Hello

I have read through the Deye manual but find the information, or "English" used a bit confusing

What is the point of the Battery First vs Load First option?

If "Load First" is solar power used to power your house directly and then excess power used to charge the battery?

Similarly if "Battery First" then solar power is used to charge the battery first then excess power used to supply the house load?

I was under the impression that the house load is always supplied from the battery and the battery is just then charged by either solar or grid but I guess this is perhaps not true in the scenario where you don't have batteries?

Thanks

9 minutes ago, MarkZA79 said:

Hello

I have read through the Deye manual but find the information, or "English" used a bit confusing

What is the point of the Battery First vs Load First option?

If "Load First" is solar power used to power your house directly and then excess power used to charge the battery?

Similarly if "Battery First" then solar power is used to charge the battery first then excess power used to supply the house load?

I was under the impression that the house load is always supplied from the battery and the battery is just then charged by either solar or grid but I guess this is perhaps not true in the scenario where you don't have batteries?

Thanks

As you say, if you choose "Load first" then the solar power will be prioritised towards first supplying the house, and then any surplus will go towards charging the battery.

If you choose battery first, then the solar power is directed to the battery as first priority, the surplus will go to the house next. But if you get much higher household loads, that's going to be supplemented from the grid, rather than by diverting more solar away from the battery.

It's a question of whether you want your battery to be full sooner rather than later, versus whether you want to minimise your purchases from Eskom.

The house is not always supplied directly from the battery. It can be supplied from three different sources, grid, battery or solar, blended in varying proportions, depending on your settings and the availability (or not) of any of those sources.

 

4 minutes ago, GreenFields said:

As you say, if you choose "Load first" then the solar power will be prioritized towards first supplying the house, and then any surplus will go towards charging the battery.

If you choose battery first, then the solar power is directed to the battery as first priority, the surplus will go to the house next. But if you get much higher household loads, that's going to be supplemented from the grid, rather than by diverting more solar away from the battery.

It's a question of whether you want your battery to be full sooner rather than later, versus whether you want to minimise your purchases from Eskom.

The house is not always supplied directly from the battery. It can be supplied from three different sources, grid, battery or solar, blended in varying proportions, depending on your settings and the availability (or not) of any of those sources.

 

Definitely minimize purchase from Eskom so in which case I would assume choose "Load First" so all load requirement is supplied from Solar ( and not Eskom ) and then excess goes to the battery. May aim is to have the batteries at 100% by 4PM in the afternoon. Currently I get to this easily by 12 noon, will differ in winter and cloudy days.

One might want battery first when loadshedding is due (sometimes unexpected due to schedule changes) and solar is predicted to be poor for the day.

How can I enforce the following scenario:

load is first served from PV then from batteries and if this is not enough then it should come from the grid. Currently I’m not able to achieve this result. 
 

check the pic below

what would the settings be?

1. Assuming the CT coil is installed correctly, you select the System Work Mode "Zero Export to CT."

2. Select Load Priority

3. Activate Time-of-Use, and select the minimum state-of-charge and Wattage according to your wishes for any time slot. Do not select grid-charge during the time you want to run from the battery.

Hi Everyone,

My Deye inverters are always charging my battery and I want the solar to power the load during the day. How do I get my Deye inverters to use Solar to power the load?
 

Currently I have “Zero Export To Load” and “ Load First” enabled.

On time of use, during the day I deselected the grid charge option. I checked that the settings are saved on both inverters. Interestingly enough the Time Of Use settings for daytime has “Grid Charge” disabled and battery SoC set to 80%, but the inverters keeps on charging the battery until it is 100% full. Once the battery is full the solar power usage decreases and is not used to power the load.

 

 

The graph timings look funny - unless its a Time setting issue but you shouldn't have PV at 00:00 - unless i am misreading this

Try selecting Zero export to CT  and set your 07:00 - 13:00 slots to something lower like 45% - PV should charge yuo up

Yeah I think check time and time zones, both on inverter and on the solar assistant 

Good evening, I purchased a photovoltaic system with storage batteries and deye sun-6k-sg03lp1-eu inverter. I have the following system configuration (without diesel generator):

 

 

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Where "Load" are backup loads and "Home Load" are non-privileged loads. System work mode is configured as "zero export to tc" selection.

 

I have two big problems:

1) Backup loads are powered by the battery only in the absence of grid. In conditions of grid presence, all the necessary power is taken from the grid (see photos)

 

 

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2) When I turn off the inverter the backup loads are de-powered even in the presence of the electricity grid.

 

How can I configure the inverter to solve the two problems described?

Can I use an external ATS to solve the second problem?

 

Thank you

 

Good day Sun people.

I have a Deye 5kW system with 5kW Freedom Won Lithium Battery installed. VERY happy with it. We seem to have Frequency (Hz) drops during the day and more prevalent at night 18:00 to about 21:00(below 49Hz). The system is set to have a SOC of 100% from 17:00 up to 22:00 - so I am drawing from Eskom at that time. What happens, is that when we have these 1 or 2 second drops, the inverter switches to backup and back to Eskom. This happens a lot and I have noticed that my Fridge compressor also loses power for that split second but then carries on working, LED's are flickering momentarily and so on. This is obviously an Eskom issue. What can I do to mitigate this as I believe that this was the cause of the compressor failing (Fridge 7 years old). Just to confirm, several of my neighbours are experiencing the same dip issue.

 

PS: Is there a better app to use other than the Solarman Smart App? I do not find it very useful and I do not get fault notifications. Which app was used by the above users? Is there a web based app as well?

 

Thank you.

Johan

10 hours ago, JohanSon said:

Good day Sun people.

I have a Deye 5kW system with 5kW Freedom Won Lithium Battery installed. VERY happy with it. We seem to have Frequency (Hz) drops during the day and more prevalent at night 18:00 to about 21:00(below 49Hz). The system is set to have a SOC of 100% from 17:00 up to 22:00 - so I am drawing from Eskom at that time. What happens, is that when we have these 1 or 2 second drops, the inverter switches to backup and back to Eskom. This happens a lot and I have noticed that my Fridge compressor also loses power for that split second but then carries on working, LED's are flickering momentarily and so on. This is obviously an Eskom issue. What can I do to mitigate this as I believe that this was the cause of the compressor failing (Fridge 7 years old). Just to confirm, several of my neighbours are experiencing the same dip issue.

 

PS: Is there a better app to use other than the Solarman Smart App? I do not find it very useful and I do not get fault notifications. Which app was used by the above users? Is there a web based app as well?

 

Thank you.

Johan

Somehow there seems to be a problem. The Eskom frequency is the same country wide. Thus yours cannot be different to say other areas. If it was at 49 Hz we would know about it. 

You can adjust the frequency down to 48.5Hz and if it helps. I drop in power for 1-2sec is very bad for a fridge that will still be under pressure. Better to have it off for 3min before powering up again. 

If the above does not solve it try the socket protector (R150) or even better the 63A unit that can cover the whole dwelling. 

 

Edited May 3, 20242 yr by Scorp007

9 hours ago, JohanSon said:

Good day Sun people.

I have a Deye 5kW system with 5kW Freedom Won Lithium Battery installed. VERY happy with it. We seem to have Frequency (Hz) drops during the day and more prevalent at night 18:00 to about 21:00(below 49Hz). The system is set to have a SOC of 100% from 17:00 up to 22:00 - so I am drawing from Eskom at that time. What happens, is that when we have these 1 or 2 second drops, the inverter switches to backup and back to Eskom. This happens a lot and I have noticed that my Fridge compressor also loses power for that split second but then carries on working, LED's are flickering momentarily and so on. This is obviously an Eskom issue. What can I do to mitigate this as I believe that this was the cause of the compressor failing (Fridge 7 years old). Just to confirm, several of my neighbours are experiencing the same dip issue.

 

PS: Is there a better app to use other than the Solarman Smart App? I do not find it very useful and I do not get fault notifications. Which app was used by the above users? Is there a web based app as well?

 

Thank you.

Johan

Many of us have abandoned the native apps that Deye/Sunsynk offer in favour of Solar Assistant. It runs of a raspberry pi and connects directly to the inverter. You can choose to keep access to it on a local network only or via an internet accessible portal

Easy to use web page based interface

Well worth the money in my opinion

 

 

On 2023/01/18 at 10:46 AM, GreenFields said:

As you say, if you choose "Load first" then the solar power will be prioritised towards first supplying the house, and then any surplus will go towards charging the battery.

If you choose battery first, then the solar power is directed to the battery as first priority, the surplus will go to the house next. But if you get much higher household loads, that's going to be supplemented from the grid, rather than by diverting more solar away from the battery.

It's a question of whether you want your battery to be full sooner rather than later, versus whether you want to minimise your purchases from Eskom.

The house is not always supplied directly from the battery. It can be supplied from three different sources, grid, battery or solar, blended in varying proportions, depending on your settings and the availability (or not) of any of those sources.

 

is this only for a Hybrid inverter or a normal inverter