Solar PV Performance Thread - Post your monthly output

Eye

My Setup:

7.74kW (18x 430w panels) 9 panels South / 9 panels West in North Waterford (Installed June 2023), slope 40°, 5kW Huawei Inverter with No Battery, 1x PHEV

August

Prediction 759 kWh

Actual Generation 718.08 kWh (95% of predicted)

Total Consumption 921.26 kWh (46.6% Solar / 53.4% Grid)

PV Consumed 426.82 kWh

Imported from Grid 494.44 kWh

Exported to Grid 291.26 kWh

Eddi Usage 76.2 kWh

Wallbox EV Charger 153.98 kWh (80.99 kWh Solar / 72.99 kWh Grid import) [52.6% Green]

Best Day 1st Aug - 39.42 kWh

Worst Day 4th Aug - 5.94 kWh

bullit_dodger

Pretty good August. 6.5Kwp system in South Dublin city setup exactly E/W

120% of PVGIS. Best August on record for me, even beat this years July figure of 644Kwh. Sadly with an E/W setup, generation really takes a hit now from Sept onwards with expected forecast dropping to 400Kwh approx for Sept.

bullit_dodger

https://www.boards.ie/discussion/comment/122567681#Comment_122567681

Nope, nothing wrong just that the sun doesn't shine directly onto the panels as it would in high summer. You'll notice that dropping off until December and then it will start climbing again. Here's my own max output for 12 months.

Note the max output in December is a miserable 1.5Kw. Again this is because the sun is low in the sky and hits the panels at an angle rather than straight on which happens in summer and the sun is more overhead.

ionapaul

For August:

796kWh generated - 6.72kW system facing ESE in South Dublin.

313kWh consumed.

Slightly higher generation than July and 10% better than August 2023.

In August, self-used 27.4% of electricity generated and fed in the other 577kWh (no battery).

Since initial installation on March 7 2023, a total of 10.78MWh generated, 7.51MWh fed to grid, with a self-use ratio of approximately 31%.

Lena11

3.24 kWp system SSW Dublin

Aug Production - 357.9kWh

279.42 of solar production consumed (system has a 5kW battery and there is an Eddi)

78.48 exported

78.24 imported

Best Day (joint 24th and 30th) - 17.8kWh

Worst Day 4th - 5.5kWh

MacDanger

https://www.boards.ie/discussion/comment/122450816#Comment_122450816

7.56kW system, equal EW split based in North Mayo

652kWh generated (down from 754kWh in July)

310kWh consumed (174 from panels, 136 from grid)

Best day was 5th August with 37.8; worst day was 25th August with 3.7

allinthehead

East Cork

10.75kwp

Pv - 1145.9kwh

Import - 230.8kwh

- 167kwh @ 10.47c per kwh

- 59.4kwh @ 17.83c per kwh

- 4.4kwh @ 36.15c per kwh

Total €29.67

Standing charge €27.90

Export - 637.5kwh @ .21c per kwh (€133.87)

Eddi - 34.9kwh

Zappi - 260.5kwh

Granny Charger - 43.7kwh

Aircon - 21.8kwh

Best Day- 18th - 58.16kwh

Worst Day - 4th - 19.53kwh

rgfuller

34th Month

Dublin - Lucan - August 24 - 7.12kW installed (S: 3.45kW, E: 2.41kW, W: 1.38kW). E&W Optimised. 5KWh Battery, (30 S & 22.5 E/W degree pitch).

Total Generation: 677kWh (301kWh self use (inc. battery), 376kWh to grid)

Best Day: August 12th - 31.9kWh

Worst Day: August 25th - 12.0kWh

Total Consumption: 322kWh (93% Solar: 7% Grid Import (24kWh))

Milestones & Info:

August 2023 :: Generation 624kWh, Consumption 345kWh

August 2022 :: Generation 797kWh, Consumption 413kWh

68kWh to Eddi for August, 24 days with 0 import, Passed 4MWh for 2024.

2024 - Monthly PV Savings :: Expected FIT €73.32 + Money Saved on Energy from PV :: €93.31:: Total €166.63 for August. (FIT@19.5c/kWh, AvgUnitCstSaving@0.31c/kWh)

2024 - Annual PV Saving progress :: (Jan 54.79, Feb 76.26, Mar 115.33, Apr 186.31, May 212.40, Jun 219.40, Jul 184.03, Aug 166.63) = €1215.15 Total saved/earned due to PV in 2024.

bilasy

Thanks for the useful info , who is your supplier?

2smiggy

7.48kw - 4.4 sw 3.08 ne

5kw battery

692kwh produced

420kwh exported

272kwh self used

14kwh imported

North Cork

bilasy

https://www.boards.ie/discussion/comment/122573253#Comment_122573253

thanks for the useful info, who is your current supplier?

bilasy

https://www.boards.ie/discussion/comment/122572503#Comment_122572503

what website are you using to extract these data please?

zoom_cool

North Meath 4.8Kwp array PV production for August 552kwh which I think is pretty good for my SSW array.

allinthehead

https://www.boards.ie/discussion/comment/122575705#Comment_122575705

Electric Ireland

loyatemu

6.5kWp E/W in north Wicklow

685kW/h in August

(today was one of the worst days since I had it installed though…)

bullit_dodger

https://www.boards.ie/discussion/comment/122575715#Comment_122575715

Solar Energy Calculator and Mapping Tool - PVGIS

Only does 1 aspect arrays, so if you have 2 arrays you'll have to individually put them in and then add them up yourself, but it gives pretty good approximations for what you will get with your Kwp and orientation (north,south, etc) and slope

ne_dami

August: 668.17kWh generated from a 6.88kWp East/West system in Kerry

championc

August Stats - Sth Dublin

Generation – 424.2 kWh
4.0kWp N - 329.8 kWh
Eddi - 8.9 kWh
Zappi - 86.8 kWh

Meter Readings 07594 (H+|1 7469 - up 874 / H+|2 109 - up 4 / H+|3 14 - up 0 / H- 6029 - up 896) - Gas 7832 (up 0 - Gas is turned OFF)

Pinergy - Imported 842 @ 5c & 1 @ 40c / Exported 1039 @ 25c - Credit €217.25

Totals so far:

2.7kWp main roof + 1.2kWp on shed (S)

Month    |   2020 |   2021 |   2022 |   2023 |   2024 |

---------+--------+--------+--------+--------+--------+

January  |     75 |     56 |     81 |     76 |     71 |

February |    122 |    142 |    111 |    134 |    144 |

March    |    200 |    269 |    370 |    245 |    237 |

April    |    279 |    373 |    372 |    320 |    366 |

May      |    396 |    430 |    445 |    449 |    407 |

June     |    264 |    425 |    425 |    341 |    423 |

July     |    261 |    387 |    407 |    341 |    401 |

August   |    254 |    264 |    435 |    332 |    424 |

September|    268 |    248 |    242 |    279 |        |

October  |    151 |    185 |    221 |    173 |        |

November |     90 |     78 |     96 |     89 |        |

December |     56 |     52 |     55 |     44 |        |

---------+--------+--------+--------+--------+--------+

Total    |   2.41 |   2.90 |   3.26 |   2.80 |   2.47 |

4.0kWp on main roof (N)

Month    |   2023 |   2024 |

---------+--------+--------+

January  |        |     27 |

February |        |     65 |

March    |        |    135 |

April    |        |    265 |

May      |        |    342 |

June     |    441 |    427 |

July     |    385 |    373 |

August   |    301 |    330 |

September|    163 |        |

October  |     83 |        |

November |     38 |        |

December |     24 |        |

---------+--------+--------+

Total    |   1.61 |   1.96 |

celtic_oz

6.2Kwp Monaghan - August .. 615kwh about the same as last year which was 621Kwh, which was way worse than the year before in 2022 when I got 769kwh

Exiled Rebel

7.8kWp array (south facing), 5kW hybrid inverter, no battery.

Waterford.

A solid month.

tech

7.9Kw System South Facing with 10Kw Batteries

bullit_dodger

After August being such a good month across most of Europe, Sept sadly was the worst month in awhile for me. If it wasn't for those 4x decent days in around the 16th→19th , it'd be looking at worst ever in 3+ years in terms of percentage actual compared to expected.

Only 83% of PVGIS. :-(

Still, I was net positive for the month in terms of exported verses imported, so hey no €€€ needed to go out. There's always a positive way to spin it - LOL.

6.5kwp split East/West in South Dublin City.

jkforde

Sept. stats.. nice bit up on last year's 568. gave them another wash and mother nature kindly rinsed them. 💦

curioustony

Pretty good month. Thought it was going to be my best September, the last few days clobbered that hope

The buy sell mix is beginning to ramp up the buy side as the battery is not quite sufficient to cover the full day

Still that's 91% @EV rate

And in terms of real money, definitely chipping away at the summer surplus now

Current discount up in a couple of months, hopefully the others follow BGE with hefty discounts...

2smiggy

7.48kw - 4.4 sw 3.08 ne

5kw battery

501 kWh production

260 kWh export

240 kWh self used

81 kWh import

First full year just gone now. In house since early 2023. Here are the electric bills for those interested

€570 Feb 23

€433 April 23

€206 June 23

€167 August 23

End of September panels installed

€141 Oct 23

€237 Dec 23

€390 Feb 24

€146 April 24

-€116 June 24

-€162 August 24

allinthehead

East Cork

10.75kwp

Pv - 849kwh

Import - 360.9kwh

Export - 317.5kwh

Eddi - 54.4kwh

Zappi - 238.6kwh

Granny Charger - 106.8kwh

Aircon - 45.5kwh

Best Day- 16th - 52.4kwh

Worst Day - 4th - 3.6kwh

Self sufficiency- 58%

Self Consumed Production- 63%

rgfuller

35th Month

Dublin - Lucan - September 24 - 7.12kW installed (S: 3.45kW, E: 2.41kW, W: 1.38kW). E&W Optimised. 5KWh Battery, (30 S & 22.5 E/W degree pitch).

Total Generation: 436kWh (291kWh self use (inc. battery), 145kWh to grid)

Best Day: September 16th - 26.8kWh

Worst Day: September 22nd - 1.8kWh

Total Consumption: 462kWh (62% Solar: 38% Grid Import (177kWh))

Milestones & Info:

September 2023 :: Generation 486kWh, Consumption 434kWh

September 2022 :: Generation 355kWh, Consumption 407kWh

42kWh to Eddi for September, Passed 16MWh since install (26th Oct 2021).

2024 - Monthly PV Savings :: Expected FIT €28.28 + Money Saved on Energy from PV :: €90.21:: Total €118.49 for September. (FIT@19.5c/kWh, AvgUnitCstSaving@0.31c/kWh)

2024 - Annual PV Saving progress :: (Jan 54.79, Feb 76.26, Mar 115.33, Apr 186.31, May 212.40, Jun 219.40, Jul 184.03, Aug 166.63, Sep 118.49) = €1333.64 Total saved/earned due to PV in 2024.

ECO_Mental

582 kWh for September just about an average September compared to the last 3 years..only 80 kWh behind last years cumlative, but 530 kWh behind 2022 (about 9% less) at this stage of the year.

ionapaul

For September:

468kWh generated - 6.72kW system facing ESE in South Dublin.

233kWh consumed.

Generation WAY down on September 2023, which was 596kWh.

In September, self-used 27.2% of electricity generated and fed in the other 340kWh (no battery).

Since initial installation on March 7 2023, a total of 11.42MWh generated, 7.96MWh fed to grid, with a self-use ratio of approximately 30%.

championc

September Stats - Sth Dublin

Generation – 230.4 kWh
4.0kWp N - 143.1 kWh
Eddi - 31.5 kWh
Zappi - 89.1 kWh

Meter Readings 08424 (H+|1 8288 - up 819 / H+|2 121 - up 12 / H+|3 15 - up 1 / H- 6502 - up 473) - Gas 7832 (up 0 - Gas is turned OFF)

Pinergy - Imported 819 @ 5c & 13 @ 40c / Exported 473 @ 25c - Credit €72.09

*** NEW *** Vaillant Heatpump - Consumed 46kWh / Yield 181kWh (from 15 Sept)

Totals so far:

2.7kWp main roof + 1.2kWp on shed (S)

Month    |   2020 |   2021 |   2022 |   2023 |   2024 |

---------+--------+--------+--------+--------+--------+

January  |     75 |     56 |     81 |     76 |     71 |

February |    122 |    142 |    111 |    134 |    144 |

March    |    200 |    269 |    370 |    245 |    237 |

April    |    279 |    373 |    372 |    320 |    366 |

May      |    396 |    430 |    445 |    449 |    407 |

June     |    264 |    425 |    425 |    341 |    423 |

July     |    261 |    387 |    407 |    341 |    401 |

August   |    254 |    264 |    435 |    332 |    424 |

September|    268 |    248 |    242 |    279 |    230 |

October  |    151 |    185 |    221 |    173 |        |

November |     90 |     78 |     96 |     89 |        |

December |     56 |     52 |     55 |     44 |        |

---------+--------+--------+--------+--------+--------+

Total    |   2.41 |   2.90 |   3.26 |   2.80 |   2.70 |

4.0kWp on main roof (N)

Month    |   2023 |   2024 |

---------+--------+--------+

January  |        |     27 |

February |        |     65 |

March    |        |    135 |

April    |        |    265 |

May      |        |    342 |

June     |    441 |    427 |

July     |    385 |    373 |

August   |    301 |    330 |

September|    163 |    143 |

October  |     83 |        |

November |     38 |        |

December |     24 |        |

---------+--------+--------+

Total    |   1.61 |   2.11 |

SD_DRACULA

Not as bad of a month as expected, brutal towards the end though

allinthehead

https://www.boards.ie/discussion/comment/122680208#Comment_122680208

That export is nuts🤣

loyatemu

a lot of very dull (<5kWh) days in September, this is our first year with solar so I don't know if this is a good or bad result (6.5kWp E/W in Wicklow)

allinthehead

https://www.boards.ie/discussion/comment/122680324#Comment_122680324

Looks about right for your system size and orientation.👍️

SD_DRACULA

https://www.boards.ie/discussion/comment/122680263#Comment_122680263

Going to miss it from this month on 😫 the countdown to house shading has begun

bullit_dodger

https://www.boards.ie/discussion/comment/122680344#Comment_122680344

Yup, I've a 6.5Kwp setup (exactly E/W) in south Dublin city and only got 357kwh. Your doing pretty well there with 445kWh considering your only just down the road. I do however have the clouds roll off the Dublin hills beside me…..always seem to linger about in it's only little microclimate :-(

iwasliedto

South dublin, 10kwp panels with 5kwh inverter. Seems like it was a duller month on the east coast than other parts of the country.