Two new biogas and biomethane projects in the province of Zamora, in Coreses and San Cebrián de Castro , have recently obtained a favorable environmental impact statement, according to the resolutions published in the BOCYL on April 8, 2026.
The Coreses project , promoted by Axpo Biometano ES1, SL , envisions a plant for the valorization of non-hazardous waste through anaerobic digestion for biogas production, with upgrading and subsequent injection into the grid. The facility will have a treatment capacity of 93.565 tons per year of organic waste from the agricultural, livestock, agri-food, industrial, and domestic-commercial sectors. The resolution includes an estimated production of 5.589.343 Nm³/year of biogas and 3.024.000 Nm³/year of biomethane , in addition to 8.353 t/year of compost and 2.066 t/year of liquid organic fertilizer.
In San Cebrián de Castro , the project promoted by Biorig Energy San Cebrián-Zamora, SL reaches a larger scale. The planned plant has a capacity of 198.000 tons of organic waste per year and an estimated production of 18.795.191 Nm³/year of biogas , 10.055.427 Nm³/year of biomethane , and 8.739.763 Nm³/year of biogenic CO₂ . In addition, it is projected to produce 206.817 tons/year of EU fertilizer , in a configuration that reinforces the approach of comprehensive valorization of organic byproducts.
The San Cebrián file also includes the necessary connection infrastructure for the project: a 21,264-kilometer underground medium-voltage line and a 105-meter pipeline for the delivery of biomethane to the natural gas transport network.
These documents show that concrete projects continue to move forward in territories with available organic resources and the potential to produce renewable gases. This is a significant step in the permitting process for the two plants which, once built, will contribute to expanding biogas and biomethane production capacity in an autonomous community destined to play a leading role in this field.
In the case of San Cebrián de Castro , the process has been accompanied by allegations and observations on various environmental and territorial issues, which also reflects that in addition to technical and environmental soundness, projects need clear information and dialogue with the surrounding area.
In addition to these two initiatives in Zamora, other projects are also underway. Another project, promoted by Norbiogas Biometano III, SL , remains in the public consultation phase in Coreses , confirming the growing interest in these types of facilities in areas with significant agricultural, livestock, and agro-industrial activity.
https://bocyl.jcyl.es/boletines/2026/04/08/pdf/BOCYL-D-08042026-66-20.pdf
https://bocyl.jcyl.es/boletines/2026/04/08/pdf/BOCYL-D-08042026-66-21.pdf
Axpo will be present at the 6th Renewable Gas Exhibition.