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Commercial Drone Service · Oregon

Drone Solar Panel Inspection

Radiometric thermal inspections for residential, commercial, and utility-scale PV arrays across Oregon and the Pacific Northwest. M30T 640×512 IR sensor, ±2°C accuracy, 200× zoom, GPS-tagged anomaly maps. Commissioning, annual audit, post-storm, and pre-purchase due diligence.

Request a Mission Brief See Thermal Capabilities
What This Looks Like in Practice

The defects that ground-level walkthroughs miss are temperature signatures from above.

A solar array does not fail in obvious ways. A bypassed substring keeps producing — at a fraction of its rated output. A hot-spot cell quietly degrades the module around it for months before the inverter trips a fault. Junction-box corrosion shows up as a 4°C delta against the surrounding panel long before the connector fails. None of those defects look like anything from the ground; the array looks fine. The way you find them is by reading the array as a thermal image while it is producing under load — which is what the M30T is built for. The radiometric thermal sensor is 640×512 at ±2°C absolute accuracy with synchronized RGB capture, so every flagged anomaly arrives with both an infrared signature and a high-resolution visual reference your O&M team can act on. A flight over a 1-MW commercial array runs 20–30 minutes of airtime and replaces a full day of two-person string-by-string testing at the inverter.

The flight is structured around the conditions that make the data trustworthy. Mid-morning shoulder-season light in the Willamette Valley — April–June or September–October — gives you the clean diffuse irradiance that pushes defective cells into a measurable temperature delta against their neighbors without the glare and wash of mid-summer high sun. The capture is gridded and overlapping so the deliverable can stitch into an orthomosaic if you want a site-map output, and the 200× zoom lets us pull individual cell-level detail without dropping altitude. Reports include geo-tagged radiometric TIFFs (not just JPEGs), so the per-pixel temperature data is preserved for warranty submissions or forensic review. Active Part 107 commercial pilot, 614+ logged flights, 148+ flight hours, 9,164+ miles of airspace — every solar mission flies under FAA Part 107 daylight + visual-line-of-sight rules with LAANC airspace authorization where required.

Use Cases

Where drone thermal solar inspection fits.

Commissioning

Post-Install IR Baseline

Capture the array at handoff so every future audit has a clean reference. Flags installer defects (cracked cells from torquing, mis-keyed connectors, reverse-polarity strings) before they become a warranty fight.

Annual / Seasonal

Performance Audit

Spring and fall passes catch cells degraded over the dark months and modules stressed by summer thermal cycling. Output drift correlates to specific anomalies on a map your O&M team can dispatch a tech to.

Storm Response

Hail & Wind Damage

Post-event survey for insurance documentation. RGB pass for cosmetic glass and frame damage, IR pass for cell-level cracks too small to see — micro-cracks present as warm spots that a clipboard inspector will miss.

Due Diligence

Pre-Purchase / Acquisition

Buying a building, business, or solar farm with an installed array? An IR survey before close gives the negotiating leverage to price the array honestly — or walk away from a system the seller knows is degrading.

O&M Troubleshooting

Underperforming Strings

Your monitoring portal flags an underperforming string. We fly the affected combiner, isolate the module, and deliver a defect map so the truck-roll fixes the actual fault — not the closest-looking module.

Residential

Home-Scale Audit

5–15 kW rooftop arrays. 15-minute flight, thermal + RGB pass, written summary. Useful after a hailstorm, during a home sale, or when production has dropped and the installer is non-responsive.

Aircraft

What we use for solar.

  • DJI Matrice 30T (M30T) — primary solar bird. Radiometric thermal 640×512, ±2°C accuracy, 200× hybrid zoom for cell-level detail without altitude drops, IP55 wet-weather rating for marginal PNW windows, 41-min flight, laser rangefinder for elevation profiles on tilted arrays.
  • DJI Matrice 4TD (M4TD) — alternate enterprise platform when extended endurance or NIR illumination is needed. 47-min flight, 5,910 ft laser rangefinder, supplemental capture for utility-scale where coverage area exceeds a single M30T sortie.
  • DJI Mavic 3 Pro — high-resolution RGB pass for cosmetic damage, mounting-hardware survey, inverter-pad documentation, and roof-flashing inspection. Hasselblad 4/3" main camera + 70mm + 168mm telephoto for detail without proximity.

Aircraft selection is a per-mission decision. Most commercial arrays use the M30T as primary capture; large-scale or restricted-airspace projects pair the M30T with the M4TD for redundancy and extended on-station time.

Coverage Area

Where we fly.

Eugene · Springfield · Junction City · Cottage Grove · Corvallis · Albany · Salem · Lane County · Willamette Valley · Oregon Coast

Eugene is home base. KEUG Class D airspace is dialled — LAANC approvals are routine and the cadence is well understood, so projects in or near the Eugene Airport corridor do not require extra lead time. The Willamette Valley diffuse-light pattern in April–June and September–October is what makes thermal solar inspection in this region uniquely clean compared to high-glare desert markets — the work was, in a sense, designed for the climate.

For utility-scale solar farms outside the standard Class G envelope or projects that require beyond-visual-line-of-sight authorization, schedule with 2–3 weeks lead time so the appropriate FAA waivers are in place at flight time.

Capability Examples We Publish About

Field-grounded reading on how this work actually runs.

Three published pieces give the most direct look at the thermal-imaging work and one-person-operation reality behind a Barnard HQ solar mission. Specific industry references are available on request.

Field Guide

What Thermal Imaging Actually Sees and Misses

An honest field guide on Oregon thermal missions — what the M30T finds, what it can't, and how to read radiometric data without overstating the result.
Operator Notes

What 614 Flights Teaches You About Operating in Oregon

Lessons from 614+ logged commercial flights — weather windows, equipment selection, deliverable quality, and what one-person continuity buys a client.
Capture Methodology

Mapping & Capture — What the Numbers Tell You

How structured-grid drone capture turns into deliverables — the same methodology that produces orthomosaic-ready solar coverage at commercial and utility scale.

For complementary capability detail, see Thermal Imaging Inspection — the sibling service page covers the M30T's broader thermal applications across roofs, structures, and infrastructure.

Questions

FAQ

How is a drone solar inspection priced?

Pricing is per-mission and depends on array size, access, and deliverable depth. Residential single-family arrays start at a flat rate; commercial flat-roof and ground-mount arrays scale by megawatt. Annual O&M retainer programs (two scheduled audits per year plus on-call post-storm response) are typically the lowest cost per kilowatt and the most useful for tracking degradation curves. Mission Brief takes 5 minutes and gets you a written quote.

How fast can you respond to a post-storm call?

Same-day or next-day for commercial accounts within Lane County, weather permitting. Insurance-driven post-storm work is usually time-sensitive and we keep the M30T flight-ready for it. Outside Lane County, 24–48 hours is realistic. Wind, rain, and visibility are the gating factors — the M30T is IP55 and rated to 27 mph wind, which is more than most commercial drones can fly in, but PNW storm conditions still shut us down occasionally.

What weather thresholds do you fly in?

The M30T is rated to operate in 27 mph sustained wind and IP55-rated against rain (heavy mist, light rain). Thermal accuracy degrades when the array is wet — water on glass distorts the IR signature — so most thermal solar work is scheduled for dry windows. We fly in a wider range of conditions than most commercial drones can handle, but radiometric accuracy is only as good as the conditions allow. The flight gets rescheduled rather than producing data we don't trust.

What does the deliverable look like?

A written report with array overview map, per-defect photo pairs (radiometric IR + RGB), GPS coordinates per anomaly, severity classification, recommended action, and an editable defect spreadsheet. Raw radiometric TIFFs and original RGB stills are included on request — these preserve the per-pixel temperature data manufacturers need for warranty submissions. Delivery is 3–5 business days standard; rush is next-day. Format is PDF + spreadsheet by default; CSV / GeoJSON / KML export is available for clients integrating into existing GIS or O&M platforms.

What certifications do you operate under?

Active FAA Part 107 Remote Pilot certification. Every flight is logged, weather-checked, and airspace-authorized via LAANC where required. Insurance is in force and proof-of-coverage is sent ahead of every commercial mission. The M30T's most-recent factory thermal calibration date is documented and available on request for warranty / insurance work that requires traceability. Methodology aligns with IEC 62446-3 aerial PV inspection workflow expectations.

Plan your solar inspection mission

Mission Brief takes about five minutes. Send the array size, location, and goal — commissioning baseline, annual audit, post-storm survey, due diligence — and you'll get a written scope and quote within one business day. For active emergencies (storm response, insurance documentation), the contact form is the fastest path to a same-day phone call.

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