Autel Evo II Dual 640R

Flight guidelines for inspecting solar farms with a Autel Evo II.



The Autel Evo II Dual 640R (FLIR Radiometric) with it’s 640 x 512 resolution FLIR Boson thermal core and 14mm lens can meet the data requirements quickly and efficiently. We are able to support the 640R V1, V2, and Enterprise models. Please note that Raptor Maps does not support the Autel Evo II Dual 640T at this time.



Drone: Autel Evo II Dual 640R
Camera: Built-in
Computer: Smart Controller
Flight Planning Software: Autel Explorer

Type of Inspection

Raptor Overview

Raptor Standard

Raptor Comprehensive

Ideal for rapid drone flights and string-level outages
Ideal for annual preventative maintenance
IEC TS 62446-3 thermography standards for Absolute Temperature Accuracy
Smallest Visible Features
Diode, Hot Spot, and Cell
Diode, Hot Spot, and Cell
Ground Sample Distance
15.0 ± 5.0 cm/pixel
5.5 ± 0.5 cm/pixel
3.0 ± 0.5 cm/pixel
Maximum Speed
30 mph
12 mph
7 mph
Altitude with 14mm Lens
574 ± 190 ft (175.0 ± 58.0 m)
209 ± 18 ft (64.0 ± 5.5 m)
114 ± 18 ft (35.0 ± 5.5 m)


Please upload both the “MAX.jpg” RGB imagery and the “IRX.jpg” IR imagery to the Raptor App.


Sensor Heading

For both IR and RGB inspection-level imagery sets, sensor heading must remain fixed throughout the flight. For example, if flying a fixed-tilt, ground mount site with panels facing south, the sensor should face North throughout the flight. Datasets, where sensor heading alternates with each flight pass (sensor faces North one flight pass and South on the next flight pass), will warrant a reflight.

Image Capture

Front Overlap Ratio: 70%
Side Overlap Ratio: 20%
File Format: RJPG



Note: Obliques / High flys are required as part of the flight. For information about how to correctly fly and take oblique images, please see Capturing Oblique Images.


Data Example

The long edge of the solar row aligns with the long edge of the image.

More to come!