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Solar PV Performance Thread - Post your monthly output

championc

I think it would be very useful to post Solar PV monthly generation figures. Not only could it highlight a problem further down the road, but there many be many owners who are getting far less than they expected (or promised by an installer) and would welcome feedback from other owners.

Of course, there are so many factors involved. Your location in the country (or abroad for our international boardies), your array size, your array direction and the panels mounting angle.

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KCross

6 wrote: »

If you don't have an EV, is it still worth moving to night time electric?

3300 kWh approx usage per year.

Paying 13.75c with Energia for daytime units.

Probably not but you'd have to see what your night time usage is and calculate from there.

graememk

6 wrote: »

If you don't have an EV, is it still worth moving to night time electric?

3300 kWh approx usage per year.

Paying 13.75c with Energia for daytime units.

Its only worth it if you can use 30%+ of your units on the night rate.

garo

If you are working from home it's pretty hard to hit the night rate percent to make it worth your while without an EV. As it is with 3300kWH your consumption is on the low side. So unless you are confident you can move much of your consumption to 11-8, I wouldn't bother.

unkel

for 3300kWh per year with normal rate at 13c, but day rate at 14c, night rate at 8c and a €50 higher standing charge, the break even percentage is having 41% of your units on night rate. That's a lot if you don't have an EV, I wouldn't bother

3300 (x * 0.08) + 3300 (1-x)*0.14 + 50 = 3300 * 0.13

x=0.41

[Deleted User]

Thanks folks. Was assuming so. Thanks for confirming.

1/2 people working from home usually btw, so backs it up even more so.

unkel

And given that night rate is only 9 hours per day, without a serious effort running almost all of your dish washing / clothes washing and clothes drying during night rate, you'd struggle to make that 41%

Patmwgs

Anyone on here got the solic 200 diverter installed in your setup?
Interesed in any feedback on the unit. It looks like it may suit my system.

bod71

bod71 wrote: »

Jan Gen. 48kw
4kw SE/NW. Best day 4.6 Worst 0.1

Feb Gen. 103kw. Best day 7.5 Worst 0.7. 4kw SE/NW.

slave1

4.1kWp SW, 3.3kWp NE
1,073kWh imported
172kWh Generated
164kWh consumed
70kWh to Eddi
7kWh to Zappi
Highest was today, 16.5kWh
13% 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, €18.78

mun1

3.6kW (2.4kW S, 35 deg, 1.2 kw W, 90 deg) limerick

Feb generated 155 kWh
Best day, 28th feb 16.6 kWh
Worst day 11th 0.5 kWh

graememk

graememk wrote: »

Parents Array - 5.6kwp, SE, No battery, HW divert, Donegal Low angle (15°).
Prediction for Feb : 166.89

Mine - 7.2kwp, SW/NE 50:50 Low angle (12°), 10kwh DIY battery.
Prediction for Feb: 164

Will put € savings as mentioned earlier in thread. (I'm getting about a measured 20% loss of what I'm putting into the battery and what I'm getting out. Have setup a heater on a smart plug that will take excess to heat an office beside the garage. As its replacing HW divert I have priced it accordingly.

Parents :
Generation : 189.4kWh
Solar Use(ex divert) :92.2kWh (49%) -€13.11
Divert : 44.3 kWh (23%) - €2.22
Office Divert: 31.1 kWh (%) - €1.56
Export :10.5 kWh (13.5%)

Total for Feb : €15.33
March Prediction : 336kWh

My Array
Generation : 207kWh
Solar Use(Directly) :127.9kWh (62%) - €19.70
To Battery: 73.5kWh (36%) - €9.06
EVSE : 1.9kWh (0.92%) - €0.14
Export : 3.7kWh (1.78%)

Total for Feb : €28.89

March Prediction : 370kWh
Day import : 66kWh
Night import : 810kWh , (92% Night, Now looking at the forcast and deciding to charge, part charge or not at night)

mp3guy

mp3guy wrote: »

10.24kWp array, 5.76kWp SSW, 4.48kWp ESE both 45 degree pitch in Cork.

South: 280.39kWh
East: 143.27kWh
PV Total: 423.65kWh
Best Day: 23rd (29.56kWh)
Worst Day: 28th (1.86kWh)

Grid Import: 604.33kWh
Grid Export: 54.73kWh

Myenergi's servers still busted, getting tired of sub-par software in the solar space these days.

South: 285.30kWh
East: 170.20kWh
PV Total: 455.50kWh
Best Day: 25th (40.83kWh)
Worst Day: 23rd (1.00kWh)

Grid Import: 447.22kWh
Grid Export: 45.48kWh

Boat loads into the car this month. Although I'm not driving much due to lockdown, haven't charged the car off the grid since late December.

tails_naf

February Stats
6.4kWp (4.5 SSE, 1.9 WSW) , 4.8kWh battery, Eddi, dumb electric car charger – Tipperary

Generation – 213 kWh
Export – 9.6 kWh
Divert – 47 kWh
Import – 496 kWh

Best day - 28th, 25.8 kWh
Worst day - 13th, 0.6kWh

Totals so far:
November - 163kWh
December - 117kWh
January - 163kWh
February - 213kWh

irishchris

2.88kwp SW

Feb generation - 124kwh

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

2020
January Generated - 75kWh
February Generated - 121.55kWh
March Generated - 200.59kWh
April Generated - 279.11kWh
May Generated - 396.34kWh
June Generated - 264.13kWh
July Generated - 261.88kWh
August Generated - 254.10kWh
September Generated - 268.62kWh
October Generated - 151.43kWh
November Generated - 90.4kWh
December Generated - 56.47kWh
2020 ANNUAL GENERATION - 2.41MWh

2021
January Generated - 56.14kWh

February Generated - 142.04kWh / Consumed - 390.85kWh / Imported - 308.55kWh / Exported - 7.56kw / Eddi - 25.0kw / Zappi 0kw
Batteries - Charged 206.27kw / Discharged 179.02kw (86.79%)

Meter Readings 03298 (00738 Day / 02560 Night)

Haven't used a daytime unit since 14th

Winterman1234

Winterman1234 wrote: »

January Values, South East facing, 2.4kwp,Donegal

(Predicted Gen - 50kWh)

Actual Gen - 52kWh
Grid Consumption - 197kWh
Hot Water Eddi - 17kWh
Export - 3.8kWh ( lost due to eddi response time, maintaining balance )
Lowest Daily Gen (4 different days) - 0.2kWh
Highest Daily Gen on the 19th - 4.4kWh

February Values,South East facing, 2.4kwp,Donegal

(Predicted value - 94kWh)

Actual Gen - 87kWh
Grid Consumption - 147kWh
Hot Water Eddi - 27kWh
Export - 7kWh
Lowest Daily Gen on the 13th - 0.1kWh
Highest Daily Gen on the 25th - 8kWh

reklamos

Disappointing month compared to last year. Only in last week we got some good days

4.5kWp South facing in Meath
Feb Total 188.1kWh
Best day, 25th 21.5kWh
Worst day 7th 0.6kWh
Exported 0.3kWh
Imported 339kWh
Monthly self use 64%

pjordan

Near Westport, 4.6kw, South facing.

Total Feb: 185.8kw

Best day: 28th 18 kw
Worst day: 13 Feb 0.1kw

Noticed I was producing a lot more than I could use during the last few days of sunshine and about 30% was feeding back into grid with no payback. I was turning on immmersions and caravan heaters and all sorts to use it rather than give it to the grid for free!

DrPhilG

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

Generation – 187.5kWh
Export – 17.2kWh
Import – 438.5kWh

Best day - 25th, 15.9kWh
Worst day - 3rd, 1.0kWh

Last years February must have been great, my predicted total was 207.2kWh but I only managed 90% of that due to a late surge that saw 90kWh generated in the last 8 days.

March's prediction is nearly double, at 387.5kWh.

Mickeroo

July: 191.7kWh
August: 397.8kWh
September: 299.1kWh
October: 226.1kWh
November: 72.5kWh
December: 66.9kWh
January: 89.0kwh
Feb: 145.7kWh

3.7kWp S/SW facing, Mayo

uphillonly

South Dublin 6 kW.
S 2.8 kW, E 3.2 kW. 5.8 kWh battery

Dec 2020: 63.4 kWh
Jan 2021: 78.5 kWh
Feb 2021: 186.7 kWh

Highest day: 28th 13.4. Lowest: 7th: 1.2.
Self consumption: 98.6%.
Self sufficient: 25.8%

Huge jump on January. Feb daily average of 6.7kW above January's highest day of 5.7kW. East panels not getting full sun yet due to shading.

Battery started nearing 100% in the last week so Zappi has come into play and the car now runs on sunshine. Zappi doesn't seem to turn on with Eco++ for the surplus 1.4 kW required as the inverter appears to prioritise house battery over Zappi so I've used Eco+ setting. I can get a steady charge going from panels with top up from house battery if any clouds pass by. It's a bit of a manual process as I turn on when battery starts getting to 50% to ensure I'm not exporting later when battery is full but the car won't take surplus below 1.4 kW.

garo

garo wrote: »

4.8 kWp E/W. 2.4kWh battery. 24 degree slope.
January(kWh):
Production: 63.7 (81.3 predicted)
Consumption: 742
Import: 680 (320d, 360n)
Export: 2.2 (0.2 pred.)

Best day: 23rd: 4.6
Worst day: 20th: 0.6

February 2020
Expected 143
Actual 165
4.8 kW E/W 24 degree tilt

Feb was better. I am surprised I got over predicted after the poor first half but second half was great. But a bit lower compared to last year.

4.8 kWp E/W. 2.4kWh battery. 24 degree slope.
February(kWh):
Production: 151.8 (143 predicted)
Consumption: 746
Import: 604 (225d, 379n)
Export: 10 (14 pred.)

Best day: 28th: 13.5
Worst day: 7th and 13th: 1.4

gman2k

2.56kw South facing no shading in South KK

Feb generated 70.2kwh - only slightly better than Jan on 69.4kwh.
Best day 28th with 10.5kwh. I had a few days of .1kwh generated.

Alkers

Alkers wrote: »

January total 82.6kWh
Highest - Jan 9th (7.9kWh)
Lowest - Jan 20th (0.6kWh)

February Total 130kWh
Highest - Feb 28th - 13.2kWh
Lowest - Feb 7th - 0.9kWh

2.52kWp south facing, Dublin city, installed Dec 12th.
December total 58.4kWh

MAULBROOK

MAULBROOK wrote: »

South East direction in north Wexford.
6.2kw Solar
5kw Solis inverter
7kw BYD Battery

January Total 158.3kw
Best day, Jan 23rd 14.7kw
Worst Day Jan 31st 0.7kw, today was ****
Exported 2.5kw
Imported 282.4kw
Monthly self use 80.23%

Feb Total 219.3kw
Best day 25th 21.9kw
Worst day, 13th 0.2kw

Gazzler82

Cork
3kW SE
Dec 47.3kwh
Jan 73.9 kWh
Feb 81.9 kWh
Chimney stack in middle of array big limiter this time of the year it seems

Best 7.9kwh 25th
Worst 0.1kwh 23rd

graememk

mun1 wrote: »

5 KW array (3.8kw South 35 deg slope, 1.2kw W 90 deg ) limerick

March gen 237kwh

Best day 30th march 22kwh
Worst day 4th march 1.3kwh

Isn't there one more day in march? You have me saying the rhyme to check! Tomorrow could be another 20kwh er day!

mun1

Yep, missed a day ,:)

MAULBROOK

mun1 wrote: »

Yep, missed a day ,:)

Any moment now will be fine:):)

mp3guy

Just waiting for the inverter output to drop low enough...

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