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I did question whether it was a particular phase, but they seem to be on parity with one another. (The drop at ~9:30am was the switch-over between inverters.)

As we put in monitoring for other farm equipment, we also included the solar. Production was below the installed 30kW, so we had the panels cleaned (never been done). I've been looking at the traces to see if there is a reason other than cloud, but I think that's all it is. Switched off each...

No daft. Helping agri client understand and optimise their energy production and usage. Pre-existing installation which may need an update. Not wanting to suggest new inverter(s) for no good reason.

We had heavy rain this AM, hence the delay in generation.

Not sure switching off the Samil system has made much of a change (marked with the line). Will leave it for 48 hours and then switch over the inverters.

Your thoughts on the panel issue align with ours - we would expect to see the issue more often. I assume we can switch off the Samil and that would just be it. No need to disconnect? It's typically cloudy and rainy at the moment!

I will try and sort out the DC monitoring and get some traces to then compare DC / AC. Just need to work out how to do that, as it would have to be invasive as opposed to CT-based?

For those interested, the last four days traces with local UK-AIR UV station data shows the first three days of as expected data and then the fourth day with very volatile traces. https://snapshots.raintank.io/dashboard/snapshot/lLbqJAe5tm5SzdtSJjA41QuIjgQfbZX0

What is interesting is that the days that are questionable are where the output seems to be over ~25kW. Could it be one of the inverters being faulty or some panels that become faulty at high output (and possibly temperature)?

Hello forum - first post here. I have a customer with a 30kW installation (8+ years old) with 2 x inverters (1 x SAMILPOWER SolarLake 15000TL and 1 x Solis Solis-15k). Below are some traces from the generation output. On a good day, all looks as expected (although not quite 30kW, despite panels...