ZEROit_Nuremberg.

Nuremberg

ZEROit - Holistic portfolio planning tool and rapid zero-emission renovations to advance the energy transition of buildings and achieve urban climate goal targets

Energy transition

Ongoing

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Nuremberg

The ZEROit project aims to solve the City of Nuremberg’s energy transition challenges using a holistic approach that is highly replicable. Core strategies include transitioning to high-efficiency active systems, with solutions such as introducing heat pumps, reducing energy demand, integrating renewable energy sources, and enhancing grid flexibility. Together, these measures can enable cities to accelerate renovation efforts, overcome systemic barriers, and effectively reduce emissions.

Our main challenges...

  • The complexity of monitoring and analysing the entire building stock to make optimal investment choices that take into account the condition of individual buildings, city planning regulations and environmental changes.

  • The complexity of planning and integrating various systems in individual buildings and multiple renovations, while taking financial and personnel restraints into account.

  • A lack of local contractors capable of integrating multiple systems and trades.

and proposed solutions

  • An innovative Holistic Portfolio Planning Tool (HPP-Tool) that facilitates optimal investment decisions and complex planning despite limited resources. The tool integrates data for the entire stock, providing city-wide analysis and multiple automated planning features.

  • Rapid Zero-Emission Renovation (RAZE-Renovation) approach, which uses off-the-shelf technologies for small and medium-sized buildings, minimising costs while preparing for future envelope improvements.

  • Focus on building stakeholder and citizen capacity for uptake, including a trial of the HPP-Tool in a One-Stop-Shop (OSS).

Key figures

1 900
buildings managed by the City of Nuremberg to be covered by a new Holistic Portfolio Planning Tool
2035
is the target year for the city administration to become climate-neutral
4
buildings to be renovated during the ZEROit project
400
tonnes reduction expected in CO2 equivalent greenhouse emissions each year

Milestones

HPP-Tool model designed
May 2026
Selection of the first building for RAZE-Renovation
Jul 2026
First RAZE-Renovation
Mar 2027
Extension of the HPP-Tool
Sep 2027
Selection of three buildings for second RAZE-Renovations
Oct 2027
Framework tender for three buildings for RAZE-Renovation
Jan 2028
1. HPP-Tool model designed
01 May 2026

Holistic Portfolio Planning Tool has integrated all city data, ready to assess Nuremberg’s municipal building portfolio.

2. Selection of the first building for RAZE-Renovation
01 Jul 2026

Identification of the first building and planning of its Rapid Zero-Emission Renovation

3. First RAZE-Renovation
01 Mar 2027

Implementation of the first Rapid Zero-Emission Renovation

4. Extension of the HPP-Tool
01 Sep 2027

Environmental and financial model available in higher detail, enabling deeper planning of measures

5. Selection of three buildings for second RAZE-Renovations
01 Oct 2027

Identification of a building bundle and planning of a second round of Rapid Zero-Emission Renovations

6. Framework tender for three buildings for RAZE-Renovation
01 Jan 2028

Implementation of three Rapid Zero-Emission Renovations

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