Balcony Power Station Set 1600 W with Storage – 4x SOLTURA 400 PRO + EcoFlow STREAM Ultra 1.92 kWh

For those who don't do things by halves, this is the set. It combines four SOLTURA 400 PRO All-Black panels – our most powerful monocrystalline modules – with the EcoFlow STREAM Ultra, the only balcony power station storage unit on the market with four independent MPPT trackers. The result: 1600 Wp of solar power, every panel individually regulated, direct self-consumption, evening supply from storage, and backup power capability in the event of a grid failure. All in one device, all via a standard wall socket.

4x SOLTURA 400 PRO – four panels, one coherent system

Each SOLTURA 400 PRO panel delivers 400 W of peak power from 72 Grade A monocrystalline solar cells. The fully black design with anodised aluminium frame, hail-resistant safety glass, and IP65-certified junction box ensures a visually cohesive and technically robust system. Four panels don't just mean four times the power – they mean four independent energy sources, optimised together and individually.

One panel per MPPT tracker – the decisive difference

The EcoFlow STREAM Ultra has four independent MPPT trackers. In this set, each tracker is paired with exactly one SOLTURA 400 PRO panel – a 1:1 pairing that is technically hard to beat. What this means in practice: every panel is individually regulated to its optimal operating point. A panel in the shade does not pull down the performance of the others. Panels on slightly different facades or with minimally varying orientations can be combined without sacrificing system yield. This makes the set not only powerful, but exceptionally tolerant of complex installation situations.

EcoFlow STREAM Ultra – inverter, storage and backup in one

The EcoFlow STREAM Ultra takes in the 1600 Wp from all four panels, feeds up to 600 W into the home network, and stores surplus energy in its integrated 1.92 kWh storage (LFP cells). In the evening, when the sun is gone, it delivers stored energy at up to 1200 W directly to household appliances. In bypass mode, it channels up to 2300 W from the grid when needed – washing machines, ovens, and other high-draw devices keep running. And in the event of a power outage, the STREAM Ultra takes over backup supply instantly, without interruption and without manual intervention.

AI energy management – fully automatic, around the clock

The integrated Eco-AI continuously analyses the household's energy consumption and decides in real time when to feed in, store, or draw from the grid. The AI-TOU mode also factors in tariff rates and automatically shifts charge and discharge cycles to the most cost-effective time windows. Everything is visible and controllable via the free EcoFlow app.

Plug and Play – no electrician, no waiting time

Despite the power of this system, installation stays straightforward: the four SOLTURA panels are connected to the four inputs of the STREAM Ultra via the included MC4 solar cables. The unit is then simply plugged into a standard wall socket. Commissioning and configuration are handled entirely via the EcoFlow app. No electrician, no building permit on the device side, no waiting time.

What this set produces

With a realistic annual production of approximately 1200 kWh and an electricity price of CHF 0.29 per kWh, this set generates annual savings of around CHF 350 – with an upward trend as electricity prices continue to rise. The SOLTURA panels are designed for a service life of over 25 years, and the STREAM Ultra delivers 6,000 charge cycles – equivalent to over 16 years of daily use.

Technical specifications – SOLTURA 400 PRO (per panel)

• Peak power (Pmax): 400 W
• Open circuit voltage (Voc): 46.6 V
• Short circuit current (Isc): 10.91 A
• Maximum power voltage (Vmp): 39.6 V
• Maximum power current (Imp): 10.10 A
• Cell technology: monocrystalline, 72 cells, Grade A
• Design: All-Black, anodised aluminium frame
• Dimensions: 1980 × 1000 × 40 mm
• Weight: 22.5 kg
• Junction box protection: IP65
• Connection cable: 90 cm, MC4 pre-mounted

Technical specifications – EcoFlow STREAM Ultra

• Max. PV input power: 2000 W (4x 500 W)
• MPPT trackers: 4 (one tracker per SOLTURA 400 PRO panel)
• Max. AC charging input: 1050 W
• AC output power, grid-connected: 600 W
• AC output power, off-grid: 1200 W (bypass up to 2300 W)
• Max. supported device power: 2300 W
• Capacity: 1.92 kWh (1920 Wh)
• Off-grid use: yes
• Service life: 6,000 cycles (LFP cells, 70 % residual capacity)
• Operating temperature: –20 °C to +55 °C
• Protection rating: IP65
• Connectivity: Wi-Fi / Bluetooth
• Noise level: <30 dB
• Dimensions: 284 × 255 × 458 mm
• Weight: 23.1 kg

Scope of delivery

• 4x SOLTURA 400 PRO solar panel, All-Black, 400 W
• 1x EcoFlow STREAM Ultra, 1.92 kWh
• 1x AC cable, 1.5 m (CH-T12)
• 4x solar panel extension cables (MC4), 2.95 m
• 1x PV spanner
• 1x mounting bracket
• 1x locking bracket
• Installation guide and safety instructions
• Warranty card

Mounting brackets for the solar panels are available separately.

Swiss Warranty – Local. Professional. Sustainable.

As the manufacturer of the SOLTURA panel line and an authorised EcoFlow partner, we provide the Swiss Warranty on all components of this set. In the event of a warranty claim, your products are inspected and repaired in Switzerland – short distances, expert support, no shipping abroad.