Your path to a sunny future
A balcony power plant (BKW) transforms your balcony, garden, or roof into a personal power source, delivering electricity directly to your home. EcoFlow STREAM balcony power plants make this easy – they're quick to install, flexibly expandable, and controllable via app. Using solar energy thus becomes a benefit that makes your everyday life easier and more pleasant.
EcoFlow STREAM – more than just a balcony power plant
The STREAM series is currently the most innovative battery system in the industry and offers many advantages:
- Easy installation: Plug & Play – unpack, connect, save.
- Smart control: AI-supported and conveniently controllable via the EcoFlow app.
- Flexible and decentralized: Can be placed on the balcony, terrace or in the garden.
- Modularly expandable: From 1.92 to 11.52 kWh capacity – grows with your needs.
- Future-proof: Up to 6,000 charging cycles, 10-year warranty.
With STREAM you can turn your balcony into a powerhouse and get the most out of your energy supply.
Your savings with STREAM
This is the biggest advantage: With an EcoFlow STREAM balcony power plant, you not only lower your electricity bill – you use self-generated electricity precisely when you are at home . The stored solar power supplies you in the evenings and mornings instead of going unused at midday. Even an average household with an annual consumption of 3,500 kWh (approximately €1,395 in electricity costs per year) can save up to €350 per year .
👉 Your investment will pay for itself in just two years – and you'll benefit from it permanently. The EcoFlow app helps you get even more out of it: Schedules, automation, and integration into your smart home (e.g., Shelly, Tibber, Tapo) ensure that devices run exactly when the battery and sunlight allow.
Example calculation (simplified assumptions)
- Electricity price: €0.40/kWh (≈ €1,395 / 3,500 kWh)
- Daily profile: You are often on the move during the day and use electricity mainly in the morning/evening .
- PV generation: On average, 3.0 kWh of solar power is available per day.
Without memory
- Directly used during the day: 1.0 kWh
- Unused: 2.0 kWh
- Savings per day: 1.0 kWh × €0.40 = €0.40
- ≈ 146 € per year
With STREAM Max (1.92 kWh) + app control
- Directly used during the day: 1.0 kWh
- Stored in the battery and used in the evening: 1.5 kWh
- Rest (weather/losses): 0.5 kWh
- Savings per day: (1.0 + 1.5) kWh × €0.40 = €1.00
- ≈ 365 € per year
What the app actually offers
- Schedules: Dishwasher/dryer start automatically when the battery reaches a full level.
- Load shifting: Operate the hot water boiler or heating pump in the evening with stored energy.
- Optimization: Smooth out consumption peaks and maximize self-consumption with smart home partners (e.g., Shelly, Tibber, Tapo).
This significantly increases your self-consumption and your independence from the grid. Every kilowatt-hour you use reduces your running costs – day after day.
STREAM models at a glance
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STREAM Max
- Storage capacity: 1.92 kWh , expandable
- Set of 2 x 430W bifacial solar panels
- Up to 25% higher yield with double-sided solar cells
- Perfect for beginners who want to start right away
STREAM Pro / AC Pro
- AC-coupled storage – ideal for retrofitting existing balcony power plants
- Compatible with almost all microinverters
- Controllable via the app
- Attractively priced to upgrade existing systems
STREAM Ultra & Ultra X
- Up to 11.52 kWh storage capacity
- Multiple MPPT inputs for flexible module placement
- Weatherproof and robust for maximum independence
- Ideal for households with higher electricity demand or greater PV potential
Popular sets at SOLARKONTOR
- STREAM Max Set (from 789 €) : 1.92 kWh storage, 2 × 430 W bifacial modules, quick plug-and-play installation – To the set
- STREAM AC Pro (from 649 €) : Storage solution for existing balcony power plants, compatible with almost all micro inverters – To the set
- STREAM Ultra X complete set : expandable storage solution up to 11.52 kWh, weatherproof and ideal for long-term expansion – To the set
These sets are available directly in SOLARKONTOR Shop available and offer you various options – from an affordable entry-level solution to a comprehensive solution for maximum independence.
STREAM in the Smart Home
The EcoFlow STREAM series integrates seamlessly into your smart home . Thanks to compatibility with Shelly, Tibber, Tapo , and other applications, you can intelligently manage your energy consumption, maximize your self-consumption, and use electricity exactly when you need it.
How does the integration work?
- Shelly: With Shelly Smart Plugs or relays, you can switch specific devices on and off as soon as your STREAM storage has enough energy available.
- Tibber: Use dynamic electricity tariffs and optimize your grid consumption. Your STREAM system can adapt to favorable tariff times and increase your self-consumption.
- Tapo: With Tapo's smart sockets and lamps, you can conveniently control devices via app and ensure that solar power is used efficiently.
Your benefits in everyday life
- Automation: Appliances such as washing machines, dryers, and dishwashers start exactly when stored solar power is available.
- Flexibility: Adapt schedules and routines to your individual daily schedule.
- Convenience: Everything can be centrally controlled via the EcoFlow app and combined with other smart home components.
This makes your STREAM not just a power source, but the heart of an intelligent and efficient home.
Save twice: Promotion & discount campaign
In addition to regional subsidies for balcony power plants, you can currently also get 10% discount with code EFSTREAM10 (valid until December 31, 2025). This way, you can start your energy independence even more affordably.
Start now and save
An EcoFlow STREAM balcony power plant is more than just a small solar system—it's your personal step toward independence and financial relief. The combination of intelligent app control, modular expandability, and the ability to use solar power precisely when you're at home lets you maximize every hour of sunshine.
You save money and protect yourself against rising electricity prices in the long term. This makes your STREAM system an investment that pays off day after day and gives you noticeably more freedom in your everyday life.
Whether as a compact entry-level set or as a comprehensive solution with a large storage capacity – at SOLARKONTOR you will find the right STREAM system for your needs.
👉 Secure your EcoFlow STREAM system now at SOLARKONTOR, take advantage of the 10% discount and start your personal energy independence today!
