EcoFlow has unveiled the latest iteration of its home energy storage system, known as the Stream 2, ahead of the Intersolar trade fair. This new version represents a significant evolution from its predecessor, which was designed to exchange energy within different parts of a household. The updated Stream 2 systems now function more similarly to competitors' models, allowing multiple units to be stacked together in locations such as garages or outside homes. These units can be connected via software into a unified storage network, offering greater flexibility and scalability for users looking to manage their energy consumption more effectively.
The Stream Gateway serves as a central hub that integrates up to three Stream head units into one cohesive system. When combined, this setup achieves a maximum capacity of 45 kilowatt-hours (kWh) and can deliver power output of up to 9 kilowatts (kW). Additionally, two such systems can be linked together using the EcoFlow app, potentially reaching a total capacity of 90 kWh. This modular approach allows homeowners to expand their energy storage solutions incrementally based on their specific needs.
In terms of design, the second-generation Stream components have moved away from rounded plastic enclosures to angular aluminum housings. While these units maintain a slim footprint similar to that of a vinyl record cover, they stand approximately 50 centimeters tall. At launch, three new Stream devices will be available: the Stream 5000 with an integrated inverter, an AC variant without an inverter, and an expansion battery. Each of these storage units comes with a capacity of 5024 watt-hours, aligning with the current market trend towards larger battery capacities.
The Stream 5000 model features four Maximum Power Point Tracking (MPPT) strings, each capable of supporting up to 1250 watts from photovoltaic panels. This configuration allows for the operation of up to 12 solar panels. Both versions of the unit—those with and without a PV connection—are compatible with a grid connection that supports charging and discharging up to 3000 watts. They also include an off-grid connection for emergency power supply, capable of delivering up to 3600 watts. All components meet the IP65 certification standard, making them suitable for outdoor use.
A new addition to the product lineup is the Stream Gateway, which performs a similar role to the Power Dock offered by Anker Solix. Through this gateway, up to three Stream 5000 head units can be connected, enabling a maximum capacity of 45 kWh. Two such installations can be further linked via the EcoFlow app, achieving a total capacity of 90 kWh. The gateway also facilitates the operation of a wallbox, transforming garage installations into charging stations for electric vehicles. This feature allows the Stream 2 system to scale from a basic balcony power solution with an 800-watt feed-in capability up to a fully developed photovoltaic installation with a maximum output of 18 kWh through the wallbox.
The official sales launch for the Stream 5000 with an integrated inverter is scheduled for September 15, with a suggested retail price of 1600 euros. Starting mid-August, pre-orders will be available at an early-bird price of 1300 euros. EcoFlow has not yet disclosed pricing information for the AC variant and the expansion battery. As the demand for renewable energy solutions continues to grow, the introduction of the Stream 2 marks a strategic move by EcoFlow to enhance its position in the expanding home energy storage market.
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