EcoFlow STREAM AC 5000

EcoFlow STREAM AC 5000 – Retrofittable AC Storage (5024 Wh)

The EcoFlow STREAM AC 5000 is an AC-coupled AC energy storage system with a 5024 Wh capacity that can be integrated into existing PV systems or balcony power plants via a standard outlet – without modification or a new inverter. If you want to retrofit a solar storage system, this is the central idea of this system: plug it in, set it up via the app, store excess energy, and use it again in the evening. In combination with a smart meter, the system detects generation and consumption in real time and automatically charges or discharges with up to 3000 W.

The typical problem with existing systems – and why AC coupling is so convenient

Many households generate solar power at noon but feed a large part of it into the grid – and buy electricity again in the evening. Classic home storage systems solve this, but are often associated with effort for existing systems: modifications, new components, inverter replacement. The STREAM AC 5000 instead relies on AC coupling: It completely omits DC inputs and uses the home network as an interface. This leaves the inverters, solar panels, and wiring untouched.

5024 Wh capacity: Secure daytime excess for the evening

With 5024 Wh, the STREAM AC 5000 stores enough energy to specifically shift the solar excess to the time when you really need it – in the evening, at night, or during increased consumption. This turns “feeding in at noon” into significantly better self-consumption.

Plug & Play in a few minutes

The STREAM AC 5000 is connected to the outlet via a Schuko cable, and the EcoFlow App guides you through the setup. For basic operation up to 800 W, no professional is required. For power over 800 W, a dedicated circuit is recommended.

Zero export via smart meter – even without internet

In combination with the EcoFlow Smart Meter, the system receives real-time data on generation, consumption, and grid feed-in. The control runs completely locally: Even without an active internet connection, the regulation of zero export remains intact – and your consumption data stays within the home network.

LiFePO4: long-lasting, safe, made for everyday use

Inside, lithium iron phosphate cells (LiFePO4) are at work. The storage system is designed for up to 10,000 charge cycles and comes with a 10-year manufacturer warranty – a clear focus on longevity in daily operation.

Emergency power with UPS function

In the event of a power outage, the integrated off-grid output provides a continuous supply of up to 3000 W – e.g. for the refrigerator, router, and other household appliances. The UPS function switches in under 20 ms, so that connected devices continue to run without interruption.

System grows with you: STREAM ecosystem up to 90 kWh

If your needs change, the system can be expanded modularly within the STREAM ecosystem – up to a total storage capacity of 90 kWh.

Your benefits at a glance

• 5,024 Wh AC storage system for retrofitting
• AC coupling: Integration via standard outlet, without inverter replacement
• Up to 3000 W charging/discharging (controlled by smart meter)
• Plug & Play: Setup via app, commissioning in a few minutes
• Zero export controllable locally – even without an internet connection
• LiFePO4 with up to 10,000 cycles and 10-year warranty
• Emergency power/UPS: Switching time under 20 ms, off-grid up to 3000 W
• Modularly expandable in the STREAM system up to 90 kWh

If you want to supplement your existing PV system or balcony power plant with a powerful AC storage system without modification, the EcoFlow STREAM AC 5000 is a particularly straightforward and future-proof solution.