Updated November 2026·Independently researched·11 min read
Commercial solar in Brisbane runs $22,000–$33,000
for a 30 kW system installed, after STCs, GST included - other sizes and site works below
Brisbane businesses pay $22,000–$33,000 for a 30 kW commercial solar system installed after STCs, with $27,000 typical. An Eagle Farm freight depot going to 100 kW is looking at $70,000–$110,000, while a West End cafe at 10 kW is looking at $8,000–$12,000.
-1.3%Commercial Solar costs in Brisbane are down around 1.3% over the past year, re-verified against 90+ sources in November 2026.Year on year
Typical 30 kW commercial system in Brisbane
$27,000
30 kW installed after STCs, Brisbane 2026, GST included
30 kW commercial system
$22,000-$33,000
50 kW commercial system
$35,000-$55,000
100 kW commercial system
$70,000-$110,000
$22,000$27,000$33,000
Brisbane commercial solar is sold by the kilowatt. The 10 kW system a small shop or office takes is $8,000–$12,000 installed after STCs; 20 kW is $15,000–$26,000, 30 kW $22,000–$33,000, 50 kW $35,000–$55,000 and 100 kW $70,000–$110,000. Per watt the installed price runs $0.70–$1.20, and the long sheds at Yatala and Wacol are the ones that reach the bottom of that range.
Site works are where Brisbane quotes drift apart. A tilt-frame array on a Queen Street or Fortitude Valley tower roof needs a structural engineering report at $800–$2,000, plus crane or cherry picker hire at $1,000–$3,000 a day and dock bookings. Older timber shopfronts in Paddington and the Valley, and 1970s workshops at Rocklea and Acacia Ridge, often need a switchboard upgrade at $1,500–$5,000 before the inverter is allowed on.
Over 30 kW, network upgrade or connection works at $2,000–$10,000 may be added, and commercial panel cleaning after the install costs $5–$15 a panel. Every figure includes GST.
Quick answerCommercial solar in Brisbane runs $22,000–$33,000 for a 30 kW system in 2026, with roof type, switchboard condition and network connection works setting the total. All figures on this page include GST. Get free Brisbane quotes →
Commercial Solar Prices in Brisbane 2026: Cost Table and Price List
Service
Low
Typical
High
10 kW commercial system (small shop / office)
$8,000installed
$10,000
$12,000
20 kW commercial system
$15,000installed
$20,000
$26,000
30 kW commercial system
$22,000installed
$27,000
$33,000
50 kW commercial system
$35,000installed
$44,000
$55,000
100 kW commercial system
$70,000installed
$88,000
$110,000
Installed cost per watt, commercial (after STCs)
$0.70per W
$0.90
$1.20
Structural engineering report
$800report
$1,200
$2,000
Switchboard upgrade for a commercial system
$1,500per job
$3,000
$5,000
Network upgrade / connection works (systems over 30 kW)
$2,000per job
$5,000
$10,000
Crane or cherry picker hire
$1,000per day
$2,000
$3,000
Commercial panel cleaning
$5per panel
$10
$15
Scoping commercial solar work in Brisbane? Get a quote from a local commercial contractor - free, no obligation.
Prices include GST. Brisbane metro, November 2026.
What does a 30 kW commercial solar system cost in Brisbane?$22,000–$33,000 installed after STCs, $27,000 typical. The next sizes: $35,000–$55,000 for 50 kW and $70,000–$110,000 for 100 kW.
What site works get added to a Brisbane commercial solar quote?A structural engineering report at $800–$2,000, a switchboard upgrade at $1,500–$5,000 where the board is old, network upgrade or connection works at $2,000–$10,000 on systems over 30 kW, and crane or cherry picker hire at $1,000–$3,000 a day for tower and tilt-frame roofs.
Worked Commercial Solar Cost Scenarios — Brisbane
Three Brisbane examples priced from the rows above: a Yatala distribution centre, a Milton office building and a Redland Bay nursery. Each line names its row; the quote you receive prices your own roof, switchboard and connection.
Yatala distribution centre. A food wholesaler in Yatala puts 100 kW on a wide north-facing shed roof at $70,000–$110,000, with $88,000 typical. The system is well over 30 kW, so network upgrade or connection works are quoted separately at $2,000–$10,000, and a crane at $1,000–$3,000 a day lifts the panels.
Milton office building. An owner of a four-storey Milton office installs 30 kW on tilt frames at $22,000–$33,000. The concrete roof slab gets a structural engineering report at $800–$2,000 first, and the base-building switchboard is upgraded at $1,500–$5,000 to take the inverter.
Redland Bay nursery upkeep. A wholesale nursery at Redland Bay runs a 20 kW system installed at $15,000–$26,000 over the packing shed and books commercial panel cleaning at $5–$15 a panel after the dry-season dust and the summer storms have each had their turn.
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Prices include GST. Brisbane metro, November 2026.
Commercial Solar Costs by Sector in Brisbane
Brisbane commercial solar covers the Australia TradeCoast sheds at Eagle Farm and Pinkenba, the southern industrial belt from Rocklea and Acacia Ridge to Wacol and Yatala, CBD and Fortitude Valley towers, the Milton and Spring Hill office strips, retail in West End, Paddington and Chermside, and the farms and nurseries of the Redlands, Samford and the Lockyer Valley.
TradeCoast and Yatala sheds - Freight and food-distribution roofs at Eagle Farm, Pinkenba and Yatala take 100 kW arrays at $70,000–$110,000, the size at which the per-watt price sits closest to $0.70.
Rocklea to Wacol manufacturing - Three-phase factories buy 50 kW to 100 kW at $35,000–$55,000 to $70,000–$110,000; being over 30 kW, they carry network upgrade or connection works at $2,000–$10,000 on the quote.
CBD, Valley and Milton towers - Tilt frames on concrete roofs need a structural engineering report at $800–$2,000 and crane or cherry picker hire at $1,000–$3,000 a day, on top of a 20 kW or 30 kW system at $15,000–$26,000 or $22,000–$33,000.
West End, Paddington and Chermside retail - A cafe or shop fits a 10 kW system at $8,000–$12,000; the old timber shopfronts in West End and Paddington are where a switchboard upgrade at $1,500–$5,000 most often joins the quote.
Redlands, Samford and Lockyer farms - Packing sheds and coolrooms run 30 kW to 50 kW at $22,000–$33,000 to $35,000–$55,000, with commercial panel cleaning at $5–$15 a panel after each dusty stretch.
What a Compliant Commercial Solar Quote Includes — Cost in Brisbane
Before comparing Brisbane quotes, check each one prices the same kilowatts and the same panel and inverter brands, states how the installer gets panels and people onto the roof, and shows site works, certificates and GST on their own lines.
System size in kW, panel count, panel and inverter make and model, and whether the inverter is single or three phase
The STC assignment shown as a separate line, so the installed price after STCs and the price before it are both visible
A structural engineering report, priced at $800–$2,000, listed as included or excluded
Switchboard upgrade work, at $1,500–$5,000 where needed, shown as its own line
For systems over 30 kW, network upgrade or connection works at $2,000–$10,000 and who lodges the network application
Crane or cherry picker hire at $1,000–$3,000 a day, and any lift, dock or after-hours access charges for towers
Commercial panel cleaning at $5–$15 a panel if a maintenance visit is bundled, priced per visit
Install, site works and any monitoring or maintenance each on its own line, on a single GST basis
The installer's accreditation number and proof of insurance
Commercial solar cost in Brisbane: TradeCoast sheds, Valley towers and farm roofs
A Brisbane small business starts at $8,000–$12,000 for a 10 kW system installed after STCs (typically $10,000), then $15,000–$26,000 for 20 kW and $22,000–$33,000 for 30 kW. Distribution and manufacturing sites take 50 kW at $35,000–$55,000 and 100 kW at $70,000–$110,000, and that is where the installed cost per watt of $0.70–$1.20 reaches its floor.
Roof and switchboard then decide the rest of the Brisbane quote. New sheds at Yatala and on the TradeCoast have clean metal roofs and modern boards, so the quote is close to the system price. Towers in the CBD, Fortitude Valley and Milton put panels on tilt frames over concrete, which brings a structural engineering report at $800–$2,000, crane or cherry picker hire at $1,000–$3,000 a day and a dock booking. Queenslander-era shopfronts in Paddington and West End, and the 1970s workshops around Rocklea, are where a switchboard upgrade at $1,500–$5,000 is most often needed.
The Clean Energy Regulator says eligibility for solar PV systems under the Small-scale Renewable Energy Scheme has been expanded from 100 kW to 1 MW for eligible systems installed from 1 October 2026, with a fixed 5-year deeming period for 100 kW to 1 MW systems, and that STC applications for those mid-scale systems will not open until mid to late November 2026. Existing arrangements for systems smaller than 100 kW are not affected. On a Brisbane quote look for the STC line on its own, the name of whoever lodges the network application on a system over 30 kW, where $2,000–$10,000 of connection works can apply, and commercial panel cleaning at $5–$15 a panel priced per visit.
Commercial solar cost by system size in Brisbane
Quick answerBrisbane pricing climbs by kilowatts: a West End cafe or Chermside shop sits in the $8,000–$12,000 10 kW bracket, a Milton office floor or Samford packing shed at 20 kW to 30 kW pays $15,000–$26,000 to $22,000–$33,000, and an Eagle Farm or Yatala shed at 50 kW to 100 kW pays $35,000–$55,000 to $70,000–$110,000.
As a Brisbane array grows the installed cost per watt falls, from the top of $0.70–$1.20 on a 10 kW shop system to the bottom on a 100 kW Yatala shed. The fixed items stay put: a structural engineering report at $800–$2,000 costs much the same at 20 kW or 50 kW, and a switchboard upgrade at $1,500–$5,000 is driven by the board's age rather than the array's size.
Getting panels and people onto a Brisbane roof is the other variable at any size. CBD and Valley towers need crane or cherry picker hire at $1,000–$3,000 a day plus dock and lift slots; bayside sites at Wynnum, Manly and Redcliffe need marine-grade fixings. Over 30 kW the network upgrade or connection works line at $2,000–$10,000 appears, and commercial panel cleaning at $5–$15 a panel is the running cost at every size.
Frequently Asked Questions — Commercial Solar Cost in Brisbane
What is the price of commercial solar in Brisbane?
From our Brisbane table: $8,000–$12,000 for a 10 kW commercial system (typically $10,000); $22,000–$33,000 for a 30 kW system (typically $27,000); $70,000–$110,000 for a 100 kW system (typically $88,000), all installed after STCs.
How much does a 30 kW commercial solar system cost in Brisbane?
A 30 kW commercial solar system in Brisbane costs $22,000–$33,000 installed after STCs, with $27,000 typical. A Fortitude Valley tenancy on a tower roof adds a structural engineering report at $800–$2,000 and crane or cherry picker hire at $1,000–$3,000 a day; a Lockyer Valley packing shed on a metal roof usually needs neither.
What does a 100 kW commercial solar system cost in Brisbane?
Going by our Brisbane table, expect $70,000–$110,000 for a 100 kW commercial system installed after STCs; the typical price is $88,000. Eagle Farm, Pinkenba, Wacol and Yatala sheds are the usual Brisbane buyers, and network upgrade or connection works at $2,000–$10,000 are priced on top because the system is over 30 kW.
What is the installed cost per watt for commercial solar in Brisbane?
$0.70–$1.20 per watt installed after STCs on our Brisbane table, with $0.90 typical. The larger the array the lower the figure: a 100 kW system at $70,000–$110,000 sits near the floor, a 10 kW system at $8,000–$12,000 near the top.
Does a Brisbane business need a switchboard or network upgrade for solar?
Often one or both. A switchboard upgrade for a commercial system costs $1,500–$5,000 and is common in the old timber shopfronts of Paddington and West End and the 1970s workshops around Rocklea and Acacia Ridge. Network upgrade or connection works at $2,000–$10,000 apply to systems over 30 kW, so ask the installer to show the line and name who lodges the network application.
What changed for commercial solar systems over 100 kW?
The Clean Energy Regulator says the Renewable Energy (Electricity) Regulations 2001 have been amended to expand eligibility for solar PV systems under the Small-scale Renewable Energy Scheme from 100 kW to 1 MW, applying to eligible mid-scale systems installed from 1 October 2026, with a fixed 5-year deeming period; STC applications for mid-scale systems will not open until mid to late November 2026. Existing arrangements for systems smaller than 100 kW are not affected.
Does a commercial solar install in Brisbane need a structural engineering report?
A structural engineering report costs $800–$2,000 on our Brisbane table, typically $1,200. Owners of CBD, Fortitude Valley and Milton towers usually ask for one before tilt frames go onto a concrete roof; a single-storey metal shed at Yatala rarely needs it.
What does commercial solar panel cleaning cost in Brisbane?
Commercial panel cleaning in Brisbane costs $5–$15 a panel, with $10 a panel typical. Bayside sites at Wynnum and Redcliffe, and farms in the Lockyer Valley after the dry, book it more often; ask the quote to price it per visit.
Do Brisbane commercial solar installers need accreditation?
For mid-scale systems of 100 kW to 1 MW, the Clean Energy Regulator says the system must have its panels, batteries or inverters listed on the Clean Energy Council list of approved components and meet Solar Accreditation Australia install guidelines. Get the accreditation number on your Brisbane quote and check the panel and inverter models against the listed products.