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Author Topic: October 2019 PV generation  (Read 346 times)
solluva II
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« on: November 01, 2019, 12:09:38 PM »

A month of rain and overcast conditions producing the wettest October for at least 25 years and the wettest month for over four years. Generation wise it was the second worst October out of nine, the worst being 2013 (see below):
2019 -  197.0 kWh
2018 -  278.8 kWh
2017 -  220.0 kWh
2016 297.2 kWh
2015 244.8 kWh 
2014 215.8 kWh
2013 167.7 kWh (only 23 days as RCD had tripped)
2012 242.1 kWh
2011 269.9 kWh

System: Ground mounted 3.84kWp, slope 40, 15 east of south,, Lat 50 40' West Dorset

PVGIS: 226 kWh not taking shading into account.
PVGIS: 210 kWh taking shading into account.(7.1 % reduction)

Total generation: 197.0 kWh 93.8 % of PVGIS (shaded) prediction.

Daily average
Predicted PVGIS (shaded): 6.8 kWh
Actual: 6.4 kWh

Generation per kWp: 51.3 kWh
Daily average per kWp: 1.7 kWh

Best Day: 16.2 kWh on 2nd
Worst Day: 0.2 kWh on 31st

12 months generation to the end of October 2019 was 3682.2 kWh (958.9 kWh/kWp)
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dc
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« Reply #1 on: November 01, 2019, 07:19:49 PM »

Capacity    Orientation          Slope       Lat.    Total    Best      Worst   PVGIS   %PVGIS   KWh/KWp   Daily       Days
3.995   +10 South         35       51.77N     255        21.965      1.38   264           96.7%   63.9           2.06        31
also worst since 2013
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Sharp NU-E235 x 17 = 3.995kWp, SB4000TL, 4KWh Powervault, Essex CM8 3NR  Lat - 51-46'41"
Mikel
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« Reply #2 on: November 01, 2019, 09:33:23 PM »

Total monthly production

Oct 2019  222.6 kWh

58.0 kWh/kWp

Av daily production  7.2 kWh

Oct 2018 268.7 kWh
Oct 2017 185.8 kWh
Oct 2016 272.6 kWh
Oct 2015 247.3 kWh
Oct 2014 202.4 kWh
Oct 2013 201.7 kWh
Oct 2012 227.6 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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Fintray
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« Reply #3 on: November 04, 2019, 12:11:54 PM »

My results for October were:

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

Total generation: 234.3kWh

Daily average: 7.5kWh

Generation per kWp: 60.5kWh

Daily average per kWp: 1.9kWh

PVGIS: 205kWh

%PVGIS: 114%

Best October ever:
2010 195
2011 207
2012 225
2013 174
2014 161
2015 202
2016 231
2017 178
2018 - 211
« Last Edit: November 04, 2019, 12:21:58 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
john999boy
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« Reply #4 on: November 04, 2019, 07:58:10 PM »

Pretty much in line with all the previous year's.

PVGIS Forecast  482 kWh
Total generation: 548 kWh (114%)
Generation per kWp: 64.77 kWh
Daily average:  17.68 kWh
kWh/kWp: 2.09
Best day: 2nd 48.2 kWh (311%)
Worst day: 26th 1.5 kWh (10.3%)
Export meter: 63%
Immersun:  99 kWh
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8.46kWp solar PV - 169 - 40 slope - 53N. Immersun fuelled DHW.
marshman
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WWW
« Reply #5 on: November 04, 2019, 08:26:21 PM »

Capacity   Orientation   Slope   Lat        Total          kWh/kWpk     
3.15kWpk      157.0      11.0   50.9        175.1 kWh      55.6


Hot on the heels of the worst September, October 2019 is also the worst since install in 2010. 2012 was close at 177kWh, by contrast 2018 was 253.6kWh (44% higher!)

Have checked the system and it seems OK, just been a really wet and overcast month.
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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.
pantsmachine
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« Reply #6 on: November 04, 2019, 09:44:00 PM »

136 kwh.  freeze
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HUGE insulation depth.
5.12 kw PV system with Solar edge.
4.8 kw Pylon tech battery storage.
All Low energy bulbs.
Solar I boost charging 210 ltr OSO system tank.
Balanced & zoned CH wet system & Hive 2
Wood fired thermosiphon cedar hot tub.
Masanobu Fukuoka inspired veg garden & fruit trees
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