Spain has a very high potential for biogas production and therefore for biomethane distribution. According to SEDIGAS, the Spanish Gas Association, Spain has a total accessible potential of 163 TWh/year of biomethane, which implies the construction of some 2,300 plants around the country. In economic terms, a total investment of around 40.5 billion euros is estimated, which represents 3.61% of the national GDP, and would generate some 62,000 direct and indirect jobs associated with operation and maintenance.