Solar PV Performance Thread - Post your monthly output

Thewitheredowl

2 installations

4.2kWp south facing in Dublin south

PVGIS Forecast: 140kWh

Actual: 113 kWh

6.88kWp south facing Dublin mountains

PVGIS Forecast: 148kWh

Actual: 97.5kWh

irishchris

December 2023

2.88kwp W & 7kwp S/SW

193 Kwh generated

GReid2005

8.4Kw S facing Offaly.

224.3Kwh generated, system says I exported 46Kwh but ESB Networks says its 59Kwh, guess I'll find out after my bill comes out.

graememk

https://www.boards.ie/discussion/comment/121561030#Comment_121561030

Esb one is the only one that matters!

rgfuller

26th Month

Dublin - Lucan - December 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: 98kWh (98kWh self use (inc. battery), 0kWh to grid)

Best Day: Dec 13th - 8.7kWh

Worst Day: Dec 20th - 0.1kWh

Total Consumption: 447kWh (21% Solar: 79% Grid Import (351kWh))

Milestones & Info:

Last Year Dec 2022 :: Generation 135kWh, Consumption 414kWh

12kWh to Eddi for December

5.551MWh generated in 2023 :: 5.252MWh consumed in 2023.

2023 - Monthly PV Savings :: Expected FIT €0.00 + Money Saved on Energy from PV :: €34.30 :: Total €34.30 for Dec. (FIT@0.24c/kWh, AvgUnitCstSaving@0.35c/kWh)

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, Dec 34.30 ) = €1363.59 Total saved/earned due to PV in 2023.

Adding approx €1402 Total saved/earned due to PV from 2022 = €2765 for 2 years / €9650 cost giving approx 7 year payback (5 years to go).

ionapaul

For December:

137kWh generated - 6.72kW system facing ESE in South Dublin.

476kWh consumed (had to do some home charging of the EV car this month, as wasn't in the office for the final two weeks).

In December, self-used 59.71% of electricity generated, and fed in the other 55kWh (no battery).

Since initial installation on March 7 2023, a total of 5.57MWh generated, 3.85MWh fed to grid, 3.61MWh consumed (self generated & imported), with a self-use ratio of 30.83%.

paulbok

6.84kWp south facing, Roscommon. 4.8kw battery.

Dec 2023

127kWh generation - Forecast 169.3kWh - Last year = 205kWh

Total consumption 623kWh.

7.9kWh to Eddi

1 kWh exported

506kWh imported (no day/night meter)

15.2kWh generated best day (4th)

0.5kWh generated worst day (17th)

NinjaTruncs

For context with all the comparisons to last year. RTE had a farm weather report, I think it was Sunday, where they indicated that the top half of the county, north Wicklow across to Galway and up, only had about 50% of the expected amount of sunshine for December, which would tie in with a lot of the lower returns this December compared to last December.

Shannonsurfer101

Evening all, two quick questions. I have a 50kVA transformer on site, is it possible to export up to its max capacity or do ESB networks have set limits for Solar export? Secondly, how long should the inverters last? Thanks again

THE ALM

A poor end to the year and well down on last Dec.

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

Total generation 158kWh (prediction at 202.9kWh, last year 261.6kWh)

Consumed 982kWh (doing all charging of battery and EV at night rate).

Energy from Grid 898kWh

Energy to Grid 54kWh

To the Eddi 0kWh (oil heating doing the water)

To the Zappi 653.80Wh

To the Battery 253.10kWh

From the Battery 240.60kWh

Best day 4th with 19.6kWh

Worst day 6th with 0.5kWh

Energy exported would have generated €12.96 at Energia FIT rate if on a smart meter, we are D/N.

cc

Produced 72.7 kWh off 3.2 kWp system in Cork (2.0 SW, 1.2 NE).

Eye

I Realized I never posted my November stats so both Nov & Dec below, they are very poor due to my location being on the North Side of a wooded hill, severe shading kicked in around mid Oct killing my stats, don't expect to come out the other side of that until mid March.

My Setup:

7.74kW (18x 430w panels) 9 panels South / 9 panels West in North Waterford, slope I think is around 40°, 5kW Huawei Inverter with No Battery

November

Predictions 223kWh

Actual Generation 118.87kWh (53% of predicted)

Total Consumption 868.68 kWh (13.39% Solar / 86.61% Grid)

PV Consumed 116.32 kWh

Imported from Grid 752.36 kWh

Exported to Grid 2.55 kWh

Eddi Usage 13.2 kWh

Wallbox EV Charger 184.94 kWh (6.90 kWh Solar / 178.04 kWh Grid import) [3.73% Green]

Best Day 2nd Nov - 8.45 kWh

Worst Day 18th Nov - 0.99 kWh

December

Predictions 109 kWh

Actual Generation 62.06 kWh (57% of predicted)

Total Consumption 985.10 kWh (6.26% Solar / 93.74% Grid)

PV Consumed 61.64 kWh

Imported from Grid 923.46 kWh

Exported to Grid 0.42 kWh

Eddi Usage 3.1 kWh

Wallbox EV Charger 247.16 kWh (0.17 kWh Solar / 246.99 kWh Grid import) [0.1% Green]

Best Day 23rd Dec- 2.96 kWh

Worst Day 18th Dec - 0.71 kWh

You know things are bad when the best day in Dec is 2 days away from shortest day of the year 😂 Roll on March...

garo

4.8kW EW Dublin. 20kWh DIY battery

Jan 2024 (kWh):

Production: 73.6 (81 predicted, 81.5 last year)

Consumption: 798.6

Import: 730 (72d, 658n)

Export: 5

Best day: 30th: 5.3

Worst day: 1st: 0.8

bullit_dodger

Solid enough month. 6.5Kwp split E/W in South Dublin city. Production works out at 14.58kWh per 1Kwp.

107% of PVGIS forecast - which is always nice to see.

Now that Nov, Dec & Jan are behind us......it's all guns blazing until end of Oct :-)

Panrich

185kwh from a 6.45kwp sse facing system. Pretty good month allowing for the amount of shading I get at this time of year in the afternoon.

cc

103 kWh off 3.2kWp (2.0 SW & 1.2NE), good to be back in triple digits again! (Just about)

The devils

Can you get all this info from solis or do I have to extact it ?

ColemanY2K

https://www.boards.ie/discussion/comment/121703818#Comment_121703818

those with solis can see the info in their app (day, month, year, total).

for the record (partial i may add) my 7.79kWp array facing due south produced 30kWh from install on the 27th to yesterday evening. tuesday 30th was a great day producing 23.6kWh. bring on february :)

The devils

https://www.boards.ie/discussion/comment/121704089#Comment_121704089

Ah yeah I know that cheers, just thought there is a better way instead of adding up days etc...

rameire

112kWh January 2024,

Similar to last year where I got 117kWh

tommythecat

Brand new 4kWp south east facing system installed on the 19th Jan so only partial this month.

Total produced 41kWh.

Glad to be aboard!

DC999

https://www.boards.ie/discussion/comment/121704256#Comment_121704256

Welcome :)

zoom_cool

188kwh for Jan

4.8kw Panel system

ColemanY2K

https://www.boards.ie/discussion/comment/121704194#Comment_121704194

You don't have to add up the days. All you need to do is click on the year, select the relevant month (in this case January = 1) and then review the data above.

Dothehustle

4.7kWp system 3.4kWp east 1.3kWp West

Solar - 77.18 kWh Forecast 72.72

To Home 50.95kWh To Battery 15.63kWh To Grid 10.60kWh

Best day 26th of January 5.54kWh

Worst day 2th of January 0.28kWh

Jan 77.18

Total production for this year 77.18 kWh

Total production forecast this for year 72.72kWh

GReid2005

8.4Kw South facing array

kabakuyu

Total for January was 122.2KWH.

South facing 2.5kwp system in Galway.

rgfuller

27th Month

Dublin - Lucan - January 24 - 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: 160kWh (149kWh self use (inc. battery), 11kWh to grid)

Best Day: Jan 26th - 11.9kWh

Worst Day: Jan 2nd - 0.3kWh

Total Consumption: 455kWh (32% Solar: 68% Grid Import (309kWh))

Milestones & Info:

Last Year Jan 2023 :: Generation 166kWh, Consumption 396kWh

29kWh to Eddi for January

2024 - Monthly PV Savings :: Expected FIT €2.64 + Money Saved on Energy from PV :: €52.15 :: Total €54.79 for Dec. (FIT@0.24c/kWh, AvgUnitCstSaving@0.35c/kWh)

2024 - Annual PV Saving progress :: (Jan 54.79) = €54.79 Total saved/earned due to PV in 2024.

curioustony

Best January since I had panels installed. Still in shading season

Buy and sell mix could be better, but we are not disciplined. Nothing to do here. ROI on additional battery is a bit too long.

And the bill estimate for Jan will be well covered by credit.

Approaching 2 years now, with no payment for electricity 😜. The government handouts have been covering the bill.

irishchris

395 kwh Generated for January.

9.9kwp South/South West/West in galway.

Nice return for January of €66 fit and €23.90 imported