Solar Thermal Inspection

Why Solar Panel Thermal Inspection is so important

Factories, warehouses, and commercial units often rely on their solar rooftop systems for uninterrupted power to run machinery, lights, HVAC systems, and other critical operations.
A fault in the solar system can cause production losses, downtime, or delays, leading to a direct financial impact.

2. Energy Efficiency = Direct Savings

Even a small dip in efficiency due to hot spots or faulty panels can lead to significant energy losses, especially for units with high energy demand.
Timely drone inspections help quickly identify issues and fix them, ensuring maximum ROI on their solar investment.

3. Higher Fire & Electrical Risk

Industrial rooftops often have dense wiring, machinery, and flammable materials nearby.
Faulty panels or hotspots can increase the risk of electrical fires, so early thermal detection is crucial for safety.

4. Structural Complexity

Industrial rooftops are often uneven, cluttered, or multi-levelled, making manual inspections dangerous or ineffective.
Drones can safely inspect all areas from above with thermal cameras to detect issues in hard-to-reach places.

5. Minimal Disruption

Drone inspections are non-intrusive and can be done without shutting down operations.
No need to send workers up on risky roofs or disturb ongoing production processes.

6. Regulatory & Insurance Compliance

Many industrial clients need to submit regular inspection reports for compliance or insurance claims.
Drone inspections provide high-quality thermal & visual documentation, which can be used as evidence for warranties, audits, or insurance purposes.

How Much Generation Loss Happens Without Frequent Inspections?

1. Hotspot Formation (2–10% loss)

Hotspots are caused by faulty cells, shading, or dirt.
One hotspot can reduce the efficiency of the entire string of panels.
If 5% of panels in a system have hotspots and reduce performance by 30%, the total system efficiency can drop by 2–3% easily.
Drone thermal scans can identify these early, before they damage more panels.

2. Soiling (5–15% loss)

Dust, bird droppings, or pollution cause soiling losses.
Without inspection and cleaning schedule optimisation, losses increase.
In industrial areas with pollution or near roads, losses can reach 10–15% without regular check-ups.

3. String & Inverter Failures (3–20% loss)

A faulty string inverter or disconnected cable might go unnoticed for weeks or months without inspection.
A single inverter failure in a 100 kw system can cost you 20–25 kWh per day, leading to over ₹5,000/month in lost value (₹6 per unit).
Regular thermal inspections identify such anomalies within minutes.

4. PID (Potential Induced Degradation) – 1–5% per year

Caused by voltage stress on modules.
Without thermal or EL imaging inspections, PID remains undetected and causes gradual but permanent degradation.

5. Mismatch & Degradation (1–5% loss annually)