Max. 1200W
On-Grid AC Output¹
Saves up to $1027
on Electricity Bills
UL1741-Certified & IEEE1547-Certified
Plug-and-Play
Installation
10-Year Warranty
All-in-One
Design
NEMA 4
Water Resistant
Compatible with
Smart Meter
LFP Battery:
6000 Cycles
2000W
Solar Input
Choose Your Plug-and-Play Home Solar System with Storage
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How Does the STREAM Ultra System Save You Money Every Day*?
EcoFlow STREAM Ultra is an all-in-one solar battery with a built-in grid-tied microinverter, fully compatible with solar panels and the Shelly Smart Meter. From sunrise, the system captures solar energy and delivers it directly to your home through its grid-tied output. Surplus energy is automatically stored for use during peak hours, at night, or in the event of a short-term outage. With real-time monitoring of total household consumption via the smart meter, STREAM Ultra intelligently manages solar generation and battery storage to maximize your solar self-consumption. Generating up to 6,424kWh² annually, the system can cover up to 50% of your household electricity needs³, saving you up to $1,027⁴ per year on energy bills.
6,424kWh
Generates 6,424kWh of solar energy annually.
$1,027
Save up to $1,027 on annual electricity bills.
50%
Cover up to 50% of your annual energy consumption.
Smart Meter
Smart Meter
With millisecond-level monitoring and communication, the system proactively prevents backfeed and optimizes for self-consumption.
STREAM Ultra
STREAM Ultra – Hybrid Inverter + Battery in One
STREAM Ultra integrates a grid-tied microinverter with battery storage, converting solar energy into usable power and storing any surplus for later—whether during high-demand periods, at night, or during outages.
Solar Panel
Solar Panel
Capture solar energy, supply your home, and reduce reliance on the grid.
Capture More Sunlight for Savings – Dual-Mode 3,200W Solar Input
EcoFlow STREAM Ultra features a 4-MPPT solar input design supporting up to 2,000W of solar input. For even more power, it seamlessly integrates with the EcoFlow STREAM Microinverter, enabling an additional 1,200W of solar input through the microinverter. This dual-mode setup allows you to harness energy from multiple rooftop orientations or zones, maximizing generation from every available sunlit area.
Power Your Home Smarter with Solar — Up to 1,200W Grid-Tied AC Output⁵
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 allow simultaneous powering of two appliances, providing up to 800W output from a single unit or up to 1,200W when paired with the STREAM Microinverter — ideal for essential household devices. In an outage, backup power is reserved solely for essential appliances.
Plug & Play⁶ and Save With Peace of Mind
Multi-layered Smart Protection
A masterpiece in the industry—mastering peace of mind at home.
Anti-Backfeed Protection
Multi-Layer BMS Protection
6,000 Cycles LFP Battery
NEMA 4 Rating & Self-Heating Tech
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.
11.52kWh
1.92kWh
AI
EcoFlow App – Now Smarter with Eco-AI
Manage energy more efficiently and cut your electricity bills.
AI-Mode: 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.
Smart Energy Optimization with Smart Meter
Unlock intelligent energy management with a WiFi-connected Shelly Pro 3EM Smart Meter. The smart meter monitors total household consumption at millisecond-level precision, enabling real-time communication with STREAM Ultra and providing maximum solar use for power optimization and smart anti-backfeed protection, TOU-Aware AI Mode.
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.