Solar PV Performance Thread - Post your monthly output

cc

391 kWh off 2.0kwp SW and 1.2kwp NE in Cork. That last 9 kWh eating me up inside!

ECO_Mental

Epic month 922 kWh generated from my 6.1kWp system in Cork.

3 kWh off my best month ever (Aug 22) and I used 49% which I am happy enough with since I don't have a battery. Month was 25% over the estimate

redmagic68

8.4 kwp E/W Louth

Generated -- 1039 kwh

Grid Import -- 131 kwh

Grid Export FIT -- 341 kwh

Best Day 30th 53.51 kwh

worst day 20th 15.85 kwh.

import was all in the first half of the month. Lessons learned it’s been pretty much what ever the inverter needs since.

export could be higher also but on day/night so using and abusing.

celtic_oz

6.2kwp Monaghan, 780kwh generated 😀.. 18% exported 😒

irishchris

6.9 S/SW kwp

2.88 west kwp

1,302 kWh produced

168 euro FIT

€2.83 import

allinthehead

3.2 kwp SE, .8kwp NW and .8kwp W(vertically mounted), 15 kwh Battery

Produced 586.6 kwh

Imported 165.9 kwh (All at 12.5 cent per kwh)

Exported 101.9 kwh (FIT at 21 cent per kwh)

151 kwh into the car.

Best day 30th 28.5 kwh

Worst day 4th 5.3 kwh

kabakuyu

Just had my best month since installation in May 21.

2.5 kwp system facing south produced 380kwh.

Previous best was Aug 21 with 366kwh.

domeld

June 2023

5.6 kWhp SSW system

neil_hosey

South Kildare

East: 3.4 KW

South: 4.2KW

Month of May: 997 KW Generated

With the glorious weather towards second half of May, Im getting very interested in the curve across the day for generation of my easy facing (blue line) and south facing (orange line).

The east facing gives us a good hit in the morning time from 6 onwards. I think i need more optimizers on south facing as I have a peak roof separating 2 parts of the south facing panels, but im still very happy with results!

bullit_dodger

https://www.boards.ie/discussion/comment/120687022#Comment_120687022

The east facing gives us a good hit in the morning time from 6 onwards. I think i need more optimizers on south facing as I have a peak roof separating 2 parts of the south facing panels, but im still very happy with results!

Why do you think that? Both curves look good to me. Your max value of your

east array was (roughly) 2.8Kw out of 3.4Kwp = 82%

south array was (again roughly) 3.6Kw out of 4.2Kwp = 86%

So your south array is operating very similarly to your east array. Also both curves show nice smooth curves. The sudden spike at 6:30am is probably when the sun rises above a house or something. Looks good to me....that's not to say of course that there isn't shading only that I don't see it from the curves that you have an issue

neil_hosey

https://www.boards.ie/discussion/comment/120687436#Comment_120687436

Thanks thats good to know.. i was close to getting someone out to add additional optimizers but i might leave it based onyour comments.

Eggs For Dinner

May 23

4.3kw/h system, 12 panels, no battery, south facing, Wexford

Generated 734

Imported 125

Exported 465

curioustony

Almost matched my record day from June '22 and my best month from May '21 (654 kWh)

Purchase shifting is as good as it gets

And in real money, my estimated 2 month bill excluding PSO stuff

micks_address

My ei bill should be interesting next week. 890kwh generated in June. 7kwp split 4 South east, 3 north west, north county Dublin

paulbok

6.84kWp south facing, Roscommon. 4.8kw battery.

Jun 2023

933kWh generated

Had a number of power outages with the thundery weather and crappy local grid the last 2 weeks so could have been closer to the magical 1mWh for the month.

Had my record day 2nd, and it was my record month, so can't complain.

100% of total consumption, self produced (have backwards spinning meter)

Total consumption 739kWh.

136kWh to Eddi (mostly using immersion for HW during the summer, that's 13l of oil saved)

310 kWh exported

60kWh imported (no day/night meter)

47.2kW generated best day (2nd Jun)

10kWh generated worst day (30th)

lightspeed

I live in Balbriggan which is plagued by seagulls. They nest on my roof and neighbours every year and present all year.

Right now I'm assuming it's enevitable that they will poo all over them and prevent them from working so solar panels would be a wasted investment.

If I'm wrong, can anybody educate how the above is not going to be an issue or how it's solved?

Mr Q

1063kWh in June. Better than expected with the variable weather.

4kW East and 4kW West

championc

June Stats

Generation 3.9kWp S – 341.84 kWh / 4.0kWp N  - 441.4 kWh
Consumed  - 233.99 kWh
Import   – 9.35 kWh
Export   – 260.11 kWh
Eddi    - 19.6 kWh
Zappi   - 189.2 kWh

Meter Readings 06910 (01181 Day - up 3 / 05729 Night - up 0) - Gas 7087 (up 15)

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 |        |
August   |    254 |    264 |    435 |        |
September|    268 |    248 |    242 |        |
October  |    151 |    185 |    221 |        |
November |     90 |     78 |     96 |        |
December |     56 |     52 |     55 |        |
---------+--------+--------+--------+--------+
Total    |   2.41 |   2.90 |   4.61 |   1.56 |

Shed 4 in parallel, and output is quite low, so might need a new plan for that

4.0 (N) ** NEW **

Month    |   2023 |
---------+--------+
January  |        |
February |        |
March    |        |
April    |        |
May      |        |
June     |    441 |
July     |        |
August   |        |
September|        |
October  |        |
November |        |
December |        |
---------+--------+
Total    |   0.44 |

redmagic68

8.4 kwp E/W Louth

Generated -- 1121.85 kwh

Grid Import -- 69.65 kwh

Grid Export FIT -- 434.13 kwh

Best Day 3rd 53.75 kwh 

worst day 27th 10.38kwh. 

We a have D/N meter so FIT is calculated and we don’t have an EV, I boost the hot water with an immersion switch but it’ll be interesting to see what the difference is between the calculated units and the actual units fed in over the year even with the immersion running.

Energia bill for May-June was €10.18. We’d have been in credit if we were paid by unit but I assume it’ll balance out.

eclipsechaser

1280kWh generated though I was offline for a day so it would have been just a touch over 1300kWh. Interestingly that was lower than May.

10.4kWp south facing in south Dublin.

the_amazing_raisin

June stats for a 6kWp south facing array in North Dublin. Lots of export because I was on holiday for a week, kinda wish I had a smart meter for once

Generated: 914.5kWh

Consumed: 438.27kWh

Exported: 411.7kWh

Imported: 21kWh (4kWh Day, 17kWh Night, taken from meter readings so slightly off the Solar statistics)

And some cost estimation

Electricity usage cost: €3.84

Standing charge: €25

Export: €33

Bill for June (Import+Standing charges-Export): -€4.03

Estimated bill without solar: €223

Savings for June: €227.03

THE ALM

Thought it was going to be a record month for us but alas yesterday let us down.

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

Total generation 1078.37kWh (prediction at 865.4kWh, last year 936kWh)

Consumed 788.39kWh (74% self use).

Energy from Grid 1kWh

Energy to Grid 285kWh

To the Eddi 138.2kWh

To the Zappi 337.7Wh (all from solar)

To the Battery 130.18kWh

From the Battery 122.65kWh

Best day 2nd with 55.3kWh

Worst day 30th with 8.69kWh

Energy exported would have generated €51.30 at Energia FIT rate if on a smart meter, we are D/N.

super_dad

First full calendar month since install.

619 KWH generated from a 4.1kwp roof mounted south facing array in Donegal.

installers predicted 498 kWh for June. Happy with this output.

best day 6/6/23 —-30.4 kwh

worst day 27/6/23 ——3.4 KWh

Ha Long Bay

7.2kwp south facing in north Dublin. 931kWh generated and best day was 14th June generating 45.8 kWh.

DC999

https://www.boards.ie/discussion/comment/120791537#Comment_120791537

Class. Welcome

the_amazing_raisin

https://www.boards.ie/discussion/comment/120791537#Comment_120791537

My generation has been 120% of expected for the past couple of months. I think the calculators are a bit on the conservative side

creativedrinker

2.4kw system facing south in north Dublin, made 302kw for June

Jackson22

Ours was 15% above forecast for the last two months. We were under forecast for 3 months and above for 3 - overall we are running about 5% above forecast for year to date

John mac

So for me . 7.4 split east west at 45°, Mayo

total 910 kWh

Best day 02 =44.8

worst day 30 =6.2

export was 447

Eddi used 109

imported 11.3

redmagic68

Based on everyone’s numbers here and over the last few months and even reading other threads I don’t think I saw a comment where someone regretted installing their system bar one poor install.

It just seems insane that all new builds are not required to have solar covering their calculated annual energy requirement where possible with even an oversupply to offset carbon from the build and supported to do so at the build stage by government.

The economy of scale especially in larger estates where the instal is part of the design and with cables runs easily achieved from first/second fix I’d imagine it could all be achieved with 5-7 year payback.