EcoFlow STREAM Ultra
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.
How does it work to utilize solar energy?
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 $1027.
1. 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.
2. 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.
EcoFlow STREAM Ultra – 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
1. AI-TOU (Dynamic Electricity Tariff)
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 supported.
2. 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.
Read: EcoFlow STREAM Ultra Review
EcoFlow STREAM Ultra Specs
| Capacity | 1.92kWh | Rated Voltage | 19.2V⎓ |
| Max.Charging Power | 1050W | Max.Discharging Power | 1200W |
| Cell Chemistry & Cycle Life | 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 Temperature | –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 |
| Built-in Feature | Output Overcurrent Protection, Output Overvoltage Protection, Anti-islanding Protection | Net. Weight | 23.1±0.5kg |
EcoFlow Stores
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FAQs About BLUETTI Elite 300 Portable
Are there any electricity billing requirements for grid-connected use of STREAM Ultra? If the requirements are not met, what should I do?
1. Before purchasing or using this product, please confirm whether your household electricity billing supports net metering.
2. If net metering is not supported, you need to use the STREAM system with Shelly Pro 3EM configured for single-phase monitorin. Make sure all STREAM Ultra units are installed on the same phase as the Shelly Pro 3EM (with L2 as an example in the figure) to ensure optimal energy management. After installation is complete, open the Feed-in Control in the app's System Settings. Then go to Energy Delivery Strategy, select Smart Meter Monitoring Mode, and link the Shelly Pro 3EM to begin operation.
How can I confirm whether my household electricity billing supports net metering?
Please contact the utility company to confirm whether net metering is supported for your house.
Is STREAM Ultra waterproof and dustproof?
The STREAM Ultra is rated NEMA 4, suitable for indoor/outdoor use. Install in a shaded, ventilated location out of direct sunlight.
Can I extend the EcoFlow STREAM Ultra AC Cable?
No, not supported.
Can the EcoFlow STREAM Ultra AC Cable be plugged into a power strip?
This is not recommended, as malfunctioning devices on the power strip could damage the STREAM Ultra.
Can I install the STREAM Ultra by myself?
The STREAM Ultra can be installed and maintained by users themselves (only available in Utah, USA now).
*Please refer to the Power Connection Requirements section under the Installation Preparation chapter in the Installation Guide to choose the installation method that suits your household situation.
*Each time you change the installation location, please refer to the above information again.
Can the STREAM Microinverter connect to the STREAM Ultra, and what about other (third-party) Microinverters?
Yes, and it supports connecting STREAM Ultra to third-party microinverterson the market through the AC outlets (NEMA 5-15).
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