User avatar
JeremyW
Posts: 1541
Joined: Sun Nov 13, 2011 12:53 am
Delivery Date: 23 Jun 2012
Leaf Number: 19136
Location: San Gabriel, CA

How big is your system?

Wed Dec 07, 2011 9:16 pm

I'm curious to see what the name plate is on some of these solar systems you guys have. Looking through the various posts on utilities and how you guys getting surplus checks and credits even with EV charging leads me to believe there are some hefty systems out there! :P Include solar hot water if you have that as well.
Former 2012 SL leasee 6/23/12 - 9/23/15
Former Fit EV leasee.
Now driving Spark EV and Model 3.

Hedge74
Posts: 40
Joined: Wed Jul 27, 2011 8:19 pm
Delivery Date: 27 Jul 2011

Re: How big is your system?

Thu Dec 08, 2011 12:36 am

In most states when you put electricty back onto the grid your utility company has to credit/pay you the same amount that they would charge you. The Surplus Comes from the TOU(Time of Use) Rates. There are differences in the rates for Peak and Non-peak hours of use. Peak Hours generally run from mid/late morning to evening on weekdays, non-peak Hours are evenings through early morning on weekdays and usually include weekends, actual times vary per plan specifics. The difference in these rates can be where small amount of excess solar generation during peak hours can offset most, if not all and a little extra, of the non-peak usage for that day.


I am Currently looking into getting a PV system, but for the size of my house and the location in TX to Offset total product at fixed rates I would need a 12KW-14KW system. That is quite a big and expensive system, i'm not even sure it would fit on the house. However, If I can get ToU Rates and cut my energy usaged during the peak hours I could get by with a 8KW-9KW system based on the differencials of the rates.
Last edited by Hedge74 on Thu Dec 08, 2011 12:46 am, edited 1 time in total.

User avatar
Boomer23
Posts: 3550
Joined: Sun May 23, 2010 9:57 pm
Delivery Date: 30 Mar 2011
Location: Orange County, CA

Re: How big is your system?

Thu Dec 08, 2011 12:46 am

Mine is 5.16 kW DC. Twenty-four Sunpower panels of 215 Watts each. And Hedge is right, the credits come from TOU rates on a single meter.
2018 Tesla Model 3 Long Range RWD
2017 Chevy Bolt EV Premier Kinetic Blue
Blog: http://drivingelectric.blogspot.com" onclick="window.open(this.href);return false;

User avatar
TickTock
Posts: 1701
Joined: Sat Jun 04, 2011 10:30 pm
Delivery Date: 31 May 2011
Leaf Number: 3626
Location: Queen Creek, Arizona
Contact: Website

Re: How big is your system?

Thu Dec 08, 2011 6:15 am

10.8kW

User avatar
keydiver
Posts: 1080
Joined: Mon Sep 05, 2011 1:04 pm
Delivery Date: 08 Dec 2011
Leaf Number: 16484
Location: Hobe Sound, Florida
Contact: Website

Re: How big is your system?

Thu Dec 08, 2011 8:53 pm

The combined total of my 2 systems is about 10kw. I also have solar hot water and a solar pool heater.
2012 Glacier Pearl SL - Delivered December 8, 2011
10kW Solar PV for recharging!
2006 Prius with Hymotion 5kWh PHEV upgrade
Tesla 70D | Titanium Metallic | Matte Obeche Wood Décor| All Glass Panoramic Roof
Tesla Model 3 Pre-Ordered!

Yanquetino
Posts: 478
Joined: Tue May 11, 2010 7:47 am

Re: How big is your system?

Thu Dec 08, 2011 9:25 pm

My solar array is 8,280 watts (230 x 36 panels). You can see on its web page how much electricity I am generating and consuming, and how many miles I estimate I could drive on the surplus kWh produced.

I am NOT on a TOU schedule at present. In my area to qualify for that lower rate, you must pull 80% of your daily kWh from the grid between 8:00 PM at night and 1:00 PM the following afternoon. I think that, given the kWhs my array produces in the afternoon, we could qualify for that TOU schedule. However... the utility pays me for any surplus at the same rate that they charge me for what I pull from the grid. Therefore, if I went on TOU, and still produced a surplus, they would pay me LESS than what they are paying me now!

We'll see if that changes when I finally take delivery of my Leaf.

shay
Posts: 217
Joined: Tue Aug 24, 2010 10:00 am
Delivery Date: 04 Jun 2011
Leaf Number: 3285
Location: Dallas, TX

Re: How big is your system?

Fri Dec 09, 2011 11:16 am

keydiver wrote:The combined total of my 2 systems is about 10kw. I also have solar hot water and a solar pool heater.
How much area does your 2 systems and pool heater take up

User avatar
Kataphn
Posts: 753
Joined: Thu Jun 03, 2010 10:57 am
Delivery Date: 13 Jun 2013
Location: Los Angeles, CA

Re: How big is your system?

Fri Dec 09, 2011 2:12 pm

2.8. 12 sun power panels. 2 br 1bath house. No pool. No a/c.. But we do have a leaf!
Delivered: May 3, 2011
VIN: 1467 made 3-7-11
SL, Blue, eTec trim, EV project Blink
[purchased] as of 11-1-13: 25,000: 11 bars
Also have a PiP

kovalb
Posts: 373
Joined: Tue Jun 28, 2011 12:37 pm
Delivery Date: 09 Apr 2014
Location: Phoenix

Re: How big is your system?

Sat Dec 10, 2011 8:28 am

I have a 5.04kW system that was installed by American Solar. It uses 24 Kyocera panels and a Fronius IG Plus inverter. Both are top quality. Living in Phoenix, with our heat, that is very important. The system only provides for about half of our consumption (all electric 3100 sq ft house) but it was the biggest system SRP (our electric utility) would provide incentive money for. We also replaced our kitchen appliances for all latest Energy Star rated, and re-did the roof including a radiant barrier under the tiles. Those helped drop our consumption quite a bit, I estimate about 10% or more.
Had six Nissan LEAFs in five years. Hope to get another.
Retired Nissan Employee (NTCNA-AZ). Opinions expressed here are my own.

User avatar
TickTock
Posts: 1701
Joined: Sat Jun 04, 2011 10:30 pm
Delivery Date: 31 May 2011
Leaf Number: 3626
Location: Queen Creek, Arizona
Contact: Website

Re: How big is your system?

Sat Dec 10, 2011 11:44 am

Yeah. I got mine in before they imposed that limit and were still paying $3/kw incentive. But the panels were a lot more expensive back then, too. I understand why they reduced the incentive as the install costs dropped, but I wonder why they limited the size. My 10.8kw system only covers 80% of my bill.

Return to “Solar”