Commercial Solar in Australia: What to Know Before Installing in 2025

Hi everyone,

We’re heading into 2025, and the momentum around commercial solar in Australia has never been stronger. With rising electricity costs, sustainability goals, and state/federal incentives still in place, many Aussie businesses are asking: Is now the right time to invest in solar?

If you’re considering solar for your warehouse, office, retail site, or industrial property, here are a few key things to know before making the move:

  1. Government Incentives & Rebates Are Still Available

The Small-scale Technology Certificates (STCs) and various state-based grants (especially in NSW, VIC & QLD) can significantly reduce your upfront investment. Make sure your installer helps you access all the rebates you qualify for in 2025.

  1. Battery Storage Is Becoming More Viable

Solar battery options like Tesla Powerwall, Sungrow, and BYD are gaining popularity. While batteries still add to the cost, they give you backup power and more control over usage during peak demand periods — a big plus for industrial operations.

  1. The ROI Is Better Than Ever

Thanks to falling panel prices and better tech, many businesses are seeing payback periods of 3–5 years, depending on system size and usage patterns. If you use a lot of power during the day, the savings can be massive.

  1. Not All Solar Installers Are Equal

Make sure you choose a CEC-accredited installer with commercial experience. A poorly designed system can hurt your ROI, or worse, fail to meet compliance standards.

  1. Site Inspection Is Crucial

Shading, roof structure, and energy patterns matter. A proper inspection will ensure your system size and layout are optimised for performance.

What are your thoughts?
Have you installed solar for your business recently? Are you planning to in 2025?
Let’s share experiences — it might help others decide.