Overview
- Retailers rolled out heavily discounted complete PV+storage bundles in mid‑May, with multiple 2 kW–4 kW kits offered for around €1,199–€1,829 including an integrated battery and smart meter.
- Product tests and buyer guides consistently recommend roughly 2–3 kWh of battery capacity for an 800 W feed‑in system so daytime surplus can be stored for evening use and raise self‑consumption.
- The Anker SOLIX Solarbank 3 E2700 Pro is repeatedly singled out as a market leader because it offers about 2.7 kWh per module, plug‑and‑play expandability to roughly 16 kWh, four MPPT inputs, an integrated inverter and a notstrom (backup) output.
- Current rules cap inverter feed‑in to the house grid at 800 W, so systems pack larger module totals but use smart meters and automatic limiting to avoid over‑feeding and to meet simplified plug‑and‑play installation rules.
- For households this means lower upfront cost and faster payback when storage raises self‑consumption from roughly 30–50% to about 70–90%, though vendor claims about peak annual yields and savings depend heavily on site, orientation and user behaviour.