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The life cycle greenhouse gas implications of a UK gas supply transformation on a future low carbon electricity sector
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hammond, Geoffrey P. Grady, A. O. |
| Copyright Year | 2017 |
| Abstract | Natural gas used for power generation will be increasingly sourced from more geographically diverse sites, and unconventional sources such as shale and biomethane, as natural gas reserves diminish. A consequential life cycle approach was employed to examine the implications of an evolving gas supply on the greenhouse gas (GHG) performance of a future United Kingdom (UK) electricity system. Three gas supply mixes were developed based on supply trends, from present day to the year 2050. The contribution of upstream gas emissions - such as extraction, processing/refining, - is not fully reported or covered by UK government legislation. However, upstream gas emissions were seen to be very influential on the future electricity systems analysed; with upstream gas emissions per MJ rising between 2.7 and 3.4 times those of the current supply. Increased biomethane in the gas supply led to a substantial reduction in direct fossil emissions, which was found to be critical in offsetting rising upstream emissions. Accordingly, the modelled high shale gas scenario, with the lowest biomethane adoption; resulted in the highest GHG emissions on a life cycle basis. The long-term dynamics of upstream processes are explored in this work to help guide future decarbonisation policies. |
| Starting Page | 937 |
| Ending Page | 949 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.energy.2016.10.123 |
| Volume Number | 118 |
| Alternate Webpage(s) | https://purehost.bath.ac.uk/ws/portalfiles/portal/148632026/Published_Version.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.energy.2016.10.123 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
