Collection: Balcony Solar & Retrofit Batteries

Balcony and retrofit storage: Marstek Venus A systems of 2.12kWh with four built-in MPPTs, Venus X of 10kWh and 6kW AC-coupled, Venus E Mini of 2kWh for wall mounting and Venus E 3.0 of 5.12kWh, all with LiFePO4 cells and installation with no electrical work.

Retrofit is the quickest way to lift self-consumption on a system already running: the battery connects on the AC side, after the existing inverter, and needs no work on the strings and no new grid paperwork. Anyone starting from scratch can instead choose the models with built-in MPPT, which take the panels directly.

With an energy meter the system follows what the house actually uses and keeps exports down. Modular expansion as the need grows.