Overview

• Official data from the Bundesnetzagentur confirm over one million plug-and-play balcony PV systems registered nationwide by June 2025.
• North Rhine-Westphalia accounts for more than 200,000 of these installations, doubling its total in just over a year.
• A recent survey finds that about half of balkonkraftwerk owners now integrate battery storage to capture surplus solar power for later use.
• New AC-coupled products such as the 2,300 W EcoFlow STREAM Ultra and the modular Maxxicharge V2 enable users to bypass the 800 W grid limit and boost self-consumption.
• Industry analysts from Enervis forecast that PV market values could fall to approximately 3.7 ct/kWh by 2028 due to oversupply and cannibalization effects.