MARSTEK VENUS-E3.0: Plug-in AC Battery Energy Storage System
Experience seamless energy management with the MARSTEK VENUS-E3.0 — a plug-and-play AC battery ESS that blends 800W/2.5kW on-grid power and 2.5kW backup power. Designed to integrate with existing solar systems, it delivers 100% self-consumption, AI-optimized cost savings, and whole-home backup, backed by reliable LFP cells and a 10-year warranty.
Core Product Advantages
Plug & Play Convenience: 3-wire Euro 16A plug for easy installation, no complex setup required.
100% Solar Compatibility: Works with existing solar systems, supporting anti feed-in and 100% self-consumption via smart meters (MARSTEK, Shelly, everHome, Homewizard).
AI-Optimized TOU Management: Reduces energy costs by intelligently adjusting charging/discharging based on time-of-use tariffs.
Flexible Backup Power: 2.5kVA rated backup power, 3.5kVA peak (10s), with a Euro 3-hole off-grid socket for critical loads.
Scalable Capacity: Single-phase up to 7.5kW/15.36kWh, three-phase up to 22.5kW/46.08kWh to meet home/business needs.
Durable & Smart: >6000 cycles, IP65 protection, natural cooling, and multiple communication interfaces (Wi-Fi, Bluetooth, Ethernet, RS-485).
Key Performance Metrics
Battery Capacity: 5.12kWh LiFePO4 (LFP) battery with 90% depth of discharge (DoD).
On-Grid Power: 800VA/2.5kVA rated output, >0.99 power factor, THDi <3%.
Backup Power: 2.5kVA rated, 3.5kVA peak (10s), THDu <3% for linear loads.
Efficiency: Maximum battery-to-AC efficiency >93.5%.
Cycle Life: >6000 cycles (25°C) for long-term reliability.
Perfect for homeowners with existing solar systems, those seeking emergency backup power, or anyone looking to optimize energy costs via TOU management. It integrates with external EMS via Open API/Modbus Protocol and supports whole-home backup when paired with MARSTEK SmartBox — ideal for areas with unstable grid power or high electricity tariffs.
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