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Intelligent - Scalable - Powerful: Battery storage for balcony power plants & solar systems.
Maximize the performance of your balcony power plant or solar system – with the SunEnergy XT BK215 Plus storage
One of the most powerful storage power plants in its class
Use more solar power yourself. Waste less.
The SunEnergy XT BK215 Plus stores your solar energy exactly when it is generated – and makes it available to you exactly when you need it. Whether in the evening, at night, or on cloudy days: your energy belongs to you.
With a storage capacity of 2,150 Wh, your balcony power plant becomes a true energy system.
Modular. Scalable. Future-proof.
The BK215 Plus is the starting point of your energy independence
Thanks to its clever, modular design, you can expand the system at any time – without any conversion or technical knowledge. Simply plug in additional modules and you're done.
➡️ Up to 8.6 kWh storage capacity – whenever you want.
➡️ Up to 4 kW PV input power – significantly more than conventional balcony storage systems. This allows the system to grow with your needs.
Performance that impresses
The BK215 Plus delivers power:
You can always see what your system is delivering – and it delivers a lot!
Everything in view – anytime and anywhere
The SunEnergyXT Solar App shows you live:
Also made for outdoor use
The BK215 Plus is built for real conditions:
Whether in the basement, on the balcony, or terrace – the BK215 runs reliably.
Never waste energy again
With the SunEnergyXT BK215, you store your solar power instead of sending it to the grid without or with poor compensation.
You reduce your electricity bill, gain independence, and finally make your balcony power plant or solar system truly useful.
Why SunEnergy XT BK215?
Highlights:
Special feature: Enhance Module EV3600
The Enhance Module EV3600 offers, besides the ability to charge an electric car and 2x Schuko sockets as emergency power sources, the additional option to charge the battery directly from the grid.
This is a particularly interesting option for dynamic electricity tariffs such as Tibber. Usually, electricity prices are significantly cheaper at night or for 2-3 hours in the late afternoon. Fluctuations of more than 20 cents/kWh or more on the same day are not uncommon. With the EV3600, you can charge grid electricity at low-cost times and use it exactly when the electricity price rises again.
Charging an electric car is possible up to a power of 3.68 kW from battery/solar power (single-phase). In mixed operation with 3-phase grid power, up to 11 kW is possible. Provided that battery charge and/or fed-in solar power are sufficient, about 1/3 of the electricity is drawn from the battery or solar in 3-phase operation, with the remaining 2/3 coming from the public power grid.