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More InformationIn the centre of Droyßig stands the Kritzinger Villa, the former director’s residence of the Royal Educational Institutions of Droyßig – which were donated to the Prussian state in 1847 – a listed Gründerzeit building situated in the midst of the three-winged school complex, parts of which have already been renovated; the villa itself remains unrenovated and its future is under threat. It is named after Wilhelm Kritzinger, the first director of the Droyßig institutions and the poet who wrote the Christmas carol ‘Süßer die Glocken nie klingen’, which forms part of the region’s cultural heritage. The school complex was transferred in 2018 to the Fürst-Otto-Victor-Stiftung-Droyßig, which has since invested more than €850,000 of its own funds in windows, sanitary facilities, heating, sandstone work and external rendering of the main building, as well as more than €150,000 in non-material projects; a renovation of the villa cannot be financed from its own resources. At the same time, the community lacks a venue for cultural activities that brings together the resources of the two local libraries and the local voluntary organisations. The aim of the NEB_PROJECT is to preserve the villa by putting it to good use as a cultural centre, whilst at the same time developing it into a hands-on demonstration of low-energy technology in a listed building: A library, media lab and makerspace, a mentoring scheme, music and creative spaces, a repair café and a ‘lending library of things’ are being created within a building where the technology is clearly demonstrated and explained. As a project partner, Fraunhofer IMWS Halle is contributing the energy concept and, building on the refurbishment, is developing scenarios for an expanded energy-sharing scheme – covering both electricity and heat – extending beyond the Droyßiger Anstalten building complex into the surrounding local area.
The project pursues three interlinked objectives: the sustainable refurbishment of the Kritzinger Villa as an exemplary ‘House 1’; the development of an expansion concept to extend this refurbishment to the entire building complex, right through to energy sharing at neighbourhood level; and the participatory evaluation of this expansion concept, including prototypical subsystems. The structural basis consists of capillary low-temperature ceiling heating systems and LED lighting. The capillary pipe system and LED technology alone reduce energy consumption by around 65 per cent compared with the previous setup. The new heating system will initially remain connected to the existing heating plant and will be gradually converted to renewable energy; for the castle and the municipal administration building within a 300-metre radius, a municipal heating network – for example, based on geothermal energy – is a viable long-term option. Old, solid components from the original structure – doors, staircases and banisters – are being restored whilst retaining their original character; for this reason, underfloor heating has been dispensed with. An external lift at the north-west corner, designed in accordance with heritage conservation guidelines, provides access to the building. Fraunhofer IMWS is assessing the energy potential of the building complex and the surrounding neighbourhood, using this to optimise energy-sharing scenarios and, through a multi-stakeholder process, consolidate them into a coordinated development plan. At the same time, co-creatively developed functional prototypes are being produced: heated library and school furniture in lightweight structural construction and flexible room fittings for cultural uses – realised in collaboration with the workshops at Burg Giebichenstein / Interior Design. Young people are involved in the construction work through a ‘school building workshop’ and the compulsory-elective subject ‘Planning, Building, Designing’, and are trained as tour guides and ambassadors for sustainable renovation. Results are disseminated via the Club of Rome School Network, exchanges with the University of South Carolina, Energie-Avantgarde-Anhalt e. V. and the Rathenau Forum. In line with the criteria of the New European Bauhaus – ‘beautiful, sustainable, together’ – the project sees itself as a transferable prototype for the Wilhelminian-era school and heritage building stock in Central Germany.
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