Solar panels and battery - any real world reccomendations?

b0rn2sk8 said:
It’s import, look at the trials.

Also add up the numbers :p . 170w house load, 60w from the inveter so the other 110 must be grid import.
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Yeah it is just worded terribly then, I'm sure if it wasn't a static graphic I might have noticed the trails.

EDIT: Also those number don't add up, or I am still sleeping.
 
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Mercenary Keyboard Warrior said:
Ah the beauty of Solax!...

As said its a snap short of the precise time at 5 minute intervals.
You will see if you drill down naff all actual usage but it can happen.

You can switch to live data if you want but it reverts to the 5 minute slices.
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Yea my inverter updates every 10 seconds if you are on the same wi-fi, but it shows how slow the inverter is to "react" to changes, I reckon a good 3-5 seconds.

So if your house is using 500w, then you turn something on, the 3-5 seconds between that and your inverter kicking in, it'll pull the difference from the grid.

Same as if say you are pulling 3jw, generating 3kw, then you turn whatever it is off so you are only pulling say 500w.

For that delay, you'll end up exporting the 2.5kwh.

If you "snapshot" is taken at that moment it'll look weird, but it's not* really a true indication.
 
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It's export, look top left Grid Power -110.00W. Grid Feed-in, means exporting to the grid, grid feed-in should be negative when importing, as Journey says, its a poor and confusing graphic. It should be labelled Grid and positive when importing, and negative when exporting.
 
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Ron-ski said:
It's export, look top left Grid Power -110.00W. Grid Feed-in, means exporting to the grid, grid feed-in should be negative when importing, as Journey says, its a poor and confusing graphic. It should be labelled Grid and positive when importing, and negative when exporting.
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its not export its 100% importing at that point
 
The top left shows grid power as 1.92kW, most people in the know would take that as drawing from the grid, even you're smart meter would show a positive number when importing, and should show a negative number when exporting (not all show instantaneous power on export).

Grid Feed-in is correct, as feeding into the grid is exporting, but it confuses the issue, it should simply be labelled Grid and negative when exporting and positive when importing.

The app does not conform to normal conventions.

Here's a proper display.

2024-04-13-Victron-VRM.jpg
 
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Unless you have the latest Solax Wifi Dongle, the one which updates every 10s, don't take too much notice of those app figures, as @Mercenary Keyboard Warrior said it is only a snapshot taken at 5-minute intervals.

The inverter balances demand with generation and charge/discharge on the fly so there will be short-reported instances of it drawing or feeding the grid which doesn't make sense.
 
Ron-ski said:
It's export, look top left Grid Power -110.00W. Grid Feed-in, means exporting to the grid, grid feed-in should be negative when importing, as Journey says, its a poor and confusing graphic. It should be labelled Grid and positive when importing, and negative when exporting.
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Nah hes right the line will be going from left to right but as its a snapshot you cannot see that

Edit to avoid quoting you again, your right its kind off odd by western standards, but Solax main base is in China so who knows.
You know the issues I have had with them, eg their yield which is not solar yield etc.
 
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@Mercenary Keyboard Warrior I agree he is right, my my point is as explained in later posts the display doesn't follow normal conventions, and thus is confusing to anybody that doesn't know the way that particular app displays its information.
 
Ron-ski said:
@Mercenary Keyboard Warrior I agree he is right, my my point is as explained in later posts the display doesn't follow normal conventions, and thus is confusing to anybody that doesn't know the way that particular app displays its information.
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As I said in edit, maybe in UK/europe/US etc as far as China I dunno.
I am pretty sure from memory the website is the same, no negatives you need to follow the arrows (will check later, charging the batts at the moment)
For a layman its less confusing if you think about it, because you will see the arrow moving, its there is 110w going this direction, ie from a to b whatever a and b happen to be.

I have never been confused by it, nor has anyone I have sent screen shots to, the website is clearer as its a whole line of arrows not that kind of pulse type line the app has. Based on this thread it only seems to confuse those who think it works different to how it does, ie the "normal" way.
When you see it in real time its pretty much impossible to be confused by it ;)
 
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I didn't see your ninja edit, like most things there's no standard (that I'm aware of), and as I said people in the know, thus Journey and myself both misread it. Anybody who's not more clued up won't know the difference they'll just get use to the way it displays the information.
 
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Ron-ski said:
I didn't see your ninja edit, like most things there's no standard (that I'm aware of), and as I said people in the know, thus Journey and myself both misread it. Anybody who's not more clued up won't know the difference they'll just get use to the way it displays the information.
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You've quoted normal conventions and no standard.
However this is simply an app, a visual representation.
As I said, as someone who uses it, its really obvious.
Probably you both got it wrong as you didn't look properly at what was presented and jumped to the point where you knew the answer. Or thought you did.

Seeing as there is no standard you should probably study whats there and not assume. You know what they say about assumptions ;)
 
The grid carbon intensity in my area right now is 8g CO2/kWh and it’s currently 40.5% wind, 30.5% nuclear and 27% solar with 2% gas and biomas.

Absolutely nuts, I’ve never seen it so low.

I expect wind turbines are being curtailed right now because we don’t have the pylons to send it down south yet.
 
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b0rn2sk8 said:
The grid carbon intensity in my area right now is 8g CO2/kWh and it’s currently 40.5% wind, 30.5% nuclear and 27% solar with 2% gas and biomas.

Absolutely nuts, I’ve never seen it so low.

I expect wind turbines are being curtailed right now because we don’t have the pylons to send it down south yet.
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Don't need it down south judging by the negative pricing. Generation exceeded demand grid wide most of the day looking at it.
 
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