17kW System = 98.4 kWh Production (5.79kWh/kW of Panels)

[SoCalSolarRoof]

Another way to look at it. For every kwh I could time shift from peak to off peak, I save a 30 cents (58 (peak) - 18 cents (off peak)).
The estimated charge life cycle of full 0 to 100% charges (worst case scenario) is 3100. Assuming a high level of degradation resulting in only 80% of the 40KW of 8m 3 powerwalls over it's lifetime, this gives me:

3100*40*0.8*0.3(cents) = $29760 in peak time offset over the estimated life of the product. My cost for all 3 powerwalls after the tax credit is $15170. The price has gone up twice since I ordered last year so it's not quite as attractive now as it was then.

That's a good way to look at it.

Peak vs off peak in winter for SDG&E is only $0.02. In the summer it is $0.20 for my plan. Average that over the year to $0.11, I get less than $10,000 in savings and power walls were going to cost $8k each installed after rebates, and I needed 2 to run the AC. Like I said, I couldn't get the math to work right now, but I'll keep looking at it.

 

[sorka]

Just hit 7 kWh / kw for the first time ever a few days ago.

 

[squashmeister]

Turned on a 15 kW system in Phoenix last week. SE and SW facing panels. Getting 102-105 kW daily for the past few days.

 

[sorka]

My production has been dropping with the temps going up. A few days here in the central valley near 100F.

 

[charlesj]

Turned on a 15 kW system in Phoenix last week. SE and SW facing panels. Getting 102-105 kW daily for the past few days.

That would be kWh, energy.

 

[squashmeister]

That would be kWh, energy.

Duh. Yes of course..

 

[ChicagoSox]

10.2 kWp system in Chicago

 

[charlesj]

10.2 kWp system in Chicago

View attachment 662043

That is a very nice curve. Did you just draw it?

 

[ChicagoSox]

That is a very nice curve. Did you just draw it?

some days you get lucky and no clouds

 

[charlesj]

some days you get lucky and no clouds

And, apparently no shading issues, at least on that day. Unfortunately I have some in the afternoon, trees and a hill. Worse in the winter.

 

[ChicagoSox]

And, apparently no shading issues, at least on that day. Unfortunately I have some in the afternoon, trees and a hill. Worse in the winter.

yeah im lucky all my trees are on the perimeter of my property

 

[jboy210]

And, apparently no shading issues, at least on that day. Unfortunately I have some in the afternoon, trees and a hill. Worse in the winter.

Same here. My 12 kW Solarroof is producing about 46kWh/day now. Drops down to 2 kW by 4 PM due to shading. Still enough to top off powerwalls, provide 97%+ of electricity, and send 23 kWh back to grid.

 

[altspace]

East Coast of Florida today
11.56kW system
Tesla App-> 68.3kWh
SolarEdge App -> 69.06kWh

Can you share daily/weekly average for the last 4-5 months? I'm trying to size my system in Florida

 

[ChicagoSox]

 

[ChicagoSox]

 

[ChicagoSox]

 

[Bitslizer]

View attachment 700160

What is that tracking system? I'm on Naperville just installed 2 weeks ago. This looks sweet!

-

Edit

Nm I see that it's solar edge, I have Tesla inverters

 

[ChicagoSox]

solaredge is what tesla uses

 

[fragchild]

Can you share daily/weekly average for the last 4-5 months? I'm trying to size my system in Florida

Casa Tripod 11.560kW | Monthly

PVOutput.org - share, compare and monitor live solar photovoltaic output data

pvoutput.org

 

[smaster553]

View attachment 700158

Here is my Output.

Location: NJ
Size: 14.28 KW
Install Date: 20th Jan, 2021
PTO Date: 12th Feb, 2021