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Aerial Thermography Ops — Drones

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Solar PV Inspection Drone Flight Guidelines

Solar PV Inspection Drone Flight Guidelines

Solar PV Inspection Drone Flight Guidelines

Solar PV Inspection Drone Flight Guidelines

Solar PV Inspection Drone Flight Guidelines

Solar PV Inspection Drone Flight Guidelines

Drone-based aerial thermography flight guidelines to meet data requirements.

Drone-based aerial thermography flight guidelines to meet data requirements.

Drone-based aerial thermography flight guidelines to meet data requirements.

Drone-based aerial thermography flight guidelines to meet data requirements.

Drone-based aerial thermography flight guidelines to meet data requirements.

Drone Terminology + Acronym Glossary

Pre-Flight Checklist (download it here):

  1. All inspection data must be captured during ≥600 W/m2 POA (plane-of-array) irradiance

  2. Do not capture data within 120 minutes of local sunrise/sunset

  3. For DJI drones, make sure UHR is turned off (This ensures IR resolution is set to 640x512)

  4. Site(s) must be energized during inspection in order to detect anomalies

  5. Capture “Oblique” images in addition to inspection-level data

  6. Use mobile phone to take a photo of your pyranometer reading at approximate POA as proof of sufficient irradiance - Include this when uploading inspection data, find more detail here


Inspection Type

Raptor Overview

Raptor Standard

Raptor Comprehensive 

Description

Ideal for rapid drone flights and string-level outages

Ideal for annual preventative maintenance

IEC TS 62466-3 thermography standards for Absolute Temperature Accuracy

Visible Features

Modules

Diode, Hot Spot, and Cell

Diode, Hot Spot, and Cell (Improved Accuracy)


Recommended Drones

(2X data-capture rates compared to other supported drones)

DJI

Mavic 3 Thermal (M3T)

DJI

Mavic 4 Thermal (M4T) guidelines to come

Other Supported Drones:

DJI

M300 and M350 (H20T orr H30T)

DJI

M30T

DJI

M2EA (Mavic 2 Enterprise Advanced)

DJI

M200 (XT2)

Skydio

X10


Flight Planning Walkthrough

Aircraft Make

Link

DJI 

Skydio 

Coming Soon


Supported drones must support a pixel resolution of 640 x 512 or higher. 
Ask us about any emerging supported hardware options via
support@raptormaps.com


Flight Path + Heading

Flight planning overlap should be based on IR Imagery

  • Front Overlap Ratio: 65%

  • Side Overlap Ratio: 35%



Ensure rows are horizontal in each image and the heading should remain consistent throughout the flight as shown above.

To avoid data-gaps and the need to re-fly, establish FOV using IR sensor. RGB sensors are wider than IR, so if RGB is used as a reference when mission planning, modules are cut-off in the imagery.

Same image in RGB and IR as an example here:

Note that some modules are not fully visible in IR - This will require re-flight.


Gimbal Pitch

Perpendicular to plane-of-array as shown here


Trackers

If you are flying a site with trackers, factor in the height of the trackers when calculating the correct altitude. This will ensure sufficient overlap.

During flight, monitor the angle of the panels as it changes over the course of the day.

As the angle changes, adjust the gimbal to continue capturing a full view of the modules.


Verifying and Uploading Data to Inspection Upload Link

Each inspection order has an associated data-upload link. Inspection data must be uploaded here to be processed

  • Copy/Paste this link into a new browser tab

  • Select images to be uploaded or click-drag images into the uploader

It’s important to verify data from the field. If you’re missing data, you can refly immediately and save yourself a trip back to the site.

You’ll want to check and make sure that your flight plan provided 80/20 overlap and completely covered the site.

Using your Upload Link, drag your data into the window to see the flight path covering the solar site. Check to make sure you haven’t missed any rows.

Note that verification uses very little bandwidth, so you can verify even when you only have hotspot connectivity.

© 2025 Raptor Maps, Inc.

444 Somerville Ave.
Somerville, MA 02143

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© 2025 Raptor Maps, Inc.

444 Somerville Ave.
Somerville, MA 02143

Stay Up to Date

Subscribe to our newsletter and stay informed about innovations in solar asset optimization, deploying robotics for solar, our research and testing with OEMs, the latest in our product development, and more.

© 2025 Raptor Maps, Inc.

444 Somerville Ave.
Somerville, MA 02143

Stay Up to Date

Subscribe to our newsletter and stay informed about innovations in solar asset optimization, deploying robotics for solar, our research and testing with OEMs, the latest in our product development, and more.

© 2025 Raptor Maps, Inc.

444 Somerville Ave.
Somerville, MA 02143

Stay Up to Date

Subscribe to our newsletter and stay informed about innovations in solar asset optimization, deploying robotics for solar, our research and testing with OEMs, the latest in our product development, and more.

© 2025 Raptor Maps, Inc.

444 Somerville Ave.
Somerville, MA 02143

Stay Up to Date

Subscribe to our newsletter and stay informed about innovations in solar asset optimization, deploying robotics for solar, our research and testing with OEMs, the latest in our product development, and more.