EcoFlow STREAM Series

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Balcony storage solution for maximum solar utilisation.

EcoFlow STREAM Series Plug & Play Solar Plant

Break 800W Output Limits，100% Sun-Paid

Break 800W Limits

Innovation, Certified

4 MPPT

With Low-Light Solar Cells

AI-Based Home Energy Management System

Self Consumption Mode / AI Mode

Seamless Smart Home Integration

Smart Plug / Smart Meter / EcoFlow Ecosystem

Break 800W Limits

Up to 2300W Output Innovation, Certified.

Save up to €1,993 Annually¹

Plug and Play Anywhere

3.84kWh Scale up to 23kWh

Year Lifespan Safe and Durable

Recommendation
STREAM Ultra Bundles
For STREAM Owners

Help Me Choose

Maximum Solar Utilisation

Save €1,993 | 2300W Output | 3.84–23kWh Capacity

Maximum Solar Utilisation, Maximum Savings

90%
Covers 90% of Appliances
€1,993
Save up to €1,993 per Year
4-Year
4-Year Payback Period

Energy Solutions Tailored for Every Home

Energy-Saving Households
High-Demand Households
Rooftop Solar Households

3,500kWh
Consuming approximately 3,500kWh Annually
EcoFlow STREAM Ultra X + 4 × 450W Solar Panels
€717
Saves €717 per Year⁵

4,500kWh
Consuming approximately 4,500kWh Annually
EcoFlow STREAM Ultra X × 2 + 4 × 500W Solar Panels
€742
Saves €742 per Year⁶

5,500kWh
Consuming approximately 5,500kWh Annually
EcoFlow STREAM Ultra X × 6
€2,391
Saves €2,391 per Year⁷

2300W Output for Peak Demand Moments

The EcoFlow STREAM Ultra X provides a leading 2300W AC output, letting you power high-demand appliances through its AC socket using solar energy stored in the battery.

Powers Appliances Up to 2300W With a Single Unit.

EcoFlow STREAM Series
Powers appliances up to 2300W by combining 1200W from solar and 1100W from the grid simultaneously.
- 1200 W
- 1100 W
Traditional Solar Plant System
Powers appliances up to 2300W by combining 800W from solar and 1500W from the grid simultaneously.
- 800 W
- 1500 W

When you connect two units in parallel, you can boost the output to 2300W, allowing you to power heavy-duty appliances 100% with solar energy.

EcoFlow STREAM Series
Powers appliances up to 2300W using 100% solar energy.
- 2300 W
Traditional Solar Plant System
Powers appliances up to 2300W by combining 800W from solar and 1500W from the grid simultaneously.
- 800 W
- 1500 W

Sunset to Sunrise Power: From 3.84kWh to 23kWh

EcoFlow STREAM Ultra X goes beyond industry standards, capturing surplus solar energy during the day to keep you powered through the night — and it scales easily to fit your energy needs.

3.84kWh
With a single unit
23kWh
With 6 units

2 Ways to Scale for Different Needs

Dual Units in Parallel

Connect two STREAM Series units, or pair a STREAM Ultra X with any STREAM Extra Batteries using a Parallel Cable. This setup lets you run heavy-duty appliances up to 2300W, all powered by solar energy.

2 Ways to Scale for Different Needs

Plug-and-Play Decentralised Solar Network

With multiple STREAM products, you can place one near your solar panels and the others anywhere in your home. Once the batteries are plugged into AC sockets, they automatically form a solar network, distributing energy to your devices in the laundry, kitchen, living room, and beyond.

* Both scaling methods require all devices to connect to the same Wi-Fi network. Even without cloud access, seamless operation over your local LAN keeps your energy flowing without interruption.

Capture Every Ray, Maximise Sunlight

Harness the sun's power faster than ever. With four advanced MPPTs and a massive 2000W solar input, the STREAM Battery captures and stores more solar energy, more efficiently.

Don't Let Clouds or Dusk Limit Your Solar Power

The STREAM Battery uses advanced low-light technology to capture energy from even muted skies, delivering up to one extra hour of solar harvest each day compared to industry averages.

AI-Driven Energy, Always Optimised

EcoFlow OASIS doesn’t just answer your energy management questions quickly—it also provides smart analysis and tailored optimisation tips to help you get the most from your system.

AI Mode: Smarter Energy for Dynamic Pricing⁸

EcoFlow’s AI Mode analyses huge amounts of data, including dynamic electricity tariffs, solar forecasts, consumption predictions, and battery status. It can boost your annual savings by up to 29%. If the system predicts cloudy weather, it will automatically charge your battery during low-rate periods to ensure you have enough power for peak times in the evening—maximising your savings without you lifting a finger.

Over 600
Supports over 600 tariff data platforms⁹
Up to 29%
Up to 29% higher savings per year

* For the best results, it's recommended to pair AI Mode with a Smart Meter.

Self-Powered, Fully Customisable

Set your own preferences for battery level, time-of-use pricing, and scheduling. Store solar energy or power your home whenever your battery exceeds your chosen reserve—helping you cut down on grid electricity.

* For the best results, it's recommend to use a Smart Meter.

Learn More about the EcoFlow OASIS System

Total EcoFlow Energy Ecosystem Harmony

Compatible with EcoFlow Smart Meter and Smart Plug

Take full control with EcoFlow Smart Meters or Smart Plugs to ensure no power goes to waste. When you connect an EcoFlow Smart Meter with the STREAM Series, they communicate directly, even offline. This allows the STREAM Series to automatically adjust its output to your home grid in real time, with minimal delay.

Works Seamlessly with EcoFlow DELTA Series and PowerOcean

The STREAM Series doesn’t just store solar energy—it shares it intelligently across your EcoFlow ecosystem. Effortlessly transfer surplus solar from STREAM Series to DELTA Series or PowerOcean, and STREAM can also absorb excess solar energy from PowerOcean as needed.

Cross-Brand Ecosystem Harmony

EcoFlow OASIS brings together third-party devices that use Tibber, Matter, and Shelly protocols, all on one unified platform. Enjoy a simpler, more intuitive experience without the hassle of switching between multiple platforms and apps.

Safety You Can Trust

Built into both hardware and software

Flame-Retardant Casing

Thermal aerogel insulation resists high heat and flames.

Multi-Layer Protection

Overload, overheating, and blast-proof valve safety layers.

Anti-Backfeed Protection

Prevents reverse current and stabilises your home grid.

Fast Voltage Drop

Drops to safe voltage in just 0.7 seconds when disconnected.

Smart Battery Management

AI system optimises charge cycles and extends battery life.

Privacy & Data Protection

Certified to global standards for security and compliance.

Long-Lasting Power with LFP Technology

Equipped with advanced LFP battery cells, STREAM delivers up to 6,000 deep cycles with 70% capacity retention — lasting up to 3× longer than traditional batteries. That means up to 15 years of reliable use, backed by a 10-year warranty.

6,000
Cycles
15-Year
Lifespan
10-Year
Warranty

Year Lifespan Safe and Durable

Ready for Any Weather

Reliable Winter performance

Equipped with self-heating technology, the system operates smoothly even at -20°C.

IP65 Water and Dust Resistance

With an IP65 water-resistant rating, the STREAM Batteries resists rain and dust — ideal for outdoor use in all seasons.

Beat the Heat Wave

As the industry’s first balcony storage system with automotive-grade silicon carbide (SiC) power modules, we achieve 70% lower resistance to handle extreme summer heat. Thanks to an advanced self-cooling design, heat is dissipated efficiently—so even during the hottest days, you’ll get silent, reliable power without disruptive fan noise.

A Masterpiece in Industrial Design

Crafted from eco-textured, paint-free materials for a reduced carbon footprint. Its scratch-resistant unibody construction delivers lasting durability, while interchangeable front panels – warm Natural Wood, and sleek Matte Black – effortlessly adapt to your home decor.

Warm Wood Style, Effortlessly Chic

With its realistic wood texture, this finish brings a cosy warmth to any room.

Protecting Your Privacy, Always.

EcoFlow protects your data using top-level security measures certified by global standards including TRUSTe, NIST, ISO, and more.

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T&C

General

1. If you encounter any problems during the promotion, please contact support.eu@ecoflow.com for assistance. 2. To the extent permitted by applicable law, we may decide to modify these rules or cancel the promotion at any time. If there is any fraud or abuse related to the promotion, we reserve the right to exclude any customer from the promotion. 3. Participants in the Sale agree to be bound by the terms and conditions set forth herein and understand that EcoFlow's decisions are final and binding. No correspondence or appeals will be entertained. EcoFlow reserves the right to make the final and ultimate interpretation of this campaign. 4. All orders must comply with EcoFlow's purchase agreement and return policy during the sale promotion. 5. The sale promotion does not apply to wholesale or distributor orders. 6. Any unauthorized or fraudulent behaviour will result in the disqualification of participants. 7. Participants must comply with all applicable laws and regulations. 8. EcoFlow reserves the right to stop, cancel, or change the promotion at any time during the promotion. Any changes will be announced on the EcoFlow official website. 9. All prizes in this promotion are limited in quantity and are available on a first-come, first-served basis. Any matters not covered herein will be handled according to EcoFlow's final interpretation. 10. EcoFlow will assume no responsibility for late entries, which may occur for any reason, including but not limited to network transmission failure. 11. EcoFlow will not be responsible for any direct or indirect losses or damages incurred by any party, including the participants, in connection with or arising from acts or omissions or any way related to this campaign. 12. Participants agree to release and discharge EcoFlow from any liabilities and claims, including breach of contract, tort, negligence, or any other cause of action at law or equity, arising out of or in any way connected to this campaign or the participant's entry into the campaign. 13. There may be certain orders that we are either unable to accept or must cancel. We reserve the right, at our sole discretion, to refuse or cancel any order for any reason. We are not responsible for inaccuracies or errors.

Disclaimer

STREAM Ultra X features a battery capacity around 40% higher than industry standards, helping to minimise solar energy waste. With support for up to 2300W AC output, it can power high-demand appliances, making it the most efficient balcony storage solution for solar energy use. Estimated Electricity Cost Savings The estimated savings are calculated using the following formula: - Annual Savings = Savings from self-consumed system generation + Savings from surplus energy utilisation - Generation estimates: PVWatts Calculator Self-consumption rate: Estimated using HTW Berlin's Independence Calculator (source) - Electricity rate: €0.40/kWh - Estimated surplus energy utilisation rate (AI Mode, Solar Forecast): 35% Note: Savings will vary depending on geographic location, panel orientation, daily electricity prices, and other factors. Example Calculations 1. Configuration: Ultra X × 6 + 10 × 500W solar panels (5,000W total) Annual savings: (5328kWh × 90% × €0.40/kWh) + (5328kWh × 10% × 35% × €0.40/kWh) = €1,993 2/3/4. Generation estimates from: PVWatts Calculator 5. Configuration: Ultra X × 1 + 4 × 450W panels (1,800W total) Annual savings: (1918kWh × 90% × €0.40/kWh) + (1918kWh × 10% × 35% × €0.40/kWh) = €717 6. Configuration: Ultra X × 2 + 4 × 500W solar panels (2000W total) Annual savings: (1983kWh × 90% × €0.40/kWh) + (1983kWh × 10% × 35% × €0.40/kWh) = €742 7. Configuration: Ultra X × 6 with a 10kW existing rooftop PV system Annual savings: (6393kWh × 90% × €0.40/kWh) + (6393kWh × 10% × 35% × €0.40/kWh) = €2,391 8. Some AI features in the EcoFlow app require a premium subscription. Please refer to the app for details on plans and feature availability. 9. The EcoFlow app integrates weather data from Solcast, performing over 100 million data operations per hour to deliver forecasts with up to 94% accuracy and a three-day horizon. (source) Regulatory Notice (Germany) To qualify for simplified plug-in solar exemptions under §8 Para. 5a EEG 2023 and the "Solar Package I": - Installed PV rated power must be ≤ 2,000Wp - Inverter apparent power must be ≤ 800VA If your total PV capacity exceeds 2,000Wp, further requirements with your grid operator may apply, including: a) Registration b) Mandatory metering modifications c) Formal approval procedures Always check local regulations before installation. The plug-and-play solar system allows for independent installation, but grid registration is mandatory (in Germany, via the MaStR portal). Commissioning and grid connection must be carried out by certified professionals. German regulations require a licensed electrician to ensure compliance.