Hybrid inverter for home and power storage – hybrid inverter from GoodWe with data sheet (PDF)

A hybrid inverter is a clever combination of a conventional inverter and energy storage. It converts the direct current from your solar system into usable alternating current and can also temporarily store solar power with either an internal or external solar battery. This means you can use the electricity you generate yourself at any time - even when the sun isn't shining.

Installing a hybrid inverter makes particular sense if you already have an existing solar system. With a hybrid inverter, you can easily supplement your existing system and immediately benefit from the advantages of storing electricity.

Most inverters for hybrid systems with a power storage system are intelligent devices that automatically regulate various parameters. This includes the voltage (volts), the power (watts) and the quality of the electricity that is charged by the energy storage device.

However, some inverters also have manual controls, so you can make the settings yourself. In this case, you should contact the manufacturer to find out which parameters can be influenced and which cannot.

If you want to install a hybrid system with an inverter and a power storage unit, you should make sure that it has been specifically developed to operate in such a system. This is the only way to ensure that it provides all the necessary functions and optimally synchronizes with the power storage system.

Also make sure that the hybrid elements in question, such as inverters and power storage devices, are compatible with each other, as this is not always the case.

It is also important to know what requirements are placed on the inverter. In particular, you have to ask yourself whether the inverter is primarily intended for use with a photovoltaic system or for use with a wind energy system. Depending on the purpose for which the inverter is intended, different models come into question. The requirements for an inverter also depend on the size of the photovoltaic system:

• Micro inverter
• String inverter
• Multistring inverter
• Central inverter

Single phase or three phase inverter?

A three-phase inverter can offer many advantages over a single-phase inverter. For example, it can deliver higher voltage and power and is more robust. Above 4.6 kVA, a three-phase inverter is mandatory. Of course you could connect a 5.76 kW system to a 4.6 kVA inverter, but this would result in major losses.

Although small systems can still be operated with a single-phase inverter, this is not advisable as there are no options for expansion or modernization.

The difference between volt amps and watts

Volt Amps (VA) = Volts x Amps
Watts = Volts x Amps

In fact, at first glance there is no difference.

The difference lies in the detail and the way it is viewed or used. Here are a few good approaches:

• The momentous difference between watts and volt amps
• The difference between volt-amperes (VA) and watts (W) explained simply
• What is the difference between VA and Watt?

For simplification:

I explained this to my children by saying that watt is where the electrical energy is used and used, i.e. “consumed” or converted – into light, heat, etc

Voltamperes is where the electricity comes from and is ready to be used. So “wait in front of the door” or at the socket for use.

When it comes to the inverter, that fits quite well. The links above explain in detail why there are differences.

GoodWe ET series and the ET Plus series – also hybrid or bidirectional solar inverters

The ET Series and ET Plus Series, also called hybrid or bidirectional solar inverters, provide energy management in a PV system that includes solar panels, a battery, loads and a grid connection.

The energy generated by the PV system is primarily used to supply consumers and excess energy is used to charge the battery. When the battery is fully charged, excess energy can be released into the utility grid (if permitted).

The inverter power limit (WGra) does not apply to the operation of the mode of changes in power source operation.

The battery discharges to support loads when PV output is insufficient to meet self-consumption needs. If the battery power is insufficient, the system draws power from the public grid to supply consumers.

• PDF GoodWe hybrid inverter data sheet (HV/high voltage) ET PLUS series
• PDF GoodWe hybrid inverter operating instructions for the ET series
• PDF GoodWe Hybrid Inverter Installation Quick Start Guide ET Series
• PDF GoodWe Hybrid Inverter User Manual ET Series and ET Plus Series

GoodWe hybrid inverter (HV) three-phase ET-Plus 5kW - GW5K-ET

Battery input data

Battery Type : Li-ion
Battery Voltage Range (V) : 180~600
Max Charge/Discharge Current (A) : 25
Li-ion Battery Charging Strategy : Self-adaptation to BMS
PV string input data
Max DC Input Power (W) : 6500
Max. DC input voltage (V)*1 : 1000
MPPT range (V) : 200~850
Starting voltage (V) : 180
Min. input voltage (V)*7 : 210
MPPT full load range (V) : 240~850
Nominal input voltage (V) : 620
Max. input current (A) : 12.5/12.5
Max. short-circuit current (A) : 15.2/15.2
Number of MPP trackers : 2
Number of strands per MPPT : 1/1

AC output data (grid-connected)

Nominal apparent power to the mains (VA) : 5000
Max. apparent power to the mains (VA)*2*6 : 5500
Nominal apparent power from the mains (VA) : 10000
Max. apparent power from the mains (VA) : 10000
Nominal output voltage (V) : 400/380 , 3L/N/PE
Rated output frequency (Hz) : 50/60
Max. AC current output to mains (A) : 8.5
Max. AC current from mains (A) : 15.2
Output power factor : ~1 (adjustable from 0 .8 leading to 0.8 lagging)
Output THDi (at nominal power): < 3%

AC output data (backup)

Back-up rated apparent power (VA) : 5000
Max. output apparent power (VA) : 5000
Peak output apparent power (VA)*3 : 10000, 60 sec.
Max. output current (A) : 8.5
Rated output voltage (V) : 400 /380
Rated output frequency (Hz) : 50/60
Output THDv (at linear load) : < 3%

Efficiency

Max. Efficiency: 98.00%
Max. Battery-Load Efficiency: 97.50%
European Efficiency: 97.20%
MPPT Efficiency: 99.90%

* Current certificates can be found on the GoodWe website.
*1 For a 1000V system, the maximum operating voltage is 950V. For AustraliaL safety, a warning will be issued when the PV voltage is > 600V.
*2 According to local grid regulations.
*3 Can only be achieved when the PV and battery power is sufficient.
*4 CAN communication is configured by default.
If 485 communication is used, please swap the corresponding communication line. *5 No backup output.
*6 Max. output apparent power (VA) for Belgium: GW5K-ET: 5000;
GW6.5K-ET: 6500; GW8K-ET: 8000; GW10K-ET: 10000. *7 If no battery is connected, the inverter only starts feeding when the string voltage is higher than 400 V.

GoodWe hybrid inverter (HV) three-phase ET-Plus 6.5kW - GW6.5K-ET

Battery input data

Battery Type : Li-ion
Battery Voltage Range (V) : 180~600
Max Charge/Discharge Current (A) : 25
Li-ion Battery Charging Strategy : Self-adaptation to BMS
PV string input data
Max DC Input Power (W) : 8450
Max. DC input voltage (V)*1 : 1000
MPPT range (V) : 200~850
Starting voltage (V) : 180
Min. input voltage (V)*7 : 210
MPPT full load range (V) : 310~850
Nominal input voltage (V) : 620
Max. input current (A) : 12.5/12.5
Max. short-circuit current (A) : 15.2/15.2
Number of MPP trackers : 2
Number of strands per MPPT : 1/1

AC output data (grid-connected)

Nominal apparent power to the mains (VA) : 6500
Max. apparent power to the mains (VA)*2*6 : 7150
Nominal apparent power from the mains (VA) : 13000
Max. apparent power from the mains (VA) : 13000
Nominal output voltage (V) : 400/380 , 3L/N/PE
Rated output frequency (Hz) : 50/60
Max. AC current output to mains (A) : 10.8
Max. AC current from mains (A) : 19.7
Output power factor : ~1 (adjustable from 0 .8 leading to 0.8 lagging)
Output THDi (at nominal power): < 3%

AC output data (backup)

Back-up rated apparent power (VA) : 6500
Max. output apparent power (VA) : 6500
Peak output apparent power (VA)*3 : 13000, 60 sec.
Max. output current (A) : 10.8
Rated output voltage (V) : 400 /380
Rated output frequency (Hz) : 50/60
Output THDv (at linear load) : < 3%

Efficiency

Max. Efficiency: 98.00%
Max. Battery-Load Efficiency: 97.50%
European Efficiency: 97.20%
MPPT Efficiency: 99.90%

* Current certificates can be found on the GoodWe website.
*1 For a 1000V system, the maximum operating voltage is 950V. For AustraliaL safety, a warning will be issued when the PV voltage is > 600V.
*2 According to local grid regulations.
*3 Can only be achieved when the PV and battery power is sufficient.
*4 CAN communication is configured by default.
If 485 communication is used, please swap the corresponding communication line. *5 No backup output.
*6 Max. output apparent power (VA) for Belgium: GW5K-ET: 5000;
GW6.5K-ET: 6500; GW8K-ET: 8000; GW10K-ET: 10000. *7 If no battery is connected, the inverter only starts feeding when the string voltage is higher than 400 V.

GoodWe hybrid inverter (HV) three-phase ET-Plus 8kW - GW8K-ET

Battery input data

Battery Type : Li-ion
Battery Voltage Range (V) : 180~600
Max Charge/Discharge Current (A) : 25
Li-ion Battery Charging Strategy : Self-adaptation to BMS
PV string input data
Max DC Input Power (W) : 9600
Max. DC input voltage (V)*1 : 1000
MPPT range (V) : 200~850
Starting voltage (V) : 180
Min. input voltage (V)*7 : 210
MPPT full load range (V) : 380~850
Nominal input voltage (V) : 620
Max. input current (A) : 12.5/12.5
Max. short-circuit current (A) : 15.2/15.2
Number of MPP trackers : 2
Number of strands per MPPT : 1/1

AC output data (grid-connected)

Nominal apparent power to the mains (VA) : 8000
Max. apparent power to the mains (VA)*2*6 : 8800
Nominal apparent power from the mains (VA) : 15000
Max. apparent power from the mains (VA) : 15000
Nominal output voltage (V) : 400/380 , 3L/N/PE
Rated output frequency (Hz) : 50/60
Max. AC current output to mains (A) : 13.5
Max. AC current from mains (A) : 22.7
Output power factor : ~1 (adjustable from 0 .8 leading to 0.8 lagging)
Output THDi (at nominal power): < 3%

AC output data (backup)

Back-up rated apparent power (VA) : 8000
Max. output apparent power (VA) : 8000
Peak output apparent power (VA)*3 : 16000, 60 sec.
Max. output current (A) : 8.5 13.5
Rated output voltage (V ) : 400/380
Rated output frequency (Hz) : 50/60
Output THDv (at linear load) : < 3%

Efficiency

Max. Efficiency: 98.20%
Max. Battery-Load Efficiency: 97.50%
European Efficiency: 97.50%
MPPT Efficiency: 99.90%

* Current certificates can be found on the GoodWe website.
*1 For a 1000V system, the maximum operating voltage is 950V. For AustraliaL safety, a warning will be issued when the PV voltage is > 600V.
*2 According to local grid regulations.
*3 Can only be achieved when the PV and battery power is sufficient.
*4 CAN communication is configured by default.
If 485 communication is used, please swap the corresponding communication line. *5 No backup output.
*6 Max. output apparent power (VA) for Belgium: GW5K-ET: 5000;
GW6.5K-ET: 6500; GW8K-ET: 8000; GW10K-ET: 10000. *7 If no battery is connected, the inverter only starts feeding when the string voltage is higher than 400 V.

GoodWe hybrid inverter (HV) three-phase ET-Plus 10kW - GW10K-ET

Battery input data

Battery Type : Li-ion
Battery Voltage Range (V) : 180~600
Max Charge/Discharge Current (A) : 25
Li-ion Battery Charging Strategy : Self-adaptation to BMS
PV string input data
Max DC Input Power (W) : 13000
Max. DC input voltage (V)*1 : 1000
MPPT range (V) : 200~850
Starting voltage (V) : 180
Min. input voltage (V)*7 : 210
MPPT full load range (V) : 460~850
Nominal input voltage (V) : 620
Max. input current (A) : 12.5/12.5
Max. short-circuit current (A) : 15.2/15.2
Number of MPP trackers : 2
Number of strands per MPPT : 1/1

AC output data (grid-connected)

Nominal apparent power to the mains (VA) : 10000
Max. apparent power to the mains (VA)*2*6 : 11000
Nominal apparent power from the mains (VA) : 15000
Max. apparent power from the mains (VA) : 15000
Nominal output voltage (V) : 400/380 , 3L/N/PE
Rated output frequency (Hz) : 50/60
Max. AC current output to mains (A) : 16.5
Max. AC current from mains (A) : 22.7
Output power factor : ~1 (adjustable from 0 .8 leading to 0.8 lagging)
Output THDi (at nominal power): < 3%

AC output data (backup)

Back-up rated apparent power (VA) : 10000
Max. output apparent power (VA) : 10000
Peak output apparent power (VA)*3 : 16500, 60 sec.
Max. output current (A) : 16.5
Rated output voltage (V) : 400 /380
Rated output frequency (Hz) : 50/60
Output THDv (at linear load) : < 3%

Efficiency

Max. Efficiency: 98.20%
Max. Battery-Load Efficiency: 97.50%
European Efficiency: 97.50%
MPPT Efficiency: 99.90%

* Current certificates can be found on the GoodWe website.
*1 For a 1000V system, the maximum operating voltage is 950V. For AustraliaL safety, a warning will be issued when the PV voltage is > 600V.
*2 According to local grid regulations.
*3 Can only be achieved when the PV and battery power is sufficient.
*4 CAN communication is configured by default.
If 485 communication is used, please swap the corresponding communication line. *5 No backup output.
*6 Max. output apparent power (VA) for Belgium: GW5K-ET: 5000;
GW6.5K-ET: 6500; GW8K-ET: 8000; GW10K-ET: 10000. *7 If no battery is connected, the inverter only starts feeding when the string voltage is higher than 400 V.

Islanding protection : Integrated
PV string input reverse polarity protection : Integrated
Insulation resistance measurement : Integrated
Residual current monitoring unit : Integrated Output
overcurrent protection : Integrated
Output short circuit protection : Integrated
Battery input reverse polarity protection : Integrated
Output overvoltage protection : Integrated

Operating Temperature Range (°C) : -35~60
Relative Humidity : 0~95%
Operating Altitude (m) : £4000
Cooling : Natural Convection
Noise (dB) : <30
User Interface : LED & APP
Communication with BMS*4 : RS485;
CAN Communication with meter : RS485
Communication with EMS : RS485 (isolated)
Communication with portal : Wi-Fi
Weight (kg) : 24
Dimensions (width × height × depth mm) : 415 × 516 × 180
Mounting : Wall mount
Protection class : IP66
Standby Internal consumption (W)*5 : < 15
Topology : Battery not isolated

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