Max. 1200W

On-Grid AC Output¹

Saves up to $1027

on Electricity Bills

Plug-and-Play

Installation

10-Year Warranty

All-in-One

Design

NEMA 4

Water Resistant

AI-Powered

Smart Energy System

LFP Battery:
6000 Cycles

2000W

Solar Input

Choose Your Plug-and-Play Home Solar System with Storage

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First Choice

Assuming 2000W full solar input

Save $642 on Bills Annually
36.7%
self-consumption rate
4,015kWh
generated per year with this system
4,002 kg
reduces CO₂ emissions
0
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2kW STREAM Ultra Basic Set

Assuming 1600W solar input

Save $513 on Bills Annually
29%
self-consumption rate
3,212kWh
generated per year with this system
3,202 kg
reduces CO₂ emissions
0
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3.2kW STREAM Advanced Set

Assuming 3200W full solar input

Save $1,027 on Bills Annually
50%
self-consumption rate
6,424kWh
generated per year with this system
6,404 kg
reduces CO₂ emissions
0
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EcoFlow STREAM Ultra Systems

EcoFlow 400W Rigid Solar Panel
EcoFlow STREAM Ultra

How does it work to utilize solar energy?

As the morning sun rises, EcoFlow STREAM Ultra, equipped with a built-in grid-tied microinverter, immediately captures solar energy for your home and automatically stores any surplus. The stored power runs your appliances at night or during short-term power outages. Generating up to 6424kWh² annually, it meets up to 50% of household needs³ while cutting electricity bills by up to $1027⁴.

6424kWh
Generates 6424kWh of solar energy annually.
$1027
Save up to ＄1027 on annual electricity bills.
50%
Up to 50% reduction in annual energy consumption.

EcoFlow STREAM Ultra Systems

EcoFlow 400W Rigid Solar Panel
EcoFlow STREAM Ultra

How does it work to utilize solar energy?

As the morning sun rises, EcoFlow STREAM Ultra, equipped with a built-in grid-tied microinverter, immediately captures solar energy for your home and automatically stores any surplus. The stored power runs your appliances at night or during short-term power outages. Generating up to 6424kWh² annually, it meets up to 50% of household needs³ while cutting electricity bills by up to $1027⁴.

  • 6424kWh
    Generates 6424kWh of solar energy annually.
  • $1027
    Save up to ＄1027 on annual electricity bills.
  • 50%
    Up to 50% reduction in annual energy consumption.

Dual-Mode 3,200W Solar Input – Capture More Sunlight for Savings

EcoFlow STREAM Ultra's 4-MPPT design supports 2,000W of solar input, plus an additional 1,200W via the EcoFlow STREAM Microinverter connected to the solar battery—maximizing power generation from every sunlit area.

3200W

Dual-Mode 3,200W Solar Input – Capture More Sunlight for Savings

EcoFlow STREAM Ultra's 4-MPPT design supports 2,000W of solar input, plus an additional 1,200W via the EcoFlow STREAM Microinverter connected to the solar battery—maximizing power generation from every sunlit area.

3200W

Max. 1,200W Grid-Tied AC Output⁵ – Power More of Your Home with Solar

EcoFlow STREAM Ultra combines a hybrid inverter and battery into a compact unit that plugs directly into AC sockets (NEMA 5-15/NEMA 5-20) to deliver solar power. Dual AC outlets can power two appliances simultaneously, automatically boosting output to 1,200W for essential household devices. When the grid is active and STREAM Ultra is connected to your home, your AC circuits run smoothly by fully optimizing solar energy. In an outage, backup power is reserved solely for essential appliances.

Essential appliances

  • Frige

  • TV

  • Wifi

  • Audio

  • Dryer

  • Washing machine

Other heavy-duty appliances*

  • AC

  • Microwave

  • Hair Dryer

* Must be connected to household AC circuits while the grid is active.

1200W

1.92–11.52kWh Scalable Capacity – 0 Solar Energy Waste

EcoFlow STREAM Ultra supports flexible DIY solar storage expansion from 1.92kWh up to 11.52kWh. Easily pair two units to double capacity, or integrate with EcoFlow DELTA Series batteries for even greater storage.
11.52kWh
1.92kWh

Plug & Play⁶: Start Generating Power in Minutes

No Drilling Required
A flexible, drill-free setup makes it easy to place and move—ideal for renters.
Easy DIY Setup
Quick plug-and-play installation—no electrician needed.

SmartLoad Guardian: Built-In Safety Tech

Our AI-driven system monitors loads in real time, dynamically adjusting power flow to ensure all devices operate safely within certified limits.

;
All-in-One Engineering Excellence
Compact Solar Design: Save Space with a Smaller Footprint
Engineered with a 50% smaller footprint than conventional systems, our ultra-sleek unit blends seamlessly into your living space with concealed cable routing and flush-mount architecture. Tuck it behind curtains, nestle it beside planters, or wall-mount it as functional art—the anodized aluminium finish complements any décor.

LFP Battery

Retain 70% of capacity after 6,000 deep cycles—lasting three times longer than conventional batteries.

It's running with whisper-quiet.

STREAM Series batteries feature a fanless thermal design. Heat generated during operation is efficiently dissipated through the integrated heat dissipation module, ensuring whisper-quiet operation below 30 dB.
Reliable winter performance.
The intelligent temperature management system automatically activates heating when the battery drops below 0°C, operates smoothly even at -20°C.
NEMA 4 Water-Resistant Rating
With NEMA 4 rating, the energy storage unit is resistant to rain and dust—ideal for outdoor use.
AI
EcoFlow App – Now Smarter with Eco-AI
Manage energy more efficiently and cut your electricity bills.

AI-TOU (Dynamic Electricity Tariff): Every Cent Counts

The app cross-references electricity tariffs with your usage patterns and hourly weather forecasts to create the optimal bill-saving strategy. It automatically charges your battery during low-rate periods and switches to stored power during peak times. Manual tariff input is also supported⁷.

AI Power Prediction – Always One Step Ahead

By analyzing hyper-local sunlight forecasts and aligning them with your appliance usage patterns, the app generates a forward-looking power plan—suggesting which appliances to use and when. It's proactive energy budgeting: your home automatically adapts to tomorrow's conditions, reducing grid dependence⁸.

Adaptive Energy Architect, Powered by AI

The system learns and evolves by profiling your energy footprint, delivering greater annual savings through optimized tariff plans and scalable storage. Think of it as a future-proof power ecosystem tailored to your home's rhythm—from solar panels to battery units and beyond⁸.

24/7 AI Energy Assistant – Ask Anything, Anytime

The app simplifies complex energy data into clear, actionable advice—offering an energy overview and detailed report with a single tap. Control devices using natural commands and get instant support whenever issues arise.

Energy Insights

Energy Report

Instant Support

One-Step Portal for Total Control
Status Overview
Monitor all energy data in real time.
Savings Calendar
Track your daily and weekly savings.
Remote Control
Manage connected devices anytime, anywhere.

Solar Energy Indoors

EcoFlow STREAM Ultra uses AC coupling technology, allowing flexible indoor placement. Simply plug in to store solar energy in any room—directly powering appliances like fridges, washing machines, or coffee makers without the mess of extension cables.

Achieve Nearly 50% Solar-Powered Living² – Minimize Energy Bills with AI

Multiple EcoFlow STREAM Ultra units form an AI-powered home energy network. Surplus solar energy automatically transfers between batteries across different rooms, maximizing solar utilization, boosting self-sufficiency, and reducing electricity costs.
DIY Solar System

One-Step Plug-and-Play Home Solar System

Set up easily in backyards, gardens, rooftops, and more—transform any space into a solar power station.

Compatible with EcoFlow STREAM Microinverter

Unlike typical DC systems, EcoFlow STREAM Ultra is an AC-coupled solution that works seamlessly with the EcoFlow STREAM Microinverter—just plug in and save.

Learn more >

4-MPPT Design

Flexible panel installation anywhere.

T&C
1. When using 1 × EcoFlow STREAM Ultra + 1 × EcoFlow STREAM Microinverter together, the system provides a max. 1200W on-grid AC output. When combining 2–6 × EcoFlow STREAM Ultra (with or without 1 × EcoFlow STREAM Microinverter), the system also delivers a max. 1200W on-grid AC output. A single EcoFlow STREAM Ultra (standalone) has a max. 800W On-Grid AC output. 2. Projected power generation values are based on the use of 1 × EcoFlow STREAM Ultra and 1 × EcoFlow STREAM Microinverter under simulated conditions. Calculations assume 5.5 hours of sunlight per day, using the U.S. as an example, factoring in weather variables such as rain throughout the year. 3. The self-consumption rate is calculated using generation estimates from 1 × EcoFlow STREAM Ultra and 1 × EcoFlow STREAM Microinverter, aligned with average annual U.S. household electricity usage. Actual results may vary based on location, climate, and system setup. 4. The estimated savings are based on projected generation from 1 × EcoFlow STREAM Ultra and 1 × EcoFlow STREAM Microinverter, combined with average U.S. electricity rates. Actual savings may differ due to utility pricing, user habits, and environmental conditions. 5. To ensure electricity stability and safety, please familiarize yourself with your local legal requirements for installation, usage, and electrical grid connection of the Product, and consult with local authorities, utilities, and qualified electrical professionals. 6. Due to restrictions under the H.B. 340 Solar Power Amendments, this product is only available for plug-and-play installation within the state of Utah. 7. Currently, only manual input of electricity prices is supported for U.S. specifications. Certain AI features in the EcoFlow app require a premium subscription. Please refer to the EcoFlow app for details on subscription plans and feature availability. 8. Certain AI features in the EcoFlow app require a premium subscription. Please refer to the EcoFlow app for details on subscription plans and feature availability. 9. Due to restrictions under the H.B. 340 Solar Power Amendments, this product is only available for sale and plug-and-play installation in Utah. Please note that you are solely responsible for ensuring your installation and use of the product strictly comply with applicable laws and regulations regarding where the product is intended to be installed/used. 10. Visuals in some materials may differ from the actual U.S.-specification product design and are for illustrative purposes only. For accurate details, refer to the official product specifications or contact EcoFlow Support.