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Table 2 Primary energy (PE) inputs, outputs, losses, and energy ratio for the two biomethane production scenarios

From: Exploring the potential for biomethane production by willow pyrolysis using life cycle assessment methodology

  Input (PE) Output Losses Energy ratio (out/in)
(GJ/ha/year)
Total Biomethane1 Exported heat Total Methane Waste heat
Reference 26.0 141.0 0.0 141.0 6.0 0 5.4
Willow a 12.5 111.0 10.0 121.0 2.0 21.7 8.9
  1. 1Biomethane lower heating value = 48 MJ/kg