Germany Sets 2026 Rules for Small‑Scale Balcony Solar Installations

Starting in 2026, Germany will apply simplified rules for balcony‑mounted photovoltaic systems (Balkonkraftwerke). The inverter power is capped at 800 W and module capacity at 2 kW for streamlined registration in the market‑stammdatenregister of the Federal Network Agency. Installations in rental or owners’‑association properties require landlord or association permission, and the VDE technical standards published in December 2025 guide safe connection and operation. For installations exceeding 2 kW, a direct application to the grid operator is required and older meters may be replaced with digital ones.

In parallel, a DIY guide shows how gardeners can power small greenhouses with self‑built solar panels. Expert Burkhard Bohne outlines energy needs for various greenhouse sizes, ranging from 200 Wh to several kWh per day, and advises on appropriate panel and battery sizing. The guide highlights that full autarky is often unrealistic, but partial solar supply can reduce grid consumption for heating, lighting, and ventilation.