So even with easily accessible graphs and figures it's almost taken me a week to notice but my production has tanked.
My vmp is at or below rated vmp nowhere near voc so I'm unsure if it's the panels or the inverter. I have a load greater than production so its not normal clipping I had a quick glance over connections and they visually seem fine but it's too hot to stay on the roof for longer than 2 minutes currently, I'll do a better check tonight and disconnect things and go over everything.
The reduction in power seems to be stable which confuses me somewhat any of you smart folks might be able to shed any light on what might be happening?
The inverter is a Powmr POW-HVM2H-12V-N
Panels are Nakita 380w mono
currently outputting 2 amp in good sun nowhere near the 12.5amp Imp
Here's a graph showing the production drop:
![Screenshot_20240805-140754~2.png Screenshot_20240805-140754~2.png](https://diysolarforum.com/data/attachments/234/234077-ec5323233b5e6e206d196069af552290.jpg)
As I said I'll do some further testing and inspection when it cools down, any suggestions other than the obvious to check?
Resistance through the DC breakers/DC SPD, check resistance through the PV cables, check connections, I've ordered some decent mc4 connections but they're unlikely to be here atleast for a few more days.
My vmp is at or below rated vmp nowhere near voc so I'm unsure if it's the panels or the inverter. I have a load greater than production so its not normal clipping I had a quick glance over connections and they visually seem fine but it's too hot to stay on the roof for longer than 2 minutes currently, I'll do a better check tonight and disconnect things and go over everything.
The reduction in power seems to be stable which confuses me somewhat any of you smart folks might be able to shed any light on what might be happening?
The inverter is a Powmr POW-HVM2H-12V-N
Panels are Nakita 380w mono
currently outputting 2 amp in good sun nowhere near the 12.5amp Imp
Here's a graph showing the production drop:
![Screenshot_20240805-140754~2.png Screenshot_20240805-140754~2.png](https://diysolarforum.com/data/attachments/234/234077-ec5323233b5e6e206d196069af552290.jpg)
As I said I'll do some further testing and inspection when it cools down, any suggestions other than the obvious to check?
Resistance through the DC breakers/DC SPD, check resistance through the PV cables, check connections, I've ordered some decent mc4 connections but they're unlikely to be here atleast for a few more days.