Bonner Energy Days: Renovation tour in Bonn-Castell shows energy potentials on site

Renovation tour through Bonn-Castell: Experience energy efficiency directly in the neighborhood

On June 23, 2026, the renovation tour of the Bonner Energy Days will take place in the heart of Bonn-Castell. The starting point is Römerstraße at the corner of Badener Str. in front of the advertising column, where energy consultant Julian Brenner from the Consumer Center NRW will explain typical renovation potentials in old buildings. The tour is free of charge and is aimed at anyone who wants to experience energetic renovation in an understandable, practical, and direct way on site. ([bonner-energietage.de](https://www.bonner-energietage.de/))

Why this tour is so exciting

Bonn-Castell demonstrates how closely urban history and building stock are interwoven in a small space. Here, questions that property owners face in their daily lives become visible: insulation, heating technology, hot water, electricity generation, and the sensible order of measures. The tour makes these topics tangible and translates expert knowledge into clear decisions. ([bonner-energietage.de](https://www.bonner-energietage.de/))

Expert knowledge with real practical relevance

The Bonner Energy Days have relied on independent advice, climate protection, and understandable event formats for years. The renovation tour adds a direct look at building structures in the neighborhood to the program and shows how energetic renovation can be planned in existing buildings. The format is part of a series of events jointly supported by the City of Bonn, Bonner Energy Agency, SWB Energy and Water, and the Consumer Center NRW. ([bonner-energietage.de](https://www.bonner-energietage.de/))

This is what the event experience feels like

Those who participate will not experience dry theory, but a compact walk with a clear target audience address: listen carefully, ask questions, think along. The atmosphere among the audience is likely to be open and curious, as the format creates exactly the mix of information gain and concrete orientation that is often lacking in renovation matters. ([bonner-energietage.de](https://www.bonner-energietage.de/))

Conclusion: An appointment for anyone who really wants to understand renovation

The renovation tour Bonn Castell combines energy consultation, neighborhood insights, and orientation aids into a lively on-site experience. Anyone who wants to better understand their house, apartment, or simply the energetic future of existing buildings will receive strong impulses, sound answers, and a concise introduction to the world of energetic renovation here. Be there live and see Bonn-Castell with new eyes. ([bonner-energietage.de](https://www.bonner-energietage.de/))

Official channels of Bonner Energietage:

• Instagram: https://www.instagram.com/bonner_energie_agentur/
• Facebook: https://www.facebook.com/BonnerEnergieAgenturEV
• YouTube: https://www.youtube.com/channel/UCVq-7bqcWPgiFywbLBYL5pA
• TikTok: No official profile found

Sources:

• Bonner Energietage - Official event page
• Bonner Energy Agency - Bonner Energy Days
• Consumer Center NRW - Discover and understand renovation potentials
• Bonner Energy Agency - Homepage