Is the SunEnergyXT BK215 the best balcony storage system?

Article published at: Nov 27, 2025

The SunEnergyXT BK215 is a powerful balcony storage system with a capacity of 2150 Wh, ideal for tenants and homeowners. With IP65 certification, app monitoring, and expandability up to 8.6 kWh, it offers an efficient way to store solar power. It is compatible with common inverters and allows for easy installation without an electrician, making it a practical solution for the decentralized energy transition.

What is the SunEnergyXT BK215 Savings Package 01?

The Savings Package 01 includes the SunEnergyXT BK215 with 2150 Wh storage capacity, two 430 Wp solar modules, and all necessary connection cables. It stores surplus solar energy for continuous use and enables efficient use of solar power around the clock. Especially suitable for tenants and homeowners, the system can be easily installed thanks to its plug-and-play function, without the need for an electrician.

DRBO Greenenergy offers this complete package with a 0% VAT financing option and free shipping. It maximizes self-consumption and reduces electricity costs, making it an attractive solution for anyone looking to increase their energy independence.

Technical Highlights at a Glance:

Feature Specification
Capacity 2150 Wh
PV Input 1600 W (2x MPPT)
Output 1920 W with bypass
Weight 32.5 kg
Protection IP65, BMS Heating

What are the advantages of the SunEnergyXT BK215?

The SunEnergyXT BK215 offers a high storage capacity of 2150 Wh and enables continuous power supply. It is particularly advantageous for households that want to efficiently store their solar energy, and offers high scalability, allowing users to expand their system as needed. With the option to add up to three additional storage units, the system can be expanded to a total capacity of 8.6 kWh, enabling optimal supply even for larger households.

In addition, the DRBO Greenenergy app offers real-time monitoring of energy production and storage, which helps users optimize power consumption and reduce their energy costs. The storage unit is also weatherproof and can be used both indoors and outdoors, making it particularly flexible.

  • High Capacity: 2150 Wh for all-day use.

  • Weatherproof: IP65 for balcony or garden.

  • Lightweight: Only 32.5 kg, easy to assemble.

  • Compatible: With common inverters like Deye or Hoymiles.

Is the SunEnergyXT BK215 easy to install?

Yes, the SunEnergyXT BK215 can be installed quickly and easily. The storage unit is simply connected via a protective contact plug and MC4 connectors, allowing for easy plug-and-play installation without an electrician. After installation, the system can be connected and configured via the app to monitor and optimize energy production in real time.

DRBO Greenenergy provides all necessary cables and a user manual, so installation can be carried out smoothly. In addition, the company offers competent support if questions or problems arise.

Step-by-step installation:

  1. Mount solar modules and connect them to the MPPT port with MC4 cables.

  2. Connect the storage unit to the household grid via a plug.

  3. Download the app, connect to Wi-Fi, and configure the inverter.

  4. Store and use surplus solar energy.

Which inverters is the SunEnergyXT BK215 compatible with?

The SunEnergyXT BK215 is compatible with a variety of inverters, including SunEnergyXT, Deye, Hoymiles (OpenDTU), TSUN, and APsystems. This flexibility allows users to easily integrate the storage unit into their existing solar system, regardless of which inverter they use.

With the ability to use different inverter types, the BK215 offers high compatibility and flexibility. The MPPT technology ensures that energy yield is optimized, increasing the efficiency of the entire solar system.

Inverter Compatibility Special Feature
SunEnergyXT Full Native App
Deye Full High power
Hoymiles OpenDTU Microinverter
TSUN Full String inverter
APsystems Full Multi-module

Can the SunEnergyXT BK215 be expanded?

Yes, the SunEnergyXT BK215 can be easily expanded. With the option to add up to three additional storage units, the total capacity can be expanded to up to 8.6 kWh. This allows for a customizable solution that can be scaled as needed.

The modular system from DRBO Greenenergy makes it easy to expand the balcony power plant later without incurring additional installation costs. Expansion is simply done by stacking the additional storage units and connecting them via cable.

Why is the SunEnergyXT BK215 weatherproof and suitable for everyday use?

The SunEnergyXT BK215 is equipped with an IP65 certification, which protects it from dust, rain, and cold. This means that the storage unit can be used without problems both indoors and outdoors. Thanks to the integrated BMS with heating, the storage unit also functions at low temperatures, ensuring a reliable energy supply.

The robust design and low weight of 32.5 kg make the storage unit ideal for use on balconies or terraces. Even in extreme weather conditions, the storage unit remains reliable and efficient.

How do you save money with the SunEnergyXT BK215?

The SunEnergyXT BK215 helps you significantly reduce your electricity costs by storing surplus solar energy and making it available for later use. With self-consumption of approximately 2000 kWh per year, households can save between €400 and €600 annually on electricity costs. The amortization of the system typically occurs within 2 to 3 years, making it a worthwhile investment for the future.

Customers can also benefit from 0% financing and a special price of €999 (instead of €1199). With free delivery and the option to gradually expand the system, long-term use becomes even more affordable.

DRBO Greenenergy Expert Opinions

"At DRBO Greenenergy, we drive the decentralized energy transition forward – with products like the SunEnergyXT BK215, which makes tenants and owners energy independent. Our SunLit Energy Storage options offer top quality, easy installation, and scalable performance. Customers praise our advice (4.6/5 Trustpilot) and fair prices. Whether B2B for installers or B2C: we make solar accessible."
– DRBO Greenenergy Expert (approx. 120 words)

DRBO Greenenergy supplies hardware stores, dealers, and private customers with balcony power plants, storage units, and accessories. Focus on sustainability and DIY solutions.

Conclusion: Act now for your energy transition

The SunEnergyXT BK215 revolutionizes balcony power plants with 2150 Wh storage, expandability, and app control. Buy the Savings Package 01 from DRBO Greenenergy for €999 – benefit from 0% VAT, financing, and shipping. Start today: mount the module, store, save. Expand later, become independent. Contact DRBO Greenenergy for advice!

Frequently Asked Questions (FAQs)

Is the SunEnergyXT BK215 suitable for tenants?
Yes, the SunEnergyXT BK215 is ideal for tenants as it can be installed without drilling or permits.

How long does the battery last?
The battery consists of LFP cells and offers over 6000 charging cycles, which corresponds to a lifespan of more than 10 years with daily use.

Do I need an app?
Yes, the SunEnergyXT app is required for real-time system monitoring, which works via Wi-Fi or Bluetooth.

Can I finance with DRBO Greenenergy?
Yes, DRBO Greenenergy offers 0% financing for purchases up to €2500.

How heavy is the package?
The package weighs a total of 32.5 kg for the storage unit and solar modules. Shipping is conveniently done by freight forwarder with an appointment.

Share