Solar PV Performance Thread - Post your monthly output

Boscoirl

Boscoirl wrote: »

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

May Stats
4kWp Array SSW
Best day 18.7kWh
Generated: 368kWh*
Eddi: 45.9kWh
Imported: 122.8kwh
Exported: 40.9kWh
Net Import: 81.7k (due to magic meter )

*1 array was down for 4 days at the start of the month, so would have broken the 400 i would estimate

still havent broke the 20kWh mark yet, what i wouldnt give to have the room to have a west pointing array

DrPhilG

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

Generation – 772.2kWh
Export – 83.4kWh
Import – 263.5kWh

Best day - 26th, 43.1kWh
Worst day - 20th, 5.0kWh

Another good month, I had predicted 710 so ended up on about 108% of that. My initial 12 month projection was 4,877kWh and I've done 3,474kWh so far with June & July left. If I hit target in those 2 months I'll end up on almost exactly the target. However with April and May both passing target by 112 and 62kWh respectively, I might just crack the 5k for the calendar year.


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
May - 772.2

ParkRunner

ParkRunner wrote: »

First full month of solar & serious generation. Glad to be able to see the potential of the solar PV system and a bigger proportion of green usage overall.

Generated 740kWh
Consumed 464kWh
Exported 428kWh
Imported 152kWh
Eddie 153kWh
Green 67%

Best day April 24th 37kWh
Worst day April 18th 12.3kWh

A fairly cloudy May in the South East 6kwh system no battery. Good end to the month though. Less oil use in May meant a lot more green energy used to heat the water

Generated 716kWh
Consumed 523kWh (368 green)
Exported 428kWh
Imported 155.5kWh
Eddie 198kWh
Home 325.5
Green 70%

Mickeroo

2020 (5.5 months): 1,254.1kwh

2021
January: 89.0kwh
Feb: 145.7kWh
March: 210.7kWh
April: 504.5kWh
May: 536.2kWh

3.7kWp S/SW facing, Mayo

kabakuyu

2.5 kwp south installed on the 11/5.
21 days in total delivered 267kwh.
High was 18.9kwh on 19/5
Low was 3.00kwh on 27/5
Daily average was 12.7 kwh
Output peaked at 2.77kwh for brief periods.
All in all I am happy with the figures, will see how June stacks up.Think I got solar at the right time, electricity prices are on the up again.:(

SD_DRACULA

Generation – 863kWh
Self Use – 423kWh
Export – 440kWh
Import – 90kWh
EV – 51kWh

Best day - 31st, 44.2kWh
Worst day - 21st, 6.1kWh

7kWp South facing - Dublin

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
May total 345.6kWh

Highest - May 30th (17.5kWh)
Lowest - May 21st (2.6kWh)

May only just overtook April in the last two dates of the month.

17.5kWh still the highest figure for any one day, looking at the graph - there is a bit more possible!

uphillonly

South Dublin 6 kW.
S 2.8 kW, E 3.2 kW. 11.6 kWh battery

Dec 2020: 63.4 kWh
Jan 2021: 78.5 kWh
Feb 2021: 186.7 kWh
Mar 2021: 354.4 kWh
Apr 2021: 589.9 kWh
May 2021: 720 kWh

Highest day: 31st 41.4
Lowest: 21st 6.0.
Self consumption: 88.1%. Exported 85 kWh.
Self sufficient: 84%

A good month, averaging 23 kWh pd. Doubled the battery to 11.6 kWh in April. Have been off-grid for 5 consecutive days a couple of times. Generation peaks at about 6 kW late morning.

slave1

Midlands
4.1kWp SW, 3.3kWp NE
498kW imported (81% Night Rate, mostly EV charging)
860kWh Generated
721kWh consumed
357kWh to Eddi
Highest was 26th, 43kWh
Lowest was 20th, 9.1kWh
59% 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, €89.64

pjordan

Near Westport

4.6kw South facing

Total May 2021: 582.6kw
Best day: 28th May - 29.9kw
Worst day: 21st May - 3.6 kw

samdeluxjones

DrPhilG wrote: »

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

Generation – 772.2kWh
Export – 83.4kWh
Import – 263.5kWh

Best day - 26th, 43.1kWh
Worst day - 20th, 5.0kWh

Another good month, I had predicted 710 so ended up on about 108% of that. My initial 12 month projection was 4,877kWh and I've done 3,474kWh so far with June & July left. If I hit target in those 2 months I'll end up on almost exactly the target. However with April and May both passing target by 112 and 62kWh respectively, I might just crack the 5k for the calendar year.


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
May - 772.2

You do a rough calculation on your excess kWh's fed back into the grid at say a conservative 6c per unit FIT?

handpref

5.4 kwp east west
Even split
East of country

639kwh’s produced in May

Ummagumma_78

5.1 kWp (2.0/3.1 S/W split)
Eddi
2.4 kW battery
Cork
Install 07May21

Generation 478 kW
Best day 26th 33.3 kW
Worst day 27th 4.4 kW

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 |430.96kWh
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

May Generated - 430.96kWh / Consumed - 378.35kWh / Imported - 37.87kWh / Exported - 33.07kw / Eddi - 62kw / Zappi 31kw
Batteries - Charged 188.36kw / Discharged 156.37kw (83%)

Meter Readings 03665 (00820 Day - up 28 / 02844 Night - up 22)

Manic Moran

May, central Texas. Only four cloudless days, but still managed to exceed APR production, with 1.2 MWh. 1.6 consumed, net import of 362.5. 39% of my power was consumed at time of solar generation, the rest was offset to the grid.

Zzippy

Manic Moran wrote: »

May, central Texas. Only four cloudless days, but still managed to exceed APR production, with 1.2 MWh. 1.6 consumed, net import of 362.5. 39% of my power was consumed at time of solar generation, the rest was offset to the grid.

1.6MW consumption! Air conditioning? Marijuana grow house?

DrPhilG

Zzippy wrote: »

1.6MW consumption! Air conditioning? Marijuana grow house?

Texas in May, I'm guessing lots of air con.

graememk

graememk wrote: »

May Prediction 960kwh

8.64kWp on a 6kw inverter,
12 degree roof, NE/SW 50:50
10kwh Battery storage

Seeing a flat top on the curve on the good days, now, was generating at 6kw from about 11:30 - 3pm

The JRC prediction is pretty close, its only 50kwhs out and over a month its hardly 2kwh/day.

Generation : 1114.3kWh
Solar Used Directly : 287.5kWh - €44.28
Solar Used Nightrate : 50.7kWh - €3.75
Battery Charged : 311.7kWh
Battery Discharged Day : 153.9kWh - €39.01
Battery Discharge Night : 99.4kWh - €7.36
EVSE Divert : 179.6kWh - €13.29
Battery Discharged From Grid Charging : 0kWh - €0
Export : 284.8kWh
Total Savings : €103.94

Still using the 15c/7.4 night rate

My total savings are inflated, as nothing is currently running overnight.

Letting the battery discharge on nightrate as I have no problem filling the battery enough to get me to midnight even on poor days (in summer anyway)

highest day was 53.6, lowest was 13.7.

June prediction 941kwh

irishchris

May output: 868.3kwh

Best day: 23rd - 40.4kwh
Worst day 21st - 7.2kwh

3.65kwp SW
2.88kwp West

Manic Moran

DrPhilG wrote: »

Texas in May, I'm guessing lots of air con.

Wait until you see the July and August figures. Nearly 4 MWh, the systems almost never turn off.

Zzippy

Manic Moran wrote: »

Wait until you see the July and August figures. Nearly 4 MWh, the systems almost never turn off.

Wow. Is that for an average size house or a mansion?

Gazzler82

3Kw SSE Cork

May, 310.8kwh
Best 15.7kwh May 30th
Worst 3.2kwh May 27th

A cloudy month I thought

Gazzler82 wrote: »

3kw SSE Cork

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

jimmyging

6.1 kw ground mounted system facing south in wexford
May 895 kw/hr generated
Lost 381 as no battery

Manic Moran

Zzippy wrote: »

Wow. Is that for an average size house or a mansion?

This is Texas. As they say, everything is bigger in Texas. Part of the reason we moved here, much more house for the same amount of money.
It's a 380sqm house, mainly one floor. The upstairs is about 100sqm, it's basically the playroom and guest room, so only gets limited air conditioning unless occupied. There are 32 REC 360 panels taking up pretty much all the useful space on the roof, to the point that two of them are not entirely efficient.

However, when there's a two-month stretch of 40degree days straight, even 'limited' air conditioning is going to involve a fair bit of work. I'm hoping for a bit of a reduction this year, as I had to replace the previous nearly 20-year-old air conditioner upstairs. Cost over $12k, so I am seriously hoping the two main aircon units last longer, but in the meantime, it should be more efficient than the previous one.

Anyway, the bottom line is that energy usage around here is much, much higher in summer than in winter, which happily correlates with solar generation. Unfortunately, electricity from the grid is also very cheap, which makes payback times a bear.

Manic Moran

Actually, now I'm looking, my bill just kicked in (It's a few days off from calendar month, so the figure's a bit different)



Solar was installed in March, figures after that are chargable from the grid, not toal consumption. We've had quite a cool May, but still, that defective aircon unit seems to have used no small amount of power last year, trying to keep up.

MAULBROOK

Manic Moran wrote: »

This is Texas. As they say, everything is bigger in Texas. Part of the reason we moved here, much more house for the same amount of money.
It's a 380sqm house, mainly one floor. The upstairs is about 100sqm, it's basically the playroom and guest room, so only gets limited air conditioning unless occupied. There are 32 REC 360 panels taking up pretty much all the useful space on the roof, to the point that two of them are not entirely efficient.

However, when there's a two-month stretch of 40degree days straight, even 'limited' air conditioning is going to involve a fair bit of work. I'm hoping for a bit of a reduction this year, as I had to replace the previous nearly 20-year-old air conditioner upstairs. Cost over $12k, so I am seriously hoping the two main aircon units last longer, but in the meantime, it should be more efficient than the previous one.

Anyway, the bottom line is that energy usage around here is much, much higher in summer than in winter, which happily correlates with solar generation. Unfortunately, electricity from the grid is also very cheap, which makes payback times a bear.

As amassing as all this is but can we keep this on track, its hard enough getting info for Ireland.

samdeluxjones

jimmyging wrote: »

6.1 kw ground mounted system facing south in wexford
May 895 kw/hr generated
Lost 381 as no battery

6kw south facing ground mount too in south Wexford 974kWh for the month of May

Where do you find total on grid export?

My export is 373kw ( had to total up in excel spreadsheet) That's 38% of total generation given away for free, roll on the FIT..

And that is after charging a 10kw battery most days too.

garo

MAULBROOK wrote: »

As amassing as all this is but can we keep this on track, its hard enough getting info for Ireland.

Ah no it's fascinating to read about how the other half lives.

samdeluxjones

Manic Moran wrote: »

Actually, now I'm looking, my bill just kicked in (It's a few days off from calendar month, so the figure's a bit different)



Solar was installed in March, figures after that are chargable from the grid, not toal consumption. We've had quite a cool May, but still, that defective aircon unit seems to have used no small amount of power last year, trying to keep up.

Is your house is well insulted and airtight to keep the heat out and the cold in?

jimmyging

samdeluxjones wrote: »

6kw south facing ground mount too in south Wexford 974kWh for the month of May

Where do you find total on grid export?

My export is 373kw ( had to total up in excel spreadsheet) That's 38% of total generation given away for free, roll on the FIT..

And that is after charging a 10kw battery most days too.

974 kw that’s good going . I have a myenergi hub and zappi which give me my stats