Spanish utility Naturgy Energy Group SA (BME: NTGY) announced on Thursday that it has connected the first biomethane plant in Navarre, northern Spain, to its gas distribution network through its subsidiary Nedgia, reports Renewables Now.
The facility, developed by local biogas producer E-Cogeneración Cabanillas, will inject up to 22 GWh of renewable gas annually into the Nedgia network — enough to supply around 4,000 households. According to Naturgy, this is the twelfth biomethane plant it has linked to its network in Spain.
The project expands a biogas cogeneration plant that began operations in 2011. It is designed to process agricultural and agri-food waste, mainly pig slurry, into biomethane. Spain’s Institute for Energy Diversification and Saving (IDAE) provided partial funding for the upgrade.
With an injection capacity of 320 normal cubic metres per hour (Nm³/h), the plant will also make use of the digestate generated during production, reducing dependence on synthetic fertilisers.
Naturgy said the facility forms part of its broader strategy to drive the energy transition by expanding green gas infrastructure. Nedgia now operates 12 biomethane injection points across Spain with a combined capacity of 328 GWh per year and has 74 more projects in development.
In Navarre alone, the company is advancing seven additional projects with a potential combined capacity of up to 400 GWh per year.
