Welcome to AePVI

The smart inspection concept for any PV plant worldwide


We examine the quality of photovoltaic systems without dismantling.
Are the modules ok? Were they damaged during assembly? Are the yields too low?
Aerial PV inspection identifies and locates faults precisely.

We combine and automate classic and preventive inspections of solar power plants with image-based methods like thermography, electroluminescence and UV-fluorescence measurements, and with IV-curve recording by day and night, isolation issues detection, serial number scan, and geography data referencing.

To this end we employ tripod- and drone-based sensor systems, providing a cost-effective check-up by systematic sampling or 100% screening. EL measurements offer a comprehensive and exact assessment of faults on cell level and thus represent the tower of strength of the AePVI concept.

Services


Electroluminescence analysis, thermography and combined measurements on-site by spezialised tripod- and UAV-systems

Automated

Inspection by remote-controlled measurement devices and power multiplexers such as AePVISwitch

On-site

Electroluminescence measurement without dismounting and transport of solar modules

100 % Screening

Complete electroluminescence measurements or systematic sampling with specialized UAV- and tripod-systems such as AirLabONE and AirBridgeONE

Combined

Measurements in one step: additional IV-curve-measurements by day and night, or isolation checks

High volume

Electroluminescence measurement and thermography for any PV-plant size worldwide, up to 1,000 images per hour

Images/ videos

Depending on request and failure type, featuring automated image analysis

Our work


Impressions of on-site inspections

Electroluminescence inspections

comprehensive - detailed - clear


Solar panels produce electricity during the day. If connected to a power supply in darkness, however, they emit radiation in the near-infrared light spectrum, which is not visible by the naked eye.

High-resolution electroluminescence (EL) images look similar to x-ray images. Active cells appear bright to grey, while inactive or damaged cells appear dark to black. The grey scale seen in the images allows to determine the cause and the amount of damage already on-site.

With this image-based qualitative measurements, damages caused by mechanical stresses such as transportation, installation, hail, snow can be quickly detected. Moreover deterioration, broken cells, interconnections and defective by-pass diodes can be recognized as well as malfunctioning panels and strings.

The evaluation of the images is automated and uses machine learning to categorise module faults.

Aerial EL testing is the most cost-efficient method currently on the market for the clear and early detection of solar systems affected by potential-induced degradation (PID).

This testing method can furthermore be used to verify the recovery of PID-affected systems. It also enables the reproduction of sytem documentation in case of false or missing string plans.

News


January 2023
EL_VI (1) - Combining ELectroluminescence and HDVI
More info on LinkedIn

December 2022
"If you can't measure it, you can't manage it" (6) – Hail damage detection with EL drone
More info on LinkedIn

November 2022
"If you can't measure it, you can't manage it" (5) – EL drone inspections on thin-film technologies
More info on LinkedIn

November 2022
Electrolumninescence tripod inspection (5) – High volume commissioning test in laboratory quality
More info on LinkedIn

October 2022
Nothing EL_se Matters (3) - Comparison of imaging methods
More info on LinkedIn

August 2022
aepvi.com news (15) - Infrared imaging of photovoltaic modules - a review
More info on LinkedIn

July 2022
Electrolumninescence tripod inspection (4) – High volume commissioning test in laboratory quality
More info on LinkedIn

June 2022
"If you can't measure it, you can't manage it" (4) - Electroluminescence is essential for Quality Assurance/QA of PV power plants
More info on LinkedIn

June 2022
"If you can't measure it, you can't manage it" (3) - Electroluminescence is essential for Quality Assurance/QA of PV power plants
More info on LinkedIn

May 2022
EL review (5) - Different EL sensor platforms for different PV systems
More info on LinkedIn

April 2022
Nothing EL_se Matters (2) - Comparison of imaging methods
More info on LinkedIn

March 2022
EL review (4) - Crack detection with electroluminescence drones – 2018
More info on LinkedIn

Partners


Research funding


1

2

3

What our customers say


Contact us


1

Dr. Jan Schlipf

Managing Director

Software

2

Andreas Fladung

Managing Director

Projects

Get in touch

Send

AePVI

Legal Notice c; c; Privacy Policy

Company

Aerial PV Inspection GmbH
HRB 21551, Aachen

Phone

+49 (0)241 990 3312

Address

Im Johannistal 31a
52064 Aachen
Germany

© 2021