User avatar
dgpcolorado
Posts: 2971
Joined: Sat Aug 20, 2011 1:56 pm
Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: Our solar production

Fri Jul 03, 2015 4:19 pm

June was a bit below average since the wet May weather continued through the first week, before the usual warm, dry weather kicked in. Then monsoon season started a bit early making for some cloudy weather the last few days.

Code: Select all

Results for June for the last seven years:
                Old panels   Old+New panels
               (700 Watts)   (2170 Watts)
June 2015         117 kWh       333 kWh
June 2014         122 kWh       349 kWh
June 2013         124 kWh       356 kWh
June 2012         120 kWh
June 2011         134 kWh
June 2010         117 kWh
June 2009         101 kWh

Annual production:
2015      1663 kWh (so far)
2014      3217 kWh (= an average of 4.06 hours x panel wattage per day)
2013      3327 kWh (4.20 hours x panel wattage per day)
2012      1409 kWh
2011      1203 kWh (4.71 hours x panel wattage per day)
2010      1132 kWh (4.43 hours x panel wattage per day)
2009      1165 kWh (4.56 hours x panel wattage per day)
2008       232 kWh (partial year)
Blue 2012 SV Dec 2011 to Feb 2016
CPO 2014 Tesla S60 Mar 2016
One car, no ICE, at last!
Tesla Referral Code

User avatar
RegGuheert
Posts: 5617
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Our solar production

Sat Jul 04, 2015 11:57 am

June 2015 was rainy and hot resulting in lower PV production and higher consumption for air conditioning. PV production was almost 500 kWh lower than May and the utility meter only went backward approximately 100 kWh last month. Production was just slightly higher than last June, which was the month just prior to the addition of 29% more DC production capacity.

The new additional capacity has now been in place for one year, with production during that time coming in at approximately 18.2 MWh.

Below are all our numbers for 2011, 2012, 2013, 2014 and 2015 along with the PVWatts predictions for the old array (PVW42: good through June 2014) and the new array (PVW54: good starting with July 2014):

Code: Select all

Month    PVW42   2011   2012   2013   2014   2015  PVW54  Units
---------------------------------------------------------------
January    916    669    869    822    857   1006   1229   kWh
February   702    158   1085    866   1054   1361    915   kWh
March      965      0   1350   1152   1113   1547   1240   kWh
April     1465      0   1465   1495   1338   1737   1899   kWh
May       1583      0   1477   1491   1457   2069   2074   kWh
June      1268      0   1478   1368   1521   1585   1666   kWh
July      1448    595   1395   1406   1880          1902   kWh
August    1442   1347   1447   1333   1794          1875   kWh
September 1209    910   1295   1414   1577          1555   kWh
October   1304    931    981   1034   1258          1713   kWh
November   864    949   1041   1018   1227          1154   kWh
December   820    803    612    669    812          1108   kWh
---------------------------------------------------------------
Totals   13986   6362  14495  14068  15888   9305  18330   kWh
Since installation, our system has produced 60.118 MWh as of the end of June 2015.

Net grid consumption since July 2011 (when PV was turned on permanently) has been 13.3 MWh. Solar production during this period was 59.3 MWh. Total consumption equals 72.6 MWh. Solar has accounted for 82% of that total.
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
SilverLeaf
Posts: 418
Joined: Tue Apr 20, 2010 4:55 pm
Delivery Date: 17 Apr 2011
Leaf Number: 000516
Location: Scottsdale, AZ

Re: Our solar production

Tue Jul 07, 2015 12:58 pm

Production from my 33 230wDC SunPower Panels via Sunnyboy (SMA) 7000US Inverter (7.59kW DC)
Pre-Solar Average Monthly Electric Bil - $250, prior to recent price increases

2015 AC Production/Electric Bill (APS)
Jan 863 ---------- $76.96 (old rate plan)
Feb 1060 -------- $9.90 (new rate plan)
Mar 1333 ------- $9.30
April 1441 ------ $9.30
May 1447 ------- $9.62
Jun 1329 -------- $9.93

2014 AC Production
Jan 1048
Feb 977
Mar 1347
Apr 1438
May 1476
Jun 1413
Jul 1346
Aug 1368
Sep 1242
Oct 1193
Nov 1053
Dec 844

2013 AC Production
Jan 910
Feb 1105
Mar 1328
Apr 1444
May 1474
Jun 1447
Jul 1284
Aug 1230
Sep 1280
Oct 1050
Nov 955
Dec 1005

2012 AC Production
Mar 1228
Apr 1217
May 1416
Jun 1325
Jul 1189
Aug 1168
Sep 1118
Oct 603
Nov 970
Dec 851

Link to my Solar Production - http://pvpwrev.webs.com/
Reserved 4/20/2010
Ordered 9/2/2010
Arrived 4/17/2011
Installed 5.52 kW PV 2/2011
Upgraded PV to 6.9 kW 2/2012
Upgraded PV to 7.59 kW 2/2013

JasonA
Posts: 569
Joined: Thu May 09, 2013 10:16 am
Delivery Date: 04 May 2013
Location: Sylmar, CA

Re: Our solar production

Sun Jul 12, 2015 7:44 am

dgpcolorado wrote:I pretty much nailed my output when I expanded my array after getting the LEAF. The last two years of production have been 104% and 103% of the electricity needed to fuel my LEAF and run my house. Our power co-op limits net-metering to 120% of usage. More than that and they want to negotiate a wholesale power purchase agreement.
Yeah, I might as well use it up, burn it up.. charge other EV'ers up, etc then give it back if they don't want to roll it up or pay it out on the water/trash side.

I just cleaned the panels and WOW! :shock: probably powering the whole block now :lol:

Interesting PDF everyone here should check out if you're an energy mongol.

http://saudi-sia.com/wp-content/uploads/2013/05/9-Lessons-learnt-from-PV-power-plants-in-the-US-desert-v5.pdf

If wash (with water and brush) a few panels and then just blast off with high-pressure the rest in the evening..... then the next morning and throughout the day watch on the Enphase what those panels do...

The brushed panels put out more compared to the sprayed off ones.

I like power... and data and metrics! :mrgreen:
2012 10kw Dual LQ cooled Brusa powered Leaf "Astro"
13kw Enphase System,SolarWorld Panels, QuickMountPV- ALL USA!!
2014 Rav4 "SuperRav"with JdeMO (CHAdeMO)
2015 MS-70D

User avatar
dgpcolorado
Posts: 2971
Joined: Sat Aug 20, 2011 1:56 pm
Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: Our solar production

Sun Jul 12, 2015 10:28 am

JasonA wrote:...If wash (with water and brush) a few panels and then just blast off with high-pressure the rest in the evening..... then the next morning and throughout the day watch on the Enphase what those panels do...

The brushed panels put out more compared to the sprayed off ones.

I like power... and data and metrics! :mrgreen:
How interesting. My panels are at 15º now and I just "wash" them with the monsoon season rains. Wet, spring-like, snow is also good for washing panels. But I wouldn't have guessed that spraying isn't as good as wash + brush. (On the rare occasions I wash my panels I also dry them with a towel because I have hard water here.)
Blue 2012 SV Dec 2011 to Feb 2016
CPO 2014 Tesla S60 Mar 2016
One car, no ICE, at last!
Tesla Referral Code

JasonA
Posts: 569
Joined: Thu May 09, 2013 10:16 am
Delivery Date: 04 May 2013
Location: Sylmar, CA

Re: Our solar production

Sun Jul 12, 2015 11:50 am

I do the same and we also have hard water but once I wash down the panels, I use this as a final rinse.
http://www.amazon.com/Windex-Outdoor-Glass-Patio-Cleaner/dp/B000V9QN1A

And the panels are spotless. If you have R/O water and a way to pressurize or siphon, you can do that (I've seen that on the solartalk and PVtalk forums) but that's too much work and fuss.

This way is easier :D

Lowes and HD have it cheaper..
http://www.homedepot.com/p/Windex-32-oz-Outdoor-Glass-Cleaner-040132/202872010
http://www.lowes.com/pd_33146-1260-40132_0__?productId=3126451

P.S. I have tried using this as a main rinse with dirty panels... let it foam... then rinse with decent results.. gets most of the dirt off and of course... no spots...

but nothing beats physical scrubbing!
2012 10kw Dual LQ cooled Brusa powered Leaf "Astro"
13kw Enphase System,SolarWorld Panels, QuickMountPV- ALL USA!!
2014 Rav4 "SuperRav"with JdeMO (CHAdeMO)
2015 MS-70D

User avatar
SilverLeaf
Posts: 418
Joined: Tue Apr 20, 2010 4:55 pm
Delivery Date: 17 Apr 2011
Leaf Number: 000516
Location: Scottsdale, AZ

Re: Our solar production

Sat Aug 01, 2015 9:47 am

Production from my 33 230wDC SunPower Panels via Sunnyboy (SMA) 7000US Inverter (7.59kW DC)
Pre-Solar Average Monthly Electric Bil - $250, prior to recent price increases

2015 AC Production/Electric Bill (APS)
Jan 863 ---------- $76.96 (old rate plan)
Feb 1060 -------- $9.90 (new rate plan)
Mar 1333 ------- $9.30
April 1441 ------ $9.30
May 1447 ------- $9.62
Jun 1329 -------- $9.93
Jul 1354 --------- $9.62

2014 AC Production
Jan 1048
Feb 977
Mar 1347
Apr 1438
May 1476
Jun 1413
Jul 1346
Aug 1368
Sep 1242
Oct 1193
Nov 1053
Dec 844

2013 AC Production
Jan 910
Feb 1105
Mar 1328
Apr 1444
May 1474
Jun 1447
Jul 1284
Aug 1230
Sep 1280
Oct 1050
Nov 955
Dec 1005

2012 AC Production
Mar 1228
Apr 1217
May 1416
Jun 1325
Jul 1189
Aug 1168
Sep 1118
Oct 603
Nov 970
Dec 851

Link to my Solar Production - http://pvpwrev.webs.com/
Reserved 4/20/2010
Ordered 9/2/2010
Arrived 4/17/2011
Installed 5.52 kW PV 2/2011
Upgraded PV to 6.9 kW 2/2012
Upgraded PV to 7.59 kW 2/2013

User avatar
RegGuheert
Posts: 5617
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Our solar production

Sat Aug 01, 2015 1:54 pm

July 2015 was pretty average. Toward the end of the month it finally got hot around here, resulting in extra consumption for air conditioning. PV production was about 60 kWh below last July, but that was completely due to some panels being disconnected for a while as I sold off four of the M190s (and then replaced them with M250s).

The peak production day last month was July 16 at 80.4 kWh, which was just shy of last year's July record on July 25, 2014 at 80.7 kWh.

Below are all our numbers for 2011, 2012, 2013, 2014 and 2015 along with the PVWatts predictions for the old array (PVW42: good through June 2014) and the new array (PVW54: good starting with July 2014):

Code: Select all

Month    PVW42   2011   2012   2013   2014   2015  PVW54  Units
---------------------------------------------------------------
January    916    669    869    822    857   1006   1229   kWh
February   702    158   1085    866   1054   1361    915   kWh
March      965      0   1350   1152   1113   1547   1240   kWh
April     1465      0   1465   1495   1338   1737   1899   kWh
May       1583      0   1477   1491   1457   2069   2074   kWh
June      1268      0   1478   1368   1521   1585   1666   kWh
July      1448    595   1395   1406   1880   1823   1902   kWh
August    1442   1347   1447   1333   1794          1875   kWh
September 1209    910   1295   1414   1577          1555   kWh
October   1304    931    981   1034   1258          1713   kWh
November   864    949   1041   1018   1227          1154   kWh
December   820    803    612    669    812          1108   kWh
---------------------------------------------------------------
Totals   13986   6362  14495  14068  15888  11128  18330   kWh
Since installation, our system has produced 61.941 MWh as of the end of July 2015.

Net grid consumption since July 2011 (when PV was turned on permanently) has been 13.0 MWh. Solar production during this period was 61.1 MWh. Total consumption equals 74.1 MWh. Solar has accounted for 82% of that total.
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
dgpcolorado
Posts: 2971
Joined: Sat Aug 20, 2011 1:56 pm
Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: Our solar production

Sun Aug 02, 2015 6:15 pm

July was cloudy and slightly wetter than average and had the lowest solar production for the month in the seven years I have been tracking it.

Code: Select all

Results for July for the last seven years:
                Old panels   Old+New panels
               (700 Watts)   (2170 Watts)
July 2015          96 kWh       268 kWh
July 2014         105 kWh       295 kWh
July 2013         103 kWh       290 kWh
July 2012          97 kWh
July 2011         108 kWh
July 2010         105 kWh
July 2009         112 kWh

Annual production:
2015      1931 kWh (so far)
2014      3217 kWh (= an average of 4.06 hours x panel wattage per day)
2013      3327 kWh (4.20 hours x panel wattage per day)
2012      1409 kWh
2011      1203 kWh (4.71 hours x panel wattage per day)
2010      1132 kWh (4.43 hours x panel wattage per day)
2009      1165 kWh (4.56 hours x panel wattage per day)
2008       232 kWh (partial year)
Blue 2012 SV Dec 2011 to Feb 2016
CPO 2014 Tesla S60 Mar 2016
One car, no ICE, at last!
Tesla Referral Code

User avatar
SilverLeaf
Posts: 418
Joined: Tue Apr 20, 2010 4:55 pm
Delivery Date: 17 Apr 2011
Leaf Number: 000516
Location: Scottsdale, AZ

Re: Our solar production

Tue Sep 01, 2015 9:11 am

Production from my 33 230wDC SunPower Panels via Sunnyboy (SMA) 7000US Inverter (7.59kW DC)
Pre-Solar Average Monthly Electric Bil - $250, prior to recent price increases

2015 AC Production/Electric Bill (APS)
Jan 863 ---------- $76.96 (old rate plan)
Feb 1060 -------- $9.90 (new rate plan)
Mar 1333 ------- $9.30
April 1441 ------ $9.30
May 1447 ------- $9.62
Jun 1329 -------- $9.93
Jul 1354 --------- $9.62
Aug 1358 -------$9.62

2014 AC Production
Jan 1048
Feb 977
Mar 1347
Apr 1438
May 1476
Jun 1413
Jul 1346
Aug 1368
Sep 1242
Oct 1193
Nov 1053
Dec 844

2013 AC Production
Jan 910
Feb 1105
Mar 1328
Apr 1444
May 1474
Jun 1447
Jul 1284
Aug 1230
Sep 1280
Oct 1050
Nov 955
Dec 1005

2012 AC Production
Mar 1228
Apr 1217
May 1416
Jun 1325
Jul 1189
Aug 1168
Sep 1118
Oct 603
Nov 970
Dec 851

Link to my Solar Production - http://pvpwrev.webs.com/
Reserved 4/20/2010
Ordered 9/2/2010
Arrived 4/17/2011
Installed 5.52 kW PV 2/2011
Upgraded PV to 6.9 kW 2/2012
Upgraded PV to 7.59 kW 2/2013

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