Solar Panel Repairs After Extreme WA Weather

Western Australia doesn't get hit by hail the way southeast Queensland or inland New South Wales do, but it makes up for it with cyclones. Severe Tropical Cyclone Ilsa crossed the Pilbara coast in 2023 with a record Australian sustained wind speed of 218 km/h. Severe Tropical Cyclone Mitchell tracked through the Kimberley, Pilbara, and Barrow Island in February 2026, causing an estimated $8.11 million in damage. Between cyclone seasons, Perth and the South West still see their share of damaging wind gusts and severe storms capable of doing real damage to a rooftop solar array.

Solar Panel Repairs after one of these events aren't always as simple as replacing an obviously cracked panel. Some of the most serious damage doesn't show up until weeks later, once a hidden microcrack has spread far enough to drag down a whole string's output. This article covers what actually happens to a solar system during extreme WA weather, what to check safely afterward, and how repair costs compare to a full system replacement.

Why WA's Extreme Weather Puts Solar Systems at Real Risk

The James Cook University Cyclone Testing Station has published a dedicated technical report specifically examining wind field damage to solar panels following Cyclone Ilsa in the East Pilbara, which tells you how seriously the engineering side of the industry takes this risk in WA's north. Properties across the Kimberley and Pilbara face cyclone-force winds most seasons, while Perth metro and the South West are more likely to see severe thunderstorms and damaging straight-line winds than tropical systems.

Both types of event put stress on a solar system in similar ways: wind-driven debris impacting the glass, extreme wind loading on the racking and mounting frame, and water finding its way into seals and junction boxes that were never tested for that kind of pressure.

What Actually Happens to a Solar System in a Cyclone or Severe Storm

Not all storm damage looks the same, and not all of it is visible from the ground.

Damage Type	Common Cause in WA	Visible or Hidden
Cracked or shattered glass	Flying debris during cyclonic winds or severe thunderstorms	Visible
Microcracks in solar cells	Impact stress from wind-driven debris, even without visible glass damage	Hidden, needs electroluminescence or thermal imaging to detect
Water ingress in the junction box	Wind-driven rain forcing its way past storm-stressed seals	Hidden until output drops or corrosion sets in
Racking or mounting failure	Extreme wind loading during cyclonic events in the Pilbara and Kimberley	Often visible on close inspection, rarely obvious from the ground
Cable and connector damage	Wind whipping loose cabling or debris impact	Hidden, usually found during electrical testing
Inverter faults	Power surges or voltage spikes during the storm	Visible as error codes on the inverter or monitoring app

What To Do Immediately After a Storm

Don't Climb the Roof

Wet or damaged panels can carry live electrical current even after the storm has passed. Checking for obvious damage from the ground, cracked glass, dark spots, or panels sitting at an odd angle, is as far as a homeowner should go before a professional inspection.

Document Everything

Photos and video taken from ground level support an insurance claim later and give a solar panel repairs technician a starting point before they arrive.

Check the Inverter and Monitoring App

A sudden drop in reported output, an error code, or a system that's stopped generating altogether are all signs worth flagging immediately, even if nothing looks visibly wrong from below.

Call a Professional Before Assuming the Worst

A single cracked panel doesn't necessarily mean the whole system needs replacing, and a system that looks fine from the ground can still have hidden microcracks quietly reducing output. Either way, a proper inspection is what actually determines the next step.

Solar Panel Repairs vs Full Replacement

The extent of the damage, not the size of the storm, is what determines whether a system needs a repair or a full replacement.

Damage Severity	Typical Fix	Approximate Cost
Minor (single cracked panel, rest of array unaffected)	Individual panel replacement	$300 to $600 per panel
Moderate (multiple panels or connector damage)	Panel replacement plus rewiring or connector repair	$800 to $2,500
Racking or mounting failure	Re-mounting or full racking replacement and re-certification	$1,500 to $4,000+
Severe (widespread array or inverter damage)	Partial or full system replacement	$3,000 to $8,500+, depending on system size

Recent WA Cyclones by Peak Sustained Wind Speed

Cyclone Ilsa (2023, Pilbara)      |████████████████████████  218 km/h
Cyclone Mitchell (2026, Kimberley/Pilbara) |███████████████   140 km/h

Figures reflect Bureau of Meteorology and published cyclone reporting. Wind speeds vary significantly by system and location, and both events caused documented damage across the affected regions.

Insurance, Warranties and Getting a Proper Inspection

Manufacturer warranties almost never cover storm or cyclone damage, and that's by design, not a loophole. A panel warranty covers manufacturing defects and performance degradation over time, not damage from an external event like wind-driven debris or a mounting failure during a cyclone.

Home and contents insurance is the actual mechanism that covers storm-related solar damage, but the coverage depends entirely on the policy. Some insurers require notification when a solar system is installed to maintain full coverage, and it's worth checking that the sum insured still reflects the full replacement cost of the panels, inverter, and any battery storage, not just the value at the time the system went in years earlier.

Insight: The gap between what people assume is covered and what's actually written into their policy is where most post-storm disputes happen. A homeowner who installed solar five years ago and never updated their sum insured may find their payout falls well short of current replacement cost, especially once panel and inverter pricing has shifted. Checking this before storm season, not after a claim gets knocked back, is the cheaper version of this conversation.

Choosing a Solar Panel Repairs Service for Homes, Regional and Cyclone-Prone Properties

Just Solar Co, a Western Australian solar service provider, includes solar system repairs as a core part of its service alongside new solar panel installation, battery storage, and bore and tank water systems, using in-house SAA-accredited electricians across Perth metro, the South West, and the Kimberley region.

Families and Homeowners

A post-storm inspection that checks for hidden microcracks and connector damage, not just visible glass cracks, is worth asking for directly, since the visible damage is rarely the full picture.

Rural and Regional Residents

Properties across the Pilbara and Kimberley face the highest cyclone exposure in WA, and a commercial solar panel installer or repairs service with genuine regional experience understands mounting and racking failure patterns that a metro-only operator may not see as often.

Apartment Owners

Storm damage to a shared rooftop system usually needs to go through body corporate channels first, but the same inspection principles apply, checking for hidden cell damage even when the visible glass looks intact.

FAQs

Does home insurance cover solar panel storm damage in WA?

Generally yes, though coverage depends on your specific policy and whether your sum insured reflects current replacement costs. Some insurers require notification when solar is installed to maintain full coverage, so it's worth confirming this with your provider before storm season rather than after a claim.

Can a cracked solar panel still be used?

A cracked panel should be inspected before continuing use. Once the glass is compromised, moisture can enter and accelerate corrosion, and the panel may also be carrying a live electrical current, which makes it a safety risk rather than just a performance issue.

How do I know if my solar panels were damaged in a cyclone?

Check the inverter or monitoring app for a sudden drop in output or error codes, and look from ground level for cracked glass or panels sitting at an unusual angle. Hidden damage like microcracks often needs a professional inspection using thermal or electroluminescence imaging to confirm.

Does my solar panel warranty cover storm or cyclone damage?

No, manufacturer warranties typically cover defects and performance degradation, not damage from external events like storms or cyclones. Home and contents insurance is the mechanism that covers storm-related solar damage, provided your policy includes it.

How much does it cost to repair a damaged solar panel in WA?

A single cracked panel typically costs $300 to $600 to replace, while more extensive damage involving multiple panels, wiring, or racking can run from $800 to several thousand dollars. Severe damage affecting the whole array may cost more to repair than to replace outright.

Getting Started

Extreme weather is a genuine and recurring risk for solar systems across WA, whether that's cyclone exposure in the Pilbara and Kimberley or severe storm activity further south. Solar Panel Repairs after one of these events start with a proper inspection, not a guess from the ground, and understanding what your insurance actually covers before storm season arrives is worth more than finding out after a claim gets denied. Just Solar Co Servicing Perth Metro, the South West, and the Kimberley region, WA Phone: 08 6337 4019 Website: justsolarco.com.au

Get in touch for a post-storm inspection and repair assessment, or a free consultation on solar panel installation and battery storage built to handle WA conditions.