Own your energy, own your future

Homeowners who want more energy independence

without re-wiring, or, an energy backup, to store low-cost energy for later use or store more energy from an existing solar installation, and expandable storage over time.

Prepare for the future with flexible AC-coupled storage technology

With 5 kWh usable capacity, the Venus E 4.0 provides longer backup time and greater daily energy shifting — well suited to medium and large households seeking true energy independence.

For homeowners who want full independence,

longer backup, with a full plug-and-play system that combines battery, inverter and EMS — without rewiring or replacing an existing solar inverter.

VENUS E MAX combines a high-capacity 10 kWh battery, inverter and EMS into one compact plug-in system. It is the easiest plug-in battery for PV retrofit: no rewiring, no inverter replacement, no hassle.

AI-driven energy optimisation

MARSTEK AI analyses electricity market data, household load patterns and weather forecasts to maximise solar self-consumption and cut electricity costs automatically.

Long-term reliability, ultra-quiet

Over 10,000 deep cycles from 314 Ah LFP cells, a 10-year warranty and up to 15-year design life. Operation under 30 dB keeps the home quiet day and night.

Households that want modular storage

they can grow over time — start small, expand as needs rise from 2.12 kWh up to 12.72 kWh, with full compatibility with existing solar systems.

Simple integration

The AC-coupled modular design makes adding capacity to existing solar installations effortless, with smart metering, backup power and app control built in.