Infrared solar panel testing
Infrared PV testing reads a solar array with a thermal camera while it produces. A defective cell, a corroded connection or a short shows up as a heat signature before it ever shows up in the output numbers. Certified thermographers scan the array without touching it or taking it out of production, at commissioning or any time after.
Why panels get tested
Solar panels are sold on twenty-year lives, and they often do not live up to it. Manufacturing quality is inconsistent; installation quality is at least as variable. The gap between the production a system was priced on and what it actually delivers usually opens quietly, one degraded string and one corroding connector at a time, and the inverter data averages it away until the loss is large.
An infrared scan reads the array panel by panel. A failing cell, a loose contact, or a corroded connection runs hotter than its neighbors, and the camera sees it years before it becomes a production number, or a fire.
Four jobs, one method
Quality assurance at commissioning
The best time to find an installation defect is while the installer still owns it. A commissioning scan documents that the panels went in properly and free of defects, verified by a firm that did not install them and is not paid to defend them.
Protecting production
Premature deterioration erases the gains a solar investment was built on. Scans at regular preventive-maintenance intervals catch degradation while it is one panel's problem instead of one array's.
Preventing overheating
Constant moisture exposure corrodes connections; loose and corroded connections overheat; overheating connections deteriorate the system and can start fires. All of it is visible thermally, early.
Safety at full voltage
Because the scan is non-contact and conducted from a distance, it runs safely on systems at the highest voltage; overloads and short circuits are pinpointed without touching anything.
Large or unwalkable arrays are flown by drone, part of the same service, same visit. Electrical gear feeding the array is covered under infrared electrical inspections, and both scans can share a mobilization.
Solar testing questions
What does an infrared scan find on a solar array?
The failure modes that cost production or start fires: defective semiconductors, ruptured cells, loose contacts and short circuits, corroded and overheating connections, and contamination from moisture or dirt. Each of these shows as a thermal anomaly against the panels around it long before it shows in the inverter data.
Is infrared testing safe on an energized array?
Yes. It is the reason infrared fits this job. The scan is non-destructive and conducted from a distance, so it can be run safely on systems at the highest voltage, and the array stays in production while we test. Overloads and short circuits are pinpointed without physical contact.
When should solar panels be scanned?
Twice in a system’s life, and then on a rhythm: at commissioning, as quality assurance that the installation is free of defects while the installer is still on the hook, and at regular maintenance intervals afterward, because constant exposure to moisture corrodes connections and premature deterioration quietly erodes the production the investment was priced on.
What does a solar panel scan cost?
The drivers are array size, access (rooftop or ground-mount, walked or flown), and mobilization. A large array can be covered by drone in a fraction of the time, and combining the scan with a roof moisture survey or an electrical inspection shares the trip.
Tell us about the array
Rooftop or ground-mount, roughly how many panels, and what prompted the call: commissioning, a production drop, or a maintenance cycle. We will scope the scan and tell you when we can be there.