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Description
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.
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.
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.
Zero Solar Energy Waste – 1.92–11.52kWh Scalable Capacity
EcoFlow STREAM Ultra supports flexible solar storage expansion from 1.92kWh up to 11.52kWh. You can effortlessly expand the storage capacity by simply plugging multiple Ultra units into an AC wall outlet ( NEMA 5-15/NEMA 5-20) in your home. This straightforward DIY expansion method allows you to store surplus solar power for both daytime and nighttime household use. Moreover, you can integrate it with EcoFlow DELTA Series batteries*. With the EcoFlow STREAM Ultra, you have the flexibility to customize your solar storage system according to your energy needs.
*The compatibility of DELTA Series batteries and STREAM Ultra will be available soon.
Plug & Play⁶: Start Generating Power in Minutes
A flexible, drill-free setup makes it easy to place and move—ideal for renters.
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.
EcoFlow App – Now Smarter with Eco-AI
Manage energy more efficiently and cut your electricity bills.
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.
24/7 AI Energy Assistant
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.
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
4-MPPT Design
Flexible panel installation anywhere.
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.
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.
Features
Specifications
Manufacturer: EcoFlow
Product Line: All in One Solutionion
Model ID:
Certifications and Safety Ratings: FCC, UL
Specs:
Capacity: 1.92kWh
Rated Voltage: 19.2V⎓
Max.Charging Power: 1050W
Max.Discharging Power: 1200W
Cell Chemistry & Cycle Life¹: LFP, 6000 cycles to 70% capacity
MPPT（PV Input Power & Voltage): 4 MPPT, 2000W (500W × 4), 15V-60V⎓
Max. Input Voltage: 60V⎓
Max. Input Current: 4 × 14A
Max. Input Short Circuit Current: 4 × 20A
Rated AC Output Power (Grid Terminal）: 800W
Rated Voltage and Frequency (Grid Terminal）: 120V~, 60Hz
Rated Output Current (Grid Terminal）: 6.67A
Max. Input (Grid Terminal）: 1200W（10A）
Battery Self-Heating: 700Low-Temperature Charging Activation (≤5°C)
Ingress Protection Rating: NEMA 4
Operating Temperature²: –20℃ to 55℃
Dimensions: 255 × 284 × 458 mm / 10.0 × 11.2 × 18.0 in
Communication: Wi-Fi, Bluetooth
Warranty: 10-Year
Acoustic Noise: ＜30 dB
Discharge Temperature: –20°C-50°C (–4°F-122°F)
Net. Weight: 23.1±0.5kg
Build in Feature: Output Overcurrent Protection, Output Overvoltage Protection, Anti-islanding Protection
Footnote:
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.
Available now at SolarTown – trusted distributor.
INFO & GUIDE
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