Solar Power System by proxy

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.
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I have the grid available and don't have that 72 units disappearing also 2.4 units is half my daily usage.
 
Lupus said:
I have the grid available and don't have that 72 units disappearing also 2.4 units is half my daily usage.
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I'm learning this stuff as I go and taking the installer's word for it. I'm sure it can be adjusted if it becomes an issue.

Is yours set to 20W (which would be 0.48 units/day)?
 
Crusader said:
I'm learning this stuff as I go and taking the installer's word for it. I'm sure it can be adjusted if it becomes an issue.

Is yours set to 20W (which would be 0.48 units/day)?
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Nothing, but it's a Mecer.
 
Crusader said:
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.
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Seems odd that it is using 100w when set to 20w trickle feed. Mine matches exactly to what I set

If you set the trickle feed to 120w (100w increase) does the grid load increase to approximately 200w (similar 100w increase)? .

Perhaps test by dropping the individual circuit breakers to see if it is perhaps a specific circuit causing the anomaly.
 
Koosvanwyk said:
Seems odd that it is using 100w when set to 20w trickle feed. Mine matches exactly to what I set

If you set the trickle feed to 120w (100w increase) does the grid load increase to approximately 200w (similar 100w increase)? .

Perhaps test by dropping the individual circuit breakers to see if it is perhaps a specific circuit causing the anomaly.
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I can't mess around with changing settings as I don't want to step on the installer's toes. Installer seems to think the behavior is normal so just want to make sure it is. If he comes by to check on the system I'll ask him about it again and perhaps suggest he test it by changing the trickle feed.
 
Koosvanwyk said:
Seems odd that it is using 100w when set to 20w trickle feed. Mine matches exactly to what I set
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Ive seen the inverter do that when the CT coil is backwards and the inverter configured incorrectly. Looking at the negative number posted for the CT coil that is likely the case.
 
B-1 said:
Ive seen the inverter do that when the CT coil is backwards and the inverter configured incorrectly. Looking at the negative number posted for the CT coil that is likely the case.
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But the inverter shows the power as coming from the grid (arrow away from grid icon). If the CT coil was installed backwards wouldn't it show as feeding into the grid?
 
Crusader said:
But the inverter shows the power as coming from the grid (arrow away from grid icon). If the CT coil was installed backwards wouldn't it show as feeding into the grid?
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The wires could be the wrong way round. Can you open the front bottom panel and take a picture?
 
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?
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Some meters trip if you do less (I had one) - anything less than 100w and the prepaid went in to anti tampering mode. I got it replaced with a newer unit and I could then set it to 0w and it was happy.
 
System seems to be performing pretty well now. So far it more than covers our daily consumption and the only grid usage is the 2 units of power used for the trickle feed. I was really impressed that even while we were pretty much completely overcast early this morning we still got 2 kW of power with very dark cloud cover.
 
Any tips on how to handle cloudy weather?

For some reason ESKOM decided that they have to replace a pole today, so we have been without grid power since 8 AM. It's overcast and production is just about enough to cover usage and charge a bit of battery. If there's a brief break in the clouds we are golden, but rest of the time it's a close call.

1704015865780.png
 
Crusader said:
Any tips on how to handle cloudy weather?

For some reason ESKOM decided that they have to replace a pole today, so we have been without grid power since 8 AM. It's overcast and production is just about enough to cover usage and charge a bit of battery. If there's a brief break in the clouds we are golden, but rest of the time it's a close call.

View attachment 1639723
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But you've got 70% SoC so shouldn't be any problems.
 
Speedster said:
But you've got 70% SoC so shouldn't be any problems.
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I'm just looking for general tips/lessons learned.

Today we should be fine, but yesterday was tough since batteries were at 30% during the morning and only managed to charge to 80% which resulted in quite a bit of grid usage for the day (15 units).
Mzezman said:
He’s in that phase we all were at some point of watching and tracking all variables at all times ….
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True. :D
 
Crusader said:
Any tips on how to handle cloudy weather?

For some reason ESKOM decided that they have to replace a pole today, so we have been without grid power since 8 AM. It's overcast and production is just about enough to cover usage and charge a bit of battery. If there's a brief break in the clouds we are golden, but rest of the time it's a close call.

View attachment 1639723
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Use grid, unless there is no grid than generator to get batteries up
 
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