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Author Topic: March 2020 PV Generation  (Read 1413 times)
paul149
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« on: March 31, 2020, 07:25:27 PM »

Just got a ReD light on my Gen meter so for March gen figures are thus,

Out of 141 Hours 15 Mins* of Sun & 73.6 mm* of Rain My Kit managed this;

Total generation: 329 kWh ( best Mar Since 2012)

267 kWh Mar  2019
222 kWh Mar  2018,
270 kWh Mar  2017,                  
284 kWh Mar  2016,
294 kWh Mar  2015,
309 kWh Mar  2014,
201 kWh Mar  2013,
366 kWh Mar  2012,           Avg to Date= 282 kWh

PVGIS (classic)   230  kWh = 143%
PVGIS (cmsaf)    274  kWh = 120%

Daily average:  10.6 kWh

Generation per kWp: 94 kWh

Daily average per kWp: 3.03 kWh

Best day:     19.3  kWh 23rd

Worst day:  2.05  kWh 5th

Capacity  Orientation  Slope   Lat    Total    Best     Worst   PVGIS(c)   %PVGIS    kWh/kWp   Daily/kWp   Days    
3.5            225            35    51.3    329     19.3      2.05       230          143           94            3.03        31
*source http://www.martynhicks.uk/weather/data.php

Note: There appears to be no noticeable deterioration to output of system over the last 8 years, brilliant for zero maintenance or any intervention!





* Capture 2020.JPG (22.5 KB, 712x302 - viewed 35 times.)
« Last Edit: April 23, 2020, 04:21:07 PM by paul149 » Logged

3.5 kWp (14 x Sanyo H250E01 + SB3000TL) 225' (SW) at 35' Pitch Lat 51.30' (Bristol) Installed cost 2.63/Wp (Nov 2011) now with solarimmersion and 250L unvented dhw (Almost Zero gas input for DHW from Apr to mid Sep)
john999boy
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« Reply #1 on: March 31, 2020, 08:12:24 PM »

Five consecutive (YTD) record breaking days from the 22nd was a record in itself as well as being the second best March since installation.

PVGIS Forecast  570 kWh
Total generation: 907 kWh (159%)
Generation per kWp: 107.2 kWh
Daily average:  29.3 kWh
kWh/kWp: 3.46
Best day: 26th 52.5 kWh (284%)
Worst day: 18th 7.1 kWh (39%)
Export meter: 69%
Immersun:  135 kWh
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8.46kWp solar PV - 169 - 40 slope - 53N. Immersun fuelled DHW.
Wickham
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« Reply #2 on: April 01, 2020, 06:58:45 AM »

March 2020
214.8 kWh total
80.75 kWh/kWp
2.60 kWh/kWp/day
6.93 kWh/day

2020 80.75 kWh/kWp
2019 66.62
2018 49.10
2017 58.78
2016 72.89
2015 73.82
2014 32.93 fault
2013 48.13
2012 84.28

A very good month.
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14 Upsolar UP-M190M 190W panels total 2.66kWp and 13 Enecsys SMI-200/G83 and 1 SMI-240/G83 72 cell micro-inverters and website gateway unit, ground-mounted in early May 2011; 30 degree slope; 5 degrees east of south; 8 miles west of Salisbury
dc
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« Reply #3 on: April 01, 2020, 08:21:30 AM »

Capacity    Orientation   Slope    Lat.       Total    Best          Worst       PVGIS   %PVGIS   KWh/KWp   Daily      Days
3.995   +10 South             35       51.77N        441   25.837   0.939   291   152%   110.4   3.56       31
My second best March result, albeit 5% less than 2014
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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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WWW
« Reply #4 on: April 01, 2020, 12:21:14 PM »

Capacity   Orientation   Slope   Lat        Total          kWh/kWpk   
3.15kWpk      157.0      11.0   50.9        338 kWh      107.3

Best March ever, well since install in April 2010. Sort of makes up for the dire Jan and Feb. Previous best was March 2014 at 332kWh.  This months output  was 2.5 times that achieved in Feb.
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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.
JR
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« Reply #5 on: April 01, 2020, 12:38:35 PM »

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

Mar 2020 - 241

Mar 2019 - 228
Mar 2018 - 152
Mar 2017 - 202
Mar 2016 - 197
Mar 2015 - 202
Mar 2014 - 245
Mar 2013 - 171

Expected generation 168


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Fintray
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« Reply #6 on: April 01, 2020, 01:51:07 PM »

My results for March were:

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

Total generation: 342.8kWh

Daily average: 11kWh

Generation per kWp: 88.6kWh

Daily average per kWp: 2.86kWh

PVGIS: 294kWh

%PVGIS: 116%
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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
Mikel
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« Reply #7 on: April 01, 2020, 05:42:41 PM »

Total monthly production

Mar 2020   348.9 kWh

90.9 kWh/kWp

Av daily production  11.3 kWh

Mar 2019 337.7 kWh
Mar 2018 285.1 kWh
Mar 2017 253.5 kWh
Mar 2016 337.8 kWh
Mar 2015 341.3 kWh
Mar 2014 280.9 kWh
Mar 2013 265.3 kWh
Mar 2012 373.6 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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hallie
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« Reply #8 on: April 01, 2020, 06:21:57 PM »

Total:  386.4 kwh

Best day: 22.1 kwh 23/03/2020

Worst day: 1.8 kwh 05/03/2020

Generation per kwp: 105 kwh

Daily average per kwp: 3.4 kwh

Daily average: 12.5 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)
kdmnx
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« Reply #9 on: April 02, 2020, 06:38:02 AM »

Total:  386.4 kwh

Best day: 22.1 kwh 23/03/2020

Worst day: 1.8 kwh 05/03/2020

Generation per kwp: 105 kwh

Daily average per kwp: 3.4 kwh

Daily average: 12.5 kwh

105kWh/kWp?
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12x JA Solar 340Wp panels (total 4080Wp)
Lux Power inverter charger
5x PylonTech 2000 2.4kWh batteries (total 12kWh (11kWh usable))
Fintray
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« Reply #10 on: April 02, 2020, 06:55:29 AM »

Total:  386.4 kwh

Best day: 22.1 kwh 23/03/2020

Worst day: 1.8 kwh 05/03/2020

Generation per kwp: 105 kwh

Daily average per kwp: 3.4 kwh

Daily average: 12.5 kwh

105kWh/kWp?

Looked again and it should be 94.7kWh/kWp (386.4/4.08).  Roll Eyes
Unless you are dividing the total by the export limit of 3.68kW.
« Last Edit: April 02, 2020, 07:46:57 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
brackwell
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« Reply #11 on: April 02, 2020, 07:14:16 AM »

Best March ever  117.6 kwh/kwp
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JohnS
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« Reply #12 on: April 02, 2020, 09:48:12 AM »

Total:  386.4 kwh

Best day: 22.1 kwh 23/03/2020

Worst day: 1.8 kwh 05/03/2020

Generation per kwp: 105 kwh

Daily average per kwp: 3.4 kwh

Daily average: 12.5 kwh

105kWh/kWp?

It is monthly kWh/kWp, not daily.   Definitely within expected range.
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2.1kWp solar PV  PHEV West London
scfnet
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« Reply #13 on: April 03, 2020, 07:29:59 AM »

March 2020
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: 345.312kWh
Daily average: 11.139kWh
Generation per kWp: 97.961kWh
Daily average per kWp: 3.160kWh
Best day: 19.852kWh - 23/03/2020
Worst day: 1.036kWh - 05/03/2020
Capacity    Orientation    Slope    Lat    Total    Best    Worst    PVGIS    %PVGIS    kWh/kWp    Daily    Days   
3.5251753051.24N345.31219.8521.036289.000119.48597.96111.13931
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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 #14 on: April 05, 2020, 08:47:40 PM »

System: Ground mounted 3.84kWp, slope 40, 15 east of south,, Lat 50 40' West Dorset
12 months generation to the end of March 2020 was 3675.2 kWh (957.1 kWh/kWp)

Generation for the months of March:
2020 -  358.4 kWh
2019 -  323.5 kWh
2018 -  257.2 kWh
2017 -  266.7 kWh
2016 -  359.0 kWh
2015 -  332.0 kWh
2014 409.5 kWh
2013 275.1 kWh
2012 421.7 kWh

Mid-March Shading. Mornings to 08:00GMT. Afternoons from 16:00GMT
PVGIS: 299 kWh not taking shading into account.
PVGIS: 278 kWh taking shading into account.(7.0 % reduction)

Total generation: 358.4 kWh 128.9 % of PVGIS (shaded) prediction.
Generation per kWp: 93.3 kWh

Daily average
Predicted PVGIS (shaded): 9.0 kWh
Actual: 11.6 kWh
 Daily average per kWp: 3.0 kWh

Best Day: 22.1 kWh on 25th
Best day per kWp: 5.8 kWh

Worst Days: 2.2kWh on 4th
Worst day per kWp: 0.57 kWh 




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