With SUN-MASTER energy storage modules and the appropriate inverters, you become independent of rising energy costs. You gain planning security, save real money, and invest in a future-proof energy supply – a decision that combines comfort, economic efficiency, and sustainability.
The energy storage system that is simple and safe.
Ein Stromspeicher muss heute vor allem eines sein: einfach im Aufbau und sicher im Betrieb. Genau dafür wurden SUN-MASTER Speicher entwickelt – einfach. sicher.
The modular design without welded cells and with encapsulated electronics ensures maximum practicality. Repairs are possible without any problems even after years; individual components can be specifically replaced. The result: exceptionally high cost-effectiveness over the entire service life. At the same time, SUN-MASTER storage systems stand for maximum operational safety. The proven 48-volt low-voltage technology fundamentally reduces risks, while the LiFePO4 cells used ensure thermal stability and reliability.
The combination of 48-volt technology and LiFePO4 cells makes operation not only particularly safe but also pleasantly uncomplicated – simply safe. And best of all: even years after installation, the storage system can be expanded at any time with additional modules. This way, the capacity grows with your requirements – sustainable, economical, and future-proof.
Predictable Energy Costs
Reduce your dependence on price fluctuations in the electricity market.
Scalable with Your Energy Needs
Expand according to consumption and location.
Maximum Safety and Easy Installation
Plug & Play, LiFePO4 technology, and robust HPL casing.
Made in Europe: Economical and Durable
10-year warranty, no long waiting times for products and spare parts thanks to local production.
SUN-MASTER energy storage systems offer maximum operational reliability thanks to their constructive fail-safety – thus permanently securing investors’ returns.
Consulting
Individual, transparent and tailored to your requirements.
Customer service
Support with the expansion of existing PV systems as well as reliable repair and maintenance.
Our energy storage system is usually installed in a basement, cellar vault, or a
suitable storage room. For maximum safety – especially when multiple
modules are stacked on top of each other – our technicians perform a professional wall mounting.
The modules are delivered by freight forwarder or by our own team. Thanks to integrated rollers, they can be easily moved to the installation site, after which the rollers are removed. Alternatively, the modules can also be safely lifted using the integrated eyelet system. For stacking the energy storage modules, the eyelets can also be removed.
Our energy storage modules utilize particularly safe 48V technology. The installed LiFePO₄ cells are considered extremely reliable and, unlike conventional lithium-ion batteries, cannot self-ignite. This means for you: maximum safety with full performance.
In the front area of the storage system, where the electronics such as the BMS and wiring are located, our engineers have deliberately planned additional space. This ensures good ventilation and protects the components from overheating. At the same time, we remain flexible: In case of future adjustments – for example, due to new legal requirements or new state-of-the-art components – additional components can be easily integrated.
Generally, our energy storage systems are very durable and low-maintenance. Should a defect nevertheless occur, it usually affects the electronics – such as the BMS (Battery Management System) or the communication boards (RS485 / CAN-BUS). These components are exposed to greater stress than the actual LiFePO₄ cells, which are extremely robust and durable.
The typical spare part costs per module are:
BMS: €200–250
Communication Board: €250–300
LiFePO₄ Cell Unit: €150–200
Briefly explained:
BMS (Battery Management System): Monitors and protects the cells, ensures uniform charging and discharging.
RS485 / CAN-BUS: Enables communication between the storage system and the inverter and master module.
All components in the energy storage system are securely mounted and thus protected from vibrations. The stable aluminum frame provides additional stability, while the outer casing made of HPL panels offers particularly robust protection.
HPL (High Pressure Laminate) is a high-pressure laminate characterized by its extreme robustness: It is shock- and scratch-resistant, withstands moisture and UV radiation, and is flame-retardant (fire protection class B1). Thus, the internal components are reliably protected against external environmental influences such as heat, moisture, or mechanical stress – and the storage system remains operational long-term.
Thanks to the modular design, maximum operational reliability is thus ensured.
