Thermal Drones for Solar Array Inspection
A photovoltaic array fails one module at a time. A cracked cell, a failing bypass diode or a corroded connector runs hotter than the modules around it, and a thermal pass over the rows finds it in minutes where a handheld scan needs a ladder, a clipboard and a long day. The payload requirements are specific: radiometric capture so a hot module can be ranked by temperature rather than brightness, enough resolution to separate one module from its neighbour at 30 to 50 feet, and georeferencing so the anomaly lands on the right row in the work order. On a utility-scale site, the bigger decision is how the flight happens at all — a pilot with a truck, or a docked aircraft flying the same route on a schedule and emailing the results.
Get a free solar inspection payload recommendationRecommended drone & thermal payload
3 picks
Dock 3 Solar Panel Inspection Bundle
$26,237
A docked aircraft that flies the same inspection route on a schedule with no pilot on site, which is how monthly O&M scans stay affordable on a large array.
Solar Panel Inspection Bundle
$8,999
Aircraft, radiometric thermal payload and case in one purchase for crews flying their own routes across several sites.
DJI Zenmuse H30T
$11,999
High-resolution radiometric thermal with zoom, for teams already flying a Matrice 350 or 400 and adding an inspection payload.
What this mission demands
Module-level resolution
At a normal inspection altitude one module has to occupy enough pixels to show a single hot cell. Higher resolution means fewer passes, or the same pass from higher and safer.
Repeatable flight paths
A defect is only actionable when it can be compared with the last scan. Waypoint missions, or a dock that flies the route itself, keep the imagery comparable month to month.
Georeferenced output
An image is not a work order. Position data ties each hot spot to a row and module so a technician can walk straight to it.
Heat that survives the flight
Fly with the array under load and in stable sun. A radiometric payload records the temperature, which is what separates a failing diode from an afternoon shadow.
Solar inspection aircraft & thermal payloads
24 products
China384 resolution · 12-month warranty
or $2,186/mo · 0% APR
640 resolution
or $4,526/mo · 0% APR
China384 resolution · 12-month warranty
or $817/mo · 0% APR
China384 resolution · 12-month warranty
or $29/mo · 0% APR
China384 resolution
or $812/mo · 0% APR
USA384 resolution · 12-month warranty
Detection range not published
China384 resolution · 12-month warranty
or $2,186/mo · 0% APR
China384 resolution · 12-month warranty
≈490 yd detection (modeled)
or $2,445/mo · 0% APR
China384 resolution · 12-month warranty
≈490 yd detection (modeled)
or $2,186/mo · 0% APR
China384 resolution · 24-month warranty
≈530 yd detection (modeled)
or $483/mo · 0% APR
China384 resolution · 12-month warranty
or $2,188/mo · 0% APR
China384 resolution · 24-month warranty
≈370 yd detection (modeled)
or $890/mo · 0% APR
China384 resolution
or $2,374/mo · 0% APR
China384 resolution · 12-month warranty
or $750/mo · 0% APR
China384 resolution · 65.3oz · 12-month warranty
≈490 yd detection (modeled)
or $625/mo · 0% APR
China384 resolution · 43oz · 12-month warranty
≈490 yd detection (modeled)
or $350/mo · 0% APR
384 resolution · 24oz · 60-month warranty
or $27/mo · 0% APR
China384 resolution · 65.3oz · 12-month warranty
≈490 yd detection (modeled)
or $417/mo · 0% APR
China384 resolution
≈490 yd detection (modeled)
or $625/mo · 0% APR
China640×512, 8mm lens, 25 mK NETD, LRF, 50MP RGB, 16x hybrid zoom, IP44 rated, 1.18kg, 42 min flight time · 25mK NETD · 437yd detection · 31oz · 24-month warranty
437 yd detection
or $1,292/mo · 0% APR
China384x288 · 19mm lens · 45mK NETD · Dual Sensor · DJI M300 · 480g · 200yd detection · 16oz · 36-month warranty
200 yd detection
or $625/mo · 0% APR
China384 resolution · 43oz · 12-month warranty
≈490 yd detection (modeled)
or $665/mo · 0% APR
China384 resolution · 12-month warranty
≈490 yd detection (modeled)
or $912/mo · 0% APR
China384 resolution · 12-month warranty
or $75/mo · 0% APR
Questions buyers ask
With the array under load and in steady sun, usually midday to early afternoon. You want the modules producing, so a failing cell stands out against its neighbours rather than everything reading the same temperature.