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Author Topic: December 2019 PV Generation  (Read 1012 times)
Fintray
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« on: January 01, 2020, 11:03:30 AM »

My results for December were:

3.87 kWp, slope 50 degrees, due south, lat 57.15

Total generation: 83.6kWh

Daily average: 2.7kWh

Generation per kWp: 21.6kWh

Daily average per kWp: 0.7kWh

PVGIS: 62.1kWh

%PVGIS: 134%
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3.87kWp PV
10.24kWp PV SolarEdge system
Tesla Powerwall 2
100 x 47mm Navitron tubes (still being installed!)
MK2 PV router DHW diverter
Morso 5kW WBS
Nissan Leaf
billi
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« Reply #1 on: January 01, 2020, 01:13:29 PM »

My results for December were:

3.87 kWp, slope 50 degrees, due south, lat 57.15

Total generation: 83.6kWh

Daily average: 2.7kWh

Generation per kWp: 21.6kWh

Daily average per kWp: 0.7kWh

PVGIS: 62.1kWh

%PVGIS: 134%

       Oh , thats good  performance  , the 50 degrees i supose have something to do with that too  , so in your case   its probably  1/3 or 1/4  of your electricity needs  (just assuming)  , in my opinion   there needs to be concepts to go way over 4 kW PV  if land or roof allows

Happy new year , let the sun shine ,let...
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1.6 kw and 2.4 kw   PV array  , Outback MX 60 and FM80 charge controller  ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw  windturbine
Fintray
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« Reply #2 on: January 01, 2020, 03:35:59 PM »

Oh , thats good  performance  , the 50 degrees i supose have something to do with that too  , so in your case   its probably  1/3 or 1/4  of your electricity needs  (just assuming)  , in my opinion   there needs to be concepts to go way over 4 kW PV  if land or roof allows

Happy new year , let the sun shine ,let...


Hi Billi

The 50 degree angle certainly helps as my other 10.24kWp system (at about 15 degrees) often struggles to match the output from the 3.87kWp at this time of year. The December total of 83.6kWh is only just above the December average from the past ten years of 82kWh (low of 58kWh and high of 115kWh).
Looking forward to the sun being higher in the sky from now on.
« Last Edit: January 01, 2020, 03:42:04 PM by Fintray » Logged

3.87kWp PV
10.24kWp PV SolarEdge system
Tesla Powerwall 2
100 x 47mm Navitron tubes (still being installed!)
MK2 PV router DHW diverter
Morso 5kW WBS
Nissan Leaf
JR
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« Reply #3 on: January 01, 2020, 05:18:39 PM »

2.5 system  10ZNShine panels  Sunny Boy Inverter  Orientating 170 degrees south  Inclination 30 degrees  East Midlands

Dec 2019 - 64

Dec 2018 - 59
Dec 2017 - 71
Dec 2016 - 57
Dec 2015 - 51
Dec 2014 - 98
Dec 2013 - 73
Dec 2012 - 80

Expected generation 54
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dc
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« Reply #4 on: January 01, 2020, 11:09:52 PM »

Capacity    Orientation       Slope    Lat.          Total    Best         Worst       PVGIS   %PVGIS   KWh/KWp   Daily   Days
3.995   +10 South        35   51.77N   151   11.605   0.364   96   157%   37.8       1.22   31
Better than average December but best ever annual result
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Sharp NU-E235 x 17 = 3.995kWp, SB4000TL, 4KWh Powervault, Essex CM8 3NR  Lat - 51-46'41"
marshman
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« Reply #5 on: January 02, 2020, 09:31:19 AM »

Capacity   Orientation   Slope   Lat        Total          kWh/kWpk    
3.15kWpk      157.0      11.0   50.9        77 kWh      24.4


Pretty good December.  End of another year and only slightly off last years best ever annual total at 3728kWh for a 3.15kW pk system installed April 2010.  (1183 kWh/kWpk)

« Last Edit: January 03, 2020, 08:55:59 PM by marshman » Logged

3.15kWpk (15xSharp ND210)/SB3000. & 3.675kWpk (15 x Suntech 245WD)/SB4000TL, 10kW GSHP driving Wirsbo underfloor heating from 1200m ground loops. 10' x 7' solar wall (experimental). Clearview 650 Wood Burning Stove. MHRV - diy retrofit. Triple glazing.
Mikel
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« Reply #6 on: January 02, 2020, 09:33:23 AM »

Total monthly production

Dec 2019   76.4 kWh

 19.9 kWh/kWp

Av daily production  2.5 kWh

Dec 2018 41.2 kWh
Dec 2017 61.7 kWh
Dec 2016 64.0 kWh
Dec 2015 43.1 kWh
Dec 2014 77.6 kWh
Dec 2013 67.3 kWh
Dec 2012 71.8 kWh


3.84 kW, Ground mount, S facing, slope 25 degrees, 16*240w Sanyo HIT panels, Fronius IG 40 inverter, West Cornwall
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scfnet
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« Reply #7 on: January 03, 2020, 07:43:00 AM »

December 2019
System: 3.525kWp (15 Schott Poly 235, Sunny Boy TL4000)
Slope 30, 175 (South -5), Lat: 51.24N Long: 0.72W - Ash, Surrey
Total generation: 108.256kWh
Daily average: 3.492kWh
Generation per kWp: 30.711kWh
Daily average per kWp: 0.991kWh
Best day: 8.064kWh - 02/12/2019
Worst day: 0.488kWh - 28/12/2019
Capacity    Orientation    Slope    Lat    Total    Best    Worst    PVGIS    %PVGIS    kWh/kWp    Daily    Days   
3.5251753051.24N108.2568.0640.488106.000102.12830.7113.49231
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3.525kWp, 15 x Schott Poly 235, Sunny Boy 4000TL-20 with Webbox, almost south.
solluva II
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« Reply #8 on: January 03, 2020, 08:11:11 PM »


Another dreary December although marginally the best of the last five.
12 months generation to the end of December 2019 was 3710.3 kWh (966.2 kWh/kWp)
Decembers to date:
2011 101.6 kWh
2012 116.5 kWh
2013    93.6 kWh
2014 125.4 kWh   
2015 -     54.1 kWh   
2016 -     78.8 kWh   
2017 -     84.3 kWh   
2018 -     57.1 kWh   
2019 -     85.9 kWh

System: Ground mounted 3.84kWp, slope 40, 15 east of south,, Lat 50 40' West Dorset
PVGIS: 96.4 kWh not taking shading into account.
PVGIS: 90 kWh taking shading into account.(6.9 % reduction)

Total generation: 85.9 kWh  95.4 % of PVGIS (shaded) prediction.
Daily Average: 2.7 kWp
Generation per kWp: 22.4 kWh
Daily average per kWp: 0.7 kWh

Best Day: 6.1 kWh on 2nd.
Worst Day: 0.1 kWh on 10th.
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hallie
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« Reply #9 on: January 04, 2020, 06:42:44 PM »

Total:  107.7 kwh

Best day: 9.4 kwh 2/12/2019

Worst day: 0.3 kwh 10/12/2019

Generation per kwp: 29.27 kwh

Daily average per kwp: 0.94 kwh

Daily average: 3.47 kwh
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DIY installed system @ 1.77 per w
16 x 230w Upsolar panels = 3.68 kwp
StecaGrid 3600
Solic 200 fitted May 2017
SW facing in Chandlers Ford, Hampshire

Generated totals : 3570 kwh (2012/13) 3651 kwh (2013/14) 3761 (2014/15) 3605 kwh (2015/16) 3657 kwh (2016/17) 3751 kwh (2017/18)
supremetwo
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« Reply #10 on: January 04, 2020, 10:00:08 PM »

December: 104 kWh (BDPV PVGIS: 119 kWh)

Generation per kWp: 26 kWh

Best day 2nd:    9.66 kWh

Worst day 10th: 0.31 kWh

2019 annual total: 3.838 MWh

Total since install   33.694 MWh


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john999boy
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« Reply #11 on: January 05, 2020, 09:43:31 AM »

Not too bad a month and managed to get the 'best ever' year's output with 6 days to spare!

PVGIS Forecast  181 kWh
Total generation: 292 kWh (161%)
Generation per kWp: 34.51 kWh
Daily average: 9.41 kWh
kWh/kWp: 1.11
Best day: 3rd 24.4 kWh (418%)
Worst day: 5th 0.3 kWh (5%)
Export meter: 52%
Immersun: 61 kWh
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8.46kWp solar PV - 169 - 40 slope - 53N. Immersun fuelled DHW.
volzhskyboy
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« Reply #12 on: January 06, 2020, 03:00:58 PM »

Total Generation: 127.86 kWh (PVGIS-CMSAF 117 KWh)

Daily Average: 4.12 kWh 
                   
Generation per kWp: 31.96 kWh           
                     
Daily average per kWp: 1.03 kWh

Best Day: 11.20 KWh 03rd December

Worst Day: 0.17 KWh 20th December

Bill.
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16  x Sanyo HITH250E01. SMA Sunnyboy 4000TL & Sunnybeam. 50 Deg incl, South facing. Lat 54 36'
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