The MARSTEK VENUS-A is a modular photovoltaic (PV) energy storage system that supports PV charging and AC coupling. It offers three operating modes: AI optimization mode, self-consumption mode, and manual mode.
It can be charged via PV modules and the power grid, providing households and the grid with a stable supply of electricity. At the same time, it serves as a reliable emergency power source in the event of power outages.
- 1.2 kW max output power (off-grid output)
- 800 W continuous power feed into the home grid
- Automatic switchover to emergency power supply in the event of a power outage
- Easy integration into existing PV systems.Basic module: 2.12kWh lithium battery (safe LFP technology)
- Expandable to up to 5 modules = 12.72 kWh
- Compatible with MARSTEK Smart Meter or Shelly 3EM
- 0 feed-in / power limitation / TOU tariff control via app control
- Real-time monitoring of generation, consumption, and battery status.
- IP65 protection class, suitable for indoor and outdoor use.
- Temperature range: -20/+60 °C
- Passive cooling, ideal for residential environments
- Dimensions 45 x 34 x 22 cm
- Weight ~26 kg
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