Overview
- Last weekend major sellers and discounters promoted complete plug‑in PV plus storage bundles at steep prices, with advertised offers around €1,307 to €1,829.
- New kits pair higher‑power 480–500 W TopCon or bifacial modules with integrated inverters to raise kilowatt output per panel and boost annual yield on small roofs or balconies.
- Anker's SOLIX family is central to the trend: the SOLIX 3 and 4 units combine built‑in inverters, multiple MPPT inputs and plug‑and‑play battery expansion so users can grow capacity from a few kilowatt‑hours to well over 10 kWh.
- Editorial modelling shows upsizing from roughly 2 kW to 4 kW roughly doubles annual output (to about 4,000 kWh in the example) and shortens payback, while bundled storage increases self‑consumption and adds backup capability.
- German rules cap typical 'Balkonkraftwerk' module peak power at about 2,000 Wp and inverter feed‑in at 800 W, so buyers who install larger bundled kits will face the registration and technical requirements of full photovoltaic installations.