The life cycle greenhouse gas implications of a UK gas supply transformation on a future low carbon electricity sector

摘要: Natural gas used for power generation will be increasingly sourced from more geographically diverse sites, and unconventional sources such as shale biomethane, natural reserves diminish. A consequential life cycle approach was employed to examine the implications of an evolving supply on greenhouse (GHG) performance a future United Kingdom (UK) electricity system. Three mixes were developed based trends, present day year 2050. The contribution upstream emissions - extraction, processing/refining, is not fully reported or covered by UK government legislation. However, seen very influential systems analysed; with per MJ rising between 2.7 3.4 times those current supply. Increased biomethane in led substantial reduction direct fossil emissions, which found critical offsetting emissions. Accordingly, modelled high scenario, lowest adoption; resulted highest GHG basis. long-term dynamics processes are explored this work help guide decarbonisation policies.