Solar Power System by proxy

Speedster said:
CT coil inside the inverter is a clear sign the installer has no clue what it does. If it's set to zero export to load then it's not an issue though.
Click to expand...
Well, he is of the view that the grid connection wire is the same wire as in the main DB so should not make a difference since the power isn't split at any point.

Speedster said:
By default it's 5 mins. Can be changed to 1 Min.
Click to expand...
Can it be done on the web interface? Also is there a way to see total power usage for a certain period i.e. from 18:00 to 06:00 the following day.
 
Crusader said:
Well, he is of the view that the grid connection wire is the same wire as in the main DB so should not make a difference since the power isn't split at any point.
Click to expand...
As I said, he clearly doesn't understand the function.
Crusader said:
Can it be done on the web interface? Also is there a way to see total power usage for a certain period i.e. from 18:00 to 06:00 the following day.
Click to expand...
You need to request Deye support to change the refresh interval. I'm not too familiar with Solarman and Deye apps/web but you can pretty easily pull consumption charts for a specific time frame from Solarman business. I'd think Solarman and Deye cloud are the same.
 
Speedster said:
As I said, he clearly doesn't understand the function.

You need to request Deye support to change the refresh interval. I'm not too familiar with Solarman and Deye apps/web but you can pretty easily pull consumption charts for a specific time frame from Solarman business. I'd think Solarman and Deye cloud are the same.
Click to expand...
Yeah, I already stuck my neck out by asking the installer all the questions and pointing out issues. I don't disagree with you. Just thankful that there is no split between essential and non-essential loads so it should hopefully not be an issue.

I'll stick with the 5 min interval for now and see how that goes.

Still seeing a 100W-ish draw from the grid while load is being powered by the batteries. Is that normal?
 
Crusader said:
Yeah, I already stuck my neck out by asking the installer all the questions and pointing out issues. I don't disagree with you. Just thankful that there is no split between essential and non-essential loads so it should hopefully not be an issue.

I'll stick with the 5 min interval for now and see how that goes.

Still seeing a 100W-ish draw from the grid while load is being powered by the batteries. Is that normal?
Click to expand...
That's a bit higher than expected. Zero export power is set to 20W, so that should be the draw when load is fully powered by PV/battery
 
Its amazing how many of these installers blatantly ignore the install manuals and just do whatever they feel like.
 
Solar is looking much better than it did yesterday. Even though it was quite cloudy this morning the production is now keeping track with the consumption like it's supposed to be. None of the weirdness where the production jumped up and down despite a clear sky and couldn't meet demand. This is more what I expect things to look like.

1703240803535.png

Spoke to the installer regarding the 100W grid draw and he says that since they are planning to go with a prepaid meter once the municipality wakes up, it's better to have a higher draw to prevent any issues with the prepaid units they use.
 
Crusader said:
Solar is looking much better than it did yesterday. Even though it was quite cloudy this morning the production is now keeping track with the consumption like it's supposed to be. None of the weirdness where the production jumped up and down despite a clear sky and couldn't meet demand. This is more what I expect things to look like.

View attachment 1637057

Spoke to the installer regarding the 100W grid draw and he says that since they are planning to go with a prepaid meter once the municipality wakes up, it's better to have a higher draw to prevent any issues with the prepaid units they use.
Click to expand...
100w an hour??
 
Crusader said:
Yup, as I understand it. Although it's not 100% constant, it does vary from moment to moment.
Click to expand...
100w an hour seems really excessive. That will also happen on batteries and could affect things at night. That's 2.4 units a day just to what?
 
Lupus said:
100w an hour seems really excessive. That will also happen on batteries and could affect things at night. That's 2.4 units a day just to what?
Click to expand...

From what I can gather it has a dual purpose:

Zero Export Power’ is a small trickle power that will come from the grid to prevent any export.

Zero Export Power is the amount of power flowing from the grid to the inverter. Set this value to 20 –
100W to force the inverter to always take this amount of power from the grid to minimise the function ;
‘Reverse power Detection’ which can trip sensitive pre-paid electricity meters.

Normally this value is set to 20W.
 
Lupus said:
That instead of it only being 100w for 10 minutes that would only register as being a blip. Unless you want me to use 100Wh??
Click to expand...
100W is correct in this instance. Taken over a completely trivial timeframe of one hour that would be 100Wh. You could say 100Wh per hour but basic maths means that 100Wh/h would simply be 100W again.
 
It's also not as if the 100W disappears and is used for no purpose. It either goes towards the battery or load. So in a day you'd use 2.4 units of electricity at most. So 72 units in a month, which doesn't sound too bad to me for the convenience of having the grid available should you need it.
 
Crusader said:
It's also not as if the 100W disappears and is used for no purpose. It either goes towards the battery or load. So in a day you'd use 2.4 units of electricity at most. So 72 units in a month, which doesn't sound too bad to me for the convenience of having the grid available should you need it.
Click to expand...
Depending on the meter you have you could set that to 0W (which is where mine is at). You only use that draw to protect against highly sensitive meters which trip out on the slightest feedback.

It is weird though that it's importing 100W when set to 20W.
 
Speedster said:
Depending on the meter you have you could set that to 0W (which is where mine is at). You only use that draw to protect against highly sensitive meters which trip out on the slightest feedback.

It is weird though that it's importing 100W when set to 20W.
Click to expand...
I think the firmware update and factory reset might have changed that. Not sure if the value is overwritten somewhere else in the settings. I don't want to make too much of an issue of it. Landlords main reason for getting the solar system (aside from loadshedding) is to reduce the electricity bill. If they can achieve that they'll be happy.
 
Koosvanwyk said:
If you turn off the grid does the battery consumption go up with 96W (in this example)?
Click to expand...
Haven't tested it, but it shouldn't. This is power used from the grid to keep in sync with the grid, prevent export etc. If there is no grid there should not be any draw.
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X