@article{cardenas2021energy,
  abstract = {This paper explores how the requirement for energy storage capacity will grow as the penetration of renewables increases. The UK’s electric grid is used as a case study. The paper aims to provide insight on what is the most economical solution to decarbonize the electric supply. A two-dimensional study varying the penetrations of wind and solar PV is carried out to identify the most appropriate generation mix for the country. The study is based on 9 years of demand and generation data with a 1hr resolution. It discusses the risk of underestimating the storage capacity needed, by failing to capture the inter-annual variability of renewables and analyzes the economic trade-off between over-generation (curtailment) and storage capacity. It also aims to determine the percentage of over-generation that minimizes the total cost of electricity. Results suggest that the UK could need a storage capacity of approximately 43 TWh to decarbonize its electricity supply. This figure considers a generation mix of 84% wind +16% solar PV, a roundtrip storage efficiency of 70%, and 15% of curtailment. Based on current costs of bulk energy storage technologies, this storage capacity translates into an investment of ∼£165.3 billion or approximately 7% of the country’s GDP.},
  added-at = {2021-04-06T16:26:43.000+0200},
  author = {Cárdenas, Bruno and Swinfen-Styles, Lawrie and Rouse, James and Hoskin, Adam and Xu, Weiqing and Garvey, S.D.},
  biburl = {https://www.bibsonomy.org/bibtex/2a86c1a27d4e89b7f976ed12861b6c6b9/pbett},
  description = {Energy storage capacity vs. renewable penetration: A study for the UK - ScienceDirect},
  doi = {https://doi.org/10.1016/j.renene.2021.02.149},
  interhash = {0b05b3623af7f8c25d6fa87ea3c13f71},
  intrahash = {a86c1a27d4e89b7f976ed12861b6c6b9},
  issn = {0960-1481},
  journal = {Renewable Energy},
  keywords = {energy wind solar renewables electricitynetworks energystorage},
  pages = {849-867},
  timestamp = {2021-04-06T16:26:43.000+0200},
  title = {Energy storage capacity vs. renewable penetration: A study for the UK},
  url = {https://www.sciencedirect.com/science/article/pii/S0960148121003281},
  volume = 171,
  year = 2021
}

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It discusses the risk of underestimating the storage capacity needed, by failing to capture the inter-annual variability of renewables and analyzes the economic trade-off between over-generation (curtailment) and storage capacity. It also aims to determine the percentage of over-generation that minimizes the total cost of electricity. Results suggest that the UK could need a storage capacity of approximately 43 TWh to decarbonize its electricity supply. This figure considers a generation mix of 84% wind +16% solar PV, a roundtrip storage efficiency of 70%, and 15% of curtailment. 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