Are you a net producer or consumer of electricity?

I consume more electricity than I produce.
No votes
0
I produce more electricity than I consume.
25%
1
It's pretty close - let's call it a net-zero.
75%
3
 
Total votes: 4
User avatar
Marktm
Gold Member
Posts: 350
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737

Re: Are you a net producer or consumer of electricity?

Tue Mar 15, 2016 9:18 am

Rural property with cabin style home supplied by a "friendly" cooperative that sells/buys at the same energy $$s (distribution added). Installed a 4000 watt PV system about 20 months ago. Producing about 80% of usage. Last months bill was $1 including TT&L.

Off-grid adaptable with minor changes with a limited battery bank (basically golf cart + spare set). Thinking about adding another ~3000 watts for the Leaf in the future - would do it now if "off-grid" technology was available for the Leaf's battery. Seems simply a matter of time for PowerWall, HEMS, etc to put the puzzle pieces together - we'll see.
2012 Leaf SL; 36,000 miles. Battery replaced November 1st, 2016.
Rural cabin with 6750 watts Grid tied PV. Off-grid solar Leaf charging capable (level II).

User avatar
RegGuheert
Posts: 5583
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Are you a net producer or consumer of electricity?

Sun Apr 03, 2016 11:40 am

RegGuheert wrote:February 3:

Feb 3, 2015 meter reading: 12,656 kWh
Feb 3, 2016 meter reading: 14,225 kWh
Grid consumption during past 12 months: 1569 kWh

PV production from Feb 2015 through Jan 2016: 18,361 kWh

Total electricity consumption: 19,930 kWh

Fraction provided by PV: 92%
RegGuheert wrote:March 3:

Mar 3, 2015 meter reading: 14,413 kWh
Mar 3, 2016 meter reading: 14,763 kWh
Net grid consumption during past 12 months: 350 kWh

PV production from Mar 2015 through Feb 2016: 18,192 kWh

Total electricity consumption: 18,542 kWh

Fraction provided by PV: 98%
April 3:

Apr 3, 2015 meter reading: 14,729 kWh
Apr 3, 2016 meter reading: 14,598 kWh
Net grid consumption during past 12 months: -131 kWh

PV production from Apr 2015 through Mar 2016: 18,143 kWh

Total electricity consumption: 18,012 kWh

Fraction provided by PV: 100.7%

Woohoo! That's the first time that we have produced more electricity in any 12-month period than we have consumed.

Hopefully we can maintain or increase this difference going forward. Last year at this time, our heat-pump water heater was consuming about 300 kWh extra each month due to being low on refrigerant. That problem was not fixed until about June 15, so there may be an extra 700 kWh in the energy budget there. Also, we had a very cloudy June last year, which may account for another 500 kWh. Before we started consuming electricity last fall, we had banked about 3 MWh of electricity. I'm hopeful that we will bank 4 MWh or more before winter this year. It seems we are off to a good start, since we are already 170 kWh below the March 3 reading.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

2k1Toaster
Posts: 413
Joined: Mon Nov 18, 2013 5:45 pm
Delivery Date: 12 Nov 2013
Leaf Number: 420903

Re: Are you a net producer or consumer of electricity?

Sun Apr 03, 2016 7:21 pm

In March, we produced 1.28MWh via solar and consumed 2.61MWh, consuming 1.33MWh net.
2013 Nissan Leaf SV with every option
2013 Prius C Package 4
2012 Lexus RX450h
2006 Prius Gen II, pIV
2005 Honda Civic Hybrid
2001 Honda Civic EX
1997 Honda Prelude SH
1981 DeLorean DMC12
and more...

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