en.Wedoany.com Reported - The regional government of Castilla y León, through the public infrastructure and environment company Somacyl, has launched two tenders for the development of a sustainable heating network in León, with a total investment exceeding €51.1 million. The first tender involves the construction of a biomass heat generation center, with a total budget of €41.7 million and a construction period of 24 months.
The facility will be built on a 24-hectare plot next to the Bernesga River, part of a renewable energy complex developed by Somacyl in the city that combines biomass, solar photovoltaic, and hydrogen in an energy mix scheme. The center includes a photovoltaic plant composed of 576 modules of 570 Wp each, model TOPHiku6 CS6W-570 from Chinese manufacturer CanadianSolar or equivalent, with a total capacity of 328.32 kWp. The installation will be carried out in two phases, each with 288 modules, 12 strings per phase, and 24 modules connected in series per string. Each string will be connected to one MPPT port of a three-phase inverter, model SG350-HX from Chinese manufacturer Sungrow, with a rated power of 280 kW. The plant will operate in self-consumption mode without surplus energy injection, equipped with an anti-backflow system and protection devices compliant with REBT 2002 and UNE-HD-60364-7-712 standards. The modules will be installed coplanar on the roof, with tilt angles between 4.6 and 5 degrees and azimuth angles of 69, -111, -21, and 159 degrees respectively.
The project includes the installation of two biomass boilers, each with a capacity of 22,000 kW, totaling a thermal power of 44 MW. The complete development of the complex will reach 88 MW through future expansions. The center will use wood chips sourced from local resources. With these two initial boilers, an annual production of 176 GWh is expected, with an annual biomass consumption of approximately 64,000 tons. Somacyl states that the system can provide heating and domestic hot water to over 28,000 homes and 150 buildings in the capital of León, replacing more than 1,200 fossil fuel boilers.
The second tender corresponds to the deployment of the first phase of the heat distribution network, with an investment of €16.7 million plus VAT and a construction period of 24 months. This project includes approximately 28 kilometers of buried supply and return pipelines, with diameters ranging from DN800 to DN50, adapted to the needs of each section. Both projects are co-financed by the European Union's Just Transition Fund.
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