{"id":3509,"date":"2026-03-11T09:06:16","date_gmt":"2026-03-11T09:06:16","guid":{"rendered":"https:\/\/heatpumpingtechnologies.org\/project62\/?post_type=case_studies&p=3509"},"modified":"2026-03-17T09:14:29","modified_gmt":"2026-03-17T09:14:29","slug":"es005-syn-ikia-santa-coloma-de-gramenet","status":"publish","type":"case_studies","link":"https:\/\/heatpumpingtechnologies.org\/project62\/case-studies\/es005-syn-ikia-santa-coloma-de-gramenet\/","title":{"rendered":"ES005 syn.ikia \u2013 Santa Coloma de Gramenet"},"content":{"rendered":"
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Positive Energy Building in Mediterranean Social Housing<\/strong><\/p>\n<\/div>\n\n

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New construction of 38 social housing units powered by centralized air-to-water heat pumps and renewable energy systems, within the EU-funded syn.ikia project.<\/p>\n<\/div>\n\n

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The building in Santa Coloma de Gramenet consists of 38 social housing units and has been designed to achieve a positive annual energy balance. It features a centralized air-to-water heat pump system that supplies heating and domestic hot water. Heat is distributed through vertical risers to individual hydraulic substations (LEAKO) located close to each apartment, which independently regulate domestic hot water and space heating via low-temperature radiators. These substations also provide hydraulic separation between the primary and secondary circuits, contributing to stable operation and individual control. This layout ensures thermal comfort, user autonomy and high system efficiency.<\/p>\n<\/div>\n\n

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A photovoltaic installation with a total capacity of 19.8 kWp, integrated into the building\u2019s rooftop, contributes significantly to covering the building\u2019s common electricity demand and partially offsets the energy required for thermal generation. Alongside a high-performance building envelope with enhanced insulation and airtightness, the system minimizes energy losses and maximizes renewable self-consumption. Smart control and monitoring technologies support optimal regulation, fault detection and energy tracking over time, enabling a proactive management of the building’s energy performance.<\/p>\n<\/div>\n\n

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The Santa Coloma project demonstrates that the application of Positive Energy Building standards is feasible in the context of affordable housing, under Mediterranean climate conditions. Its technical configuration offers a scalable and replicable model for future residential developments aiming to combine energy efficiency, renewable integration and social sustainability.<\/p>\n<\/div>\n\n

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Lessons learned<\/strong><\/p>\n<\/div>\n\n

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