Jump to content
30. April 2026

"Solar heating"

PART 10 of the info series on solar energy

The new Building Energy Act stipulates that from 2024, heating systems installed in new buildings must be powered by at least 65% renewable energy. For new heating systems in existing buildings, longer transitional periods apply, which are linked to municipal heat planning. Many people are therefore asking themselves the question "How can I heat with the sun?" and "What options are worthwhile for me personally?".

In Part 10 of the independent and comprehensive online information session on Wednesday, May 6, 2026, from 6:00 p.m. to 7:30 p.m., a detailed overview of solar heating will be provided. The key requirements of the Building Energy Act (GEG) will be explained, and the options for meeting these legal requirements using solar energy will be highlighted. Various heating technologies—such as heat pumps, solar thermal systems, photovoltaic modules, heating elements, and air conditioning units—will be introduced, and practical experiences with operating a heat pump using a PV system will be shared. Finally, funding programs will be presented. 

This practical presentation is supplemented by case studies and provides an opportunity to ask questions directly to the experts, so that you can then take the next steps toward installing your own solar heating system.

The event is part of the “Solar and Heat” online seminar series. 

“Although we usually think of green electricity when it comes to the energy transition, heat production accounts for a large portion of local energy consumption. That’s why the transition to renewable energy is also necessary in the heating sector. This transformation is going very well, alongside the installation of solar systems,” says Janina Steinkrüger, Head of the Environmental Department, looking forward to the tenth event in the “Solar” online seminar series. 

The information series is organized by climate protection managers in collaboration with adult education centers and the consumer advice center in the Rheinhessen-Nahe and Vorderpfalz regions. 

For more information on registration and the solar initiative of the state capital of Mainz, visit: www.mainz.de/solarinitiative. 

Further free information lectures will deal with the following topics:

PART 11

Wednesday, May 13, 2026, 6:00 p.m.,

Topic: PV & Commercial

PART 12 

Wednesday, May 20, 2026, 6:00 p.m.,

Topic: My Commitment to Local PV Expansion

PART 13

Wednesday, May 27, 2026, 6:00 p.m., 

Topic: Photovoltaics on Multi-Unit Residential Buildings

The presentations complement the vendor-neutral energy consultations offered by the Rhineland-Palatinate Consumer Advice Center, which provides free, personalized consultations on energy conservation, the heating transition, and energy-efficient retrofits.

Note: Press releases regarding future dates will follow shortly. 

Explanations and notes

Sprachauswahl

Quick search

This website was automatically translated using AI

This website was automatically translated by DeepL's AI. It is possible that the machine translations may not fully correspond to the original text. The State Capital of Mainz assumes no liability for the accuracy, completeness, or timeliness of the translations. Furthermore, there is no guarantee that all content on mainz.de will be fully translated —for example, applications integrated as i-frames (such as “Lost and Found Online”), content embedded via interfaces (such as the events calendar), and files (e.g., PDFs, images, graphics) may not be translated. No liability is assumed for damages resulting from missing, incomplete, or incorrect translations.

When accessing the pages, personal data remains anonymous, as no data is transmitted to the service provider. The translated content is stored locally on the web server of the State Capital of Mainz and made available directly from there.