Spain's biomethane potential
Biomethane is not future energy. It exists today and Spain has a huge technical potential it has barely tapped.
This piece contrasts the theoretical potential, current deployment and the path from organic waste to gas grid injection.
The estimated technical potential is 163 TWh/year, 45% of current gas demand.
Actual recent production is 0.41 TWh — a minimal fraction of the potential. The Roadmap target is to reach 10.4 TWh by 2030.
Biomethane potential in Spain
The potential is distributed across agricultural, livestock and urban waste resources. The comparison shows how it could partially cover gas demand.
Biomethane potential by vector in Spain (TWh/year)
Source: MITECO
European comparison
While Spain has 22 plants, Europe has 1678. Germany and France have years of lead in deployment.
European comparison: biomethane plants (2025)
Source: Enagás
Current deployment in Spain
The current deployment pace is far below the 2030 Roadmap target. The gap between potential and reality is structural, not technological.
Current deployment vs 2030 target in Spain
Source: MITECO
How biomethane is produced
The production chain: from waste to grid
1. Residuo orgánico
Purines, lodos de depuradora, residuos agroalimentarios y biorresiduos urbanos.
2. Biogás
Digestión anaerobia: mezcla de metano y CO2.
3. Upgrading a biometano
Purificación para elevar el metano y cumplir calidad de red.
4. Inyección y uso
Entrada al sistema gasista para usos industriales, térmicos y de movilidad.
What the data tells us
1 The technical potential of 163 TWh/year could cover 45% of gas demand, but deployment is marginal.
2 With 22 plants, Spain lags far behind Europe (1678 plants).
3 The 10.4 TWh target for 2030 requires multiplying current production by 25x.