EcoFlow 2000 W STREAM Ultra X Battery (3.8 kWh) Balcony Power Station (4 solar panels)

The EcoFlow 2,000 Wp balcony solar system with STREAM Ultra X 3.84 kWh is the set with the highest solar output in this configuration and has been designed for those who wish to achieve high daily energy generation, store surplus energy and use their own electricity when it is actually needed in the home.

The kit comprises the EcoFlow STREAM Ultra X battery with a capacity of 3.84 kWh, as well as four NIWA JW-HD108N-R2-500 solar panels from Jolywood, each with an output of 500 W. The total power output of the solar panels is 2,000 Wp, making the system well-suited for active daily electricity generation, faster charging of the storage unit and increasing self-consumption.

The STREAM Ultra X acts as a large energy storage system for domestic use. During daylight hours, it stores surplus electricity, allowing it to be used later in the morning, in the evening or during peak loads. This helps to reduce the amount of energy fed into the grid and enables more of it to be used directly in the home.

The storage unit is equipped with 4 MPPT trackers and supports a PV input of up to 2,000 W, i.e. up to 500 W per channel. This configuration is well suited to four 500 W solar panels and enables efficient operation with a large solar installation.

The set is connected to the 230 V domestic mains supply. The mains AC output is up to 800 W, the battery’s AC output is up to 1,200 W, and the bypass output supports connected appliances with a power rating of up to 2,300 W. This makes the system suitable not only for basic consumption but also for individual household appliances within the limits of the battery’s capacity.

The total weight of the kit’s main components is approximately 148.0 kg, excluding cables, packaging and mounting hardware. The STREAM Ultra X battery weighs 38.8 kg, whilst the four solar modules together weigh approximately 109.2 kg. The dimensions of the storage unit are 420 × 294 × 460 mm, whilst those of a single module are 1,960 × 1,134 × 30 mm.

The actual dimensions depend on the mounting configuration. If four modules are arranged in a row without mounting spacers, the approximate area of the modules is 7840 × 1134 × 30 mm. When the modules are arranged in a 2×2 configuration, the approximate area of the modules is 3920 × 2268 × 30 mm. The total area of the four solar modules is approximately 8.89 m².

The NIWA JW-HD108N-R2-500 solar modules feature a full-black design, a glass-on-glass construction, N-type J-TOPCon technology and are bifacial. Thanks to their bifacial design, the modules can achieve additional yield gains from reflected light, provided they are installed on a suitable surface.

Control and monitoring are possible via the EcoFlow app. The STREAM Ultra X supports Wi-Fi and Bluetooth; a connection to Wi-Fi and the EcoFlow app is required to access the full range of functions of the STREAM series. In the app, you can monitor the system status, view the operating history and configure application scenarios.

The device has an IP65 protection rating, an operating temperature range of -20 to +55 °C, an integrated battery heating system for charging at low temperatures, and a noise level of less than 30 dB. The battery is rated for 6,000 charge cycles to 70 per cent capacity, and the STREAM Ultra X comes with a 10-year warranty.

The scope of delivery includes the STREAM Ultra X storage unit with a capacity of 3.84 kWh, 4 NIWA JW-HD108N-R2-500 solar modules (500 W each), 4 pairs of 5+3 m solar extension cables with a total length of 8 m, and a 1.5 m AC cable for connection to a 230 V socket. If required, the system can be supplemented with longer solar cables or flat cables to allow for easy routing through window or door frames.