SOLAR PANEL
100kW
Best for larger-sized businesses
$39,999*
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100kW Solar System
A 100kW solar system is a large-scale energy setup that’s perfectly suited for medium to large businesses, schools, warehouses, shopping centres, or even community facilities that have high energy demands. In Australia, systems of this size can make a huge difference to electricity bills, often cutting them down by a significant margin each month. Over time, that means real, long-term savings that keep adding up year after year.
Beyond the cost benefits, a lot of Aussie businesses are turning to 100kW systems to meet sustainability targets, reduce their carbon footprint, and show customers they care about the environment. Plus, with energy prices constantly on the rise, having your own renewable power source provides a layer of protection against future cost hikes — a smart move for any organisation thinking ahead.
Discover The Best Solar Panel System For Your Home And Business
10KW
Solar System
Just right for most family homes
$
5,999
*
Small Home
- Tier 1 Solar Module
- 5kW Power Inverter
- 6,600w Tier 1 Panels
- High Efficiency Solar Module
13KW
Solar System
Medium homes and small business
$
7,599
*
Medium Home
- Tier 1 Solar Module
- 8kW Power Inverter
- 10,300w Tier 1 Panels
- High Efficiency Solar Module
20KW
Solar System
Larger homes and small businesses
$
10,299
*
Big Family Home
- Tier 1 Solar Module
- 10kW Power Inverter
- 13,200w Tier 1 Panels
- High Efficiency Solar Module
40KW
Solar System
Best for large shops and clinics
$
16,599
*
Big Family Home
- Tier 1 Solar Module
- 30kW Power Inverter
- 30,000w Tier 1 Panels
- High Efficiency Solar Module
50KW
Solar System
warehouses and mid-size business
$
19,599
*
Medium Industrial
- Tier 1 Solar Module
- 40kW Power Inverter
- 40,000w Tier 1 Panels
- High Efficiency Solar Module
100KW
Solar System
Best for larger-sized businesses
$
39,999
*
Huge Commercial
- Tier 1 Solar Module
- 50kW Power Inverter
- 50,000w Tier 1 Panels
- High Efficiency Solar Module
*Performance data is based on CEC guidelines and may differ depending on your location. For personalized advice on your solar requirements and potential savings, please consult with an Aussie Solar Installation expert.
How Much Energy Does a 100kW Solar System Produce?
On average, a 100kW solar system in Australia can generate between 380–420 kWh per day, depending on your location, panel orientation, and seasonal variations.
Here’s a rough idea of what that means:
Power a medium-sized office building for an entire workday
Run a refrigerated warehouse’s cooling system and lighting for hours
Support multiple classrooms in a school with computers, lights, and air conditioning
Reduce reliance on the grid for high-energy businesses like manufacturing or retail
Estimated Energy Production for a 100kW Solar Setup
A 100kW solar system can deliver a significant amount of clean electricity each day, but the exact figures depend on where in Australia it’s installed. Sunshine hours, seasonal changes, and even shading from nearby trees or buildings can influence the system’s output. In sunnier locations like Perth and Brisbane, you can expect consistently higher yields, while cities with more cloudy days like Melbourne may produce a bit less. These estimates below give you a useful guide to what’s possible in major capital cities, assuming the panels are positioned and maintained well.
100kW Solar System Output by Capital City
| City | Approximate Daily Output (kWh) |
|---|---|
| Adelaide | 385kWh |
| Brisbane | 400kWh |
| Canberra | 385kWh |
| Melbourne | 335kWh |
| Perth | 420kWh |
| Sydney | 360kWh |
Price and Installation Costs of a 100kW Solar System in Australia
A high-quality 100kW solar system in Australia typically starts from around A$39,999, making it a cost-effective choice for medium to large businesses, schools, warehouses, shopping centres, or community facilities. Installation usually costs between A$1,000 and A$3,000, depending on your roof type, system complexity, and location. Always make sure your installation is CEC-accredited and approved, so you know it meets Australian safety and quality standards.
A typical installation process involves:
Site inspection & design – Evaluating your roof, available space, and energy needs
Approval & permits – Securing grid connection approval from your distributor
Installation – Mounting panels, wiring, and setting up inverters
Testing & commissioning – Making sure everything runs efficiently
Monitoring setup – Letting you track system performance online
At Aussie Solar Tech, we’re a CEC-accredited solar retailer and installer — so you’re not just getting high-quality products, but also expert workmanship from day one.
How Much Roof Space Will You Need for a 100kW Solar System in Australia?
For a 100kW solar system, you’ll typically need 500–650 square metres of usable roof space, depending on the panel wattage and layout. Standard commercial panels in 2025 are usually between 440W and 550W, so the total number of panels required will vary:
440W panels: around 225–230 panels
500W panels: around 200 panels
550W panels: around 180–185 panels
The roof should ideally be free of major shading from trees or nearby buildings, as this can reduce efficiency. North-facing roofs give the best performance in Australia. If roof space is limited, businesses may consider ground-mounted systems or high-efficiency panels, though these can cost a bit more.
What Australian Businesses Should Know Before Installing a 100kW Solar System
Before committing to a 100kW solar system, it’s important to think through a few key factors. Start with your actual daytime energy consumption to make sure the system meets your needs. Check your roof’s condition and how much usable space is available. You’ll also need to consider grid connection requirements and any limits on exporting excess electricity back to the network. Don’t forget to evaluate the quality of panels, inverters, and other components, as well as the reputation and experience of your installer. Finally, plan for ongoing maintenance and monitoring, so your system keeps running efficiently for years to come.
Why Choose Able Solar Installation For Solar Panels?
Reduced Electricity Bills
Prices for electricity in Australia keep going up. With a combination of a commercial solar system and your business, you can make your own power, which will save you a lot of money on your monthly bills. Many of our customers say they save up to 70% on their monthly utility costs.
Premium Products, Guaranteed Performance
We install top-tier solar panels, inverters, and battery systems from leading global brands. Our products are built to withstand Australian weather and deliver long-lasting performance, backed by comprehensive warranties.
Brand Image and Sustainability
Going solar not only saves you money, but it also makes your brand look better when it addresses the environment. Customers, along with additional stakeholders like businesses that want to use less energy and migrate to clean energy.
Energy Independence & Stability
Solar energy makes you less reliant on the grid, which protects your business from unexpected blackouts and rate hikes, making sure that everything runs smoothly all the time.
Expert Local Installers
We are Standards Australia Approvals (SAA)-certified, and in-house installation teams work across New South Wales. With years of local experience, we handle everything—from permits and grid connections to final inspection—with professionalism and care
Unmatched 24/7 Support
As a comprehensive solar provider, we offer continuous help, support, and maintenance throughout the entire lifespan of your system.
What's We Included In Your Solar Panel Installation?
Free Site Assessment And Energy Analysis
Custom System Design And Proposal
Supply Of High-Efficiency Solar Panels And Inverter
Professional Installation By SAA-Accredited Electricians
Assistance With Rebates And Incentive Claims
System Monitoring Setup And Customer Training
Industry-Leading Warranties
Ongoing Technical Support And Maintenance Options
We Install CEC Approved Popular Solar Panels In Australia
- SunPower Solar Panel
Known for being very efficient and lasting a long time, making it perfect for both homes and businesses.
- Trina Solar Panel
Known for being reliable and providing high energy output at a low cost.
- REC Solar Panel
Delivers robust performance and an excellent warranty, making it a trusted choice for residential and commercial applications.
- Longi Solar Panel
Famous for its modern monocrystalline technology, which makes this very efficient as well as having good significance.
- AIKO Solar Panel
Provides dependable performance with a lot of energy output, focusing on solutions that are both cost-effective and eco-friendly.
- Jinko Solar Panel
Provides reliable performance with a lot of energy output, focusing on solutions that are both cost-effective and eco-friendly.
- Canadian Solar Panel
Known for producing durable, high-performance solar panels suitable for various climates and applications.
- Q CELLS Solar Panel
This panel has cutting-edge technology that makes it very efficient and effective, so it can be used in homes and businesses.