New to LUX3.6 ACS

Solarchaser

When they hit 10% they stop discharging. And the house runs of the grid as usual. 
Next day when sun is out.... or your cheaper tarrif clicks on, they start charging up again.

But if for instance you have a day like yesterday where its very bright, then very dull, they do charge and discharge in line with the house demands and solar surplus.
So you can see 35%, then 20% then 30% etc etc

Edit, a picture says 1000 words.
Blue line is battery, green is solar.
Orange is house demand, black is grid



So yesterday the solar was up and down and so the battery charging was the same, when blue is below the zero, the batteries are being charged, when blue is above the zero the batteries as discharging to meet the load.
The 3 negative black peaks are the 10kw shower, so more than the batteries can cover (this is one system of the two).
Then later at night I move into my go faster tariff,  id noted today was gonna be very dull so I set the batteries to charge at 70% for the 3 hours

QrizB

Solarchaser said:

But if for instance you have a day like yesterday where its very bright, then very dull, they do charge and discharge in line with the house demands and solar surplus.

I had a day like that on Friday. It was sunny intervals and showers. I put a load of laundry on which draws between 400W ans 2kW depending on where it is in the cycle. When the sun was shining the battery charged up, then when the cloud came over it discharged again. I think I cycled ~2kWh into my battery and out again, which is quite something when you think it's only a 1.28kWh battery!

TheMaster_2

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

TheMaster_2

I also have a ASHP, the Mitshubshi Ecodan. Worst of the winter days last year I was using 60kWh per day. But I don't have gas anymore so swings and roundabouts. We are a high power use house, 12,000kWh PA. I generate around 10kWh PA, but obviously can't use it all as some gets exported we have 14.4kWh in Pylontech batteries and with Lux invertor, we use around 65% of it the rest we import.
However, just invested in a wind farm through Ripple energy that comes online around xmas this year so that will be interesting to see how that goes.

Solarchaser

TheMaster_2 said:

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

I assume you mean they "start to charge " if there is excess solar, or a command to charge from grid.

They shouldn't start to charge from the grid because they have reached 10%
They should sit, as mine are now, at 10% until I either tell them to charge, or it gets sunnier

EVandPV

Solarchaser said:

TheMaster_2 said:

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

I assume you mean they "start to charge " if there is excess solar, or a command to charge from grid.

They shouldn't start to charge from the grid because they have reached 10%
They should sit, as mine are now, at 10% until I either tell them to charge, or it gets sunnier

Sounds like your pv generation was as good as ours today. 
Our batts are sitting at 12%. 

Another cracking Scottish summers day.
Just glad we're not still on Agile ! 

mickyduck55

EVandPV said:

Solarchaser said:

TheMaster_2 said:

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

I assume you mean they "start to charge " if there is excess solar, or a command to charge from grid.

They shouldn't start to charge from the grid because they have reached 10%
They should sit, as mine are now, at 10% until I either tell them to charge, or it gets sunnier

Sounds like your pv generation was as good as ours today. 
Our batts are sitting at 12%. 

Another cracking Scottish summers day.
Just glad we're not still on Agile ! 

Reasonable day here a lot of rain but batteries still managed to top out at 100% and exported 2.4 kWh.....

TheMaster_2

Solarchaser said:

TheMaster_2 said:

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

I assume you mean they "start to charge " if there is excess solar, or a command to charge from grid.

They shouldn't start to charge from the grid because they have reached 10%
They should sit, as mine are now, at 10% until I either tell them to charge, or it gets sunnier

Yes correct Solarchaser, sorry badly worded that

Solarchaser

EVandPV said:

Solarchaser said:

TheMaster_2 said:

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

I assume you mean they "start to charge " if there is excess solar, or a command to charge from grid.

They shouldn't start to charge from the grid because they have reached 10%
They should sit, as mine are now, at 10% until I either tell them to charge, or it gets sunnier

Sounds like your pv generation was as good as ours today. 
Our batts are sitting at 12%. 

Another cracking Scottish summers day.
Just glad we're not still on Agile ! 

A total of 20.2kwh which isn't terrible,  however the house has used over 30kwh.
I have had to buy 8kwh at full price which makes me sad, first time in about 5 months.
However having sporadically looked at agile pricing, yeah im totally with you,  every time I look, even the "good" periods seem to be above 20ppkwh

Solarchaser

TheMaster_2 said:

Solarchaser said:

TheMaster_2 said:

Spies said:

Thanks for that, what does the system do when the batteries hit their max DOD, do they have to charge back up to a certain level until they can be used by the system otherwise they would be in a constant state of charge/discharge? 

Once the batteries are at 10% and they start to charge, they won't output anything until they hit 15%. Then they would potentially discharge to 10% again if the sun went in and you had the demand

Edit thats assuming you have the 90% DOD batteries, not sure on the 95% DOD ones

I assume you mean they "start to charge " if there is excess solar, or a command to charge from grid.

They shouldn't start to charge from the grid because they have reached 10%
They should sit, as mine are now, at 10% until I either tell them to charge, or it gets sunnier

Yes correct Solarchaser, sorry badly worded that

No worries at all, just confirming as iirc some of the people using uhome batteries reported the behaviour i thought you were describing and I was starting to wonder if it was actually a system setting since you have pylons