EcoFlow STREAM Ultra

Main features

Plug-and-Play Installation: Just plug the STREAM Ultra into a wall outlet and connect solar input—no heavy wiring or dedicated off-grid inverter required.

Scalable Capacity: Start with 1.92 kWh and expand up to 11.52 kWh by adding up to six units in a modular fashion.

High Solar Input Flexibility: Four MPPT inputs (each up to 500 W) allow up to 2000 W of PV input, letting you maximise solar generation even under varied light conditions.

Smart Energy Management: Using the EcoFlow app and optional smart meter integration, the system monitors household load, adapts to time-of-use tariffs and weather forecasts to optimise when to charge, discharge or feed back to the grid.

Direct Appliance Support: The unit includes built-in AC outlets, enabling you to power devices directly from stored energy. When paired with a second unit, system output can be boosted to support heavier loads.

Minimal Solar Waste: The system is engineered to capture surplus solar energy, store it and shift usage to times when grid electricity is more expensive—helping to increase self-consumption and reduce waste.

Indoor/Outdoor Flexibility: With IP-rated design and broad operating temperature range, the unit can be installed in a variety of locations in the home.

Description

The EcoFlow STREAM Ultra is a home solar-battery system designed for ease of installation and flexible scaling. It allows you to plug into a standard wall outlet and integrate surplus solar energy into home storage—without the need for a full professional installation. The system supports solar panel input (via 4 independent MPPT channels) and is capable of stacking multiple units to expand capacity. With its smart app controls, real-time monitoring and AI-optimised charging/discharging, the STREAM Ultra gives homeowners a simpler path to increased self-sufficiency and lower electricity bills. It works with or without existing solar panels, enabling users to start small and expand as needed.

Technical specifications

Here’s a detailed table summarising the key technical specifications of the EcoFlow STREAM Ultra:

Specification	Value
Battery Capacity	1.92 kWh (per unit)
Scalable Capacity	Up to 11.52 kWh (via up to six units)
Battery Chemistry & Cycle Life	LFP (Lithium Iron Phosphate); approx. 6000 cycles to 70% capacity
Rated Voltage	19.2 V (for battery module)
Maximum PV Input Power	2000 W (4 MPPT channels × 500 W each)
PV Input Voltage Range	15 V – 60 V DC
Maximum PV Input Short-Circuit Current	4 × 20 A
Maximum Charging Power	Around 1050 W (AC mode)
Maximum Discharging Power	Around 1200 W
Rated AC Output Power (Grid Terminal)	800 W standalone
Maximum Output Power With Two Units	Up to 2300 W (when paired)
Operating Temperature Range	–20 °C to +55 °C
Weight	Approx. 23.1 kg (varies by region)
Dimensions	Approx. 284 mm × 255 mm × 458 mm (varies by region)
Sound Level	< 30 dB
Protection Rating	IP65 (weather/dust resistance)
Connectivity	WiFi / Bluetooth for EcoFlow app monitoring
Warranty	10-Year standard