EcoFlow 1350 W STREAM Ultra Battery (1.9 kWh) Balcony Power Station (3 solar panels)

The EcoFlow 1,500 Wp balcony solar system with STREAM Ultra 1.92 kWh is a high-performance kit for balconies, patios or private solar installations where increased solar power generation and the ability to store energy for later use are required.

The kit includes the EcoFlow STREAM Ultra battery with a capacity of 1.92 kWh, as well as three 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 1,500 Wp, making the system well-suited for daily electricity generation and faster charging of the battery during daylight hours.

STREAM Ultra acts as a smart energy storage system for the home. During the day, the system stores surplus solar energy, allowing it to be used later during periods of higher consumption. This is particularly useful in the evening, in the morning, or whenever electricity consumption does not coincide with the peak output of the solar power generation.

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 kit uses three 500 W solar modules, ensuring the system has a good reserve capacity at the PV input and remains flexible for practical connection.

The set is connected to the 230 V domestic mains supply. The mains AC output is up to 800 W, the storage unit’s AC output is up to 1,200 W, and the bypass output supports connected devices with a power rating of up to 2,300 W. This means that the stored solar energy can be used not only for basic consumption but also for individual household appliances, within the limits of the system’s capacity.

The total weight of the kit’s main components is approximately 105.0 kg, excluding cables, packaging and mounting hardware. The STREAM Ultra storage unit weighs 23.1 kg, whilst the three solar modules together weigh approximately 81.9 kg. The dimensions of the storage unit are 284 × 255 × 458 mm, whilst those of a single module are 1,960 × 1,134 × 30 mm.

As the set consists of a separate storage unit and three solar modules, the actual dimensions depend on the installation configuration. If the modules are arranged in a row without any spacing between them, the approximate area of the modules is 5880 × 1134 × 30 mm. If the modules are arranged one above the other, the approximate area of the modules is 1960 × 3402 × 30 mm. The total area of the three solar modules is approximately 6.67 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 a bifacial design. 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. STREAM Ultra supports Wi-Fi and Bluetooth, allowing the user to monitor the system’s operation, view generation and storage data, and configure usage scenarios via the EcoFlow app.

The battery 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. This makes the set practical for everyday use at home, where quiet operation, stability and protection from external influences are important.

The set includes the STREAM Ultra battery with a capacity of 1.92 kWh, 3 NIWA JW-HD108N-R2-500 solar panels (500 W each), 3 pairs of solar extension cables (5+3 m) 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.