Average costs of biogas production technologies per unit of energy produced (excluding feedstock), 2018

Sources

IEA analysis based on different sources (Dennehy et al., 2017; ETSAP, 2013; and others).

Notes

HH = household; ''HH Basic'' includes biodigesters constructed in place using traditional construction materials such as sand, gravel and cement; ''HH Advanced'' includes pre‑manufactured biodigesters made of more expensive composite material. Maintenance and operating costs include ordinary and extraordinary maintenance, labour costs, and energy required to operate the system. Capital costs have been levelised for the production lifetime of each technology: 25 years for landfill gas recovery and advanced household biodigesters; 20 years for centralised biodigesters (small, medium and large) and wastewater digesters; 15 years for basic household biodigesters. 1 MBtu = 0.29 MWh.