Solar PV Performance Thread - Post your monthly output

257kwh for February. 7.2K south facing in Dublin.

4.55 kWp, azimuth 136°, slope 24°, 5kW, 10.9kWh, Roscommon

Looks like the last of my winter shading has gone ('till Nov). Roll on the big jump in March!

Not as good as last Feb. The high pressures seem to bring in more cloud than they used to:

Feeding in more as I got a new battery in Dec and a good night rate 😁, so load shifting without worrying about cloud cover forecast or being obsessed with self consumption (because of FIT). A good day (not perfect) of load shifting looks like this.

That translates into significant cash savings for me. Here's my estimated bill for Jan/Feb comparing my previous supplier plan with my new one:

Still worth shopping around regularly! Know your numbers

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

Total generation 315.2kWh (prediction at 339kWh) About a 20% drop on last February

Consumed 531.20kWh

Energy from Grid 247kWh

Energy to Grid 23kWh - 93% self use

To the Eddi 41.2kWh

To the Zappi 157.2Wh (does include night charging figure)

To the Battery 232.40kWh

From the Battery 219.5kWh

Best day 22nd with 27.7kWh

Worst day 11th with 2.9kWh

Energy exported would have generated €4.14 at Energia FIT rate if on a smart meter, we are D/N.

Felt like another dull month with only 4 days in the 20's.

February was my first full month too - 5.6kWp system produced 179kWh with a roof mounted SW orientation (215-220 degrees) in north Co. Sligo. not as stellar as some of the figures quoted above but its been so cloudy here I'm not surprised!

Still very happy with it especially as our solar generation outpaced our overall consumption for the month at 153kWh (103kWh imported from the grid). Our Feed in/grid export electricity total for the month was 134kWh. We only had our Eddi connected to new hot water tank since last weekend so expecting that we will see the total solar generation going into self use increasing substantially going forward.

First (almost) full month.

E/W, 2.4kw/3.2kW split in South Dublin, output for the month 159kWh.

No shading that I am aware of and production during last summer was excellent on clear days. Had a lot of cloud cover here last month.

4 kwp south east, 3 kwp north west, north Dublin

500kwh on the nose for March, just 6% shy of PVGIS estimate so not too bad considering. 50kwh into Eddi, and hardly needed to charge the EV at night at all, and being able to phone manage the night-time battery charging based on next day's general forecast is v handy, so content with self-consumption level. aaand the oil boiler is mostly off now 🥳

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

Total generation 561.5kWh (prediction at 591.1kWh, last year 880.30kWh)

Consumed 694.5kWh

Energy from Grid 200kWh

Energy to Grid 60kWh

To the Eddi 79.5kWh

To the Zappi 240Wh

To the Battery 239.29kWh

From the Battery 229.29kWh

Best day 23rd with 33.7kWh

Worst day 9th with 4.3kWh

Energy exported would have generated €10.8 at Energia FIT rate if on a smart meter, we are D/N.

My overall solar production for March was 392.6kWh.

75.5 kWh diverted to Eddi

221kWh Exported (current FIT price = 0.21/kWh = 46.41 Euro FIT value)

Total Domestic Electricity Consumption (excluding Eddi) = 130.65kWh, solar contributed 35.1kWh and we imported 95.6kWh off the Grid (Post VAT electricity rate = 41cent x 95.6 = 39.19 Euro payable to Billing company)

There were a few good days at the end of the 1st week of March but momentum never really carried over into 2nd half of March. We lost several hours of production on the 15th March (also our worst day of production) when our smart meter had a fault resulting in a 14 hour electricity outage.

Our best day was 10th March =29.2kWh

Active now for two full years.

And the buy/sell mix for the last month

225kwh from 3kwp sw 1kw ne and as others have said, a poor march. It looks like 300 would be relatively easy. However for me this being the first full year with the 3wp, happy to see the improvement month on month. 55% consumption which could be bettered for the month but is unlikely to rise really over the next few as production rises.

410kwh total used, a fair bit being the tumble dryer which would be less used if we had better weather. So its possible to see this system being self sufficient for March.

In terms of using the excess, our tumble dryer uses 1.4kW on 'delicate' setting. Stills dries the same but slower. Perfect to finish clothes to make space for the next wash. Personally I try use it as little as possible though.

17th Month

Dublin - Lucan - March 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: 407kWh (161kWh consumed directly, 134kWh into battery, 112KWh to grid)

Best Day: March 7th - 22.6kWh

Worst Day: March 9th - 2.0kWh

Total Consumption: 438kWh (66% Solar: 34% Grid Import (150kWh))

Milestones & Info:

57kWh to Eddi for March

Exceeded 7MWh since install

2023 - Monthly Expected FIT €26.88 + Money Saved on Energy from PV :: €65.78 :: Total Savings €92.66 for Mar. (FIT @ 0.24c/KWh)

2023 - Annual Savings on PV usage : (Jan 49.41, Feb 87.25, Mar 92.66) = €229.32

2023 - Expect FIT :: (31 Feb, 112KWh Mar)

2022 - Last Year March : Generation 610kWh, Consumption 474kWh

2022 - Annual Savings on PV usage = €809.39

2022 - Expected FIT since Feb 15th'22 €595.68* :: (24 Feb, 254 Mar, 272 Apr, 413 May, 382 Jun, 435 Jul, 440 Aug, 151 Sept, 97 Oct, 21 Nov, 1 Dec, 12KWh Jan: Total 2482KWh) - FIT paid as of start of Feb'23 €581.49 (possibly includes 12KWh exported Jan'23)

2.5 Kwp system south facing Galway.

Total for March was 196.5 Kwh.

March 2022 was 314kwh.

651kwh generated for march. (312kwh less than same month last year)

2.88kwp West

6.98kwp South / South West