Commercial & Industrial Solar in Perth Metropolitan
Compare Perth commercial and industrial solar suppliers, scored 0 to 100 on Google reviews and profile details, and what to check before you buy.
Commercial and industrial solar means supplying and installing larger systems for warehouses, factories, farms, schools and offices. Typical projects run from about 30 kW on a workshop roof to several hundred kW or more on a distribution centre. Perth's high sun hours and daytime-heavy business loads make it a good fit, but the equipment and design choices still decide whether the system pays back.
What to look for
Clean Energy Council accredited installers and a clear equipment list (panel, inverter and mounting brands, with warranty terms).
A load analysis based on your interval meter data, not a generic quote.
Experience with Western Power network approval, especially for export limits and systems above 30 kW.
Roof assessment, structural checks and a monitoring and maintenance plan.
How our scoring helps
We list suppliers in this category. Our scores weigh public review feedback and business details so you can shortlist faster. See the ranked guide to solar energy equipment suppliers for the top picks, and read how we score to see what counts. Always get at least three itemised quotes.
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All commercial & industrial solar, ranked by score and relevance
76 businesses. The order weighs each business's overall score by how much of its reviewed work is commercial & industrial solar, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.
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Common questions about commercial & industrial solar
- How much does a commercial solar system cost in Perth?
- Commercial systems commonly cost roughly $1.00 to $1.50 per watt installed, before any incentives. A 100 kW system might therefore land around $100,000 to $150,000. Roof type, switchboard upgrades, and network approval requirements move the price.
- How long does a commercial solar installation take?
- Expect a few weeks for design, approvals and equipment ordering, then days to a few weeks on site depending on size. Network approval from Western Power can add extra time for larger systems.
- How often does a commercial solar system need servicing?
- An annual inspection is a sensible baseline. It covers panel cleaning if needed, electrical checks, inverter status and monitoring data review. Inverters often need replacing after 10 to 15 years.
- How can I judge the quality of a solar supplier?
- Check accreditation, ask for similar completed projects and references, and compare warranties on panels, inverters and workmanship. Be cautious of quotes that skip a site assessment or don't name the equipment.
Guides to choosing commercial & industrial solar
- EOFY solar tax incentives for WA businesses: timing your purchase
How the financial year end affects commercial solar purchase decisions in WA, and what to ask your accountant before you commit.