Ecoflow launches ‘retrofit’ residential battery with PV-coupling technology

North American manufacturer Ecoflow has launched a “retrofit” residential battery solution that it claims can be easily integrated with existing rooftop PV arrays.

“Unlike conventional DC-coupled or AC-coupled battery systems, PowerOcean DC Fit uses EcoFlow’s PV-coupling technology to directly connect with existing home solar energy systems on the PV side – meaning users don’t need to install additional storage inverters,” the manufacturer said in a statement.

The battery uses lithium iron phosphate (LiFePo4) as the cathode material and is based on a self-adaptive algorithm that the manufacturer said makes the system compatible with most of the existing solar single-phase and three-phase inverters that are already in use in existing PV installations.

“Using EcoFlow’s unique PV-coupling technology, the PowerOcean DC Fit connects its batteries directly with solar panels. Users can leave the AC wiring as it is and don’t have to apply for an on-grid permit,” the company stated.

The storage system measures 680 mm x 183 mm x 479 mm and weighs 59.2 kg. It has a capacity of 5 kWh and is expandable to 15 kWh. It also features an output voltage range of 150-800 V and a maximum output current of 20 A.

The new product is IP65-rated and reportedly has a lifecycle of more than 6,000 cycles.

“Each battery pack is connected parallelly and equipped with the EcoFlow BMS (Battery Management System) to prevent one battery’s issues from affecting other packs,” the manufacturer said, noting that the new product comes with a 15-year warranty.