The Marstek Venus A is a premium, all-in-one balcony energy storage system (ESS) designed to turn small PV installations into a smarter self-consumption solution. With LiFePO₄ battery chemistry for long service life, IP65 outdoor protection, and 4 independent MPPT inputs for flexible panel layouts, Venus A is ideal for modern homes that want to store surplus solar energy and use it when it matters most—day or night.

A built-in AI optimization function helps the system manage charging and discharging more intelligently (depending on configuration and usage), aiming to maximize self-consumption and improve real-world yield from your balcony PV setup.

Why choose Marstek Venus A

• All-in-One balcony ESS: compact, integrated solution for storing PV energy and increasing self-use

• Safe & durable LiFePO₄: stable chemistry suited for daily cycling and long-term use

• 4× MPPT flexibility: connect multiple PV strings/orientations to harvest more energy across varying sunlight conditions

• Outdoor-ready (IP65): suitable for sheltered outdoor mounting where protection against dust and water is required

• AI-based optimization: supports smarter energy management for improved usability and efficiency

Monitoring & metering (included / selectable)

To enable accurate measurement and smart energy control, the following is provided:

• Smart Meter P1 (typically for NL & BE): standard included

• CT002 clamp sensor: standard included

Important: Customers must select the correct smart meter option for their installation/country. The required meter depends on your grid connection and metering standard—choose the suitable smart meter for your selection/package to ensure proper monitoring and system control.

Scalable package options (Master + Slave modules)

We offer Venus A in expandable sets, so customers can start small and scale storage as needed:

• 1× Master + 1× Slave = 4.24 kWh total

• 1× Master + 2× Slaves = 6.36 kWh total

• 1× Master + 3× Slaves = 8.48 kWh total

• 1× Master + 4× Slaves = 10.60 kWh total

• 1× Master + 5× Slaves = 12.72 kWh total (maximum)

This modular approach keeps the investment future-proof: upgrade capacity later without replacing the entire system.

Ideal for

• Balcony PV / small residential PV expansions

• Apartments and homes aiming to increase self-consumption

• Users who want scalable storage with flexible PV input options

Note: Package contents can vary by set. Always verify local regulations and installation requirements for balcony PV and energy storage systems.