

The state-owned HUNOSA (HULLERAS DEL NORTE S.A., S.M.E.) is making progress with its own energy transition, from coal mining to renewable energies. Fondón DH System is an energy project with a significant environmental, cultural and economic impact, which also includes technical and social innovation in its development and offers a replicable solution for other cities. HUNOSA has developed Fondón DH network around the facilities of Fondón Colliery (Asturias, Spain), harnessing the mine water pumped from an old mine and hybridising this solution with biomass boilers to provide heating and domestic hot water to a total of 13 buildings of different types in the town of La Felguera. Hybridisation ensures energy supply to all customers, stabilises dependence on mine water, optimises the performance of the geothermal installation (by COP improvement) and optimises the cost of production through the implementation of an smart tool. HUNOSA has collaborated in R&D European projects to seek innovative technical solutions to increase and improve the use of geothermal resources (H2020 REWARDHeat). In the field of social innovation, it facilitates the regeneration of disadvantaged neighbourhoods (Horizon GINNGER). The Fondón DH system represents an example of replicability linked to mine water, but also to geothermal or aerothermal systems. The future development of DH networks in the region of Asturias has been established in HUNOSA’s “General Plan for the Development of DH Networks.”
Visit the project’s website here.