A : PV generation is generally affected by different variables such as system settings, cable connections and environmental conditions:

System settings:

1. Negative tariff with AI mode: When the tariff is negative, it will be more profitable to buy electricity from the grid than PV generation. 

2. The remote EMS scheduling was enabled: System operating modes can be affected. Use this feature only if required.

3. Export limitation: If "Export limitation" is enabled and the battery has reached the charge cut-off SOC, the load does not work and the PV will not generate power.

4. System fault: Check if there have related alarms on the App

Cable connections:

1. Abnormal meter installation: Abnormal meter installation will affect related readings, system may operate abnormally due to incorrect readings. Please refer to the FAQ (If the meter is installed correctly?) for specific troubleshooting.

2. PV board fault or abnormal PV connection: Use a multimeter to measure the positive and negative voltages of the PV to confirm that the voltage values are normal and not reversed. Abnormal PV connection may be checked via "Diagnosis" on "MySigen App".

3. PV voltage too low: If the PV voltage is lower than the start-up voltage of the system, the PV will not generate power. Three-phase: not less than 220V, single-phase: not less than 120V;

4. PV voltage too low: If the voltage of the PV is too high, the device will trigger overvoltage protection and the PV will no longer generate electricity. Three-phase: not higher than 1000V, single-phase: not higher than 600V;

Environmental conditions:

1. Weather: such as temperature and weather forecast will degrade the PV generations, and this is irresistible

2. Shading: such as shadows, sunlight orientations and cloud shading on solar panels will affect the PV generation. Sigenergy will temporarily usie of grid power to balance out of the system and using power from the load. (Grid balancing will occur within 5 mins)

3. Consumption: PV generation will be determined by the load consumption including battery storage, as if the battery capacity is full, and your property has set with zero export to the gird, the PV will generate according to the requirements of load consumption.

A : The battery charge or discharge rate will be due for multiple conditions, including system setting, battery charging rate, cable connections, and other reasons:

System settings

1. Battery reaches charge cut-off SOC.

2. Discharging period in TOU mode.

3. AI mode was set: which will operate the system according to the system consumption and the agile tariff. When the tariff is low; the system will determine and use the grid power first; which has resulted the battery does not charge/discharge.

4. Fully fed into grid mode was set: When storage battery is installed, do not set this mode.

5. The remote EMS scheduling was enabled: This setting will allow 3rd party energy company to control your batteries (known as virtual power plant (VPP), as if the customer have not sign the VPP agreement, the battery will not charge or discharge.

6. Max self-consumption mode was set: PV does not generate electricity or PV generates only enough to supply the load.

7. Import limitation was set.

Cable connections

Abnormal meter installation: When the tariff is negative, it will be more profitable to buy electricity from the grid than PV generation. Please refer to the FAQ (If the meter is installed correctly?) for specific troubleshooting.

Battery charging rate

The battery electron movement will be affected by the temperature, when the temperature is lower, the movement will charge slower but consume faster; when the battery does not charge, it might be due to the battery temperature; as the battery has heat plate inside the battery structure, therefore, customers may see the battery is charging slow at the beginning; but after a while, the battery charging speed will tend to faster.

Other reasons

1. Hybrid inverter without license: Please contact your distributor to purchase a license.

2. Battery fault: Check if there have related alarms on the App.

A : AI mode is a feature that utilizes artificial intelligence algorithms to analyze and learn from a user's electricity consumption data and local electricity price information. It predicts the user's future electricity demand and price trends. Based on these predictions, AI mode automatically adjusts the system's operation strategy to achieve optimal energy utilization efficiency and cost savings.

For example, during periods of low electricity prices, AI mode will adjust the system to store electricity in the battery for later use during peak hours, avoiding the need to purchase expensive electricity from the grid. Conversely, during periods of high electricity prices, AI mode will prioritize using the stored energy in the battery to minimize electricity purchases from the grid and reduce costs.

A : There may be the following reasons:

1. Abnormal wiring on AC side or AC switch not closed

Please check the AC wiring to make sure it is secure. This can be checked via ‘Diagnosis’ on ‘MySigen App’.

2. PV and batteries can provide the power needed for the loads

3. AI mode with high tariff

Reducing the electricity taken from the grid to save money during times of high tariff.

4. Abnormal meter installation

Abnormal meter installation will affect related readings, system may operate abnormally due to incorrect readings.

Please refer to the FAQ (If the meter is installed correctly?) for specific troubleshooting.

5. The remote EMS scheduling was enabled

System operating modes can be affected. Use this feature only if required.

6. Off-gird

System will be switched to off-grid mode when the grid fluctuates more than the threshold value. Please check the voltage of the grid.

7. Import limitation was set

A : There may be the following reasons:

1. The Export limitation was enabled

2. Currently in off-grid mode

System will be switched to off-grid mode when the grid fluctuates more than the threshold value. Please check the voltage of the grid.

3. Abnormal meter installation

Abnormal meter installation will affect related readings, system may operate abnormally due to incorrect readings.

Please refer to the FAQ (If the meter is installed correctly?) for specific troubleshooting.

4. The remote EMS scheduling was enabled

System operating modes can be affected. Use this feature only if required.

5. All the power from the PV is consumed by the load or battery

A : This alarm will appear if abnormal AC or DC side voltage is detected when the device is switched on:

1. check the grid-side voltage to see if there is a large voltage fluctuation.

2. check the PV voltage to make sure whether it exceeds the maximum value allowed for PV, which is not more than 1000V for three-phase and 600V for single-phase.

A : Yes, you can operate the system offline. However, it is recommended to keep the system connected to the internet for optimal performance and to access additional features and functionalities. If the system is unable to connect to the internet for an extended period of time (30 days for example), some functions will be limited for safety concerns.

A : It is not supported currently.

A : It is not supported currently.

A : 1. Vehicle: Check if the vehicle has set input current limits;

2. Equipment: It is related to the maximum output power of the inverter/current output power of the PV panel/maximum output power of the battery.

   *For example, if the rated power of EVDC is 25kw, the maximum output power of the inverter is A=11kw, the maximum output power of the battery is B=4kw, and the current output power of PV is C=2kw, then the theoretical maximum output power of the equipment at this time is D=A+B+C=17kw rather than 25kw

A : 1. mySigen Version 1.7 and above;

2. Setting Team info;

3. Copy the "company invitation code" in "Add sub installer" and send the code separately to the sub-installer, such as by email, etc.

4. After submitting the "Join the upper level installer", the sub-installer will automatically display it in the account of upper level installer.