The Growatt ARK HV 17.9 kWh A2 battery storage system is the latest generation of high-voltage storage for Growatt hybrid inverters of the SPH series and Growatt battery inverters of the SPA series. Each system consists of 2 to 10 ARK HV 2.56 storage modules, which are connected in series and assembled into a tower with a usable total capacity ranging from 4.6 kWh to 23.04 kWh.
This particular version – the Growatt ARK HV 17.9 kWh A2 – includes 7 ARK HV storage modules, each with 2.56 kWh, resulting in a total capacity of 17.9 kWh. The system is divided into two connected towers for improved stability. Storage systems can be expanded with additional battery modules within three months after commissioning. For this reason, we generally recommend choosing a larger storage system, as this battery can also be charged via AC power — an attractive feature for winter usage in combination with a dynamic electricity tariff. To determine your ideal storage size for 24-hour winter coverage, multiply your highest daily power consumption by 1.1.
One of the key benefits is the use of cobalt-free lithium iron phosphate (LFP) batteries, which are especially advantageous in terms of safety and lifespan. These batteries are extremely safe and offer superior charge and discharge efficiency.
We recommend floor installation. For storage capacities from 17.92 kWh (7 battery modules) and up, we advise splitting the system into two towers.
Product Advantages
Usable total capacity of 17.9 kWh consisting of 7 battery modules
The new A2 generation BMS features a sleek touch display and improved energy efficiency
Powerful emergency power functionality
Maximum safety, lifespan, and performance with cobalt-free lithium iron phosphate (LFP) batteries
Easy installation thanks to modular design
Wall or floor installation
10-year manufacturer warranty
Scope of Delivery
7x Growatt ARK HV 2.56 A2 storage modules
1x Growatt HVC 60050-C2 BMS (A2 generation) including cable to inverter
2x Growatt AKR 2.5H-A1 stands
1x Growatt ARK 2.5 Series Cable – for connecting the two towers