Marstek Venus E 3.0: a domestic battery to recover excess solar power to plug into a simple socket

Marstek wants to make it easier to store solar energy at home. The brand specializing in photovoltaic batteries is launching Venus E 3.0, a model designed to absorb the surplus produced by the panels during the day and then return it in the evening, when needs increase. Special feature: the device does not require any modification to the existing installation or replacement of the inverter. All you need is a connection to a 230 V socket to put the system into service, making it accessible to already equipped homes or balcony installations.

Compatible with the majority of smart meters, the Venus E 3.0 avoids any injection of electricity into the public network. The excess energy produced is thus entirely consumed on site, which meets the expectations of users wishing to optimize their installation without undertaking additional work.

The battery also relies on intelligent management. Its “AI Optimization” mode continuously analyzes several parameters such as consumption habits, the price of electricity or the weather in order to automatically program the charging and discharging phases. The objective: to increase energy savings by storing at the right time and releasing when the cost per kilowatt hour is highest. More experienced users can, however, switch to manual mode and define the charging ranges and powers themselves.

With a capacity of 5.12 kWh, the Venus E 3.0 is based on LFP (Lithium Iron Phosphate) cells, a technology chosen for its stability and longevity. Marstek announces more than 6000 cycles, or around 15 years of use in a household. The manufacturer presents it as a solution suitable for different environments, from the garage to an outdoor installation.