Solar PV Performance Thread - Post your monthly output

Well the numbers are already in - August is my best month beating May's numbers.

May had higher highs (cooler panels) but August just had more days above 20Kwh for me. Notably - my import numbers are up this month (from 28Kwh to 102Kwh) but I expect that July holidays meant i just used less power that month compared to this month.

tldr; From here and into winter - my need to use Night rate and Load shifting will increase - the days are drawing in and sunshine is NOT getting over the trees early enough to fill battery or heat water anymore - so i need to boost with the Eddi more. My oil tank has been idle for months thankfully - and i dont expect to need to fire it up until November - unless i find it cheaper to heat water during the day. Getting a fill today to top me up before it gets crazy.

Ahh the old "Can-o-petrol-and-zippo problem" I see - LOL

I have removed all South facing obstructions - and felled a West facing obstacle. Im keeping the remaining ones topped... but the East Facing early morning trees are loved by the missus. I might convince her to top a few next year. I know which ones are in the way after observing for a year. :)

6.84kWp south facing, Roscommon. 4.8kw battery.

August 2022

869kWh generated (660 forecast) ,😁

(79kWh to Eddi - mostly the Eddi heating water all month)

(90.3% of total consumption, self produced)

Total consumption 710kWh. 218kWh discharged from battery. 291kWh exported

69kWh imported (no day/night meter, but bulk imported during night, early morning)

44.0kWh generated best day (9th & 11th Aug)

10.7kWh generated worst day (15th Aug)

799KW generated for August with 141KW to the Eddi. 7.2KW South facing in Dublin. Best day was the 8th generated 38KW.,

August Stats

7.44kWp (4.03 south/3.41 west), 20kWh battery, Zappi & Eddi – Donegal

Generation – 766.5kWh

Export – 78.2kWh

Import – 77.3kWh

Best day – 10th, 41.2kWh

Worst day - 15th, 5.6kWh

Days with less than 1kWh purchased - 26.

4.8kW EW Dublin. 10kWh DIY battery

August 2022 (kWh):

Production: 607.8 (462 predicted, 446.5 last year)

Consumption: 866.2

Import: 303(78d, 225n)

Export: 19.8 (37.4 last year)

Best day: 8th: 28

Worst day: 16th: 9

Been a good month. Two installations. Installation1 is the original one (1.52Kwp East/3.8Kwp West) in south dublin.

Installation 2 is the 2.3Kwp south facing one the shed. Only operational since Aug 5th or so. Still did an impressive 211Kwhr which at ~€0.30/unit, that's a nice €60 assuming I was to use it all myself (which I know I didn't and a lot of it got FIT exported). I'm on deemed export, so it's much to a muchness for me.

Some milestones: Broke €1,000 in overall savings since I put the system in, in late Oct '21, which would put me on track for a 7-8 year payback for everything (installation 1 only)

For those of you who are interested, south Dublin had a pretty good month compared to forecast.

I had better/higher months of course (May & June) but August felt relentless with day after day of 20-25Kwhr. Smashing.

South Roscommon, 8.16Kwp, facing 210° at 35°

Total generation 1084kWh

Consumed 583kWh

Energy from Grid 91kWh

Energy to Grid 347kWh

To the Eddi 155.9kWh

To the Zappi 260kWh (approx. as we had a couple of night charges due to a few trips)

To the Battery 154kWh

Best day 10th with 53kWh

Worst day 1st with 13.4kWh, only 2 days where it dipped below 20kWh and 4 straight days in the 50's.

Was our best month to date, really was a great August, breaking the MWh.

Running about 68% self use as we had a good few days away when the weather was good.

2.5 kwp system facing south Galway City, just had my best month since install in May 21.

Total for month was 366 kwh.Should also hit 4 MW since install in the next couple of days.

Solar is really starting to pay its way.😀

6.1kWp system in Cork I produced 925kWh in August.....

To say it was a good month is a bit of an understatement 38% over the estimate. I only used 40% of it since I was on holidays for 2 weeks of it, but since I got my EV I have really ramped up the self consumption. For that stellar second week I managed to use 62%.

I reckon I saved myself around another €100 with my PV system for the month although a good chunk of the savings are in the Zappi with should be night rate.

Only one more month for a calendar year install and if I can get over 600 kWh for September it should see my 6.1 kW system produce 7000 kWh for the year

forgive me for asking... but why do u think u import so much? i generated 200+ less and u imported 100+ more?

Is it an EV causing this or a Heatpump? or somethine else like a SMart Meter and no load shifting?

😜 human heat pumps in a house filled with joy. Nice one. Hopefully the next generation learns from your reduce habits, but in my house I have to run round turning off lights or asking google to shut down xboxes with tapo plugs. One moved out this year and it was amazing to show him how the house consumption dropped the day after his pc, tv, laptop, cooking time left...

System installed last May, but August was my record month

August: 1164kWh

8kWp system approx 14 panels South and 6 South East

Highest Day 8th - 51kWh

Lowest Day 1st - 15kWh

Self Use: 609kWh

Export: 555kWh

Imported 27kWh total

My first September. Brought me down to earth compared to August

1st Month. Panels installed 1st Sep, battery commissioned 12th.

5.7kWp E/W split in Dublin. 5.3kWh battery.

Eddi took 98kWh

Best day 4th @ 24kWh

Worst day 3rd @ 3kWh

620kwh generated from 6.9 kWp for September.

3.2kwp SE, .8kwp NW, .8kwp W.

329.6kw generated. 477kw in August.

Roscommon, 4550Wp, Azimuth: 136° (SE), Slope: 24°