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.
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.
A major advantage of our energy storage system is that the energy storage modules are highly scalable. We deliberately developed a single storage module that is both cost-effective to produce and can be combined almost infinitely to form large storage systems.
For example, two modules can be easily stacked – 30 kWh or 300 kWh in a minimal footprint.
Battery Management System (BMS)
Monitors and protects the cells, ensuring even charging and discharging.
The SUN-MASTER energy storage module features an active balancer. In short: it ensures that your SUN-MASTER storage system has a particularly long service life and that your project is supplied with high performance over the long term.
Communication Hub
SUN-MASTER storage units communicate with the inverter via RS-485 or CAN-BUS.
In addition, the individual modules also exchange information with each other. The master module then transmits all relevant data to the inverter.
The result: All modules connected to a storage unit operate as a single large module – perfectly coordinated.
Airspace for Future Adaptations and Protection
In the front area of the storage unit, where electronics such as the BMS and wiring are located, our engineers have deliberately planned additional space. For future adaptations – for example, due to new legal requirements or new “state-of-the-art” components – additional components can be easily integrated. Additionally, good ventilation is ensured, and the components are protected from overheating.
Use of LiFePO4 cells (48V technology)
The energy storage modules utilise a particularly safe 48V technology. The built-in LiFePO4 cells are considered extremely reliable and, unlike conventional lithium-ion batteries, cannot spontaneously combust. For you, this means maximum safety combined with full performance.
SUN-MASTER energy storage systems offer maximum operational reliability thanks to their constructive fail-safety – thus permanently securing investors’ returns.
Technical Data Sheet: Energy Storage Module
Detailed technical specifications, performance figures and system information.
Product information: Energy storage module
An explanation of the key features of the energy storage module.
A comparison: low-voltage versus high-voltage
A clear comparison of our low-voltage system with high-voltage systems.
Today, an energy storage system must be one thing above all else: easy to install and safe to operate. That is exactly why SUN-MASTER energy storage systems were developed.
Plug & Play, as well as a range of connection options in combination with other renewable energy sources (PV, heat pumps, wind power, and many more)
Easy installation and maintenance by a qualified electrician.
Quickly operational again thanks to available spare parts.
Existing modules can be added indefinitely as needed.
Resilient system; failure of one module does not lead to the failure of the entire storage system; B1 for reliable protection against external influences.
No long waiting times for products and spare parts thanks to local production.
Modular design is expandable with new technology.
LiFePO4 cells inside, HPL panels in the outer construction.
Energy Storage
MULTISTORAGE HUB
Inverter
solar carport
Commorcial Carports
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.
Fundamentally, our energy storage systems are very durable and low-maintenance. However, if a malfunction does occur, the failure is usually attributable to the electronics—specifically the BMS (Battery Management System) or the communication interfaces (RS485 / CAN bus). These components are subjected to greater stress than the actual LiFePO₄ cells, which are extremely robust and long-lasting.
The typical spare part costs per module are approximately:
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.
