The Victron system passed 7MWh generated today since installation in February 2023.
Solar panel production figures
- Thread starter Ron-ski
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You can likely make that third place, we don't count "The gaff", their SolarEdge system cheats, it counts what's discharged from the battery as generation, so its difficult to know their true generation. It was still generating 2kW when it was dark last night
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@john_smith presume they've finally fixed your grid voltage?
An average day at 29.43 generated and 23.97 exported.
I seem to remember you saying a transformer went bang, I wonder if they linked you into another supply, and raised the voltage so it could cope with the extra demand - there are large swings from around 222v to over 260v, could also explain why you heard a mini digger last night if they were installing a new transformer. Looks like you're back to where you were previously.
So far so good. With the sun we have had, if today was yesterday, we'd have gone over 260v.
I seem to remember you saying a transformer went bang, I wonder if they linked you into another supply, and raised the voltage so it could cope with the extra demand - there are large swings from around 222v to over 260v, could also explain why you heard a mini digger last night if they were installing a new transformer. Looks like you're back to where you were previously.
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Your last paragraph just goes to show the complications of solar, or any generator connected to the grid, especially when you get a lot in one area. Most people don't realise the complications behind the scenes.
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Nice here at the moment, but the cloud radar shows the cloud heading our way.
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Amazingly we escaped the cloud until early afternoon, it started raining early evening.
39.46 generated and 35.714 exported.
39.46 generated and 35.714 exported.
42.86 and 36.9 exported, a pretty good day.
I was absolutely knackered after spending the day fitting rails to my WNW roof, and my sun burn shows there's plenty of sun up there!
Yesterday we generated 42.96 and exported 36.92.
It's great to hear from another member that their NW panels are working so well, I'm making good progress on mine, will post some pictures to my build thread soon.
Yesterday we generated 42.96 and exported 36.92.
It's great to hear from another member that their NW panels are working so well, I'm making good progress on mine, will post some pictures to my build thread soon.
@94JDH You should post some pictures, I imagine your house with panels dotted allover the place. I'd best get up and go and get on.
A perfect day today, but well down on my best day, made 44.43 and exported 38.44.
Best day was 57 or 58, can't remember now.
Best day was 57 or 58, can't remember now.
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Yes, unfortunately it is.
In my case I have an 11.68 export limit, but when my next lot of panels come online I'll have 15.5kWp of panels. What I'm planning on doing is charging the batteries at a slower rate, so some exported, some to the batteries.
Also due to panel orientation it's very unlikely to reach peak power.
Also due to panel orientation it's very unlikely to reach peak power.
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Another nice day, although a few more clouds around late afternoon, 41.89 generated and 36.07 exported.
Short answer, you can't.
The annual estimated generation is usually lower than the reality, my system installed in December 2015 was estimated to generate 3758 kWh a year, every year it has out performed that.
2016 - 4360
2017 - 4390
2018 - 4370
2019 - 4380
2020 - 4510
2021 - 4150
2022 - 4620
2023 - 4290
As you can see, its performed far better than expected.
But, the biggest factor on ROI is how much electricity costs, and how much you get for export, and how your usage changes, these three things are for more complicated to know, the first two impossible, the only one you can control is your usage. So in reality you can only make an educated guess at ROI.
My estimated ROI on that system was 7.88 years, somewhere I had a spreadsheet where I worked out when ROI was, it was back in 2021 or 2022, probably 2022, mainly helped by the big increase in electric costs.
Short answer, you can't.
The annual estimated generation is usually lower than the reality, my system installed in December 2015 was estimated to generate 3758 kWh a year, every year it has out performed that.
2016 - 4360
2017 - 4390
2018 - 4370
2019 - 4380
2020 - 4510
2021 - 4150
2022 - 4620
2023 - 4290
As you can see, its performed far better than expected.
But, the biggest factor on ROI is how much electricity costs, and how much you get for export, and how your usage changes, these three things are for more complicated to know, the first two impossible, the only one you can control is your usage. So in reality you can only make an educated guess at ROI.
My estimated ROI on that system was 7.88 years, somewhere I had a spreadsheet where I worked out when ROI was, it was back in 2021 or 2022, probably 2022, mainly helped by the big increase in electric costs.
Another reasonable day here, 40 generated and 35.25 exported.
Its scheduled to arrive Friday.
Its scheduled to arrive Friday.
Mines a little out, PV Output says 20.493, and SE App says 21.2, so out but not much. I think PV output gets the data every 15 minutes from the SE API, so it does lag depending on when you look, and may be doing some averaging as well.
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38.9 generated and 33.5 exported, not too shabby.
I bet you had fun getting them on the wall.
Another reasonable day, would have broke 40 if I hadn't turned off the solare for 15 minutes during the free leccy period to test something.
Anyway, we made 39.75 and exported 20.35.
I can assure you, that you have a lot more worse days to come, winters on its way.
You know, how the day before yesterday I said it was forecast to rain all day tomorrow, well, it seems the rain is coming through the night now, and then from about 9 onwards it starts clearing.
Anyway, we made 39.75 and exported 20.35.
I can assure you, that you have a lot more worse days to come, winters on its way.
You know, how the day before yesterday I said it was forecast to rain all day tomorrow, well, it seems the rain is coming through the night now, and then from about 9 onwards it starts clearing.
Unfortunately it's the same problem that The Gaff has, SolarEdge reports battery discharge as generation, so if you charge the batteries from the grid when you discharge it's counted as generation. If you don't charge from the grid, then it is all generation, but what you generate one day might not be used until the next.
It's not just SE, some other systems also do it.
Why they can't do it properly I've no idea. Luckily I don't have a battery on my Solargedge system, so it reports correctly.
You may be able to get around it if you can pull the appropriate data with Home Assistant, and use that to upload.
It's not just SE, some other systems also do it.
Why they can't do it properly I've no idea. Luckily I don't have a battery on my Solargedge system, so it reports correctly.
You may be able to get around it if you can pull the appropriate data with Home Assistant, and use that to upload.