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First day solar production(12/5)

arnolddeleon

Supporting Member
Jul 21, 2012
842
909
SF Bay Area
Seems roughly right. I'm assuming you mean an 8.16 kW system. A very rough estimate on production is take the peak number and multiply by 4 or 5 to get an estimate of the *average* daily production, so 32 to 40 kWh/day. So you're probably going to up around 22 kWh for the today. But it is winter so production will be below average. The shape of the graph makes me think it's mostly a clear day. Lots and lots rounding and assuming but I believe roughly right.
 

zƬesla

Member
Apr 16, 2020
378
119
US-NH
I had a third of a kWh today! However we’re on track to get a foot of snow. Wish we could have the snow to play in AND solar production.
 

RoBoRaT

Zero Farts Given!
Nov 22, 2018
1,388
1,228
NorthSoCal
I know there are a few more hours of sunlight left in SO CAL and production is around 20 kwh for a 24 panel/8.16 kwh system.. does this seem right?

imgur.com

In SoCal (Riverside) at 2:40 PM today West facing 11.7 kW panels.
A68D1731-7E0A-49BE-84B7-6457AEBC70A4.png
 

holeydonut

Supporting Member
Jun 27, 2020
1,866
1,253
East Bay NorCal
I know there are a few more hours of sunlight left in SO CAL and production is around 20 kwh for a 24 panel/8.16 kwh system.. does this seem right?

imgur.com


What was your total production for the day?

For reference, I was testing my 23 panel 7.9 kWp AC system today for the first time in NorCal, and it generated 21.21 kWh according to Enphase's tracking tools and 19.8 kWh according to Tesla's software. But 2 of my panels aren't working.

All panels facing 135 azimuth with about 30 degree tilt.

Plus we had a lot of cloud-cover in the afternoon so my production fell off a cliff after about 1pm Pacific.
 
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jedmo

Member
Sep 9, 2020
115
49
Northern California
I'm also in NorCal (Rocklin), I have a 7.48kWh 22 panel system and generated 20kWh today. I also experienced the cloud-cover in the afternoon around the same time as holeydonut.

I have 9 panels facing south east, 12 facing south and 3 facing south west.
 

SMAlset

Well-Known Member
Mar 4, 2017
9,092
9,840
SF Bay Area
@mnsweeps, same solar system size as you. 3PWs, not sure your PW count, but we’re in SF Bay area. Yesterday started out nicely but clouds moved in. Here’s my comparison charts for then.

E76314FE-7E47-4BE7-AF4F-98F81BE09CD8.png 2C472E13-492A-45DB-94D3-1D851C7DF4ED.png

Today’s been foggy in the morning and overcast conditions predicted for rest of day, so not much sun getting through. Won’t replenish PWs today. Rest of week from Dark Skies says sunny. Expect to top off PWs by noon tomorrow and start charging my car then. PWs at 74% now.

November (pretty sunny month) was our first full month of using solar. For anyone looking to compare our system/area to yours, here’s our charts for November and so far for December.

I’m assuming the small percentage “To Grid” each day is a normal thing?

9F84659D-91FD-4098-A26A-BAFF161B7391.png

03E15DE2-AC64-4F9D-858C-781699FC4E23.png


72B9B49A-4F1C-411D-8E5E-211B789581AF.png

0AD5D055-B7EC-4630-A379-3BDE7713874A.png
 
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mnsweeps

Member
Aug 3, 2019
555
135
Los Angeles
So today the 2 PWs charged up to 99% from solar and went back to STANDBY mode...and excess solar started getting fed to the grid. This is the expected behavior and really happy how its working.

My question is should the PWs stop charging at 99% or should it go all the way to 100%. I am assuming its intentional so PWs can recalibrate the numbers and keeps the 1% buffer for it?

View media item 122132
View media item 122131
(moderator note: combined this with your other thread on your system startup).
 

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