Marstek Venus G
500V V-Boost stackable 5 kW AC-coupled ESS
Max. 30 kWh capacity
Expandable storage, suitable for large, modern homes.
Ultra-fast backup
Switches within 10 ms during power outages.
5 kW power
Powerful output for high-demand household appliances.
97% efficiency
500V V-Boost architecture minimizes losses and maintains peak efficiency of 97%.
A powerful 5 kW AC-coupled energy storage system (ESS) with a professional 500V V-Boost high-voltage architecture. It delivers >97% efficiency and ultra-fast backup switching (<10 ms). The system is expandable and supports up to 30 kWh of storage capacity.
A DC-DC boost circuit stabilizes underperforming cells, ensuring consistent power delivery and extending battery lifespan.
Sets a high standard for reliability with an EPS switching time of <10 ms, keeping even sensitive devices running without interruption during outages.
Designed for scalable energy storage from 5–30 kWh, supporting up to 6 units so capacity can easily grow with energy demand.
With a battery-to-AC conversion efficiency of over 97%, more stored energy is effectively utilized, delivering better performance than standard systems.
Key specifications
The Marstek VENUS-G delivers high AC output ranging from 3.6 kW to 5.0 kW. It utilizes 500V V-Boost technology to minimize energy loss and maintain cell stability across up to six stacked units. The system is highly scalable, with a maximum capacity of 30 kWh.
It features a leading EPS switching time of less than 10 ms and a superior >97% round-trip efficiency (RTE). The IP65-rated unit is built for durability and operates reliably in temperatures from -20°C to 55°C. Advanced monitoring is available via Bluetooth, Wi-Fi, and Ethernet, with MODBus support for precise local energy management.
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Who is it for
Partner in
energy storage
As an importer and specialist in energy storage, we provide not only reliable products, but also the service and expertise to support you. With MW Energie, you choose quality, continuity, and a partner who thinks along with you.
Learn more about the Marstek Venus G
Power
Delivers robust AC output between 3.6 kW and 5.0 kW.
Industry-leading efficiency of over 97%.
Uses V-Boost technology for consistent performance across all modules.
Storage Capacity
Achieves a maximum tower capacity of 30 kWh.
Stabilizes weaker cells, reduces voltage imbalance, and unlocks more usable energy.
Easily stack up to 6 units for growing energy needs.
Design
Provides 5 kW AC coupling for permanent use.
Dust- and water-resistant for reliable outdoor installation.
Operates effectively in temperatures from -20°C to 55°C.
Smart Control
AI-driven algorithms optimize power distribution for maximum self-use and cost savings.
Built-in Wi-Fi, Ethernet, Bluetooth, and RS-485 for real-time monitoring and cloud management.
Full Modbus RTU support for precise synchronization with smart meters and external EMS systems.
Reliability
Responds within 10 ms during power outages.
Local control via Bluetooth without internet.
Designed for a 15-year lifespan with a 10-year warranty.
The 4 guarantees of MW Energie
40+ years of experience in energy solutions
our products
We only supply products from brands that have proven their quality. Always with a clear manufacturer’s warranty, so you can invest with confidence.
Whether you are a dealer or an end user, our support team is ready to assist with advice, installation questions, and solutions. Fast, knowledgeable, and personal.
We keep our products in stock ourselves. This allows us to deliver quickly, so you are never dependent on long lead times or uncertain availability.
Our work doesn’t stop after delivery. We remain involved for maintenance, updates, and guidance, ensuring that you and your customers can rely on ongoing support.
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