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MARSTEK VENUS X 6kW / 10kWh All-in-One AC-Coupled Energy Storage System

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€ 2.695,00

-€ 798,31

Vanaf € 1.896,69
  • 1x Smart Meter (install) CT002
  • 1x Smart Meter Reader *(P1 & IR) CT003
  • I already have a working Marstek communications meter.

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Data sheet

Manufacturing number MST-VENUS-X-6.0KSP
Made in China
Special freight Yes
Extra heavy Yes
Product warranty 10 Years

More info

MARSTEK VENUS X 6kW / 10kWh All-in-One AC-Coupled Energy Storage System

The MARSTEK VENUS X 6kW / 10kWh is a powerful all-in-one AC-coupled energy storage system designed for residential energy storage, solar self-consumption and whole-home backup applications.

Combining a 10 kWh LiFePO₄ battery, 6 kW bidirectional charging and discharging, intelligent energy management and extensive connectivity in one compact system, the VENUS X provides a flexible solution for both new and existing residential solar installations.

Thanks to its AC-coupled architecture, the VENUS X can be integrated with an existing PV system without replacing the existing solar inverter. MARSTEK specifies support for up to 6 kW AC PV integration, making the system particularly suitable for upgrading existing photovoltaic installations with battery storage. MARSTEK_VENUS_X-PPT-EN

Important: This product listing is exclusively for the MARSTEK VENUS X 6 kW / 10 kWh version.

All-in-One 10 kWh Energy Storage

At the heart of the VENUS X is a 10 kWh LiFePO₄ (LFP) battery with a specified 90% depth of discharge (DoD) and more than 6,000 life cycles at 25°C.

The system provides up to 6 kW charging and 6 kW discharging power, allowing stored solar energy or lower-cost grid electricity to be used when household demand or electricity prices are higher.

MARSTEK specifies a 10-year warranty and an expected battery lifespan of 15 years for the VENUS X. MARSTEK_VENUS_X-PPT-EN

6 kW Bidirectional AC-Coupled System

The VENUS X supports 6 kW bidirectional grid-connected operation, enabling high-power charging and discharging. MARSTEK_VENUS_X-PPT-EN

Its AC-coupled design allows the unit to work alongside an existing solar installation. MARSTEK specifies:

  • 6 kVA AC PV input
  • 7.5 kVA AC input
  • 6 kVA AC output
  • 230 V single-phase operation
  • 50/60 Hz grid frequency
  • Maximum battery charge power: 6 kW
  • Maximum battery discharge power: 6 kW

Whole-Home Backup with EPS

In addition to grid-connected energy storage, the VENUS X provides an EPS (Emergency Power Supply) backup function for maintaining household power during a grid outage.

The system delivers 6 kW nominal backup power and up to 12 kW peak backup power, with MARSTEK specifying a switchover time of less than 10 ms. Professional electrician installation is required for the whole-home backup configuration. MARSTEK_VENUS_X-PPT-EN

Smart Solar Self-Consumption

The VENUS X can store surplus solar electricity instead of exporting it immediately to the grid. The stored energy can then be used later when solar production is insufficient or household consumption increases.

Combined with a compatible smart meter, the system supports self-consumption and anti-feed-in functionality, providing greater control over how locally generated solar energy is used. MARSTEK_VENUS_X-PPT-EN

Intelligent Energy Management

MARSTEK VENUS X supports intelligent energy management including AI optimisation and Time-of-Use (TOU) management. This allows the system to manage charging and discharging according to energy usage and electricity tariff periods, helping users make more effective use of stored energy. MARSTEK_VENUS_X-PPT-EN

MARSTEK App & Extensive Connectivity

Through the MARSTEK App, users can monitor and control the energy storage system in real time.

VENUS X supports Wi-Fi, Bluetooth, Ethernet and RS485 communication. MARSTEK also specifies an Open API with support for integration with third-party Energy Management Systems (EMS), providing additional possibilities for advanced energy management applications. MARSTEK_VENUS_X-PPT-EN

Expandable from 10 kWh up to 60 kWh

The standard VENUS X main unit provides 10 kWh of energy storage. For installations requiring greater capacity, MARSTEK has designed the system for expansion with up to five additional battery packs, allowing a total storage capacity of up to 60 kWh. MARSTEK_VENUS_X-PPT-EN

Please note: This listing is for the 10 kWh main unit only. Additional expansion batteries are not included unless explicitly stated otherwise.

Designed for Indoor & Outdoor Installation

With an IP65 protection rating, natural cooling and a specified operating temperature range from -20°C to +55°C, the VENUS X is designed for flexible residential installation.

Its natural cooling design also contributes to quiet operation, with MARSTEK specifying a noise level of less than 30 dB.

Key Features

  • MARSTEK VENUS X – 6 kW / 10 kWh version
  • All-in-One AC-coupled residential energy storage system
  • 10 kWh LiFePO₄ (LFP) battery
  • 6 kW nominal AC output
  • 6 kW maximum charging power
  • 6 kW maximum discharging power
  • Up to 6 kW AC PV integration
  • 6 kW EPS backup output
  • Up to 12 kW peak backup power
  • <10 ms EPS switchover
  • 90% Depth of Discharge (DoD)
  • More than 6,000 battery cycles
  • Expandable from 10 kWh to 60 kWh
  • MARSTEK App with real-time monitoring and control
  • Wi-Fi, Bluetooth, Ethernet and RS485
  • Open API and third-party EMS integration support
  • Smart-meter support for self-consumption and anti-feed-in
  • AI optimisation and Time-of-Use management
  • IP65 protection rating
  • Natural cooling
  • Noise level <30 dB
  • 10-year manufacturer-specified warranty
  • 15-year specified battery lifespan

Technical Specifications – MARSTEK VENUS X 6kW / 10kWh

SpecificationMARSTEK VENUS X
System type All-in-One AC-Coupled ESS
Battery capacity 10 kWh
Battery chemistry LiFePO₄ (LFP)
Battery cycles >6,000 cycles at 25°C
Depth of Discharge 90%
AC PV nominal input 6 kVA
AC input 7.5 kVA
AC output 6 kVA
Backup output 6 kVA
Backup peak output 12 kVA
Nominal voltage 230 V
Grid frequency 50/60 Hz
Maximum charge power 6 kW
Maximum discharge power 6 kW
Battery-to-AC efficiency >94%
Protection rating IP65
Noise level <30 dB
Cooling Natural cooling
Communication Bluetooth / Wi-Fi / Ethernet / RS485
Operating temperature -20°C to +55°C
Dimensions 500 × 270 × 1127 mm
Weight 160 kg
Maximum altitude 2,000 m
Additional batteries Up to 5
Maximum total capacity 60 kWh

These specifications are taken from MARSTEK's VENUS X 6 kW / 10 kWh specification sheet supplied with the product documentation. MARSTEK_VENUS_X-PPT-EN

Product Certifications

According to MARSTEK, the VENUS X is specified with the following product certifications/standards:

IEC/EN 62109-1, IEC/EN 61000-6-1~4 Class B, EN 50549-1:2019, VDE 4105:2018 and UN38.3. MARSTEK_VENUS_X-PPT-EN

Important Product Information

This advertisement is exclusively for the MARSTEK VENUS X 6 kW / 10 kWh model.

Any references to additional batteries or a maximum 60 kWh system capacity describe the expansion possibilities of the VENUS X platform. Additional battery modules are not included with this 10 kWh system unless specifically mentioned in the product contents.

For installation involving grid connection, EPS/backup operation, distribution-board modifications or other fixed electrical work, installation must be carried out in accordance with applicable local electrical regulations and requirements.

CT003 Compatibility

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