The plant, located in the town of Cabanillas and powered by E-Cogeneración Cabanillas, is the twelfth in the country connected by Nedgia, the group's distributor and Premium sponsor of the 2025 Renewable Gas Show.
The facility has the capacity to inject up to 320 Nm³/h, which translates into an estimated annual production of 22 GWh of biomethane, enough to supply 4.000 homes.
The plant is part of the expansion of a cogeneration facility that began operations in 2011. It originally produced electrical and thermal energy with a capacity of 370 kWe, using the heat generated for its own processes.
With the expansion, it can now recycle agricultural byproducts, primarily pig manure, and waste from the region's food industry to produce biomethane. Furthermore, the digestate generated in the recycling process can be used as fertilizer, helping to reduce dependence on fossil fuels.
The plant's construction has been co-financed by a grant from the Institute for Energy Diversification and Saving (IDAE).
Nedgia currently has twelve biomethane plants connected to its grid, with a total annual feed capacity of 328 GWh, equivalent to the consumption of 60.000 households. In addition, the company has another 74 projects underway in various stages of construction or administrative processing, which will increase its total capacity to 4.200 GWh per year.
In the Navarra region, in addition to the Cabanillas plant, Nedgia is working on seven other biomethane projects, which together have the potential to generate up to 400 GWh per year.