My Nissan Leaf Forum

If you want to see generation data presented really well, try:

http://livesolar.net/sumpage.htm

Look at (click on) the Williams Residence, and then run the cursor across the day totals to "instantly" see each day's production profile. Really slick!

garygid,

I did have an 8000 installed for future growth. I currently have 28 panels in 2 strings of 14 each. There is plenty of room left on the roof and on the inverter for another string of 14. I could even go a little further and add another 2 panels to each string maxing out the inverter and rooftop with 48 panels, however the 6 panels would recieve significant evening shade from the chimney.

I really need to get a handle on my usage before the leaf and after. As of now I am only monitoring production not usage. I am planning to install the energy detective soon, maybe Santa has one with my name on it. Also I really do not understand the new feed rules for excess power generation and all the TOU rates.

Panel: 22 - Kyocera KC125G
Inverter: SMA SWR 2500 USBD
AC nameplate rating: 2.3 kW

SCE Authorization to commence parallel operation: 9/16/2003
E-total(12/17/2010): 30,168 kWh
Average/year: 4,161 kWh

Just thought I'd bump this. I've been diligently logging my daily production all week, if you'd be so kind as to check back on the first post, but today is going to be the first cloudless day since I turned the system on, and I'm going to be banking some hardcore wattage today, my friends. Oh, yeah!

Michael, it's going to be sunny in Tucson today too. This would be a good day for use to compare our systems: our with 27 215 W SunPower panels and you with 27 230 W SunPower panels, I believe. Yesterday we produced 29 kWh with some cloudy periods and on Wednesday, our lowest ever - 3 kWh, with lots of clouds and rain. I'll get back to you Sunday with today's production total so we can compare the two systems.

Sounds good. I still wish we had the same panels though. Sigh.

I have 24 215 Sunpower panels and would like to compare

Bearing in mind that, though we're geographically close, very local cloud conditions will play havoc with comparisons, here's mine, Michael:

Dec 16: 13
Dec 17: 3
Dec 18: 4
Dec 19: 3
Dec 20: 2
Dec 21: 3
Dec 22: 10
Dec 23: 10

EDITed for mwalsh's records:

Dec 24: 18 sunny
Dec 25: 13 foggy morning, some sun later
Dec 26: 11 variable clouds, spots of sun
Dec 27: 18 sunny, cool

Been cloudy/rainy most of the week

Dec 16: 3.21
Dec 17: 13.62
Dec 18: 19.52
Dec 19: 19.62
Dec 20: 11.42
Dec 21: 3.92
Dec 22: 7.98
Dec 23: 11.38
Dec 24: 23.00 - Mostly Sunny today.

Tucson, AZ - 27 215 W SunPower panels at 25 degrees, direction is due south

December 16 - 12.68 kWh -- cloudy and rain in morning
December 17 - 27.12 kWh -- mostly sunny
December 18 - 25.47 kWh
December 19 - 25.85 kWh -- some clouds
December 20 - 18.86 kWh -- scattered clouds
December 21 - 12.25 kWh -- clouds and rain in morning
December 22 - 3.03 kWh -- heavy cloud and rain all day, lowest production since installation Nov.1
December 23 - 28.97 kWh -- sunny with a few clouds
December 24 - 29.97 kWh -- completely sunny day - A great production day!!