daily output
    105kWh
    Payback
    3 to 5 years
    Annual savings
    $7,500 to $11,000/yr

  • 50kW

    $44,000 to $58,000*

    Medium warehouse, office building

    Panels
    100 to 125
    Daily output
    174kWh
    Payback
    3 to 5 years
    Annual savings
    $13,000 to $18,000/yr

  • 100kW

    $88,000 to $115,000*

    Large commercial, manufacturing

    Panels
    200 to 250
    Daily output
    348kWh
    Payback
    3 to 5 years
    Annual savings
    $25,000 to $36,000/yr

*Prices after the federal STC rebate for Victoria Zone 4. VEU certificate values provide additional savings. Actual costs vary by location, roof complexity, and electrical upgrades required.

Victorian commercial solar returns at a glance

The figures to check when you weigh up a commercial system in Victoria.
Average electricity rate
27 to 36c/kWh
Solar generation (per kW)
~3.5 kWh/day
STC zone
Zone 4
VEU certificate value (50kW)
$4,000 to $8,000
Typical payback (50kW)
3 to 5 years
10-year ROI
200 to 300%
25-year savings (50kW)
$300,000 to $450,000

Commercial solar Victoria FAQs

How much does commercial solar cost in Victoria?
Commercial solar in Victoria costs approximately $0.88 to $1.15 per watt installed after STC rebates. A 30kW system costs around $26,000 to $35,000, a 50kW system around $44,000 to $58,000, and a 100kW system around $88,000 to $115,000. VEU certificates provide additional savings on top of federal STCs.
What are Victorian Energy Upgrades (VEU) certificates?
The VEU program (formerly VEET) creates Victorian Energy Efficiency Certificates (VEECs) when businesses install energy-saving equipment including solar. These certificates have tradeable market value and are typically claimed by your installer, who passes the savings on as a discount on your system price.
What STC zone is Victoria in?
Most of Victoria, Melbourne included, is in STC Zone 4. That earns slightly fewer STCs than Zone 3, which includes Sydney, Brisbane and Perth, but Victorian businesses still receive substantial upfront discounts. For a 50kW system, this translates to approximately $11,248 in STC value applied as an upfront discount.
Is commercial solar worth it in Melbourne with less sun?
Yes. Melbourne gets around 4.1 peak sun hours a day, less than Sydney (4.5) or Brisbane (5.0), but Victoria has higher commercial electricity rates and generous VEU certificates that make up for it. Payback periods of 3 to 5 years are typical. The economics are driven more by electricity prices than by sunshine hours alone.
How long is the payback period for commercial solar in Melbourne?
Typical payback periods for commercial solar in Melbourne and greater Victoria range from 3 to 5 years depending on electricity rates, usage patterns, and system size. Businesses with high daytime energy consumption and those who can maximise self-consumption see faster payback.
Can Victorian businesses claim instant asset write-off for solar?
Yes, eligible Victorian 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 Victorian business?
The right system size depends on your energy consumption, roof space, and operating hours. Most Victorian businesses install systems between 30kW and 100kW. We analyse your electricity bills and load profile to recommend the size that maximises self-consumption and shortens the payback period.

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