The debate surrounding biomethane plants has moved to the forefront of politics in Castilla-La Mancha. The recent approval of a legal amendment granting municipalities the power to halt these projects has sparked a flurry of accusations between the regional government, the opposition, and the local councils themselves. Meanwhile, in towns like Talavera de la Reina, citizens and political parties are clashing over the arrival of up to four facilities that promise to process hundreds of thousands of tons of waste annually.
The controversy not only affects the management of slurry and other agricultural waste, but also highlights the lack of specific regulations and the need for transparency in the processing of projects that, according to their proponents, promote the circular economy , but which, according to their detractors, pose a threat to the quality of life and the environment.
The new law that gives a voice to municipalities
The Cortes of Castilla-La Mancha have approved, with votes from the Socialist Group and opposition from the PP and Vox parties, a reform of the Environmental Assessment Law that requires municipal councils to expressly rule on the installation of biomethane plants within their jurisdiction. Until now, municipalities only issued technical or urban planning reports, but with the new legislation, their decision will have direct effects on the project's processing . If the council rejects the initiative through a reasoned resolution, the environmental procedure will be halted, and the plant cannot be built as originally proposed.
Socialist MP Francisco Barato argued that the amendment allows for a shift from merely informative participation to a "clear, formal, and effective" intervention. According to Barato, the municipalities affected by truck traffic, odors, and the impact on agriculture and livestock farming should have the final say. The Minister of Sustainable Development, Mercedes Gómez, added that numerous town councils were eagerly awaiting this reform so they could accept or reject the plants planned for their territory.
However, the People's Party has denounced the regional government's intention to use mayors and councilors as a "political shield" to avoid the political fallout of approving or rejecting these facilities. Deputy Santiago Lucas-Torres warned that many small municipalities lack the technical expertise and resources to analyze projects of this complexity, and pointed out that the Governing Council could circumvent municipal opposition by declaring the initiative a strategic investment. For its part, Vox has warned that the reform will increase bureaucracy and could generate conflicts when the same facility affects two towns with opposing views.
Talavera, epicenter of the controversy
In Talavera de la Reina, the potential construction of four biomethane plants with the capacity to treat up to 935.000 tons of waste per year has sparked intense political conflict. The mayor, José Julián Gregorio, of the People's Party (PP), has declared, "I'm not going to turn Talavera into a landfill," and has promised that the City Council will request "every report imaginable" to ensure compliance with the law. Gregorio has blamed the regional government of Castilla-La Mancha, controlled by the Socialist Party (PSOE), for having given environmental approval to the most advanced project, that of the company Five Bioenergy, which will manage 240.000 tons annually near the Cazalegas industrial park.
The spokesperson for the governing team, Jesús GarcÃa-Barroso, went further, pointing out that the Castilla-La Mancha Biomethanization Plan 2024-2030 includes the Talavera region as one of the areas where between five and ten plants could be installed. GarcÃa-Barroso rejected the PSOE's accusations that the mayor is the driving force behind these projects and recalled that the application for the first plant began processing in 2023, during the previous Socialist administration , without the City Council submitting any objections at that time.
The Socialist Municipal Group, for its part, has demanded that the local government immediately halt the processing of the project and amend the urban planning regulations to prevent the construction of these plants. Deputy spokesperson Flora Bellón asserted that it was the mayor himself who "opened the door" to the first plant by holding meetings with the developers and describing it in February 2024 as "good news for the city." The Socialists also criticized the Talavera City Council for not submitting any objections to the project, unlike the neighboring municipality of Cazalegas, and called for a clear "political will" to stop what they consider a "pull factor . "
The opposition has also pointed out that municipal technical reports already reflect positive aspects, such as economic revitalization and support for the livestock sector, but also negative ones, such as the potential emission of unpleasant odors due to the plant's location less than 500 meters from urban land. Socialist spokesperson José Gutiérrez has urged the governing team to "pull the brakes" and modify the Municipal Planning Scheme with the same determination shown in the previous legislative term against factory farms.
Reactions and next steps
The legal reform and the controversy in Talavera have highlighted the need for a clear regulatory framework for biomethane in Castilla-La Mancha. While the regional government is preparing specific regulations that will include, among other measures, the requirement that projects be approved by full municipal councils, the People's Party (PP) and Vox maintain their opposition to a law that, in their view, unduly shifts the responsibility to the municipalities. Regional Minister Mercedes Gómez has argued that local councils will be able to seek advice from the provincial councils and the regional government itself to make informed decisions.
In Talavera, Mayor Gregorio has insisted that he will ensure all projects comply with the law and has announced that he will soon explain when the processing of the first application began, suggesting that the Socialist Party (PSOE) will have to "bury its head in the sand." Meanwhile, neighborhood associations and platforms such as SOS Talavera and Despertemos continue to mobilize, warning of the risks to air and water quality and the landscape. Far from dying down, the controversy has become a central issue in the regional political debate, with attention focused on how the new law will be implemented and whether it will truly allow municipalities to regain control over their territory.
The situation reflects a conflict of interest between the development of renewable energy, waste management, and the quality of life of citizens. While the companies promoting the projects defend biomethane as an opportunity for the circular economy and emissions reduction, residents and some politicians demand transparency, independent studies, and genuine participation in decisions that affect their environment. The future of these plants will depend on the ability of the authorities to find a balance that satisfies both energy needs and social demands.
