Solar panel production figures

[Ron-ski]

just about to put my order on for another 9 panels, then I'm done.....................

How many will that be? You must be getting close to the inverter maximum.

 

[Ron-ski]

That cold weather voltage is a pain, it made it quite tricky to find the right panels that wouldn't exceed 150v for the Victron MPPT for my rear wall panels.

 

[Ron-ski]

Shhh! There's clouds about.

 

[Ron-ski]

I'm laughing. What an amazing jinx, a perfect day upto 15:50...when I posted. The next two uploads of data, massive dip in generation.

The solar forecast did have a big drop off late afternoon, and the small clouds had been around for a while, some dark clouds forming now - it is forecast to rain tomorrow, and next week is not looking as good anymore.

 

[Ron-ski]

Was having a very good day until the afternoon clouds, but still generated 51.67 and exported 45.726 kWh.

 

[Ron-ski]

Not a very good day, generated 30.42 and exported 24.23 kWh

 

[Ron-ski]

Last June 1291 kWh, this year so far 880, up to yesterday we were averaging 38.9, which would be 1167, so we are well down unless the clouds do one as well.

In fact we'd need 58.7 each day to catch up with last year, I think we can all agree that's not going to happen.

 

[Ron-ski]

Good day here, 53.29 generated and 49.15 exported.

It was almost a perfect day, just some cloud in the morning.

 

[Ron-ski]

Can I check with you guys my figures? There's so much info I can't really see the wood for the trees.

This report is just for Saturday (yesterday) which was a touch cloudy but nice most of the day. My panels are 3 south facing, 13 west facing. I have a 8.2kw givenergy battery. I have set the battery to harge from grid from 3am and discharge in the early evening. I've copied the following data from the Givenergy report.

Energy flow:
Solar - 25.93kwh
To home: 6.18kwh
To battery: 0.03kwh
To grid: 19.72kwh

Battery - 2.42kwh
To home: 2.37kwh
To grid 0.05kwh

Grid - 6.17kwh
To home: 1.42kwh
To battery: 4.75kwh

Are there any numbers I need to provide to give a complete picture? How does it look? Would love to know how effective it is.

That looks to me like your panels generated 25.93 kWh, and the rest under energy flows says where that energy went.

The next section seems to imply the battery discharged 2.42 kWh, 2.37 to the home and 0.05 to the grid, and the last section shows what you used from the grid and where it went.

 

[Ron-ski]

Finally a perfect day

54.22 generated and 49.273 exported, not my best day that's 57 kWh, but still a very good day.

Individual strings.

 

[Ron-ski]

Just passed 1 MWh for the month, 4.083 MWh for the year to date.

 

[Ron-ski]

Another perfect day.

52.6 generated and 48 exported, which means another minus £6 electric day.

 

[Ron-ski]

We had some light cloud between 9:30 and 12:30, but still not a bad day, 49.18 and 45.1 exported.

Tomorrow's not looking too bad.

 

[Ron-ski]

Another 45.89 kWh today with 40.275 exported.

 

[Ron-ski]

43.6 generated and 39.455 exported, looking like I'll be 60 kWh down on last June.

 

[Ron-ski]

Advice needed please

Please post in this thread

Solar panels and battery - any real world reccomendations?

Saw a thing yesterday with Anker moving into the space. Looked pretty nice actually.

forums.overclockers.co.uk

 

[Ron-ski]

49.47 and 41.5 exported.

Last time I looked we had rain forecast for tomorrow.

 

[Ron-ski]

A rather poor day today, with just 22.97 kWh generated and 18.485 exported.

That makes the total for June 1227 kWh generated, 1047 exported and 528 kWh imported.

Beat Mays 1047, but last June was 1305, which was actually slightly worse than last May, which was 1325.

 

[Ron-ski]

40.03 kWh generated and 36.54 exported, not the best start but far better than yesterday, unfortunately the next two days have rain forecast.

 

[Ron-ski]

A chilly 16 degrees here, had been winter that would have felt positively warm, but for July, with a chilly wind it felt cold.

As for solar, just 22.69 generated and 18.23 exported.