EcoFlow STREAM Ultra 2in1 Smart Energy Storage with Microinverter is an advanced smart energy storage system with a built-in microinverter designed to maximize the efficiency of your photovoltaic installation. Combining a 2 kWh LFP battery, intelligent energy management, and high-performance power conversion, the STREAM Ultra helps increase energy independence for your home. Quiet operation, weather-resistant construction, and wide operating temperature support make it suitable for both indoor and outdoor installations.
Compact and durable design
Despite its powerful capabilities, the EcoFlow STREAM Ultra remains compact and easy to integrate into various environments. The durable IP65-rated enclosure provides reliable protection against dust and water, allowing safe operation indoors, outdoors, on balconies, or in utility spaces. Advanced protection standards ensure stable and safe operation even in demanding conditions.
Long-lasting LFP battery technology
The system uses a lithium iron phosphate (LiFePO₄ / LFP) battery with a capacity of 2 kWh and a nominal voltage of 19.2 V. Designed for long-term use, the battery supports more than 6000 charging cycles while maintaining high efficiency and reliability. Fanless natural convection cooling ensures silent and maintenance-free operation.
Efficient solar charging with 4 MPPT inputs
EcoFlow STREAM Ultra features four independent MPPT inputs that optimize energy harvesting from photovoltaic panels. Each MPPT supports up to 500 W, allowing a total solar input power of up to 2000 W. The wide voltage range ensures compatibility with many different solar panel configurations and helps maximize solar energy utilization throughout the day.
Flexible power output and energy independence
The STREAM Ultra supports both grid-connected and standalone operation modes. It can feed energy directly into the home electrical system with up to 800 W output power or power connected devices through its AC output with up to 1200 W continuous output. Parallel connection support allows system expansion up to 2300 W for larger energy setups.
Reliable performance in demanding environments
Designed for reliable year-round operation, the EcoFlow STREAM Ultra functions in temperatures ranging from -20°C to 55°C and supports operation at altitudes up to 4000 meters above sea level. Its robust construction and wide humidity tolerance make it suitable for challenging environments and varying weather conditions.
Smart connectivity and remote management
Built-in Wi-Fi and Bluetooth connectivity allow full monitoring and management through the EcoFlow mobile application. Users can monitor energy production and consumption in real time, optimize charging schedules, and remotely control system settings for maximum efficiency and convenience.
Technical details:
General:
- Dimensions: 255 × 284 × 458 mm
- Weight: 23.1 kg
- Protection rating: IP65
- Cooling method: Natural convection (fanless)
- Installation: Indoor / outdoor
Battery:
- Capacity: 2 kWh
- Rated voltage: 19.2 V
- Battery type: LFP (LiFePO₄)
- Lifecycle: 6000+ cycles
PV Input (DC):
- Number of MPPT inputs: 4
- MPPT voltage range: 15–60 V
- Maximum PV input power: 2000 W (500 W per MPPT)
- Maximum input voltage: 60 V
- Maximum input current: 14 A
- Maximum short-circuit current: 20 A
Grid Output (AC Grid Terminal):
- Voltage / frequency: 230 V~, 50 Hz
- Rated power: 800 W
- Rated current: 3.48 A
- Maximum input current: 10 A
- Maximum input power: 2300 W
AC Output:
- Voltage / frequency: 230 V~, 50 Hz
- Maximum output power: 1200 W
- Rated output current: 5.22 A
- Maximum bypass output current: 10 A
Parallel Output:
- Maximum output power: 2300 W
- Maximum output current: 10 A
Operating Conditions:
- Operating temperature: -20°C to 55°C
- Storage temperature: -20°C to 55°C
- Relative humidity: 5%–95%
- Maximum operating altitude: 4000 m
Connectivity:
- Wi-Fi: Yes
- Bluetooth: Yes
- App control: EcoFlow application
