Balcony kits with storage, where the battery stops you handing the midday production to the grid: Growatt kits of 900Wp with the NEO 800M-X microinverter and a NOAH 2000 battery expandable from 2 to 8.2kWh, and Anker SOLIX 3 kits of 1800W with E2700 storage and a BP2700 module for 5.38kWh in total, energy meter included.
The energy meter is the part that makes storage worth having on a balcony solar system: it reads what the meter is importing and discharges only as much as needed, instead of exporting at a poor tariff.
These are plug-in systems: into a dedicated socket, managed from an app, with no work on the consumer unit.
