EcoFlow STREAM Extra Battery Series

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EcoFlow STREAM AC Pro

Plug and Save Everywhere, Drive Bills To 0

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100% Compatible

with All Microinverters

1200W

Bidirectional Inverter

Bills to 0

Home Solar To 100%

10-Year Warranty

Distributed Power

Power Flows Where It's Needed

0 Feed-In To The Grid

With EcoFlow/Shelly Smart Meter

1.92kWh–11.52kWh

Expandable Capacity

EcoFlow OASIS

AI-TOU

Save More With EcoFlow APP

  • STREAM AC Series
  • Premuim Set
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Perfect Solution For Extended Storage, Drive Bills To 0
Powered by AC-coupling technology, EcoFlow STREAM AC Pro integrates with any microinverter or connects directly to wall sockets, efficiently storing solar power and delivering uninterrupted energy throughout your home¹.
1041 kWh
Produces 1,041 kWh of solar energy annually
0 Bills
Cuts daily electricity costs to nearly zero
33.4%
Achieves a 33.4% reduction in annual energy use

Works With All Microinverters

If you have installed a microinverter in your home and need more storage, there is no need to worry about compatibility with EcoFlow STREAM AC Pro. It connects to all microinverters via wall sockets with an AC-coupled solution. Just plug into your existing system for maximum power generation and lower power bills.

2300W AC Output

Run two appliances independently via dual AC outlets, with 1200W output per battery and auto-boost up to 2300W Pair with another STREAM AC Pro or STREAM Ultra for full 2300W AC output, while the built-in battery ensures off-grid use and backup during outages.

  • Microwave Oven

  • Toaster

  • Vacuum Cleaner

  • Coffee Maker

  • Blender

  • Juicer

  • Wi‑Fi Router

  • Phone Charger

  • Laptop

Bifacial Power-Generation Technology Captures More Sunlight
N-type bifacial panels use the front for direct sunlight and the back for reflected light; the higher their double-sided efficiency, the more total power they produce.
7.21%
Grass
9.54%
Cement
9.84%
Sandy Land
14.83%
Snow
24.85%
Mirror

More Power in Low Light with N-Type Technology

N-type solar cells catch weak light better than P-type ones, so at dawn, dusk, or on cloudy days they grab more light and make more power.
P-Type
N-Type
Solar Power Production Time
P-Type
07:0018:00
N-Type
06:0019:00
One Step Closer To 0 Bills
Build Your Home Solar Plant With EcoFlow STREAM AC Pro
Power High-Watt
2,300W AC output
Power Anywhere
Plug & Play | Vertical design
Power as One
Expandable to 11.52kWh | Share energy across devices

Power a Single High-Watt Appliance Up to 2300W — One Appliance Zero Bills Unlocked

Go “Bills to 0” with 4 smart setups. From lights and routers to fridges and kettles, the EcoFlow STREAM Series powers appliances up to 2,300W — all powered by the sun.

Parallel Mode Up to 2,300W Solar Coverage
Device Setup: Any two STREAM batteries — any model Connect two units with a parallel cable to power high-wattage appliances like ovens and dishwashers — all powered by solar. Output: 1,200W (main) + 1,100W (secondary) = 2,300W total output
Note: Appliances should be plugged into the battery's AC outlet. Please refer to the rating label on each device for actual power usage.
Distributed Mode Up to 2,000W Solar Coverage
Device Setup: Any two STREAM batteries — any model No cable required — simply plug each unit into separate wall sockets. Solar powers up to 2,000W, with support for up to 2,300W total output when needed. Output: 1,200W (main) + 800W (secondary) + 300W (grid) = 2,300W total output
Note: Appliances should be plugged into the battery's AC outlet. Please refer to the rating label on each device for actual power usage.
Single Unit Mode Up to 1,200W Solar Coverage
Device Setup: 1 × STREAM Ultra One unit powers your everyday essentials — ideal for running TVs, cookers, fans, and more with ease. Output: 1,200W from a single battery
Note: Appliances should be plugged into the battery's AC outlet. Please refer to the rating label on each device for actual power usage.
Basic Kit Mode Up to 800W Solar Coverage
Device Setup: 2 solar panels + 1 microinverter (standard setup) Perfect for powering lightweight essentials such as routers, lighting, and laptops. Output: 800W output via microinverter only
Note: Please refer to each appliance's rating label for actual power usage.
2300W
2000W
1200W
800W

Power Anywhere

From One Appliance to Every Room — Whole-Home Zero Bills Made Possible

EcoFlow STREAM AC Pro offers flexible installation throughout the home. Simply plug in to add energy storage to laundry rooms or kitchens, and place beside appliances like washing machines or fridges. Run multiple devices simultaneously — with up to 7,200W Total AC Output (1,200W per unit) when using 6 connected STREAM AC Pro/Ultra units. Modular and scalable to match your home's evolving energy needs.

Plug in Anywhere and Save

Plug & Play
No drilling required, easy setup anywhere Quick, plug-and-play installation with no electrician needed.
Vertical Design
Ulm Design Style, "Form follows function" philosophy. Sleek vertical design save more than 50% of space suited for both indoor and outdoor spaces.

Power as One

More Solar In, More Capacity Stored — Up to 6 Units Say Goodbye to Power Worries

EcoFlow STREAM AC Pro supports flexible DIY solar storage expansion from 1.92kWh to 11.52kWh³ with up to 6 connected units. Easily pair two units to double your capacity or integrate with EcoFlow DELTA Series batteries for even greater storage.
11.52kWh Capacity
1.92kWh Capacity

Power That Flows Where It’s Needed

Unlike regular balcony solar add-ons, EcoFlow STREAM batteries can be placed anywhere in your home to share power. If one runs low, AI shifts power from the closest battery — enabled by a globally leading Wi-Fi 6 and AI-powered wireless battery sharing technology.
I need more energy.
EcoFlow Redefines Balcony Solar Systems
More Savings, Fewer Calculations—Through Software⁴
Save More
TOU Model | Solar Forecasting
Save Smart
Compatible Smart Accessories
Save Easy
AI Assistant

Save More

Boost Your Savings with the TOU and Solar Forecasts⁵

€228

Up to €228 ADDITIONAL annual savings

29%

Up to 29% HIGHER annual savings

108%

Up to 108% GREATER winter savings

Time‑of‑Use (TOU)  Dynamic Electricity Pricing

Charge when prices are low, use when prices are high. AI-TOU model offers you the optimal bill-saving strategy every 60 minutes, based on the analysis of tariff data from Nord Pool, Epex Spot, Rabot Energy, Octopus, and more.

Up to 600+
tariff data platforms coverage
60 min
strategy update frequency

High Accuracy Solar Forecasts, Maximise Your Savings All Year Round⁶

Powered by Solcast's world-leading solar and weather forecasting, processing over 100 million forecasts per hour—including geolocation, satellite imagery, historical data, and TMYs (Typical Meteorological Years) —to deliver real-time insights and savings.

94%
peak accuracy
3 days
forecasts ahead
100,000,000+
weather forecasts processed per hour

Save Smart

Smart Meter × Smart Plug: Zero Feed-in. All Solar, All Yours⁷

Smart Meter · Monitor
Monitors household power flow in real time, precisely detects every surplus watt.
Smart Plug · Switch
Automatically switches each device, efficiently uses every surplus watt.
Smart App · Schedule
Intelligently schedules surplus power, automatically decides when and where to use it for savings.

Seamless Smart Home Integration

EcoFlow works with leading smart energy brands like Shelly, Tibber, and more, managing your home's power with the Smart Meter, Smart Plugs, and the EcoFlow app. Automatically run appliances like your sprinkler, e-bike, or ventilation using surplus solar. Let every ray of sunshine stay yours.

Save Easy

EcoFlow AI Assistant: No Math. Just Savings.⁸

Your AI Assistant simplifies energy management by doing the hard work for you—analysing data, spotting inefficiencies, and giving clear, actionable recommendations. No calculations, no guesswork—just smart, easy decisions.

Status Overview

AI Assistant

Energy Report

Energy-Saving Tips

Want to save even more with our app?Explore EcoFlow OASIS
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

Silent Operation — as Low as 30 dB

Experience whisper-quiet performance with noise levels as low as 30 dB. The advanced self-cooling design dissipates heat efficiently — no disruptive fan noise, just silent, reliable power.
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.
NEW
250W Solar Panel
Learn More
N-type
Cell Type
TopCon
Technology
Yes
Bifacial
1157×1165×20 mm
Size
~10 kg
Weight
≥24.7%
Efficiency
IP68
IP Rating
Bifacial + compact design, ideal for small balconies
Key Benefit
400W Solar Panel
Learn More
P-type
Cell Type
PERC
Technology
No
Bifacial
1722×1134×34 mm
Size
21.8 kg
Weight
≥23%
Efficiency
IP68
IP Rating
Compact size for limited spaces
Key Benefit
450W Solar Panel
Learn More
P-type
Cell Type
PERC
Technology
No
Bifacial
1908×1134×30 mm
Size
22.4 kg
Weight
≥23.3%
Efficiency
IP68
IP Rating
Higher output for more daily power
Key Benefit
NEW
520W Solar Panel
Learn More
N-type
Cell Type
TopCon
Technology
Yes
Bifacial
2094×1134×30 mm
Size
24.6 kg
Weight
≥24.8%
Efficiency
IP68
IP Rating
Bifacial + high power for maximum energy yield
Key Benefit
The total solar panel capacity is designed to be slightly above 800W to ensure your system can reach close to the 800W input limit even under low-light conditions or power loss.

Perfectly Integrated with PowerOcean

Future-proof your investment. When you upgrade to EcoFlow PowerOcean — our professional home battery solution — your STREAM products stay valuable and seamlessly integrate into your expanded home energy system.
Explore PowerOcean
T&C
1. EcoFlow STREAM AC Pro harvests 1,041 kWh of solar energy annually. Based on Germany’s average household consumption of 3,113 kWh per year, the system provides 33.4% of total energy needs through continuous day-to-night solar supply. At an electricity rate of €0.40/kWh, this equates to estimated annual savings of €416. Actual savings may vary depending on consumption habits and energy price fluctuations. 2. Installation time is based on internal test results from the EcoFlow Lab. Real-world installation duration may vary depending on system configuration and application environment. 3. The maximum capacity is 6 units, expandable up to 11.52kWh with the EcoFlow STREAM AC Pro or EcoFlow STREAM Ultra. 4. Certain AI-powered features in the EcoFlow app require a premium subscription. Please consult the EcoFlow app for full details on available plans and feature access. 5. The calculation is an estimate based on 10 kWh/day electricity consumption in Munich, Germany (representing Central Europe), using STREAM series products (6kWh batteries and 2800W PV). It is simulated by AI, factoring in fluctuations in electricity prices and usage for a closer reflection of real-world conditions. Actual results may vary depending on local conditions. 6. The EcoFlow app integrates weather data from Solcast, running over 100 million data operations per hour to deliver forecasts with up to 94% accuracy and horizons of up to three days. (https://solcast.com/) 7. After installing STREAM Series battery and compatible Smart Meter, users can connect appliances to wall outlets via compatible Smart Plugs, enabling remote on/off control and operation scheduling through the EcoFlow app—thereby minimizing solar energy waste. 8. Actual EcoFlow app functionality may vary; the screens shown are for illustrative purposes only.