Today, a lithium battery energy storage system is becoming one of the most practical solutions for households seeking greater energy independence from the distribution grid and wanting to make the most of the benefits generated by their solar power plant. The low-voltage storage unit “IGLU Kadlu LVis designed for individual residential houses and small business properties, making it relevant both to private owners and small companies. In this article, we’ll take a detailed look at how this system works, what sets it apart in the market, and what you should consider before making a final purchasing decision.
Key takeaways
- A modern lithium battery energy storage system lets you store excess solar power produced during the day and use it efficiently during peak hours in the morning or evening.
- „IGLU Kadlu LV” is specially designed for households and the smaller commercial sector, ensuring easy integration with popular hybrid inverters.
- The modular system architecture allows you to easily tailor capacity to the building’s actual energy consumption needs and limited utility room space.
- IGLU Kadlu LV uses ultra-safe, long-lasting lithium iron phosphate (LiFePO4) technology supplied by leading global manufacturers (CATL).
- If expansion is planned in the future (for example, when purchasing an electric vehicle), the system can be scaled in stages by connecting modules in parallel.
In-depth overview of the IGLU Kadlu LV energy storage system
| Feature | Details | Practical benefits |
|---|---|---|
| Product category | Fully integrated low-voltage battery system | Fewer additional components and simpler installation |
| Applications | For single-family homes and small businesses | A universal solution for private customers and small businesses |
| Battery chemical composition | CATL LiFePO4 (lithium iron phosphate, LFP) | LFP technology is considered the safest, most resistant to ignition, and the most durable |
| Rated energy (capacity) | 10.24 kWh base module; available configurations: 15.36 kWh, 20.48 kWh, 25.60 kWh, and 30.72 kWh | Ability to precisely select capacity based on the building’s average daily consumption |
| Rated charge/discharge power | 5.12 kW | Allows covering a significant share of the load from standard household appliances simultaneously |
| System expansion | Up to 5 systems can be connected in parallel | Gives you the freedom to start with a smaller capacity and increase it as your needs grow |
| Communication interfaces | CAN, RS485, Wi‑Fi | Smooth data exchange with the inverter and remote monitoring in the app |
| Environmental protection and casing | IP54–65 protection rating | Greater flexibility in choosing a safe installation location in the technical room |
| Warranty period | 5-year product warranty and up to 10-year performance warranty | Investment security and assured long-term system operation |
How does a lithium battery energy storage system work?
A lithium battery energy storage system is an advanced electricity storage device that operates together with a solar power plant and a hybrid inverter. The system stores instantaneous surplus electricity generated by the sun (which would otherwise be fed into the grid or curtailed) and allows it to be used later, when the sun isn’t shining and household energy demand increases.
How does “IGLU Kadlu LV” work in practice together with a solar power plant?
The daily operating principle of the system is simple and focused on maximizing the consumption of self-produced energy. During the day, when the solar plant is generating at its peak and no one is at home, “IGLU Kadlu LV” charges automatically. In the evening, when the use of household appliances, a heat pump, or an EV charging station ramps up, the house uses free energy from the battery instead of buying expensive electricity from the grid.
“IGLU Kadlu LV” is offered in flexible modular configurations that start with a 10.24 kWh base block and can be expanded to 15.36 kWh, 20.48 kWh, 25.60 kWh, and 30.72 kWh. With a nominal charge and discharge power of 5.12 kW, this system easily handles everyday household demands.
Due to the integrated popular communication interfaces (CAN, RS485), it is important to align the technical parameters with your existing hybrid inverter before installing the system. A properly designed home energy system not only helps reduce electricity bills but also provides reliable backup power in the event of a grid outage (emergency).
Which technical criteria are the most important to pay attention to?
Here are the key parameters that determine the system’s safety and longevity:
- Battery chemistry: “IGLU Kadlu LV” uses lithium iron phosphate (LiFePO4) cells from the leading manufacturer CATL. This chemistry is currently recognized as the safest for stationary home storage, as it offers very high thermal stability and lacks the ignition risk typical of other types of lithium-ion batteries.
- Operating temperature: The operating ambient temperature range is clearly specified in the technical documents. The system can discharge at temperatures from -20 °C to +55 °C, but battery charging safely occurs strictly from 0 °C to +45 °C temperature. Also, under safety requirements, the unit must not be operated in environments where the temperature exceeds +40 °C. Therefore, in Lithuania’s climate, the battery is recommended to be installed in an insulated technical room or garage that maintains above-freezing temperatures and is protected from direct sunlight and moisture.
- Depth of Discharge (DoD) and cycles: The manufacturer’s declared 6,000-cycle count is achieved under laboratory test conditions. In everyday use, to maximize cell lifespan, the recommended depth of discharge (DoD) is 80 %. This ensures the battery will serve reliably for many years without significant capacity loss.
Why choose a modular and expandable system?
Modular architecture is a major advantage that lets you optimize initial investments. If your current electricity consumption is moderate, you can start with a basic 10.24 kWh module.
If in the future you decide to buy an electric vehicle, install a more powerful heat pump, or simply increase your solar plant’s capacity, you won’t need to purchase an entirely new system. “IGLU Kadlu LV” allows you to connect up to 5 modules in parallel, increasing the total system capacity and flexibly adapting to the growing needs of your family or small business.
Why choose solutions from the Lithuanian brand IGLU TECH?
IGLU TECH stands out for its engineering clarity and comprehensive support. When you purchase this manufacturer’s equipment, you get clear technical specifications and a reliable European warranty (5 years for the product and up to 10 years for cell performance). It’s important to stress that the ultimate benefit of the system depends on tailoring it to your specific site. Therefore, before buying any equipment, it’s always worth consulting certified specialists who will help assess compatibility with the inverter and choose the most suitable installation location.
Frequently Asked Questions
Can IGLU Kadlu LV be installed in an unheated garage?
The battery enclosure features a high protection rating, but charging is safe only at positive temperatures (from 0 °C to +45 °C). If the garage temperature drops below zero in winter, charging will be automatically halted to protect the cells. Therefore, it’s best to choose minimally heated or insulated rooms.
What does the LiFePO4 battery chemistry mean in practical terms?
This means the battery uses lithium iron phosphate. This technology is significantly safer than traditional lithium-ion (NMC) batteries because it does not overheat, is chemically stable, and offers roughly twice the lifespan (a higher number of cycles).
Can this system be connected to an existing solar power plant?
Yes, but your current inverter must support low-voltage (LV) battery connectivity. Before purchasing, you should verify that the inverter’s technical specifications are compatible with “Kadlu LV.”
How many years will this energy storage system last?
Under standard use (one charge and discharge cycle per day), a 6,000-cycle lifespan ensures reliable operation for about 15–20 years, after which the battery retains most of its original capacity.
Next step
If you want to increase your home’s energy efficiency and find out which capacity of the “IGLU Kadlu LV” system would best meet your needs, seek professional consultation. Specialists will help analyze your solar plant’s production data, match the equipment with your existing inverter, and prepare an optimal project proposal.
