Compatible Inverters for a 75kW Solar System
Energy storage options to extend system performance:
- 30kWh Battery
- 40kWh Battery
- 50kWh Battery
- 100kWh Battery
With the 2025 federal battery rebate (~$372/kWh), save up to $18,600 on battery upgrades.
75kW Solar System
The 75kW solar system is a powerful, scalable solar power system designed for larger businesses with high energy needs. Delivering an AC output of around 300–330 kWh per day, it can produce enough electricity to run warehouses, commercial buildings, or manufacturing facilities efficiently. Most systems feature 157 solar panels and require approximately 447 – 522 m² of roof space. This makes it the ideal clean renewable energy solution for companies aiming to reduce their operational costs and reliance on the grid.
Why Choose a 75kW Solar System
Investing in a 75kW solar system is a smart move for commercial settings looking to reduce energy spend and boost sustainability credentials.
-
- Save significantly on your power bill costs
- Eligible for federal STC rebates (up to 100kW)
- Offset reliance on volatile energy provider rates
- Use premium technology including NETCC approved solar inverters
- Installed by SAA-certified professionals
Whether your goal is to achieve long term savings, meet green targets, or improve your bottom line, this system delivers better understanding of your energy usage and enables you to generate long term returns.
75kW Solar System Specifications
Key Benefits of Our 75kW Packages
- AC Output: 300–330 kWh daily
- Panel Count: 140 – 160 x 475w
- How Much Space: 447–522 m² of available roof area
- Total Cost: $60,000–$75,000 after rebates
- Rebates: Federal STC incentives available through 2030
- Battery-ready and compatible with VPP programs
Best Applications for a 75kW System
- Larger businesses with consistent daytime consumption
- Facilities with high energy equipment
- Commercial offices, schools, or health facilities
- Businesses aiming to lower operational costs and carbon emissions
Personalised, Localised - Trusted
We’re a Family, Just Like Yours
Dedicated, personalised support from start to finish—we’re with you every step of the way.
Proudly Australian, Authentically Local
Locally owned and operated, powering every corner of Australia.
Quality Installations, No Compromises
Your peace of mind is our priority—top-tier installations with a clear, step-by-step process.
Support That Lasts A Lifetime
Our commitment doesn’t end with installation. We’re here for the long run, even ten years from now.
Residential vs Commercial Solar
While residential clients may prefer smaller systems, the 75kW solar is specifically designed for commercial settings. Learn more about Residential Solar and Commercial Solar.
SOLAR AND BEYOND
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FAQs 75kW Solar System
Got Questions About 75kW Solar System? We’ve Got Answers!
Typically 180–200 solar panels, depending on brand and efficiency.
Roughly 400–500 m², accounting for tilt and shade factors.
It’s best for commercial applications due to its size and output.
It can power most business operations depending on load and usage.
Batteries are optional but help increase resilience and savings.
Yes, our systems are battery-ready for future upgrades.
Prices vary depending on state relevant rebates, STC rebates, technology and install complexity.
Federal STC rebates and up to $18,600 off battery storage from 2025.
This will depend on a range of factors, but typically 3.5 to 5.5 years, depending on usage and savings.
Most systems are live within 2–3 weeks of approval.
All are CEC-accredited and SAA-certified for compliance.
Approximately 300–330 kWh/day on average, based on location.
Systems still generate, but with reduced output; grid access balances demand.
Most systems last 25+ years with ongoing maintenance.
Pricing
6.6kw
Perfect for smaller homes
From $50 / month
Up-to
$
2000Savings
- Tier-1 N-Type High Performance Panels
- Lifetime support included!
- Battery and EV compatible for future upgrades!
- Free Monitoring to track your savings!
- Fast-track installation
13.2kw Solar
Best for mid-sized homes
From $75 / month
Up-to
$
4000Savings
- Tier-1 N-Type High Performance Panels
- Lifetime support included!
- Battery and EV compatible for future upgrades!
- Free Monitoring to track your savings!
- Fast-track installation
15kW +
Ideal for energy-hungry homes
From $90 / month
Up-to
$
5000+Savings
- Tier-1 N-Type High Performance Panels
- Lifetime support included!
- Battery and EV compatible for future upgrades!
- Free Monitoring to track your savings!
- Fast-track installation
Ready to install a 75kW solar system? Request a Quote today with Solar Galaxy.
Looking for a particular System Size?
Find out more about the various Commercial Solar Systems that we install below