Commercial solar is becoming one of the most cost-effective investments for Australian businesses looking to reduce power bills, stabilise energy costs, and improve environmental impact. Naturally, the first question most organisations ask is: how much do commercial solar panels cost in 2025?
Below is a clear and updated breakdown covering system costs, installation charges, influencing factors, and important savings insights.
The average cost of a commercial solar system ranges between $850 and $1,300 per kW, depending on panel quality, inverter selection, installation complexity, and your location.
System Size | Approx. Cost Range | Best For |
10 kW | $9,000 – $13,000 | Small offices, retail outlets |
30 kW | $27,000 – $39,000 | Schools, clinics, mid-sized businesses |
50 kW | $45,000 – $65,000 | Warehouses, commercial facilities |
100 kW | $85,000 – $130,000 | Industrial buildings |
These prices generally include panels, inverter, mounting, labour, electrical components, and federal incentives (STCs).
Commercial systems are priced per kW or per watt, with most falling between $0.85 to $1.30 per watt.
Your commercial solar panel installation cost varies based on how simple or complex your site is.
Most commercial installation costs fall between $7,000 and $25,000, depending on system size.
Although most commercial properties install between 30 kW and 200 kW, smaller systems are often suitable for small offices, shops, and micro-businesses.
A compact solution for small daytime-operating businesses is a
10 kW solar system.
Startups, small shops, and home-based businesses may choose a
5 kW solar system.
Many small commercial properties step up to a
6 kW solar system.
A 6.6 kW solar system is one of Australia’s favourite system sizes due to its excellent value and generation capacity
Premium Tier-1 brands command a higher price but offer long-term performance, higher output, and better degradation rates.
Metal roofs are cheaper and faster to install on.
Tile roofs require extra mounting hardware and labour.
STCs reduce upfront cost significantly — especially for small to mid-size commercial systems.
Higher daytime consumption often means a larger system is required, increasing the overall cost.
Absolutely. With electricity prices continuing to rise, businesses installing solar can achieve:
For many businesses, commercial solar is now a strategic investment rather than a cost.
Savings depend on operating hours, tariffs, and the size of your system, but:
A 30–50 kW business solar system typically saves $10,000 to $22,000 per year, making it one of the highest-ROI upgrades for commercial properties.
Understanding how much commercial solar panels cost helps businesses plan effectively for long-term energy savings. With the right system size, quality components, and a trusted installation partner, commercial solar offers substantial financial and environmental benefits.
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Commercial solar panels typically cost between $850 and $1,300 per kW, depending on system size, panel quality, and installation complexity.
The average cost of a commercial solar system ranges from $25,000 to $120,000, based on system size (10 kW to 100 kW and above).
Installation costs vary based on roof type, accessibility, wiring requirements, inverter choice, and whether switchboard upgrades are needed.
Yes. Most businesses see a 60–80% reduction in electricity bills and achieve payback within 3–5 years.
A typical commercial installation takes 2–7 days, depending on size and site conditions.
Commercial systems need minimal maintenance—usually annual cleaning and inspection to ensure peak performance.
Solar Panel System Sizes
6.6 KW Solar System | 10.5 KW Solar System | 13.3 KW Solar System | 19.5 KW Solar System | 10kw Solar System | 5kw Solar System | 6kw Solar System | Solar Panels for Home | 8kw Solar System | 3kw Solar System | 13kw Solar System | 2kw Solar System
Solar Products
Residential Solar System | Solar Panel Installation | Solar Panel Battery
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Harry is a passionate writer specializing in renewable energy and sustainability. With a deep understanding of solar installation, maintenance, custom system design, and advanced battery storage, he brings technical expertise to his writing, making complex energy concepts accessible to businesses and homeowners alike.
Having covered numerous residential and commercial solar projects, Harry educates and empowers his readers to optimize energy efficiency and transition to clean energy solutions. As a key voice in the industry and a leader at Esteem Energy, he is committed to delivering insightful content that promotes innovation, cost-effective solutions, and a greener future.
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