Solar PV Performance Thread - Post your monthly output

newhouse87 · 31-03-2025 06:13PM

658kwh for March. 7.92kwp south. Ground tubs. Last 10 days made it v good.

tommythecat · 31-03-2025 07:08PM

325kwh for March on a 4kwp system. 94kwh better than March 2024. Quite the difference a year can make!

GhostInTheRuins · 31-03-2025 07:57PM

441kWhs this month. First March with the panels so I’ve nothing to compare it to but it seems really good to me. Much higher than what PVIGS predicted.

4.45kwp s/se

munsterfan2 · 31-03-2025 08:36PM

7.2kw S facing Louth/Meath border. Generated 628kwh, exported 378kwh, imported 1302kwh ( 1252kwh EV Rate, 50kwh Day Rate - all electric house, heat pump & 2 x EV)

Exiled Rebel · 31-03-2025 08:50PM

7.79kWp South facing, West Waterford.

All electric bungalow.

Monthly bill has come to €19.28. Had it not been for solar the bill would have been €125.

€87 worth of power exported.

What is eye opening from my perspective was how poor March 2024 was. I exported just 287kWh compared to 435kWh this year.

bullit_dodger · 31-03-2025 10:36PM

Likewise a very solid March. 6.5Kwp split East/West (exactly) in South Dublin city.

Highest day in March ever (yesterday) with 24.5Kwh. Pretty happy with March as it came in at 115% of PVGIS.

Tomorrow (Tues) and Wed this week looking like good candidates to beat that 24.5Kwh for me, though my all time high for an April day is 30.8Kwh - but yeah, things rocking well now on the E/W split. April should be off to a good start.

Shed (2.3Kwh south facing) chipped in with another 165Kwh, so 565Kwh in total for March. That's 8.8Kwp in total.

deravarra · 01-04-2025 07:46AM

Folks - a suggestion:
The google sheets spreadsheet shows a lot of inactive folks - those who have not updated anything for more than a year.
Would a clean up be a good idea - rather than having a lot of blank spaces on that spreadsheet?

2024 shows 70 rows, but only 22 have updated for any of the months.

2025 shows 72 rows, but only 13 have updated for any of the months.

Megastreisand · 01-04-2025 07:50AM

Screenshot_20250401_074050_FusionSolar.jpg

My 3rd and by far best March yet, 676kWh from a 9kWp E/W split compared to 539kWh in March '24 and 557kWh in March '23.

Coastal Northeast.

irishchris · 01-04-2025 08:40AM

824 kWh generated for march 2025.

9.9kwp South/west Galway

Screenshot_2025-04-01-08-37-51-542_io.homeassistant.companion.android.jpg

kris_2021 · 01-04-2025 10:43AM

https://www.boards.ie/discussion/comment/123315605#Comment_123315605

where I can find this spreadsheet?

GhostInTheRuins · 01-04-2025 11:06AM

https://www.boards.ie/discussion/comment/123316036#Comment_123316036

https://www.boards.ie/discussion/2058225023/solar-performance-spreadsheet-analysis-and-data-sharing/p1

As deravarra said it's been mostly abandoned. It could do with a clean up by removing posters that don't contribute to it anymore.

rgfuller · 01-04-2025 11:11AM

41st Month

Dublin - Lucan - March 25 - 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: 470kWh (317kWh self use (inc. battery), 153kWh to grid)

Best Day: March 30th - 29.7kWh

Worst Day: March 22nd - 4.2kWh

Total Consumption: 500kWh (62% Solar: 38% Grid Import (190kWh))

Milestones & Info:

March 2024 :: Generation 349kWh, Consumption 538kWh
March 2023 :: Generation 407kWh, Consumption 438kWh
March 2022 :: Generation 610kWh, Consumption 474kWh

58kWh to Eddi for March.

2025 - Monthly PV Savings :: Expected FIT €30.60 + Money Saved on Energy from PV :: €79.25:: Total €109.85 for March. (FIT@20c/kWh, AvgUnitCstSaving@0.25c/kWh)*

2025 - Annual PV Saving progress :: (Jan 41.40, Feb 51.05, Mar 109.85) = €202.30 Total saved/earned due to PV in 2025.

deravarra · 01-04-2025 01:48PM

https://www.boards.ie/discussion/comment/123316124#Comment_123316124

if we could get a consensus, I can do a bit of housekeeping on this… just for 2024 and 2025

SD_DRACULA · 01-04-2025 01:51PM

The summer pump has begun 💪

CONSI · 01-04-2025 01:52PM

606.86 Limerick S facing, 6kw system, topped out at 37.2 on 19/03…up from 509.46 last year in March

loyatemu · 01-04-2025 01:54PM

491kW/h from 6.45kWp in Wicklow, 150% of Jan+Feb combined.

only installed midway through March last year so I don't have a direct comparison, but it was a fairly sunny month with a lot of very productive days.

GhostInTheRuins · 01-04-2025 03:23PM

https://www.boards.ie/discussion/comment/123316658#Comment_123316658

I'm only a blow-in so my opinion doesn't mean much. You'd have to ask bullit_dodger I suppose.

deravarra · 01-04-2025 06:32PM

https://www.boards.ie/discussion/comment/123317009#Comment_123317009

he hasnt posted his readings since November 2023. I would say he isnt too bothered either way. The sheet should be for the use of those active folks.

bullit_dodger · 01-04-2025 06:35PM

https://www.boards.ie/discussion/comment/123317009#Comment_123317009

I'm guilty here myself of not updating it recently. Must do that now. I'd say there are others in the same boat as me. Let's make an effort peeps to update with any missing data you might have, and what I suggest is that we create a new sheet (I can do it) which is inactive users, and then move the orphaned records over there.

Better than doing an outright delete on the rows, as we'd still have the data should anyone want to come back.

deravarra · 01-04-2025 06:39PM

https://www.boards.ie/discussion/comment/123317555#Comment_123317555

excellent. thanks for that

championc · 01-04-2025 09:51PM

https://www.boards.ie/discussion/comment/123316144#Comment_123316144

I actually went back recently and rechecked my March 2022 and it was correct. It was a spectacular second half of the month that year. You were possibly questioning it too.

curioustony · 01-04-2025 10:24PM

A good month, not as good as '22.

2025 has 1.58 x kWp of the previous years. Not a direct comparison anymore

The buy sell mix is excellent for so early in the year

On real money I am on the wrong plan

The extra panels and the car charging ~117kWh, really swing this to Pinergy

ECO_Mental · 02-04-2025 08:45AM

560 kWh March 2025 (6.1kWp South facing Cork)

Not bad March '23 was only 490kWh so a big improvement.

April starting off good.

CivilEx · 02-04-2025 12:44PM

March: 556kWh from 7kWp. Ground mounted, Mayo

championc · 02-04-2025 01:48PM

Great second half of the month, but well short of March 2022

February Stats - Sth Dublin

3.9kWp S – 318.8 kWh +
4.0kWp N - 152.5 kWh
Eddi - 39.0 kWh
Zappi - 221.1 kWh

Meter Readings 15484 (H+|1 14897 - up 1147 / H+|2 514 - up 5 / H+|3 72 - up 1 / H- 7845 - up 493)

Pinergy - Imported 1153 @ 5c & 111 @ 40c / Exported 171 @ 25c - Cost €59.30

Vaillant Heatpump - Consumed 256kWh / Yield 1146kWh (OpenEnergyMonitor) - COP 4.48

Totals so far:

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


Month    |   2020 |   2021 |   2022 |   2023 |   2024 |   2025 |

---------+--------+--------+--------+--------+--------+--------+

January  |     75 |     56 |     81 |     76 |     71 |     82 |

February |    122 |    142 |    111 |    134 |    144 |    118 |

March    |    200 |    269 |    370 |    245 |    237 |    319 |

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 |    216 |        |

November |     90 |     78 |     96 |     89 |     79 |        |

December |     56 |     52 |     55 |     44 |     49 |        |

---------+--------+--------+--------+--------+--------+--------+

Total    |   2.41 |   2.90 |   3.26 |   2.80 |   3.05 |   0.52 |

.

4.0kWp on main roof (N) 


Month    |   2023 |   2024 |   2025 |

---------+--------+--------+--------+

January  |        |     27 |     25 |

February |        |     65 |     41 |

March    |        |    135 |    152 |

April    |        |    265 |        |

May      |        |    342 |        |

June     |    441 |    427 |        |

July     |    385 |    373 |        |

August   |    301 |    330 |        |

September|    163 |    143 |        |

October  |     83 |     84 |        |

November |     38 |     33 |        |

December |     24 |     20 |        |

---------+--------+--------+--------+

Total    |   1.61 |   2.24 |   0.22 |

rgfuller · 02-04-2025 05:13PM

https://www.boards.ie/discussion/comment/123318205#Comment_123318205

Oh yeah, I double and triple checked.

discostu1 · 02-04-2025 05:38PM

I got Solar in On 7th of May 24 so nothing to compare with. Reading this thread March 25 seems to have been and excellent month .I have 15 panels South facing 5.5kwp and got 561kwh for the month , pretty thrilled with that

celtic_oz · 02-04-2025 10:47PM

6.2Kwp Monaghan

2022 is a distant dream

daheff · 03-04-2025 04:34PM

555 kWh for me for March. 6.96kWh system facing SSE.

over 100kWh already for April and we're only 3 days in.

This is going to be my first spring/summer with a system. solis inverter fan going mad all day with the amount of power being generated.

domeld · 04-04-2025 01:42PM

618 kWh - 7,8 kWhp

Solar PV Performance Thread - Post your monthly output

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