EcoFlow STREAM Ultra X Energy Storage with Microinverter designed to work together with photovoltaic panels and help maximize the use of solar energy. The system intelligently manages energy flows: first using electricity generated by the solar panels, then energy stored in the battery, and only afterwards drawing electricity from the grid. This helps reduce grid consumption and increases energy independence.
With 4 MPPT inputs and up to 2,000 W of total PV input power, STREAM Ultra X efficiently collects solar energy even in changing weather conditions. The integrated microinverter provides up to 800 W of on-grid output, while the system can supply devices with up to 2,300 W through bypass operation.
In the set:
- EcoFlow STREAM Ultra X energy storage unit;
- photovoltaic extension cable, 2.95 m × 8;
- STREAM AC cable, 1.5 m;
- PV wrench;
- mounting bracket;
- locking bracket;
- safety instructions;
- installation manual;
- warranty card.
Up to 2,300 W of power
EcoFlow STREAM Ultra X can supply devices with power requirements of up to 2,300 W. A single unit can combine solar energy with grid power to cover higher consumption, while connecting two units in parallel allows up to 2,300 W of output power from solar energy, minimizing reliance on the grid.
This makes the system suitable for everyday use with energy-intensive appliances and for providing backup power when needed.
Expandable up to 23 kWh
The built-in battery provides 3.84 kWh of storage capacity, giving you an energy reserve for use after sunset or during power outages.
The STREAM ecosystem can be expanded by connecting up to six units, providing a total storage capacity of up to 23 kWh. This allows the system to grow with your energy requirements — from a compact backup solution to a larger home energy storage system.
4 MPPT inputs and up to 2,000 W of solar input
STREAM Ultra X is equipped with four independent MPPT inputs, each supporting up to 500 W, for a combined maximum PV input of 2,000 W.
Advanced low-light operation technology allows the system to continue collecting solar energy even when sunlight is limited, such as during cloudy weather or early in the morning. More solar energy generated during the day means less electricity drawn from the grid.
Smart solar energy distribution throughout your home
EcoFlow STREAM Ultra X allows you to create a decentralized home energy system. Multiple units can be installed in different locations and connected to outlets near photovoltaic panels or energy-intensive appliances.
The STREAM ecosystem automatically connects the modules and intelligently distributes available power where it is needed most — for example, in the kitchen, laundry room or living room — without complicated manual configuration.
Intelligent energy management
Using the EcoFlow app and OASIS, you can monitor energy generation, consumption and storage in real time. You can set priorities, schedules and automation scenarios according to your needs.
AI Mode can analyze weather forecasts, dynamic electricity tariffs and your consumption profile. It can automatically charge the battery when electricity prices are lower and discharge it when energy is more expensive.
You can also create custom automation scenarios, for example, charging an electric vehicle when photovoltaic production is at its highest.
Some EcoFlow app functions may require a Premium subscription.
Smart home integration
STREAM Ultra X works with EcoFlow smart meters and smart plugs and can communicate even when offline. The system automatically adjusts the amount of power supplied to the home network, helping to minimize unnecessary energy consumption.
Compatibility with popular smart-home protocols and platforms, including Shelly, Matter and Tibber, allows you to integrate the energy storage into your existing smart-home ecosystem.
Long service life and advanced protection
The system uses LFP battery cells designed for approximately 6,000 charging cycles while retaining 70% of the original capacity. This can provide many years of reliable operation.
A multi-level protection system helps protect the battery and electronics against overload, overheating and other potentially dangerous conditions. The system can also rapidly reduce voltage in less than 0.7 seconds, increasing installation safety.
Designed for outdoor use
With an IP65 protection rating, EcoFlow STREAM Ultra X is resistant to dust and water jets, allowing installation both indoors and outdoors.
The integrated battery heating function enables charging at temperatures below 5°C, while the operating temperature range extends from -20°C to +55°C. This makes the system suitable for year-round operation in changing weather conditions.
Quiet operation
With a noise level of less than 30 dB, STREAM Ultra X operates quietly enough for use in everyday living spaces. The compact design allows it to be installed in a utility room, living room or other suitable area.
The housing is made using materials designed with a reduced carbon footprint in mind. Separately available interchangeable front panels in natural wood and elegant black allow the unit to better match your interior.
Quick and convenient installation
EcoFlow STREAM Ultra X is designed for straightforward plug-and-play installation. The set includes the necessary photovoltaic extension cables, AC cable and mounting components.
Its compact dimensions of 420 × 294 × 460 mm make it relatively easy to integrate into a home energy system despite its substantial 3.84 kWh battery capacity.
Description::
- 3.84 kWh battery capacity;
- built-in microinverter;
- up to 2,000 W total solar input;
- 4 MPPT inputs;
- up to 500 W per MPPT channel;
- up to 800 W on-grid output power;
- up to 1,200 W off-grid output power;
- up to 2,300 W bypass output power;
- expandable up to 23 kWh with up to 6 units;
- LFP battery technology;
- approximately 6,000 cycles / 70% SOH;
- low-light solar energy harvesting;
- intelligent energy management with EcoFlow app and OASIS;
- AI-based charging and discharging optimization;
- smart-home integration;
- compatibility with Shelly, Matter and Tibber;
- IP65 protection;
- battery heating function;
- operating temperature from -20°C to +55°C;
- quiet operation below 30 dB;
- Wi-Fi and Bluetooth monitoring;
- plug-and-play installation.
Technical details:
- Model: EFSTREAMULTRAX800W
- Battery capacity: 3.84 kWh
- Battery type: 200 Ah lithium-ion / LFP
- Battery life: 6,000 cycles / 70% SOH
- Maximum charge/discharge current: 80 A
- Maximum charging power: ≥1,500 W
- Maximum discharge power: 1,200 W
Photovoltaic parameters:
- Number of MPPT inputs: 4
- Maximum input power per channel: 500 W
- Maximum PV input power: 2,000 W
- Maximum PV input voltage: 60 V DC
- MPPT voltage range: 15–60 V DC
- MPPT conversion efficiency: 96%
- MPPT tracking efficiency: 99.8%
On-grid parameters:
- On-grid output power: 800 W
- Maximum bypass input current: 10 A
- Rated voltage: 220/230/240 V AC
- Voltage range: 180–270 V AC
- Frequency range: 45–55 Hz
Off-grid parameters:
- Nominal apparent power: 1,200 VA
- Maximum apparent power: 1,200 VA
- Nominal output current: 5.22 A
- Maximum output current: 5.22 A
- Nominal output voltage: 230 V AC
- Nominal output frequency: 50/60 Hz
- Output frequency range: 45–55 Hz
Bypass parameters:
- Maximum bypass output power: 2,300 W / 10 A
General parameters:
- Maximum efficiency: 93%
- Operating temperature: -20°C to +55°C
- Storage temperature: -20°C to +55°C
- Battery heating: activates when charging below 5°C
- Operating humidity: 5–95%
- Maximum altitude: 4,000 m
- Monitoring: Wi-Fi / Bluetooth
- Noise level: <30 dB
- Standby power consumption: <5 W
- Protection rating: IP65
- Dimensions: 420 × 294 × 460 mm
- Weight: 38.8 kg
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