The SunEnergyXT BK215 main storage unit is an advanced and scalable system for balcony power plants. With a capacity of 2.15 kWh, it stores excess solar power and increases self-consumption to up to 90%. Thanks to its expandability and robust design, the BK215 is suitable for both indoor and outdoor use. It offers easy installation and user-friendly app control.
What makes the SunEnergyXT BK215 stand out?
The SunEnergyXT BK215 main storage unit is characterized by its high flexibility and durable performance. Equipped with LiFePO4 batteries, which allow for more than 8000 charging cycles, and two MPPT trackers, it optimizes power generation and storage. The compact design (47.9 x 28.9 x 26.1 cm, 32.5 kg) and IP65 weather resistance make it particularly suitable for use on balconies and terraces. In addition, it offers a heating function that ensures operation at temperatures from -20 °C to +40 °C. With four solar cable connections and the bypass function, it offers even more flexibility.
Technical specifications of the BK215:
| Feature | Details |
|---|---|
| Capacity | 2.15 kWh |
| Output Power | Max. 1920 W |
| PV Input | Max. 1600 W (2x 800 W) |
| Protection Class | IP65 (with base) |
| Cycles | 8000+ (20-80% DoD) |
| Expansion | Up to 3x B215 (8.6 kWh) |
How does the BK215 main storage unit work?
The SunEnergyXT BK215 stores excess solar power using MPPT controllers and releases it via outputs as needed. Self-consumption is prioritized, while excess power can be fed into the grid. The system is designed so that the solar panels charge the storage unit during the day, and it then supplies household appliances in the evening or when needed. The Battery Management System (BMS) protects against overcharging, deep discharge, and temperature problems. The BK215 is compatible with bidirectional inverters such as the EV3600, and the SunEnergyXT app allows for remote control of charging and discharging cycles.
How to install the SunEnergyXT BK215?
Installation of the BK215 is straightforward and follows a plug-and-play process. First, the solar modules are connected to the PV inputs of the storage unit, and the inverter to the outputs. Then, the system is connected to the grid. With the base plate, you can easily set up the system and expand it with additional B215 modules if needed. A special setup for WLAN and Bluetooth is possible via the DRBO Greenenergy app, allowing for effortless control.
What advantages does the BK215 offer for balcony power plants?
The biggest advantage of the BK215 is the increase in self-consumption, which rises from 30-40% to up to 90%. This allows households to save up to €350 in annual electricity costs. The storage unit enables continuous use of the generated solar power and provides emergency power in the event of an outage. Furthermore, the IP65 protection ensures high resistance to weathering. DRBO Greenenergy's app integration optimizes yield and ensures that the system always operates efficiently.
Savings comparison with/without storage (2 kWp system):
| Scenario | Self-consumption | Annual savings | Amortization |
|---|---|---|---|
| Without storage | 64% | €252 | 2 years |
| With BK215 | 91% | €358 | 5 years |
Can the BK215 be expanded and scaled?
Yes, the BK215 is a modular system that can be expanded by up to three B215 modules, allowing for a maximum capacity of 8.6 kWh. Each expansion module adds 2.15 kWh and an additional MPPT tracker to the system. This is particularly advantageous for households with growing energy needs. DRBO Greenenergy offers corresponding expansions and accessories to adapt the system to specific requirements.
Why is the SunEnergyXT BK215 financially worthwhile?
The SunEnergyXT BK215 has an acquisition cost of €1000-€1500 and saves €300-€400 in electricity costs annually. This means the system pays for itself in approximately 4 years with an average use of 800 kWh. Rising electricity prices further increase the profitability of the system. Its long lifespan of over 10 years and potential subsidies make it a long-term economic investment.
Is the BK215 app-controlled and smart?
Yes, the BK215 is compatible with the SunEnergyXT App, which allows for real-time monitoring of the system's status and adjustment of settings. The app supports remote control of charging and discharging cycles and automatically optimizes yield. Additional features such as boost mode and integration with Shelly technologies make the BK215 a flexible and intelligent energy storage unit.
DRBO Greenenergy Expert Opinions
"At DRBO Greenenergy, we drive the decentralized energy transition. The SunEnergyXT BK215 as SunLit storage option impresses with its scalability and robustness. Our customers – from tenants to businesses – benefit from easy installation and up to 90% self-consumption. With IP65, heating function and app control, it is ideal for balconies and terraces. We deliver quality from B2B expertise to private customers: Sustainable, efficient and future-proof."
– Expert at DRBO Greenenergy
When and where is the BK215 best suited?
The SunEnergyXT BK215 is best suited for sunny balconies and terraces where electricity consumption primarily occurs in the evenings. With an operating temperature range of -20 °C to +40 °C, it can be used both indoors and outdoors. It is particularly suitable for households with an annual electricity consumption of 3000 kWh, but less effective in shaded north-facing areas. DRBO Greenenergy is happy to advise customers on optimal locations and installation packages.
Conclusion and Next Steps
The SunEnergyXT BK215 main storage unit is a cost-effective and scalable solution for balcony power plants. With its expandability, smart app control, and high weather resistance, it offers a sustainable way to maximize self-consumption and reduce energy costs. Start today with a basic set from DRBO Greenenergy and expand the system as needed. Also, check for available subsidies and utilize the plug-and-play technology for easy installation.
Frequently Asked Questions (FAQs)
How much power does the BK215 store?
The SunEnergyXT BK215 stores up to 2.15 kWh and can be expanded to a maximum capacity of 8.6 kWh.
Do I need an electrician?
No, the system is plug-and-play and does not require professional installation. However, ensure proper grounding.
Is it weather-resistant?
Yes, the BK215 has an IP65 protection rating, making it suitable for outdoor use.
Compatible with which modules?
The system is compatible with up to four 400 Wp solar modules, and MPPT technology ensures efficient power generation.
How long does the battery last?
The BK215 battery has a lifespan of over 10 years and lasts for more than 8000 charging cycles.
Some of the information in this article is from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.