Overview
- New rules allow plug-in balcony systems to use up to 7 kWp of solar panels, yet inverters and batteries may feed only 800 watts into the home grid.
- Bigger setups trigger extra steps, since systems from 2 kWp must be reported to the grid operator and any build above 7 kWp needs a smart meter gateway.
- Retailers now push eight-panel 4,000-watt kits with modular LiFePO4 storage and four MPP trackers, with Growatt NEXA 2000 packages in stock at ACTEC starting near €1,150.
- Deal trackers flag steep cuts on add-on batteries and bundles, including the Growatt NOAH 2000 listed around €395 and Anker Solarbank 3 Pro sets advertised from about €1,079 to €1,399.
- Guides and tests find that adding a battery raises self-use and can trim payback to roughly two to four years, yet per-device PV input limits and the 800-watt socket cap keep most buyers in the 1–4 kWp range for now.