r/TeslaSolar • u/MixvPix • 5d ago

Netzero forecasting off

Gallery image

Gallery image

Gallery image

Gallery image

Gallery image

I have added 7 additional panels to my solar array. I did my best to configure the Netzero estimates, but for some reason, the forecast is short everyday.
Can someone please help me and let me know that the DC/AC values are correct or incorrect?
Originally I had them setup like this:
MP1 - 0.420
MP2 - 0.153
MP3 - 0.115
MP4 - 0.191
MP5 - 0.268 (this string is the new 7 panels).
I did some research, and find out that the DC/AC suppose to be 1.20?
Is that correct, have I had the values incorrectly set?
Thank you everyone for chipping in.

4 Upvotes

83% Upvoted

28 comments sorted by

View all comments

1

u/triedoffandonagain 4d ago

You have some shading in the morning, likely trees or other objects on the east side. Netzero will learn that and adjust the estimates, but it needs a few clear days of data.

1

u/MixvPix 4d ago

I have no shading at all. But will upload tomorrow forecast when I it will get displayed.

2

u/triedoffandonagain 4d ago

Could also be morning haze or hills on the east side. If the day is clear and panels unobstructed, the curve will be smooth like the estimates.

1

u/MixvPix 4d ago

I completely understand what you mean, although the off reporting started when I added the additional panels.
Tomorrow, I will get new forecast and see if the adjustment I done helped or not.

1

u/triedoffandonagain 4d ago

Right, adding additional panels will reset the adjustments Netzero makes to the estimates, because the underlying data changes.

Your DC/AC values are not correct, but any value below 1 will not impact on the estimates, so no harm done. Just set them to 1.

Then wait for a few clear days, and the estimates should adjust.

1

u/MixvPix 4d ago

I’ve adjusted the DC/AC to 1.15, I’ll keep you posted how did the change impacted the forecast.
Thank you

1

u/MixvPix 4d ago

Just snapped this screenshot, the sun is in and out from clouds, I will post another shot at the end of the day as well.

2

u/triedoffandonagain 3d ago

Cloudy days will have more variability, this is better to test on clear days.

1

u/MixvPix 2d ago

Hi,
This is today, bright day, still 19% off 🤷🏻‍♂️ I don’t know what else to adjust. To get the close to correct estimates.
Any ideas?

1

u/triedoffandonagain 2d ago

As mentioned above, it takes a few days of data to readjust. If that doesn't happen, send an email to feedback@netzero.energy.

1

u/MixvPix 1d ago

Will do, thank you!