Overview

• ACTEC is selling a Quattro set with the Growatt NEXA 2000 and four Trina Vertex S+ modules for €1,211 plus shipping, roughly €200 below comparable Anker bundles, according to current price checks.
• Anker Solarbank 3 E2700 Pro bundles are being promoted at €1,359 with four 450‑watt panels via a PC‑WELT offer and at €1,399 by Kleines Kraftwerk, with 2.688 kWh storage, four MPPTs and support for up to eight modules.
• Growatt’s NEXA 2000 features 2.048 kWh expandable to about 8.192 kWh, four independent MPPT inputs, IP66 weatherproofing, Time‑of‑Use optimization and an off‑grid backup function with an integrated inverter.
• Germany counts over one million registered mini‑PV systems, and the government’s Solarpaket 1 eased registration and enabled 2 kW four‑panel configurations that pair with modular storage to raise self‑consumption.
• Flexible TOPCon ‘Flexi’ panels from Kleines Kraftwerk offer a lightweight option at 4.5 kg per 225‑watt module with IP67 protection for small balconies or mobile use, with sets available and optional storage pairing.