A companion video to the microinverter I made recently.

Microinverter video:
   • Microinverters - The Future of Home S...  

Voltage and current explained video:
   • AC / DC: What’s the difference? Volta...  

Interactive utility to show the effect of shading on a module and an array:
https://www.pveducation.org/pvcdrom/m...

Solar Panel Shading (Part 1): Are Optimisers and Micro inverters Worth It?:
   • Solar Panel Shading (Part 1): Are Opt...  

Solar Panel Shading (Part 2): More on Optimisers and Micro inverters:
   • Solar Panel Shading (Part 2): More on...  

MC Electricals’ optimiser review:
https://www.mcelectrical.com.au/solar...

MC Electrical Tigo Optimiser Recall:
https://www.mcelectrical.com.au/tigo-...

FLIR Infra-red viewer
https://www.flir.co.uk

Chapters:

0:00 Intro
1:56 Shading
9:08 Accumulation of Dirt
9:52 Panel Degradation
10:38 Panel Failure
11:00 Monitoring
12:58 Safety
13:53 Reliability
18:00 Summary

Corrections:

6:34 I over-simplified how the optimiser manages the current. In reality, the inverter first maximises the power from the panel by adjusting the voltage via MPPT, then performs a DC-DC conversion, decreasing the voltage to bring the current in line with the rest of the string.

7:45 Actually, some of the bypass diodes will only kick in if there is a difference in shading across that particular panel. If there is shading across the whole of the panel (as in the diagram) the optimiser should still be able to manage that.

14:17 Oops - the total production should of course be 3.6kW, not 4.8kW.

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Whilst every effort is made to ensure the accuracy of the content in this video, no warranty for that content is provided, nor should it be implied. Viewers acting on the content, do so at their own risk.

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