Growatt Retrofit Kit 7.68kWh ARK SPH 10000TL3 BH-UP Hybrid Inverter LiFePO4 Storage

The Growatt storage retrofit kit is ideal for expanding your existing solar system. The system includes (depending on your selection) 3-10 ARK 2.5H-A1 modular, stackable high-voltage batteries, each with a nominal voltage of 51.2V and a modern LiFePO4 battery typethe accompanying HVC 60050-A1 BMS control unit and battery base for floor mounting complete the tower. In addition, the set includes a 3-phase SPH 10000TL3 BH-UP hybrid inverter. A battery connection cable set is included to connect the battery tower to the inverter.

Installation note: As this device or component is not ready for connection, it must only be connected and installed by a qualified electrician. Please observe the instructions for use!

• Modular, stackable battery concept
• 100% three-phase asymmetric output
• Intelligent power control at phase level
• UPS function with 10 ms switchover time
• VPP interface

The retrofit kit includes:

• 3-10x Growatt ARK 2.5H-A1 high-voltage LiFePO4 battery 2.56kWh (depending on selection)
• 1x Growatt SPH 10000TL3 BH-UP 10kW hybrid inverter, 3-phase
• 1x Growatt HVC 60050-A1 ARK control unit BMS for SPH and SPA inverters
• 1x Growatt battery base for ARK-2.5-A1 XH/HV series
• 1x Growatt ARK-2.5H-A1 battery connection cable set for SPH and SPA inverters

Growatt ARK 2.5H-A1 high-voltage battery

The Growatt ARK 2.5H-A1 high-voltage battery (MPN ARK-2.5H-A1) is a LiFePO4 storage device with high cycle stability and a long service life. The modular, stackable design allows for flexible application in various scenarios and is easy to install. The battery offers excellent performance under high loads and, with its IP65 protection, is also suitable for outdoor installation. Soft start is used to prevent overvoltage in the system.

about the ARK 2.5H-A1 battery:

• Modular, stackable battery concept
• Cobalt-free lithium iron phosphate (LFP)
• High cycle stability and long service life
• Wall or floor installation possible
• Soft start to protect the system from overvoltage
• Automatic wake-up in case of undervoltage
• IP65 protection rating for outdoor installation
• Remote diagnosis and firmware update
• Battery base and battery connection set integrated in retrofit kit

The ARK battery system

Thanks to its modular design, the ARK system is flexible in use and can be expanded as required. A battery tower can be constructed with a minimum of 2 and up to 10 storage modules, and several towers can also be installed in one system. Each tower requires a BMS control element and a connection cable set to the corresponding inverter for operation. A battery base per tower is also required for floor installation. ARK high-voltage storage systems are compatible with MIN and MOD-XH inverters, as well as three-phase SPH and SPA inverters. Depending on the inverter series, a different control unit, a different connection cable set, and a different starting number of batteries are required. The ARK-XH system starts with 2 batteries, while the ARK-HV system starts with 3 batteries.

Flexible expansion: The ARK battery system from Growatt offers a high degree of flexibility thanks to its expandable configuration options, which range from 5.12 kWh to 25.6 kWh. The modular design and use of cables make installation and expansion of the system simple and straightforward. Another innovation of the ARK system is that, unlike other battery systems, it does not require a battery cabinet. Only a battery base is needed to ensure stability.
Soft start to protect the system: The soft start mechanism is a protective function used in the Growatt battery to protect the system from power surges. When starting or switching on the battery, the power supply is gradually increased to protect the system from damage that could be caused by a sudden voltage spike. This ensures smooth and safe operation of the battery system.
High cycle life: Growatt ARK battery modules are an ideal storage solution for photovoltaic systems due to their extremely high cycle life and the use of LiFePo4 cells. Regardless of whether it is a grid-connected or stand-alone system, Growatt storage offers numerous advantages over conventional lead-acid batteries and other lithium technologies.

Technical data:

• Battery type: Cobalt-free lithium iron phosphate (LiFePo4)
• Energy capacity: 2.56 kWh
• Usable capacity: 2.3 kWh
• Nominal voltage: 51.2 V
• Operating voltage range: 47.2-56.8 V
• Charging/discharging current: 25 A/0.5 C
• Protection class: IP65
• Temperature range: -10 to 50°C
• Dimensions: 650 x 260 x 180 mm
• Weight: approx. 28 kg
• Certificates: IEC62619, CE, CEC, RCM, UN38.3

BMS control unit HVC 60050-A1

The Growatt HVC-60050-A1 BMS is a central monitoring and control unit that is part of the ARK HV high-voltage battery system and supports communication with Growatt SPA and SPH inverters. This BMS can connect up to 10 battery modules, each with a capacity of 2.56 kWh. These modules can be connected in series to form a battery tower with a total capacity of up to 25.64 kWh. Control parameters include state of charge (SOC), mains voltage, current, cell voltage, cell temperature, and PCBA temperature measurement. By precisely monitoring these parameters, the BMS ensures optimal battery performance and longevity.

Technical data:

• Input/output voltage range: 90~585V
• Rated current: 25A
• Protection class: IP65
• Temperature range: -10~50°C
• Dimensions: 650 x 260 x 185 mm
• Communication: CAN
• Weight: 8.5 kg

Growatt SPH 10000TL3 BH-UP hybrid inverter

The Growatt SPH 10000TL3 BH-UP hybrid inverter is a state-of-the-art solution for solar projects. With intelligent load management, a wide battery voltage range of 100-550 V, and a VPP interface, it offers flexibility and efficiency. The inverter supports solar systems with a total output of up to 15 kW and enables an uninterruptible power supply. With these features, the SPH10kTL3 BH-UP is the ideal solution for flexible and reliable solar systems.

about the SPH 10000TL3 BH-UP inverter

• 100% three-phase asymmetric output
• Intelligent power control at phase level
• Wide battery voltage range 100-550 V
• UPS function with 10 ms switchover time
• VPP interface
• Scalable system configuration
• DC/AC Type II SPD
• DC/AC ratio up to 1.5
• Two MPP trackers (maximum power point)
• Supports lithium and lead-acid batteries
• Intelligent load control via dry contact

Hybrid inverter

Unlike conventional inverters, hybrid inverters offer the option of not only feeding the generated solar power into the power grid, but also storing it in batteries. This allows the stored solar power to be used even when the sun is not shining. Another function of hybrid inverters is to optimize a household's electricity consumption by giving priority to using the generated solar power directly in the household before feeding it into the grid. This leads to a reduction in energy costs and less dependence on expensive grid electricity.

Operating modes – Configurable depending on system requirements

Online mode: Different operating modes can be set for optimal system integration of the SPH inverter. When entering directly on the device, a priority mode can only be set for a specific period of time. When using the online platform, up to three time periods can be set for the priority mode (paid accessories are required to use this function).

• Load first:In the standard "Load first" mode, the connected loads (consumers) are supplied with energy first. As soon as the PV energy is sufficient for the load, the excess energy is fed into the battery. If the battery is fully charged or no battery is connected, the remaining energy is fed into the grid.
• Battery first:In this mode, the inverter first charges the battery to full capacity using the maximum possible solar power. If the PV power is insufficient, the grid charging function can also be activated.
• Grid first:In this mode, the PV energy generated is first fed into the grid. The switch-on and switch-off times for this mode can be set here, as well as the power rate.

Backup mode: If there is no longer any grid voltage at the device, e.g., due to a short-term power failure or blackout, the Growatt SPH automatically switches to backup mode. This ensures the supply of the AC output via the EPS LOAD connection. The required energy is supplied solely by the solar system and the battery. If the PV system also fails, the battery secures the AC supply until it is discharged. If necessary, the automatic switch to this mode can also be deactivated.

Maximum Power Point Tracking

By using Maximum Power Point Tracking (MPPT) technology, a solar system can achieve optimum yield. The MIC inverter is equipped with an MPPT that adjusts the optimum ratio of voltage and current throughout the day according to the solar radiation and the module temperature of the solar modules. With its wide MPPT voltage range, many solar modules can be connected, enabling efficient energy generation. This advantage is particularly evident when the sky is partly cloudy and the light intensity changes continuously.

Intelligent load management

The inverter's integrated smart load control enables precise and efficient control of energy consumption. The use of a potential-free contact allows electrical consumers to be controlled intelligently and prioritized. This function enables automatic detection of energy requirements and optimal use of the available energy. Smart load management ensures optimal distribution of energy and thus contributes to efficient use. With intelligent load control via the dry contact, the inverter is able to optimize the energy flow and ensure efficient operation of your solar system.

Growatt monitoring platform

By using the optional accessories from the Shine series, you can use the Growatt monitoring platform. This platform is available as a smartphone app for iOS and Android as well as in a web version. The Shine accessories must be purchased separately, but use of the platform is free of charge. Shine allows you to configure and monitor all your Growatt products, and also enables you to view your self-consumption and track trends.

The following Shine options are compatible with the SPH series:

• ShineWiFi-X
• ShineLink-X
• Shine4G-X
• ShineMaster

Technical data

• Recommended module power: up to 15 kW
• Max. DC voltage: 1000V
• Start-up voltage: 120 V
• MPPT voltage range: 120-1000 V/600 V
• Battery voltage range: 100–550 V
• Max. charging/discharging current: 25 A
• Continuous charging/discharging power: 10 kW
• AC rated power: 10 kW
• Max. apparent power: 10 kVA
• Max. AC output power: 10 kW
• Max. output current: 15.2 A
• AC rated voltage range: 230/400 V (310~476 V)
• AC mains frequency range: 50/60 Hz (45Hz-55Hz/55Hz-65Hz)
• Enclosure rating: IP65
• Maximum efficiency of 98.2%
• Dimensions: 505 x 453 x 198 mm
• Weight: 30 kg