Energy-efficient renovation of Sundern indoor swimming pool and wood-fuelled CHP plant

Summary

The tender concerns the energy-efficient renovation of the indoor swimming pool in Sundern, including the façade, roof, internal suspended ceiling, wall coverings and energy supply. The works also include a pellet-fuelled combined heat and power plant with a cascade of pellet boilers to provide additional heating. The existing gas condensing boiler and gas CHP unit will remain in place as emergency boilers. The building has a gross volume of approximately 21,183 m³, a ground-floor gross floor area of approximately 2,113 m² and a basement gross floor area of approximately 1,304 m²; the swimming hall covers approximately 1,083 m². The submission deadline is 14 October 2026. Precise qualification, suitability, compliance and technical requirements were not included in the machine-readable notice and must be checked in the official tender documents.