Solar PV Performance Thread - Post your monthly output

kabakuyu

2.5 kwh south facing.

67.8 kwh generated for December.

Best day 6.2 kwh on the 6th.

Worst day .4 kwh on the 11th.

Manic Moran

Not a great December. Consumed more electricity than in November (Not sure why), and produced less. 34% produced at time of use. 11.5kW system, central Texas. Utility have announced a rate hike of 10% or so upcoming, so at least some of the money is starting to get clawed back. I may even turn a profit by the end of 30 years...

raytaxi

2.5 kwh west facing. In louth

41.6 kwh generated for December.

Best day 4 kwh on the 4 and 5th.

Worst day .4 kwh on the 22 and 25th.

dloob

7.6 kWp (4.55 east / 3.05 west)

67 kWh for December.

Best Day December 5th 4.56 kWh

Worst December 11th 0.37 kWh a dull drizzling day.

With the low angle of the sun of the west array is quite shaded at the moment.

Good bit of EV charging pushed up consumption this month too.

celtic_oz

6.2 Kwp

76kWh for december

Is grim up north!

v10

4.4kWp

99kWh for December

Little better in County Kildare

Alkers

2.52kWp south facing, Dublin city, installed Dec 12th 2020.

December total 58.4kWh (partial month)

January total 82.6kWh

February total 148.3kWh

March total 222.8kWh

April total 327.2kWh

May total 345.6kWh

June total 341.1kWh

July total 334.2kWh

August total 254.6kWh

September total 214.9kWh

October total 192.4kWh

November total 109.7kWh

December total 86.4kWh

Highest - December 15th (6.6kWh)

Lowest - December 25th (0.4kWh) - lowest ever!

Highest Ever - July 19th (16.6kWh)

septicsac

1st Month completed in December in Louth - 7.9Kw Panels, 6 KW Inverter, 5Kw Puredrive battery and an eddi.

216Kw of which almost 25% went back to grid, which really bugs me...

v10

216Kw of which almost 25% went back to grid

That's pretty good generation for December all the same

bullit_dodger

https://www.boards.ie/discussion/comment/118416884#Comment_118416884

That's crazy good generation. What's driving the consumption? EV / Heatpump / Mining?

I guess you need another/bigger battery or take up "arc welding" as a hobby on sunny days or you'll be a basket case come March when the big generation days start!

AndyBoBandy

@septicsac I hope you have an EV to put all that excess into that you'll be generating?

That 51kWh you exported in December would fill my car from 0-100%, giving me about 270-300km of winter driving (summer 400km). In Spring/Summer/Autumn you will be exporting multiples of that..... Thats free motoring for 8-9 months of the year if you so wish.

septicsac

https://www.boards.ie/discussion/comment/118419778#Comment_118419778

Not yet, but other halfs next car will be electric

septicsac

https://www.boards.ie/discussion/comment/118419304#Comment_118419304

FIT or EV will address some of it, which ever happens first

championc

Spreadsheet now with monthly outputs and stats. Please add your systems if you haven't already done so :)

https://docs.google.com/spreadsheets/d/126q1if4RJqtmB1z-M6cxuXr6TknY_SwKuwAjxZsxh8E/edit#gid=1217242061

Zzippy

6.2KwP, SE orientation, Galway.

December total: 104.19kWh

Best day: 5th, 10.19kWh

Worst: 11th, 0.28kWh!

System now 6 months old, total generation July-December 2.4MWh

slave1

Great result for Dec, you'll be doing a megawatt a month come May

SD_DRACULA

https://www.boards.ie/discussion/comment/118433173#Comment_118433173

Unlikely due to panel heating, if I didn't hit 1mw with 7kwp south last year 😉

Zzippy

https://www.boards.ie/discussion/comment/118416884#Comment_118416884

That's incredible for December, must be a sunny micro-climate in the wee county!

septicsac

Got my electricity bill for Nov 15 to Jan 15 and my consumption was down 30% with my 7.8Kw panels and 5kw puredrive battery. On top of that I had no panels in operation until the 30th Nov when they were installed, so could easily expect another 7-10% reduction in consumption from the grid, pretty happy with it so far, just need this damned FIT to come into operation as still exporting to much to the grid at times.

championc

You need to up the self use rather than thinking about FiT. FIT will only be worth buttons.

If you don't have an EV, now is the time to start planning for one. Don't think about the initial cost but look at the cost over 5 years.

Every home with 2 cars should even look at a cheap 24kW First Gen Leaf for a local runaround.

septicsac

https://www.boards.ie/discussion/comment/118516006#Comment_118516006

EV would be on the list in next year or two alright. Regarding FIT not expecting it to be anything much, but anything is better than nothing, i just ahte seeing it go back for free

14 SE facing panels gave me 110.1kWh, in December.

North Cork

THE ALM

Just about done for our second month (8.16kW 200° SSE facing on a 35° angle) with a total of 245.4kWh, although it was only a couple of kWh off projected outcome.

A fairly settled month weather wise but it was no great shakes on the sunshine front with just 9 days managing to hit double figures.

Jan22 brings 144.6kWh

AndyBoBandy

Despite a late surge, the month produced 87.9kWh

I’ve ran the washing machine or dishwasher (or both) on more days than not to prevent feeding the grid, and the daily output is only increasing……. Happy Days.

ECO_Mental

227kWh in Cork 6.1kW system, it was a very grey overcast month I though, or maybe that just me now noticing these things because I have a PV system now...and that's a normal January

garo

https://www.boards.ie/discussion/comment/118402954#Comment_118402954

4.8kW EW Dublin. 10kWh DIY battery

January 2022(kWh):

Production: 78.6 (81 predicted)

Consumption: 860

Import: 783 (118d, 665n)

Export: 1.7 (0.2 pred.)

Best day: 24th: 4.3

Worst day:15th: 1.2

The bigger battery and night charging means my import is now only 15% day rate.

paulbok

6.84kwh, 4.8kw battery, SSE, Roscommon.

Only installed since the 10th so not adding to the spreadsheet.

App graph has 119kwh for the 3 weeks but higher on the app and the inverter both have it at 143kwh. That's working out around 93% of the forecast. Approx 1/3 of consumption covered.

Still getting used to the app, the total consumption is 50kwh off the production + grid purchases, not sure whats going on there.

.

Best day: 17th, 17.3kwh

Worst day: 18th, 0.7

Exported: 4.8kwh

septicsac

Got my export down from 24% to 16% by making few changes,like dishwasher going on during the day and not at night.

7.8kw panels, 6kw inverter, eddi & 5kw Puredrive battery produced 324kw for Jan.

bullit_dodger

https://www.boards.ie/discussion/comment/118561273#Comment_118561273

What are you using mate for the forecast?

I always keep an eye on your one as your close to myself in terms of location, size and panel orientation. I'm also in Dublin, E/W split (091/271 to be exact) and 5.3Kwp and yet according to

https://re.jrc.ec.europa.eu/pvg_tools/en

my forecast with a 5.3Kwp is 66.6 kWHr. Since you have 4.8Kwp I'd have figured you'd be less. Thinking you using something other than PVGIS-SARAH ?