# Spain biomethane plant developments > Live situation record from CLSTR: https://clstr.news/situations/spain-biomethane-plant-developments > Updated: 2026-08-26T11:49:10.000Z. Sources: 12. Developments: 4. In late July 2026, Spain saw multiple initiatives to expand its biomethane sector. On July 26, a second biogas plant was proposed on municipal land in Campondón, Mantinos, near the existing Guardo facility. Designed by Proyecto Pitma Generación 02, the project submitted an Environmental Impact Assessment to treat 123,000 tonnes of organic waste annually—including pig and cattle manure alongside wheat straw—to generate roughly 50,345 MWh of biomethane for the regional gas pipeline. Two days later, the Climate Change Board of Daimiel publicly criticized the municipal government for delays and alleged procedural shortcomings in a large-scale biomethane plant proposal, warning of possible legal liability over air-quality, odor, and water-safety concerns. Simultaneously, the Junta de Gobierno granted an urban-planning classification and construction licence for a compact, odor-free biomethane facility in Colmenar Viejo, slated to treat digestate for agricultural use. By mid-August, tensions escalated as the regional government of Castilla y León opened a public information period for a new proposal by Apiolae S. L. to build a biomethane and fertilizer production plant in Val de San Lorenzo, León. This project is undergoing a formal environmental impact assessment due to its chemical and electrical infrastructure. Meanwhile, in Daimiel, citizens organized protests under the ‘STOP Biometano Daimiel’ platform against a new organic waste management decree in Castilla-La Mancha. Protesters expressed concerns that the regulation could facilitate industrial expansion that threatens local ecosystems, including the Las Tablas de Daimiel and the water resources of the Alto Guadiana. On August 26, the ‘Stop Biometano CLM’ platform, comprising 46 collectives and the Verdes-Equo CLM party, submitted over 5,400 allegations against the regional decree. The group is seeking to nullify the regulation, which they describe as an ‘unsustainable speculative agro-energy development model.’ ## Timeline ### 2026-08-26: Stop Biometano CLM challenges regional biomethane decree The Stop Biometano CLM platform has filed 5,400 allegations against a Castilla-La Mancha biomethane decree, seeking its nullification due to environmental and legal concerns. 5 sources. https://clstr.news/cluster/stop-biometano-clm-challenges-regional-biomethane-decree ### 2026-08-17: Biomethane plant proposals spark environmental concerns in Castilla y León New biomethane and fertilizer plant proposals in Castilla y León have sparked environmental scrutiny and local protests in Daimiel over potential impacts on water resources and ecosystems. 3 sources. https://clstr.news/cluster/biomethane-plant-proposals-spark-environmental-concerns-in-castilla-y-len ### 2026-07-28: Daimiel and Colmenar Viejo move forward with biomethane plant projects Daimiel’s climate board criticises the delayed biomethane plant, citing transparency and legal concerns, while Colmenar Viejo receives planning approval and a licence for a compact, odor‑free biomethane plant. 3 sources. https://clstr.news/cluster/daimiel-and-colmenar-viejo-move-forward-with-biomethane-plant-projects ### 2026-07-26: New Biogas Plant Proposed in Campondón, Spain A second biogas plant is proposed on Mantinos land near Campondón, Spain, to treat 123 k t of manure and straw annually and generate about 50 GWh of biomethane, reflecting wider biowaste‑to‑energy efforts. 2 sources. https://clstr.news/cluster/new-biogas-plant-proposed-in-campondn-spain --- Cite as: Spain biomethane plant developments. CLSTR, https://clstr.news/situations/spain-biomethane-plant-developments