Solar PV Aerial Thermography

Thermal Imaging – Essential for Accurate Fault Detection and Peak Performance

A reduction in yield caused by incorrectly identified or overlooked problems is a common challenge for solar power operators. Yield‑monitoring software can detect drops in production, but it cannot pinpoint the root cause — which often originates from a physical fault in one or more solar modules.

Inspecting panels individually is both time‑consuming and impractical, even on smaller rooftops or 0.5 MW solar parks. Many of the most common issues — such as hotspots and microcracks — are invisible to the naked eye and remain undetected during routine visual checks.

Thermal imaging paired with advanced analytical tools, including artificial intelligence, offers a fast, accurate, and highly efficient solution to these challenges. It enables operators to identify hidden faults, locate their exact position, and take action before performance loss escalates.

Our 1-2-3 process

Gershoj Energia uses a powerful drone equipped with a high‑quality thermal imaging camera to inspect your PV panels. During flight, the drone captures high‑resolution temperature data for every panel, allowing defects to be identified through their thermal signatures. Defective cells operate at different temperatures, making issues and deviations clearly visible in the images.
The drone also logs GPS coordinates throughout the flight, ensuring that faulty panels can be precisely located later during inspection or repair.

The full analysis process can be completed in just a few weeks (weather permitting) and follows a structured three‑step workflow:

1. Inspection

We identify critical issues at system level and capture consistent, high‑quality thermal and visual data using aerial imaging technologies.

2. Analysis

Our engineers evaluate the captured data with industry‑leading analysis software. Machine‑learning algorithms support the identification of diverse fault types, improving accuracy and speed.

3. Action

We deliver a detailed report showing exactly where corrective action is required to restore performance and improve return on investment.
Accurate fault identification reduces operating costs, accelerates repairs, and strengthens documentation for warranty and insurance claims.

What are the benefits?

Whether installed on rooftops or at utility scale, the operation of a solar power system functions much like a long‑term, fixed‑interest investment. It is not enough to identify the causes of performance decline — you must also quantify past yield losses and understand how they influence future payback periods.

We use sophisticated AI‑enabled software to analyse the underlying causes of reduced performance, while our highly experienced engineers verify and enhance the results. Based on these insights, we provide clear recommendations on actions you can take to improve the performance of your solar power system, regardless of size or installation type.

Using high‑quality data collected on site, we perform detailed trend analysis to identify patterns of performance deterioration. This enables us to assess long‑term production trends, determine the potential for preventive maintenance, and detect emerging issues at an early stage — whether in rooftop arrays, industrial systems, or large‑scale solar parks. Our precise diagnostics also support warranty and insurance claims by providing robust, well‑documented findings.

Consistent, high‑quality on‑site data and structured diagnostic reporting allow you to make informed decisions about maintenance and repairs. Our analysis reports quantify the financial impact of identified system faults, showing how each issue affects your return on investment from the bottom up.

Keeping pace with changes in the industry

With the support of our engineering and technical teams, we actively follow the latest industry research on factors affecting the reliability of PV modules and battery systems. As technologies evolve, so do the types of faults and performance risks that operators must manage. We continuously refine and enhance our services to reflect new scientific findings, emerging best practices, and advances in both solar and energy‑storage technology.

Our goal is to be the most reliable analytical partner in the renewable energy sector. We focus on clearly explaining complex technical processes, presenting insights in a practical and accessible way, and ensuring that our recommendations contribute to long‑term economic sustainability for our clients.

We conduct inspections anywhere in Hungary or Slovakia

Our aerial drone fleet operates with high‑performance, market‑leading drones equipped with advanced thermal imaging capabilities. This allows us to capture precise, high‑resolution data for both rooftop systems and utility‑scale solar parks.

No matter where your installation is located, we can quickly reach any site in Hungary or Slovakia. Our central position between Budapest and Vienna enables rapid deployment, ensuring timely inspections and minimal disruption to your operations.

Ready to see how thermal imaging can boost your PV and battery assets?

Contact our Team today.

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