Updated November 2026·Independently researched·11 min read
Commercial solar in Adelaide runs $22,000–$33,000
for a 30 kW system installed, after STCs, GST included - other sizes and site works below
A Adelaide business pays $22,000–$33,000 for a 30 kW commercial solar system installed after STCs, with $27,000 typical. A Wingfield wholesaler sizing up to 100 kW is looking at $70,000–$110,000; a Norwood cafe at 10 kW is looking at $8,000–$12,000.
-0.9%Commercial Solar costs in Adelaide are down around 0.9% over the past year, re-verified against 90+ sources in November 2026.Year on year
Typical 30 kW commercial system in Adelaide
$27,000
30 kW installed after STCs, Adelaide 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
Adelaide commercial solar is quoted by the kilowatt: $8,000–$12,000 for a 10 kW system on a small shop or office, $15,000–$26,000 for 20 kW, $22,000–$33,000 for 30 kW, $35,000–$55,000 for 50 kW and $70,000–$110,000 for 100 kW, installed after STCs. Per watt that is $0.70–$1.20, and the long sheds at Edinburgh Parks and Wingfield sit at the cheap end.
The building then shapes the Adelaide quote. Tilt frames on a North Terrace or King William Street tower need a structural engineering report at $800–$2,000, crane or cherry picker hire at $1,000–$3,000 a day and a dock booking; a flat Colorbond roof on a Lonsdale or Pooraka unit takes the same panels with a hoist. Bluestone shopfronts on The Parade and old workshops in Port Adelaide add a switchboard upgrade at $1,500–$5,000 when the board cannot take an inverter.
Anything over 30 kW may carry network upgrade or connection works at $2,000–$10,000, and commercial panel cleaning once the system is running costs $5–$15 a panel. All prices include GST.
Quick answerCommercial solar in Adelaide 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 Adelaide quotes →
Commercial Solar Prices in Adelaide 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 Adelaide? Get a quote from a local commercial contractor - free, no obligation.
Prices include GST. Adelaide metro, November 2026.
What does a 30 kW commercial solar system cost in Adelaide?$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 Adelaide 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 — Adelaide
Three Adelaide jobs priced from the rows above: an Edinburgh Parks manufacturer, a Tonsley office tenancy and a Virginia market garden. Each line names its row; the quote you get prices your roof, board and connection.
Edinburgh Parks manufacturer. A components maker at Edinburgh Parks fits 100 kW to a wide factory roof at $70,000–$110,000, with $88,000 typical. Over 30 kW, the network upgrade or connection works are quoted separately at $2,000–$10,000, and a crane at $1,000–$3,000 a day lands the panel pallets.
Tonsley office tenancy. A tenant in a two-storey Tonsley building installs 30 kW on tilt frames at $22,000–$33,000. The landlord asks for a structural engineering report at $800–$2,000 before the frames go on, and the shared switchboard is upgraded at $1,500–$5,000 so the inverter can be connected.
Virginia market garden upkeep. A grower at Virginia runs a 20 kW array installed at $15,000–$26,000 over the packing shed and books commercial panel cleaning at $5–$15 a panel each autumn, after the northern-plains dust of summer has settled on the glass.
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Prices include GST. Adelaide metro, November 2026.
Commercial Solar Costs by Sector in Adelaide
Adelaide commercial solar takes in the northern industrial strip at Wingfield, Regency Park, Pooraka and Edinburgh Parks, the southern units at Lonsdale and Tonsley, Port Adelaide's warehouses, CBD and North Terrace towers, retail on The Parade, Rundle Street and Jetty Road, and the growers and wineries of Virginia, McLaren Vale, the Barossa and the Adelaide Hills.
Wingfield, Regency Park and Edinburgh Parks sheds - Wholesale and manufacturing roofs in the north take 100 kW arrays at $70,000–$110,000, the size at which the installed cost per watt is nearest the $0.70 floor of $0.70–$1.20.
Lonsdale and Tonsley units - Workshops and factory units in the south buy 30 kW to 50 kW at $22,000–$33,000 to $35,000–$55,000; over 30 kW they carry network upgrade or connection works at $2,000–$10,000.
CBD and North Terrace 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.
The Parade, Rundle Street and Glenelg retail - A cafe, bar or shop fits a 10 kW system at $8,000–$12,000; the bluestone shopfronts of Norwood and the older Jetty Road strip at Glenelg are where a switchboard upgrade at $1,500–$5,000 joins the quote.
Virginia, McLaren Vale and Barossa growers - Packing sheds, coolrooms and cellar doors 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 vintage and the dusty months.
What a Compliant Commercial Solar Quote Includes — Cost in Adelaide
Before comparing Adelaide 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 Adelaide: northern sheds, city towers and vineyard roofs
For a Adelaide small business the entry point is $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. Manufacturers and wholesalers buy 50 kW at $35,000–$55,000 and 100 kW at $70,000–$110,000, and those arrays are what push the installed cost per watt to the bottom of $0.70–$1.20.
The roof writes the rest of a Adelaide quote. New sheds at Edinburgh Parks and Direk have clean metal decks and modern boards, so the quote stays near the system price. Towers along North Terrace and King William Street put panels on tilt frames over concrete, bringing a structural engineering report at $800–$2,000, crane or cherry picker hire at $1,000–$3,000 a day and a dock booking. Port Adelaide's old warehouses and the bluestone shopfronts of Norwood and Unley 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 Adelaide 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 Adelaide
Quick answerAdelaide pricing steps by kilowatts: a Norwood cafe or Glenelg shop sits in the $8,000–$12,000 10 kW bracket, a Tonsley workshop or McLaren Vale cellar door at 20 kW to 30 kW pays $15,000–$26,000 to $22,000–$33,000, and a Wingfield or Edinburgh Parks shed at 50 kW to 100 kW pays $35,000–$55,000 to $70,000–$110,000.
More panels on a Adelaide roof mean a lower per-watt price, $0.70–$1.20 across the range with the 100 kW northern sheds at the bottom. The fixed items stay where they are: a structural engineering report at $800–$2,000 costs about the same at 20 kW or 50 kW, and a switchboard upgrade at $1,500–$5,000 turns on the board's age, not the array's size.
Access is the other variable on a Adelaide job of any size. CBD towers need crane or cherry picker hire at $1,000–$3,000 a day plus dock and lift slots; coastal sites at Glenelg, Semaphore and Port Adelaide need fixings rated for salt air. 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 Adelaide
What is the price of commercial solar in Adelaide?
From our Adelaide 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 Adelaide?
A 30 kW commercial solar system in Adelaide costs $22,000–$33,000 installed after STCs, with $27,000 typical. A North Terrace 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 Virginia packing shed on a metal roof usually needs neither.
What does a 100 kW commercial solar system cost in Adelaide?
Going by our Adelaide table, expect $70,000–$110,000 for a 100 kW commercial system installed after STCs; the typical price is $88,000. Wingfield, Regency Park and Edinburgh Parks sheds are the usual Adelaide 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 Adelaide?
$0.70–$1.20 per watt installed after STCs on our Adelaide 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 Adelaide 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 Port Adelaide's old warehouses and the bluestone shopfronts of Norwood and Unley. 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 Adelaide need a structural engineering report?
A structural engineering report costs $800–$2,000 on our Adelaide table, typically $1,200. Owners of CBD and North Terrace towers usually ask for one before tilt frames go onto a concrete roof; a single-storey metal unit at Lonsdale rarely needs it.
What does commercial solar panel cleaning cost in Adelaide?
Commercial panel cleaning in Adelaide costs $5–$15 a panel, with $10 a panel typical. Coastal sites at Glenelg and Semaphore, and Virginia and Barossa growers after the dusty months, book it more often; have the quote price it per visit.
Do Adelaide 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. Ask for the accreditation number on your Adelaide quote and check the panel and inverter models against the listed products.