Sunpac Solar designs and installs commercial solar panels for Brisbane businesses, from small offices to warehouses. Our CEC-accredited team handles design, approvals, installation and commissioning.
A commercial solar system lets your business generate power during trading hours and buy less from the grid. Commercial solar power suits sites that use most of their electricity in the daytime.
Sunpac Solar provides commercial solar panel installation for offices, warehouses, retail sites and workshops across Brisbane. We size each project to your roof space, tariff and operating hours.
Projects include Tier-1 panels, inverters, STC paperwork, network approval and commissioning, completed by our CEC-accredited team.
Commercial solar energy generates electricity on your roof during the hours your business operates. It suits sites with daytime demand from lighting, cooling, machinery and equipment.
Daytime operations can use more of the solar power the roof generates.
Payback depends on usage and tariff. We estimate it for your site.
Solar equipment may qualify for depreciation. Confirm eligibility and timing with your accountant.
Generate part of your own electricity and draw less from the network.
Commercial solar panels are sized to your electricity usage, roof space and operating hours. Use the table as a starting point before your site assessment.
| System Size | Approx. Panels (440W) | Est. Daily Generation | Suits |
|---|---|---|---|
| 10kW | 23 | About 45 kWh | Small offices, cafes and shops |
| 30kW | 68 | About 135 kWh | Medium offices, workshops and small warehouses |
| 50kW | 114 | About 225 kWh | Larger warehouses and light industrial sites |
| 100kW | 227 | About 450 kWh | Industrial sites, factories and multi-building sites |
Disclaimer: Estimates are based on typical Brisbane solar conditions and approximately 440W panels. Actual output depends on panel specifications, roof orientation, shading, electricity consumption and site conditions. Final sizing is subject to a site assessment.
We provide commercial solar solutions for different sites and usage patterns. Systems are quoted after a site assessment, as price depends on size, roof and switchboard.
Panels and inverters that supply your site during the day and stay connected to the grid.
Add a battery to store surplus solar for early morning, evening or after-hours use.
A hybrid inverter manages solar generation, battery storage and site supply as one system.
Add panels or replace an inverter on an existing system to match current usage.
Choosing between commercial solar companies comes down to who does the work and who supports you. Our commercial solar installer team in Brisbane is CEC accredited.
Our CEC-accredited installers follow Australian Standards and test the system before handover.
We assess your roof, switchboard, shading and usage before recommending a system size.
Panels and inverters carry manufacturer product warranties, plus our own workmanship warranty.
Proposals list system size, products and inclusions, so you can compare quotes.
We plan installation around your trading hours to limit disruption to your business.
We help with monitoring setup, servicing and questions after installation.
EXCELLENT
Based on 64 reviews
Posted on Google![]()
Vikramjeet Singh CheemaTrustindex verifies that the original source of the review is Google.
Fantastic job done with Solar and Battery installation. Very professional team. Helped me with some other upgrades in the meter board.Posted on Google![]()
Amandeep SinghTrustindex verifies that the original source of the review is Google.
Great service with great quality of work. Thanks to Navdeep Singh (Singh electricals).Posted on Google![]()
Manpreet BirdiTrustindex verifies that the original source of the review is Google.
Great service and quality work at very reasonable pricesPosted on Google![]()
Akash KaushalTrustindex verifies that the original source of the review is Google.
Great Job and Great Team Really Happy For the job .Posted on Google![]()
Scott LedgerTrustindex verifies that the original source of the review is Google.
Awesome service and price. Less than a week from deposit to installation. Can't praise them enough.Posted on Google![]()
Sonpreet SinghTrustindex verifies that the original source of the review is Google.
Very good experiencePosted on Google![]()
Paula BurkeTrustindex verifies that the original source of the review is Google.
Sunpac Solar did my solar panels this week, I had only spoken to them just over a week ago. These guys were quick efficient and the job was great. The boss guy is very on to the job and he keeps you in the picture the whole time. I would definitely recommend them to anyone interested. Well done guys 🙏Posted on Google![]()
DimpleTrustindex verifies that the original source of the review is Google.
We had our solar system installed yesterday by Sunpac Solar Company, and we are extremely happy with the entire experience. Navdeep Singh and his team were professional, punctual, and knowledgeable throughout the process. The installation was completed efficiently and to a high standard. The team took the time to explain how everything works and answered all our questions. They were friendly, respectful, and left the work area clean and tidy when the job was finished. We are very pleased with the service and workmanship provided by Sunpac Solar Company and would highly recommend Navdeep Singh and his team to anyone considering solar for their home. Thank you for a great job!Posted on Google![]()
Harold CoventryTrustindex verifies that the original source of the review is Google.
It's quick and efficient good work man ship honest people
Four steps take you from first enquiry to a commissioned system. Here is how commercial solar installation works for your site.
Share your electricity bills and operating hours. We assess your roof, switchboard and shading, then send a clear proposal.
We design the panel layout and inverter sizing around your roof, shading and daytime usage.
We apply eligible STC discounts and handle network approval and paperwork for you.
Our CEC-accredited team installs, tests and commissions the system, then sets up monitoring.
Federal STCs can reduce the upfront cost of eligible commercial solar systems. We apply eligible STC discounts to your quote and explain what they are worth for your system.
STC eligibility depends on system size and installation date, so we confirm what applies before you commit.
Eligible systems may receive federal STCs, applied as a discount on your quote.
We check your property and system against current program requirements before quoting.
Finance options may be available through approved lenders, subject to credit approval.
We prepare the STC and network approval paperwork, so you have less to arrange.
Browse recent solar upgrades completed across Brisbane and South East Queensland. See added panels, replaced inverters and finished switchboards, and how we keep customers updated at each stage.





Sunpac Solar upgrades solar systems across Brisbane. Contact us with your postcode to confirm availability.
Answers to common questions about upgrading an existing solar system in Brisbane, from cost and approvals to inverters and meter boxes.
The cost to upgrade solar panels depends on the upgrade type, inverter capacity, roof access and switchboard condition. We provide a free quote after assessing your existing system.
Often yes, if your inverter has spare capacity and the network approves the larger system. If not, a new inverter or a separate system may suit better.
Sometimes. An older or full meter box may need new circuit protection or space for the added equipment. We inspect it during your site assessment.
Added panels and full system replacements may qualify, subject to eligibility rules. Replacing some panels or only the inverter does not create STCs. We check your system.
Tell us about your existing system and what you want to add or replace. Our team will review your details and send a clear quote.
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