Balcony and microinverter kits, the ones that go in with no building work: Hoymiles kits of 1800W and 1880W with the HMS-1600 and HMS-1600-4T, a three-phase version with the HMT-2000-4T, the DTU-Lite-S for monitoring, and Growatt kits of 900Wp with the NEO 800M-X microinverter and NOAH 2000 storage expandable from 2 to 8.2kWh.
In Italy systems up to 800W of export fall under the simplified regime: the microinverter caps output at that threshold even with more panels connected, so you gain production in the marginal hours without exceeding the limit.
Check the fixing to the railing and the wind load on the exposed surface.
