Sharing an interesting power curve

[BryceFreeman]

scrambler


Sure.

eclipse-1.png

My house was about 85%~86% in eclipse (I went to Goliad, TX to see the full eclipse)

2024 Total is estimated to be 94% (again will travel out to see)

Lol thank you, never think of eclipse before

[scrambler]

OK, you got me

[GoingElectric]

Can't guess the reason... so when will you reveal the answer?

scrambler


Sure.

eclipse-1.png

My house was about 85%~86% in eclipse (I went to Goliad, TX to see the full eclipse)

2024 Total is estimated to be 94% (again will travel out to see)

[BryceFreeman]

Can't guess the reason... so when will you reveal the answer?

[GoingElectric]

A number of things could be at play if the inverter is throttling back during sunny cloudless days, and assuming no shading events other than cloud was involved.

I had a similar recurring issue on my array, and after installing monitoring and plotting everything for month, I finally discovered the rule 21 of my inverter was messed up, and was being triggered 4 volts too early. Unfortunately in my area, because there are many solar installations, on clear sunny days, the grid Voltage can rise above 252V, and because the rule 21 was activated too early, it was being triggered and causing the inverter to throttle down production by almost 50%.

But other issues can be at play, so monitoring is going to be necessary to figure out if / what is going on...

Make no assumptions.

But for sure is was a miraculously cloud free day where my house is.

It is interesting to read about Rule 21. Will keep that in mind if I see an unexplained drop.

[scrambler]

A number of things could be at play if the inverter is throttling back during sunny cloudless days, and assuming no shading events other than cloud was involved.

I had a similar recurring issue on my array, and after installing monitoring and plotting everything for month, I finally discovered the rule 21 of my inverter was messed up, and was being triggered 4 volts too early. Unfortunately in my area, because there are many solar installations, on clear sunny days, the grid Voltage can rise above 252V, and because the rule 21 was activated too early, it was being triggered and causing the inverter to throttle down production by almost 50%.

But other issues can be at play, so monitoring is going to be necessary to figure out if / what is going on...

[GoingElectric]

This happened on a cloudless day.
Quite interesting!
Can you guess why?
Intersting production curve 14Oct2023.png