EcoFlow STREAM Ultra Solar Battery 1.92 kWh – Micro Inverter with Integrated Storage

Some products define a new standard. The EcoFlow STREAM Ultra is one of them. As the world's first intelligent balcony power station, it combines a micro inverter and 1.92 kWh of storage in a single device – with four independent MPPT solar inputs, AI energy management, and the ability to keep running even during a power outage. No separate inverter, no separate battery. Just this one device.

4 MPPT inputs – up to 2000 W solar, maximum flexibility

Four independent MPPT trackers allow the connection of up to four solar panels with a combined output of 2000 W. Because each input has its own tracker, panels with different orientations, tilts, or sizes can be combined – without a weaker panel pulling down the performance of the others. Ideal for balconies with complex configurations or installations where panels are mounted on multiple facades.

Three modes. One device.

The STREAM Ultra masters three operating modes, switching automatically depending on the situation: in grid-connected mode, it feeds up to 600 W of solar power directly into the home network. In off-grid mode, it powers connected devices with up to 1200 W from its own storage. And in bypass mode, it channels up to 2300 W from the grid as needed – so even high-draw appliances like washing machines or ovens can continue to operate. In the event of a power outage, the STREAM Ultra takes over backup power supply seamlessly.

AI energy management – thinks ahead, saves automatically

The integrated Eco-AI continuously analyses the household's energy consumption and optimises in real time when to store, when to feed in, and when to draw from the grid. The AI-TOU (Time of Use) mode also factors in electricity tariff rates and automatically shifts charge and discharge cycles to the most cost-effective time windows. All of this runs in the background – visible and controllable via the free EcoFlow app.

Plug and Play – installed without an electrician

Despite the system's power and complexity, installation stays simple: the STREAM Ultra is plugged into a standard wall socket via the included AC cable, and the solar panels are connected via the four MC4 inputs – that's it. No electrician, no building permit on the device side, no waiting time. Commissioning and configuration are handled entirely via the EcoFlow app.

Silent, robust, long-lasting

With a noise level of under 30 dB, the STREAM Ultra operates almost silently – quieter than a calm office conversation. The IP65 protection rating makes it suitable for outdoor use, and the LFP cell chemistry guarantees 6,000 charge cycles at a minimum of 70 % remaining capacity – equivalent to over 16 years of daily use.

Note on regulatory requirements

Please clarify any permit or notification requirements with your local grid operator before installation. Legal requirements may vary by municipality and canton.

Technical specifications

• Max. PV input power: 2000 W (4x 500 W)
• MPPT trackers: 4
• Max. AC charging input: 1050 W
• AC output power, grid-connected: 600 W
• AC output power, off-grid: 1200 W (bypass up to 2300 W)
• Max. supported device power: 2300 W
• Capacity: 1.92 kWh (1920 Wh)
• Off-grid use: yes
• Service life: 6,000 cycles (LFP cells, 70 % residual capacity)
• Operating temperature: –20 °C to +55 °C
• Protection rating: IP65
• Connectivity: Wi-Fi / Bluetooth
• Noise level: <30 dB
• Dimensions: 284 × 255 × 458 mm
• Weight: 23.1 kg

Scope of delivery

• 1x EcoFlow STREAM Ultra
• 1x AC cable, 1.5 m (CH-T12)
• 4x solar panel extension cables, 2.95 m
• 1x PV spanner
• 1x mounting bracket
• 1x locking bracket
• Installation guide and safety instructions
• Warranty card

Swiss Warranty – Local. Professional. Sustainable.

As an authorised EcoFlow partner, we provide the comprehensive Swiss Warranty. In the event of a warranty claim, your device will be inspected and repaired in Switzerland at the authorised EcoFlow service centre – no lengthy transport routes abroad.