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Solar PV Performance Thread - Post your monthly output

championc

I think it would be very useful to post Solar PV monthly generation figures. Not only could it highlight a problem further down the road, but there many be many owners who are getting far less than they expected (or promised by an installer) and would welcome feedback from other owners.

Of course, there are so many factors involved. Your location in the country (or abroad for our international boardies), your array size, your array direction and the panels mounting angle.

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championc

championc wrote: »

3.6kw South Facing - South Dublin - 22 deg slope - 10kWh LiFePO4 Batteries
Live System Link - https://www.solarmanpv.com/portal/Terminal/TerminalMain.aspx?pid=95390

Totals so far:
Month |2020 |2021
January | 75kWh | 56.14kWh
February | 121.55kWh |142.04kWh
March | 200.59kWh |269.23kWh
April | 279.11kWh |373.69kWh
May | 396.34kWh |
June | 264.13kWh |
July | 261.88kWh |
August | 254.10kWh |
September | 268.62kWh |
October | 151.43kWh |
November | 90.4kWh |
December | 56.47kWh |
Total | 2.41mWh | 0.84mWh

April Generated - 373.69kWh / Consumed - 383.16kWh / Imported - 95.05kWh / Exported - 28.02kw / Eddi - 43.5kw / Zappi 7.8kw
Batteries - Charged 192.55kw / Discharged 165.66kw (86%)

Meter Readings 03618 (00792 Day - up 24 / 02822 Night - up 77)

slave1

Midlands
4.1kWp SW, 3.3kWp NE
391kW imported
758.7kWh Generated
675.3kWh Consumed
323kWh to Eddi
Highest was 25th, 37.1kWh
Lowest was 20th, 7kWh
63% self sufficient for month
Monthly cash saving based on average daily load and all non-load items like dishwasher/washing machine/immersion at night rate, €83.97

Consumption figures include EV charging of 260kWh which were a mixture of excess PV and night rate, I can't at the moment see the split

Boscoirl

April Usage (10th-30th first month with solar)
4kWp Array SSE
Best day 18.9kWh
Generated: 298kWh
Eddi: 25.4kWh
Imported: 91.8kwh
Exported: 46.5kWh
Net Import: 45.3k (due to magic meter

)

Happy with our first month. Have another 2kWp worth of panels to go up once the grant is cleared. The biggest draw in the import total is due to a heat lamp the wife got for the cat. I would estimate 60kWh has gone to that this month. Shall be turning that of now as it’s summer.

slave1

Boscoirl wrote: »

The biggest draw in the import total is due to a heat lamp the wife got for the cat.

You know you can get cheap USB powered heat mats from Aliexpress, we have one the cat goes up to when she wants and we flick a switch for her....

[Deleted User]

Should be up and running next week.

15*380w panels SSW.

Should be more active in these parts then!

garo

garo wrote: »

4.8kW EW Dublin. 2.4kWh battery
April 2020 (kWh):
Predicted: 442
Actual: 500
Consumption: 463
Import: 156 (72d, 84n)
Export: 193

Best day: 21st: 25.2
Worst day: 18th: 5.4

4.8kW EW Dublin. 2.4kWh battery
April (kWh):
Predicted: 442
Actual: 563
Consumption: 700
Import: 231 (111d, 120n)
Export: 94

Best day: 22nd: 27.3
Worst day: 18th: 6.2

Sadly the timer on the dishwasher broke last month. And lately my wife seems to decide to put on a load of washing as soon as the sun goes down.

DrPhilG

August - 572.1
September - 437.2
October - 254.3
November - 106.4
December - 68.3
January - 100.6
February - 187.5
March - 316.9
April - 658.5

April Stats
6.2kWp (2.8 south/3.4 west), 4.8kWh battery, Zappi & Eddi – Donegal

Generation – 658.5kWh
Export – 79.3kWh
Import – 260.6kWh

Best day - 24th, 35.9kWh
Worst day - 19th, 9.3kWh

120% of my predicted generation, best month so far, plus half the export of my previous best.

shanemc30

August - 455.4
September - 315.9
October - 228.1
November - 100.1
December - 81
January - 130
February - 194.7
March - 300.6
April - 583

April Stats
4.92kWp (S), 4.8kWh battery, solar i boost Donegal

Generation - 583kWh
Export – 144.3kWh
Import – 158.6kWh

Best day - 24th, 33.9kWh
Worst day - 20th, 2.8kWH

handpref

April
5.4 kwp east west split-

550kw’s generated -

March was 270 so big jump.

denismc

2.08kWp South facing Cork.

April 283kWh generated, 220kWh consumed

346kWh imported, 63kWh exported

Geeyfds53573

5.92 kWp of panel
WNW ESE 50:50
South Dublin

Generated 665.74 kWh
ESE 372.24 kWh
WNW 293.5 kWh
Eddie 170 kWh
Zappi 44kWh (late install won’t get much higher with Covid)
Exported 207.8 kWh
Imported 109.6 kWh
Best Day 24th 33.61 kWh
Worst Day 18th 10.2 kWh

ParkRunner

Maybe a wind turbine on the roof wouldn’t be such a bad idea! :-)

MAULBROOK

ParkRunner wrote: »

Maybe a wind turbine on the roof wouldn’t be such a bad idea! :-)

https://www.facebook.com/ridgeblade/

ParkRunner

MAULBROOK wrote: »

https://www.facebook.com/ridgeblade/

Interesting do you (or anyone) have one of these systems installed? Perhaps there’s another thread for this...

DrPhilG

Been trying to track those buggers down for years.

slave1

MAULBROOK wrote: »

https://www.facebook.com/ridgeblade/

Dunno about them, whatever about the panels and we throw them up and ignore planning restrictions these would exceed the ridge height which I always thought was a no no from a planning perspective

Alkers

2.52kWp south facing, Dublin city, installed Dec 12th.

December total 58.4kWh
January total 82.6kWh
February total 148.3kWh
March total 222.8kWh
April total 327.2kWh

Highest - Apr 22nd & Apr 24th (17.5kWh)
Lowest - Apr 1st (2.6kWh)

pjordan

Near Westport

4.6kw South facing

Total April: 583.9kw
Best day: 26th April - 30.6kw
Worst day: 20th April - 2.3 kw

Mickeroo

2020 (5.5 months): 1,254.1kwh

2021
January: 89.0kwh
Feb: 145.7kWh
March: 210.7kWh
April: 504.5kWh

3.7kWp S/SW facing, Mayo

Think that's my best so far by over 100kwh

Gazzler82

3kw SSE Cork

April 279.7kwh
Best 15.4 kWh 26th
Worst 1.8 kWh 20th

Manic Moran

April 2021, 11.5kW system, Mainly SE, some SW, San Antonio. Peak output was 7.9kWh. Single best day, 61.2kWh.

Absolutely perfect balance, by sheer luck. 1.1MWh produced. 1.1MWh consumed. (The net difference over the month was 25.2 kWh more produced than consumed). At 0.019 cents per kWh, my bill for the month got a credit of 47 cents on top of the connection fee of $8.

All in all, 43% of my usage was covered by power generated by my panels at the time of use.

mun1

mun1 wrote: »

April 2021 stats
Generated 566kwh
Best day 30kw on 25th
Worst day 3kwh on 20th
Self use rate 75%

May 2021 stats
Generated 547kWh
Best day 27.8 on 6th
Worst day 5.2 on 27th
Self use rate 72%

Getting EV in July so should soak a bit of excess PV

MAULBROOK

MAULBROOK wrote: »

April Total 782.4Kw
Best day, Apr 26th 38.2Kw
Worst Day Apr 9.8Kw
Exported 152.4Kw
Imported 1.6Kw
Consumed 641.1Kw
Eddie 243.94 Kw, lovely hot water. Boiler is now switched off till October, I hope.

March Total 802.3Kw
Best day, Mar 11th 41.4Kw
Worst Day Mar 20th 8.4Kw
Exported 209.1Kw
Imported 10.4Kw, a broken immersion caused the purchase
Consumed 611.5Kw
Eddie 29.68 Kw.

mp3guy

mp3guy wrote: »

South: 443.02kWh
East/West: 759.9kWh
PV Total: 1202.92kWh
Best Day: 21st (69.48kWh)
Worst Day: 12th (6.68kWh)

Grid Export: 376.05kWh
Grid Import: 198.32kWh
Surplus Energy: 177.73kWh

CO2 Saved: 422.91kg

House Usage: 829.58kWh
Car Usage: 92.43kWh
Water Usage: 103.18kWh

16kWp DC / 11kWp AC: 5.76kWp SSW, 4.48kWp ESE and 5.76kWp WNW all 45 degree pitch in Cork with 18.9kWh battery.

South: 538.48kWh
East/West: 973.59kWh
PV Total: 1512.07kWh
Best Day: 26th (92.80kWh)
Worst Day: 27th (14.99kWh)

Grid Export: 590.57kWh
Grid Import: 60.27kWh
Surplus Energy: 530.30kWh

CO2 Saved: 584.47kg

House Usage: 752.91kWh
Car Usage: 86.57kWh
Water Usage: 142.29kWh

Pretty sure all the grid import was on night rate, so well short of a fiver in cost. Time to optimize for standing charge over rates...

MAULBROOK

mp3guy wrote: »

16kWp DC / 11kWp AC: 5.76kWp SSW, 4.48kWp ESE and 5.76kWp WNW all 45 degree pitch in Cork with 18.9kWh battery.

South: 538.48kWh
East/West: 973.59kWh
PV Total: 1512.07kWh
Best Day: 26th (92.80kWh)
Worst Day: 27th (14.99kWh)

Grid Export: 590.57kWh
Grid Import: 60.27kWh
Surplus Energy: 530.30kWh

CO2 Saved: 584.47kg

House Usage: 752.91kWh
Car Usage: 86.57kWh
Water Usage: 142.29kWh

Pretty sure all the grid import was on night rate, so well short of a fiver in cost. Time to optimize for standing charge over rates...

Dam it, we all think we are getting outstanding numbers, then in rocks mp3guy. :eek::eek::eek:

garo

garo wrote: »

4.8kW EW Dublin. 2.4kWh battery
May 2020(kWh):
Predicted: 578
Actual: 725
Consumption: 597 - had the immersion on most days to soak up the excess.
Import: 165(76d, 89n)
Export: 293

Best day: Lots of days above 29 kWh
Worst day: 10th: 7.7

4.8kW EW Dublin. 2.4kWh battery
May 2021(kWh):
Predicted: 578
Actual: 650.6
Consumption: 745
Import: 218(97d, 121n)
Export: 123.5

Best day: 30th: 33.5
Worst day: 21st: 7.1

Not as good as last year but then last year would be hard to top.

tails_naf

May Stats
6.4kWp (4.5 SSE, 1.9 WSW) , 4.8kWh battery, Eddi, dumb electric car charger – Tipperary

Generation – 734 kWh
Export – 63 kWh
Divert – 223 kWh
Import – 141 kWh

Best day - 30th, 37.2 kWh
Worst day - 24th, 4 kWh

Totals so far:
Month|Generate (KWh)|Export (KWh) |Divert (KWh) |Import (KWh)
November | 163 | -- | -- | 443
December | 117 | 0.5 | 22 | 552
January | 163 | 1.5 | 29 | 709
February | 213 | 9.6 | 47 | 496
March | 436 | 25.6 | 119 | 384
April | 705 | 53.7 | 219 | 207
May | 734 | 63 | 223 | 141
Total | 2525 | 154 | 659 | 2932

Pretty reasonable for a poor May, let's hope June is better!

raytaxi

Mine stats 2.5kW ssw louth first full month
Best day 30 May 16.7 kWh
Worst day 21 May 3.4 kWh
Total for month 318.9kWh

bod71

bod71 wrote: »

Apr Gen. 4kwSE/NW. 323kw. Best 18.2.Worst 2.4kw.

May Gen. 428kw. Best 23.6. Worst 2.6kw.

Winterman1234

Winterman1234 wrote: »

April Values, South East facing, 2.4kwp, Donegal, No Battery

(Predicted value - 265kWh)

Actual Gen - 269kWh (April 2020 - 274kWh)
Grid Consumption - 81kWh
Hot Water Eddi - 93kWh
Export - 74kWh
Lowest Daily Gen on the 20th - 1.4kWh
Highest Daily Gen on the 24th - 14.6kWh

May values, South East facing, 2.4kwp, Donegal, No Battery.

Generation - 292kWh (May 2020 — 306kWh)
Grid Consumption - 79kWh
Hot Water Eddi - 108kWh
Export - 82kWh
Lowest Daily Gen on the 21st - 3.1kWh
Highest Daily Gen on the 18th - 15.5kWh