Solar PV Performance Thread - Post your monthly output

irishchris · 01-12-2023 11:08am

November 2023

384 Kwh generated

256kwh exported - €64 FIT

327kwh imported - €24.30

9.86kwp south/south west. Galway

THE ALM · 01-12-2023 11:29am

South Roscommon, 8.16Kwp, facing 210° at 35°, 9.6kWh battery

Total generation 316.40kWh (prediction at 292.1kWh, last year 351.5kWh)

Consumed 845.70kWh (62% self use).

Energy from Grid 669kWh

Energy to Grid 120kWh

To the Eddi 64.60kWh

To the Zappi 476.90Wh (mostly now night rate)

To the Battery 210.60kWh

From the Battery 207.70kWh

Best day 3rdwith 23.8kWh

Worst day 22nd with 1.5kWh

Energy exported would have generated €28.80 at Energia FIT rate

That concludes our second full year. Was a poorer year than 2022 with 7511.06kWh generated '23 vs 7945.39kWh for '22 and was a fairly dull summer when compared to last year and it felt it.

paulbok · 01-12-2023 12:12pm

6.84kWp south facing, Roscommon. 4.8kw battery.

Nov 2023

259kWh generation - Forecast 258.8kWh - Last year = 268kWh

Total consumption 623kWh.

48.3kWh to Eddi

21 kWh exported

358kWh imported (no day/night meter)

20kWh generated best day (7th)

1.0kWh generated worst day (13th) - power out most of day due to storms, so should have been better. true worst= 1.2kWh, 18th & 23rd

ECO_Mental · 01-12-2023 12:15pm

360 kWh from my 6.1 kWp system here in Cork.

25% better than last November and way over the estimate from PVGIS

Novemeber was pretty good really here, had a good few days that were over 20 kWh which is about 50% of my total max summer daily output of around 44 kWh.

rgfuller · 01-12-2023 12:39pm

25th Month

Dublin - Lucan - November 23 - 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: 179Wh (178kWh self use (inc. battery), 1kWh to grid)

Best Day: Nov 7th - 13.7kWh

Worst Day: Nov 26th - 1.0kWh

Total Consumption: 466kWh (38% Solar: 62% Grid Import (291kWh))

Milestones & Info:

Last Year Nov 2022 :: Generation 219kWh, Consumption 420kWh

27kWh to Eddi for November

2023 - Monthly PV Savings :: Expected FIT €0.24 + Money Saved on Energy from PV :: €62.30 :: Total €62.54 for Nov. (FIT@0.24c/kWh, AvgUnitCstSaving@0.35c/kWh*) *Increased Avg Unit Cost Rate as importing more costly units.

2023 - Annual PV Saving progress :: (Jan 49.41, Feb 87.25, Mar 92.66, Apr 138.62, May 202.72, June 201.62, July 159.87, Aug 145.75, Sep 113.61, Oct 71.24, Nov 62.54 ) = €1329.29

Thewitheredowl · 01-12-2023 1:51pm

2 installations

4.2kWp south facing in Dublin south

PVGIS Forecast: 185kWh

Actual: 183 kWh

6.88kWp south facing Dublin mountains

PVGIS Forecast: 251kWh

Actual: 182kWh

DC999 · 01-12-2023 2:00pm

https://www.boards.ie/discussion/comment/121441884#Comment_121441884

The larger S only produced the same as the smaller S. Do you know why that is?

Are the panels flatter so the lower winter sun reduces the output, or is there a lot more shading at that site? If it's neither, there is something else amiss maybe.

Thewitheredowl · 01-12-2023 2:24pm

https://www.boards.ie/discussion/comment/121441924#Comment_121441924

The 2nd larger installation is in the Dublin mountains, so I think it suffers with extra cloud cover and it takes the sun a little longer to emerge in the mornings. I don't think PVGIS takes that into account. I'm looking forward to seeing how it does with the higher sun in the Spring/Summer.

It was only installed on 20th Oct and it did 135kW between then and the month end and the prediction was 365kWh for the entire month.

cython · 01-12-2023 2:47pm

4.86 kWp system, 2.835kWp south, 2.025kWp west, located in Dublin 15. No battery or Eddi.

139.59kWh produced in November, 59.19kWh consumed, 80.4kWh exported, 177.37kWh imported, total consumption 236.56kWh.

I might just skip checking in at the end of December, such has been the drop off in the last week or two in particular and that likely won't improve until a good bit into next year.....

Dothehustle · 01-12-2023 10:57pm

4.7kWp system 3.4kWp east 1.3kWp West

Solar - 94.34 kWh

To Home 51.80 kWh To Battery 11.62 kWh To Grid 30.92kWh

Best day 3th of November 6.22kWh

Worst day 26th of November0.82kWh

August* 223.60 Sept 298.81 Oct 179.61 Nov94.34

Total production from 16 Aug 796.36 kWh

cc · 02-12-2023 1:28am

3.2kWp system, 2.0 SW & 1.2 NE. 125kWh produced (Cork)

championc · 02-12-2023 1:47pm

Third month on Pinergy - Imported 420 @ 5c & 3 @ 40c / Exported 63 @ 27c - Cost €5.19 (Deemed Export would have been about €12 but Export still worth €17)

November Stats

Generation – 88.81 kWh
4.0kWp N   - 37.5 kWh
Consumed   - 438.32 kWh
Import     – 423.03 kWh
Export     – 19.18 kWh
Eddi       - 40.1 kWh
Zappi      - 118.9 kWh

Meter Readings 00839 (H+|1 829 - up 431 / H+|2 8 - up 3 / H+|3 1 - up 0 / H- 459 - up 63) - Gas 7315(up 104)

Totals so far:

2.7kWp (S) + 1.2kWp on shed, 20kWh battery, 22 deg Slope, Sth Dublin

Month    |   2020 |   2021 |   2022 |   2023 |
---------+--------+--------+--------+--------+
January  |     75 |     56 |     81 |     76 |
February |    122 |    142 |    111 |    134 |
March    |    200 |    269 |    370 |    245 |
April    |    279 |    373 |    372 |    320 |
May      |    396 |    430 |    445 |    449 |
June     |    264 |    425 |    425 |    341 |
July     |    261 |    387 |    407 |    341 |
August   |    254 |    264 |    435 |    332 |
September|    268 |    248 |    242 |    279 |
October  |    151 |    185 |    221 |    173 |
November |     90 |     78 |     96 |     89 |
December |     56 |     52 |     55 |        |
---------+--------+--------+--------+--------+
Total    |   2.41 |   2.90 |   3.26 |   2.75 |

4.0 (N) ** NEW **

Month    |   2023 |
---------+--------+
January  |        |
February |        |
March    |        |
April    |        |
May      |        |
June     |    441 |
July     |    385 |
August   |    301 |
September|    163 |
October  |     83 |
November |     38 |
December |        |
---------+--------+
Total    |   1.37 |

DC999 · 02-12-2023 2:54pm

https://www.boards.ie/discussion/comment/121445350#Comment_121445350

Your North stats are very interesting. Where are they installed? Main roof? Asking as I assumed the N output would be way less.

Looks like N produced the same as the 3.9kWp strings during the summer months.

Would a shed roof that doesn't get sun act like N? I could diy that and it's the only space I've left.

curioustony · 05-12-2023 9:07am

Alpha ESS changed their API, need to accelerate the android app development. Still a work in progress. But progress :-)

Given how I felt, it is a pleasant surprise how Nov compared with previous years (for me). The bigger battery accounts for the reduction in feed, I think.

Well into my winter shading. My guess is ~40% lost due to trees and low sun. Lower string impacted more.

The buy/use mix continues to lean towards more expensive afternoon/evening electricity

And in terms of real money, still on track for net zero (give the electricity credits)

ionapaul · 05-12-2023 10:55am

For November:

224kWh generated - 6.72kW system facing ESE in South Dublin.

400kWh consumed.

In November, self-used 47.79% of electricity generated, and fed in the other 117kWh (no battery).

Since initial installation on March 7 2023, a total of 5.45MWh generated, 3.80MWh fed to grid, 3.22MWh consumed (self generated & imported), with a self-use ratio of 30.28%.

celtic_oz · 05-12-2023 11:29pm

6.2Kwp half SSE,half SSW, Monaghan

190Kwh generated in November, not a great year up here

championc · 05-12-2023 11:49pm

https://www.boards.ie/discussion/comment/121445503#Comment_121445503

Yes, spot on. On a crap day, the north generated the same per kWp as a Sth

And yes too, my south shed totally shaded acts like my North.

I actually have the 4 panels on it in parallel, which isn't great really

2smiggy · 06-12-2023 9:03am

203 kwh generated

150 kwh self used

53 kwh exported

386 kwh consumed

7.48 KW system , 4.4 SW 3.08 NE , 5KW battery

North Cork

NinjaTruncs · 31-12-2023 6:59pm

First full month with my system, 4.3Kwh south facing, South Dublin

88Kwh generated.

25.5Kwh exported

It can only get better from here.

allinthehead · 31-12-2023 7:25pm

55.5 kwh in Cork. Direct sun doesn't even hit them this time of year.

bullit_dodger · 31-12-2023 8:29pm

Pretty poor month even considering it was December.

Only managed to get to 90.7% of PVGIS. I was up 12% over last years numbers but considering I added 3 panels last April, which was 22% increase....overall it's down on last year too. I miss those days of 4-5kw pumping in hour after hour.

My shed chipped in with 29.78 kWh so 94Kwh for the month.

Panrich · 31-12-2023 8:46pm

126kWh from a 6.45kWp array SSE facing in Meath. A fair bit of shadowing from neighbours trees doesn't help at this time of year.

Bif · 31-12-2023 9:00pm

158 kWh for Dec. from 6.9kwp South facing set up.

micks_address · 31-12-2023 9:24pm

95.7kwh from 4kwp south east, 3kw north west.

mrm · 31-12-2023 11:55pm

Mayo 6.6kW array (4.6 SE/ 2.0 NE)

138kWh Dec 2022

85kWh Dec 2023

Total for 2023 was 5303kWh (PVGIS prediction was 4991kWh).

alexf1 · 01-01-2024 10:55am

December 2023

170.45kWh generated

6.4kWp South facing in west Dublin

ECO_Mental · 01-01-2024 11:15am

212 kWh on my 6.1 kWp system south facing in Cork just a tickle over my predicted

Total for 2023 was 6,411 kWh which is about 300 kWh over the predicted but 8.5% less than 2022 where I generated 7,010 kWh

Over all excluding May last year, which was outstanding, the year on a whole was poor to average roll on 2024

championc · 01-01-2024 3:15pm

December Stats

Generation – 43.58 kWh
4.0kWp N   - 23.5 kWh
Consumed   - 523.31 kWh
Import     – 553.5 kWh
Export     – 3.56 kWh
Eddi       - 45.0 kWh
Zappi      - 152.2 kWh

Meter Readings 01447 (H+|1 1387 - up 558 / H+|2 50 - up 42 / H+|3 9 - up 8 / H- 500 - up 41) - Gas 7429 (up 114)

Totals so far:

2.7kWp (S) + 1.2kWp on shed, 20kWh battery, 22 deg Slope, Sth Dublin

2.7kWp (S) + 1.2kWp on shed, 20kWh battery, 22 deg Slope, Sth Dublin


Month    |   2020 |   2021 |   2022 |   2023 |
---------+--------+--------+--------+--------+
January  |     75 |     56 |     81 |     76 |
February |    122 |    142 |    111 |    134 |
March    |    200 |    269 |    370 |    245 |
April    |    279 |    373 |    372 |    320 |
May      |    396 |    430 |    445 |    449 |
June     |    264 |    425 |    425 |    341 |
July     |    261 |    387 |    407 |    341 |
August   |    254 |    264 |    435 |    332 |
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 |

.

4.0 (N) ** NEW **


Month    |   2023 |
---------+--------+
January  |        |
February |        |
March    |        |
April    |        |
May      |        |
June     |    441 |
July     |    385 |
August   |    301 |
September|    163 |
October  |     83 |
November |     38 |
December |     24 |
---------+--------+
Total    |   1.61 |

Dothehustle · 01-01-2024 3:57pm

4.7kWp system 3.4kWp east 1.3kWp West

Solar - 49.09 kWh

To Home 35.22 kWh To Battery 10.33kWh To Grid 3.54kWh

Best day 11th of December 3.39kWh

Worst day 6th of December0.32kWh

August* 223.60 Sept 298.81 Oct 179.61 Nov94.34 Dec 49.09

Total production from 16 Aug 845.45 kWh

curioustony · 02-01-2024 8:06am

AlphaESS had a DNS challenge yesterday. Very frustrating. Can definitely see the merits of a fully local solution. App now in internal testing, and open source.

Not a great December, worst one for me so far, but not by much.

From April 2001, on the upswing now

Lots of expensive electricity used as the battery is not sufficient at this time of the year

The bottom line is I'm still on track for net zero, considering the €450 from the state. €455 in credit, and no payments on my account since I switched in Dec '22.

Solar PV Performance Thread - Post your monthly output

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