Main Features:
- Save ￡963 Annually on Electricity: STREAM Ultra’s 2800W high-power solar input with 4 MPPT channels efficiently reduces your energy costs. The dual AC ports (1200W–2300W) power 99% of home appliances simultaneously, maximising savings effortlessly.
- Flexible Capacity, Easy DIY Expansion: STREAM Ultra effortlessly expands from 1.92kWh to 11.52kWh, connecting up to 6 units in your home. Easily integrates with EcoFlow DELTA Series batteries for increased energy storage.
- Solar Energy Indoors – Plug & Power Anywhere: EcoFlow STREAM Series batteries feature AC-coupling technology, enabling flexible indoor placement. Simply plug in and directly power household appliances like fridges, washing machines, or coffee makers with stored solar energy.
- Safe, Silent, & Space-Saving: Featuring a durable 10-year LFP battery (6,000 cycles), STREAM Ultra operates silently for undisturbed family moments. Its IP65 water-resistant and dustproof design withstands temperatures down to -20℃. Compact (only 26cm wide) with hidden wiring, it blends seamlessly into your home.
- Intelligent AI Control for Maximum Savings: EcoFlow’s AI-powered app analyses dynamic electricity pricing, your energy habits, and device status, refreshing optimal Time-of-Use (TOU) strategies hourly. Monitor performance, customise energy usage, and enjoy intelligent 24-hour support—saving you money effortlessly.
- Achieve Nearly 100% Solar Independence: Multiple EcoFlow STREAM Series batteries form an AI-managed energy network, automatically transferring surplus solar power between rooms. Maximise your solar efficiency, boost self-sufficiency, and significantly reduce electricity bills.
All-in-One Hybrid System
The smart core of the EcoFlow STREAM Power Plant — combining energy storage and a built-in microinverter in one seamless solution.
How Does It Work to Drive Your Energy Bills to 0?
As the morning sun rises, EcoFlow STREAM Ultra instantly captures solar energy for your home, storing any surplus automatically. At night, this stored power runs your appliances, directly or through the grid. Generating up to 2,218kWh annually, it meets 71.3% of household needs, cutting electricity bills to almost zero¹.
Dual-mode 2800W solar input
EcoFlow STREAM Ultra features a 4-MPPT design, supporting up to 2,000W solar input. It also works with third-party microinverters; connecting to the solar battery adds 800W more. Maximises power generation from every sunlit area.
2300W AC output
Run two appliances independently via dual AC outlets, with 1,200W output per battery and auto-boost up to 2,300W. Pair with another STREAM Ultra or STREAM AC Pro for full 2,300W AC output. The built-in battery ensures off-grid use and backup during outages.
One Step Closer To 0 Bills
Build Your Home Solar Plant Around EcoFlow STREAM Ultra
Big or Small, Power It All
Go “Bills to 0” with 3 smart setups. From lights and routers to fridges and kettles, the EcoFlow STREAM Series powers appliance up to 2,300W — all powered by the sun.
Longer Runtime with Scalable Capacity and Solar Input
EcoFlow STREAM Ultra offers flexible DIY solar storage & PV input expansion — solar storage expansion from 1.92kWh up to 11.52kWh³ , and PV input expansion from 2kW(4 MPPT) to 12kW (24 MPPT), 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.
More Savings, Fewer Calculations—Through Software⁴
Boost Your Savings with the TOU Model and Solar Forecasting⁵
Time‑of‑Use (TOU) Dynamic Electricity Pricing
Charge when prices are low, supply 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.
High Accuracy Solar Forecasts, Maximize 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.
Smart Meter × Smart Plug: Zero Feed-in. All Solar, All Yours⁷
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.
EcoFlow AI Assistant: No Math. Just Savings.⁸
Your AI Assistant simplifies energy management by doing the hard work for you—analyzing data, spotting inefficiencies, and giving clear, actionable recommendations. No calculations, no guesswork—just smart, easy decisions.
Protecting Your Privacy, Always.
EcoFlow protects your data using top-level security measures certified by global standards including TRUSTe, NIST, ISO, and more.
Safety You Can Trust
Built into Both Hardware & Software
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.
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
Specs – STREAM Ultra
Capacity
1.92kWh
Cycle Life
6000 cycles
AC Charging Input
1050W
AC Output
1200W
MPPT
4
PV Input Power
2000W (500W × 4)
AC Output-Grid Tied
800W
AC Charging Input
10A
Max Device Power Supported
2300W (10A)
Operating Temperature
-20~55°C
Battery Self-Heating
Low-Temperature Charging Activation (≤5°C)
Connection
Wi-Fi/Bluetooth
Ingress Protection Rating
IP65
Net Weight
23.1kg
Dimensions
284mm x 255mm x 458mm
Acoustic Noise
＜30 dB
Warranty
New: 10-Year
Refurbished: 2-Year
