Growatt unveils second-generation off-grid string inverter with low-voltage disconnect protection

On small islands or in developing and rural areas where there’s limited or even no access to the grid, off-grid solar power has become an increasingly popular energy solution. Growatt has launched its second generation off-grid inverter to serve this market.

“Our R&D team has brought advanced technologies into this new generation product, making it one of the most powerful off-grid inverters in the market,” said Lisa Zhang, Growatt’s marketing director. “Combined with Growatt’s wide range of lithium batteries and monitoring solutions, the SPF 3000T HVM-G2 inverter enables customers to have access to smart, reliable and sustainable clean energy.”

The SPF 3000T HVM-G2 inverter consists of a built-in MPPT charge controller, AC charger and inverter with low-frequency transformer, allowing for surge power at three times of the rated power to support motor-type loads or inductive loads. Thanks to its optimized product design and improvements in both software and hardware, the inverter has a longer design life and comes with a five-year product warranty as standard. Growatt’s SPF 3000T HVM-G2 inverter also enables power input from multiple sources such as a generator, solar, storage battery and the grid. The owner can use electrical power from the grid and PV system together to power household loads.

The inverter can work with or without batteries, and it is compatible with mainstream lead-acid and lithium-ion batteries, including Growatt’s Lithium Iron Phosphate (LFP) batteries. Additionally, it is designed with low-voltage disconnect protection function for batteries. When battery voltage drops down, it will first disconnect non-critical loads from the system in order to extend backup time for critical loads.

The SPF 3000T HVM-G2 inverter has a high  efficiency up to 95% and a much lower energy loss with only 9-W power consumption at power-saving mode, which is 70% less than products of other brands. The inverter also has a bypass function that allows the user to bypass the normal functioning of the inverter and use power from the grid. With high solar input voltage up to 250V, it makes installation much easier and reduces BoS costs as well. The inverter can be connected in parallel for up to six units for single-phase or three-phase systems to expand power capacity to 18 kW.

News item from Growatt

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