Balcony solar systems in Walldorf

Balcony solar systems in Walldorf: funding and application

Overview

Balcony solar systems are small photovoltaic systems for plug sockets. They are also known as plug-in solar devices or mini PV systems. The City of Walldorf funds plug-in solar systems through its Stecker-Solaranlage funding guideline.

Funding in Walldorf

Eligible applicants are property owners or holders of heritable building rights. Tenants additionally require the owner's declaration of consent. There is a one-off grant per property or building unit.

The application is submitted only after purchase and installation. Required documents are the original invoice, photographic proof of the installed system and the registration confirmation from the Marktstammdatenregister. Submit these documents within six weeks of the invoice date. Applications are submitted electronically.

The current funding guideline applies from 1 January 2026 to 31 December 2027.

Application form and guideline: walldorf.de, Stecker-Solaranlage

Local providers

State and federal funding

Baden-Württemberg does not have its own state programme for balcony power plants. Since January 2023, the zero VAT rate has applied nationwide to private photovoltaic systems. The technical rules and registration requirement in the Marktstammdatenregister apply uniformly across Germany. Details can be found in the basic document Balcony power plants in Germany.

Tenants' rights

Under § 554 BGB, tenants are entitled to install a plug-in solar device. Landlords may not impose a blanket ban on installation. They may set reasonable conditions, for example regarding the type of mounting. To receive municipal funding, tenants also need the owner's written consent.

Registration with the grid operator

The grid operator in Walldorf is Stadtwerke Walldorf GmbH & Co. KG. Since Solarpaket I, separate registration with the grid operator is no longer required. The grid operator receives the information automatically via the Marktstammdatenregister.

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