W@P's Solar System

BuckRogers said:
Pls explain how the Gen change over works now that solar is installed.
I have a gen switch over and was wondering what the options are when adding solar.
Will the generator output be added to the solar when running?
Click to expand...
@RonSwanson can comment on this he has a genny on his
 
BuckRogers said:
Pls explain how the Gen change over works now that solar is installed.
I have a gen switch over and was wondering what the options are when adding solar.
Will the generator output be added to the solar when running?
Click to expand...
My gen change over has eskom in the one side and gen on the other. Atm it is on eskom so if i need to pull any power from the grid it will be from eskom. If i change the switch to gen the gen will be supplying any power needed. The inverter does not know if its the gen or eskom thats feeding.
 
semaphore said:
Okay cool @RonSwanson mentioned something about warranty and DOD less than 10%, so was just curious.
Click to expand...
The pylontech bms limits the maximum DOD even if you set it lower on the inverter, the BMS will not allow the battery to go lower.

If the battery does drop to 8% then the BMS can and will force a charge from the grid to get it back to 15% even if you do not have grid charge activated on the inverter settings.

The BMS is designed to manage and protect the battery bank. That's why its important to have bms coms working with the inverter.

I'm not sure about the hubble but this is my experience with my pylontech batteries.
 
This was the pylontech bms requesting a force charge from the grid as the battery dropped to 8% as it was consuming power while it was idle and there was nothing coming in from solar at the time.

It stopped the force charge when the battery got up to 15%962401638.jpg
 
I was actually pleasantly surprised by the BMS and glad I went with the pylontech batteries. The amount of control it has over the inverter when it comes to managing the battery is not advertised or indicated anywhere.
 
Hopefully, sunsynk update the firmware to integrate nicely into the hubbles soon.
 
AchmatK said:
I was actually pleasantly surprised by the BMS and glad I went with the pylontech batteries. The amount of control it has over the inverter when it comes to managing the battery is not advertised or indicated anywhere.
Click to expand...
on the forced charge on a few occasions I have dropped sub 10% when connected to the grid and it did the FORCE CHARGE to 15% last night being a good example

1640684223657.png
 
Today has been a very good day - have been able to run pool pump since 10am, did 3 loads of washing and a dishwasher load.

1640697738769.png

Yesterday not so much

1640697830500.png

Yesterday showed me:
  1. I need more panels 2 more on the current MPPT facing north - and i need to add 6-8 onto the West facing roof on MPPT2
  2. I need another battery - same capacity will do but hopefully i can get the next capacity up (9.6kwh)
 
Mzezman said:
Today has been a very good day - have been able to run pool pump since 10am, did 3 loads of washing and a dishwasher load.

View attachment 1218822

Yesterday not so much

View attachment 1218826

Yesterday showed me:
  1. I need more panels 2 more on the current MPPT facing north - and i need to add 6-8 onto the West facing roof on MPPT2
  2. I need another battery - same capacity will do but hopefully i can get the next capacity up (9.6kwh)
Click to expand...
Similar results my side yesterday with the heavy rain etc. On the three batteries I made it the entire day till the evening when I finally had to switch the grid back on.

1640698768890.png
Today on the other hand ran the dishwasher and made bagels in the oven after boiling them on the stove

1640698839177.png


Sun powered bagels - om nom nom. Wont lie there is something super satisfying about using the oven/induction stove on solar

1640698978011.png
 
Last edited:
BuckRogers said:
Pls explain how the Gen change over works now that solar is installed.
I have a gen switch over and was wondering what the options are when adding solar.
Will the generator output be added to the solar when running?
Click to expand...
It looks like you have installed the generator before the inverter, so the inverter will treat it the same as it does the grid (i.e. blend Grid and Solar).
There are many more options if you use the Gen / Aux port, you can specify using Grid or Gen to charge batteries, the Gen charge or consumption rate and Gen / Aux peak shaving.

Bottom line is that you cannot use the Grid and Genny simultaneously (which is obvious in your setup, but not so obvious when using the Gen / Aux port).
 
Mzezman said:
  1. I need more panels 2 more on the current MPPT facing north - and i need to add 6-8 onto the West facing roof on MPPT2
  2. I need another battery - same capacity will do but hopefully i can get the next capacity up (9.6kwh)
Click to expand...
Don't we all. Welcome to the club. :laugh::ROFL:
 
RonSwanson said:
It looks like you have installed the generator before the inverter, so the inverter will treat it the same as it does the grid (i.e. blend Grid and Solar).
There are many more options if you use the Gen / Aux port, you can specify using Grid or Gen to charge batteries, the Gen charge or consumption rate and Gen / Aux peak shaving.

Bottom line is that you cannot use the Grid and Genny simultaneously (which is obvious in your setup, but not so obvious when using the Gen / Aux port).
Click to expand...
Yes, my gen/eskom change over is before the inverter. Change over was already there before the solar installation so we left it like that instead of connecting the gen to the inverters gen input.
 
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