Journal
NATURE ENERGY
Volume 6, Issue 2, Pages 158-166Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41560-020-00755-9
Keywords
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Funding
- ESRC Grand Union Doctoral Training Partnership
- Scatcherd European Scholarship from the University of Oxford
- 73 Scholarship Fund for Geography from Hertford College, Oxford
- British Academy's Sustainable Development Programme [GF160016]
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By using a machine-learning model, the study accurately predicted the success and failure of power-generation projects in Africa, identifying capacity, fuel, ownership, and connection type as key factors for successful commissioning. Contrary to rapid transition scenarios, the share of non-hydro renewables in electricity generation in Africa is expected to remain below 10% in 2030.
Energy scenarios, relying on wide-ranging assumptions about the future, do not always adequately reflect the lock-in risks caused by planned power-generation projects and the uncertainty around their chances of realization. In this study we built a machine-learning model that demonstrates high accuracy in predicting power-generation project failure and success using the largest dataset on historic and planned power plants available for Africa, combined with country-level characteristics. We found that the most relevant factors for successful commissioning of past projects are at plant level: capacity, fuel, ownership and connection type. We applied the trained model to predict the realization of the current project pipeline. Contrary to rapid transition scenarios, our results show that the share of non-hydro renewables in electricity generation is likely to remain below 10% in 2030, despite total generation more than doubling. These findings point to high carbon lock-in risks for Africa, unless a rapid decarbonization shock occurs leading to large-scale cancellation of the fossil fuel plants currently in the pipeline.
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