4.7 Article

Socio-technical modelling of UK energy transition under three global SSPs, with implications for IAM scenarios

期刊

ENVIRONMENTAL RESEARCH LETTERS
卷 17, 期 12, 页码 -

出版社

IOP Publishing Ltd
DOI: 10.1088/1748-9326/aca54f

关键词

socio-technical energy transition; pathway feasibility; climate change mitigation

资金

  1. European Union [821124]

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This article discusses the use of socio-technical energy transition (STET) models in integrated assessment models (IAMs). The TEMPEST model, which incorporates societal and political factors, is used to simulate different global socioeconomic pathways (SSPs) for the UK's energy transition. Findings show that SSP2 is the most feasible scenario, with the closest resemblance to historical precedent. The article highlights the importance of considering political and societal support, negative pushback, and user demand in IAMs.
The potential for using findings from socio-technical energy transition (STET) models in integrated assessment models (IAMs) has been proposed by several authors. A STET simulation model called TEMPEST, which includes the influence of societal and political factors in the UK's energy transition, is used to model three of the global shared socioeconomic pathways (SSPs) at the national level. The SSP narratives are interpreted as inputs to TEMPEST, which drive scenario simulations to reflect varying societal preferences for mitigation measures, the level of political support for energy transition, and future economic and population trends. SSP1 and SSP2 come close to meeting UK net zero targets in 2050 but SSP5 does not reach net zero before 2080. An estimate of the total societal, political, and economic cost of scenarios indicates that while SSP1 achieves the best emissions reductions it also has the highest total cost, and SSP2 achieves the best ratio between rate of emissions reductions and total cost. Feasibility appears to be highest for SSP2 since it is the least different to historical precedent. Current UK government energy strategy is closer to the narrative in SSP5, however, which has the highest total cost and exceeds an estimated carbon budget by 32%. Three key TEMPEST findings are recommended for use in IAMs: (i) the uncertainty in emissions savings due to variability in political and societal support for energy transition, (ii) the influence of negative societal pushback to policies in achievement of expected policy outcomes, and (iii) the combined influence on energy service demand of disposable income, public willingness to participate, and user impacts from measures.

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