07/11/2025
Attention!‼️ Homeowners with Rooftop Solar Panels ☀️
Rooftop solar panels are a powerful investment in clean energy and long-term savings — but like any electrical system, they require regular care to stay safe and efficient. Thermal imaging (electrical thermography) is a proven, non-invasive way to monitor the health of rooftop solar arrays and associated electrical components.
Highpoint Solutions provide highly experienced and certified electrical thermographers, with over a decade of experience in the field, and we recommend annual inspections for every homeowner with rooftop solar. Here’s why.
Why annual thermal inspections matter:
Solar panels and their electrical connections operate under varied conditions: sun, heat, moisture, and thermal cycling can stress components over time. Defects such as hotspots, string failures, or a single faulty panel can reduce system output, increase fire risk, and lead to costly repairs if undetected.
Thermal imaging reveals temperature anomalies invisible to the eye, allowing our thermographers to pinpoint problems before they escalate.
For homeowners, an annual thermographic inspection provides peace of mind — confirming the array is performing safely and efficiently and protecting your investment.
Common rooftop solar issues thermal imaging finds:
✅ Hot spots in panels: Internal cell or connection faults create localised heating that can lead to delamination, reduced power, or ignition risk. Thermal cameras quickly identify these hotspots so panels can be replaced or repaired.
✅ String failures and mismatch: Underperforming strings or mismatched panels produce temperature differences along the array. Thermography highlights abnormal strings or panels with lower output or overheating cells.
✅ Faulty panels or bypass diodes: Damaged cells and bypass diode failures show as hot areas that indicate electrical stress or partial shading issues. Early detection prevents further degradation.
✅ Loose or corroded connectors: Poor connections at junctions, MC4 connectors, or combiner boxes produce elevated temperatures and are common precursors to arcing or fires.
✅ Uneven shading effects: Partial shading can create reverse bias and hot spots; thermography helps locate shading-induced thermal anomalies so trimming or repositioning solutions can be applied.
Other common system failures and thermal imaging applications:
✅ Inverters: Inverters convert DC to AC and are critical to system operation. Overheating components, loose connections on AC or DC terminals, and internal cooling failures show up as thermal irregularities. Thermography helps identify failing components, poor ventilation, or overloaded circuits before inverter failure occurs.
✅ Distribution boards and breaker panels: Overloaded breakers, loose busbar connections, or failing breakers generate heat. Thermal scans of distribution boards reveal hotspots at breakers, lugs, and busbars that indicate potential overloads or impending failure.
✅ DC isolators and switchgear: Faulty or poorly connected DC isolators heat up under load. Thermal imaging can quickly detect elevated temperatures at isolators and switchgear, highlighting maintenance needs to reduce fire and safety risk.
✅ Combiner boxes and junction boxes: These enclosures collect strings and house fuses or connectors. Corrosion, loose lugs, or blown fuses produce distinctive thermal signatures detectable during an inspection.
✅ Cable runs and connectors: Overloaded or damaged cables and poorly crimped connectors generate heat along their run. Thermography provides a fast way to scan for hot spots along conduits and trays without dismantling the system.
✅ Roof penetrations and mounting hardware: While not electrical, poorly installed or corroded mounts can stress panels and wiring. A thermal inspection can reveal temperature anomalies related to mechanical stresses or moisture ingress that affect electrical performance.
What to expect from a professional thermographic inspection 🤔
A thorough inspection by Highpoint Solutions includes a visual assessment, infrared scan under load conditions (ideally during peak generation), and diagnostic interpretation by certified thermographers. We deliver a clear report with annotated thermal images, severity ratings, recommended corrective actions, and prioritised maintenance suggestions. Our approach focuses on safety, compliance, and maximizing system uptime and efficiency.
Protect your home and investment!
Rooftop solar delivers significant benefits, but complacency about maintenance can leave homeowners exposed to performance losses and safety hazards. Annual thermal imaging inspections are a cost-effective, proactive measure to detect faults early, reduce fire risk, and keep your system producing reliably.
Highpoint Solutions combines advanced thermography, industry certifications, and real in-field experience to help homeowners protect their investments and keep their systems running safely.
Contact us today to schedule your annual rooftop solar thermographic inspection.
Highpoint Solutions
Ph: 1300 851 842
www.highpointsolutions.com.au
