Abstract

The diversity in the nature or composition of the electricity grid, the energy demand and supply characteristics, the renewable energy resources, the markets and policies, and the sustainability goals at a location often determine the utility of energy storage at the location. The Northern Irish electricity system is an interesting case for assessing the value of energy storage using the Northern Irish locational features that determine the value of energy storage. In assessing the value of energy storage, metrics and tools are developed for deploying mass energy storage devices such that the benefits of storage could be maximised with respect to identifying the locations where storage could provide the best values and with respect to how the level of storage and the time of storage could provide maximum return on investment for stakeholders (customers, investors, utility), and towards achieving a sustainable Northern Irish electricity system. A Framework for benefit analysis for mass energy storage includes benefit analysis phases in the Framework: from the first phase – involving using generic input value factors – to the last phase of using site-specific input factors in performing technical and economic analyses on unit energy storage. Selected cases of applying the mass energy storage devices in providing energy storage services at the low-voltage and at the high-voltage network layers of the electricity grid are analysed. In applying energy storage at the different layers of the grid, certain locations are found to present appreciable benefits to storage where there are relatively higher energy storage needs because of network conditions, available renewable energy resources, and markets facilitating storage. The benefit analysis suggests how the Northern Irish sustainability and locational needs could be met with storage and how market conditions and policies could be redesigned to unlock the benefits of storage for the stakeholders across the electricity supply chain.
Date of AwardJul 2022
Original languageEnglish
SponsorsScience Foundation Ireland & Department for the Economy
SupervisorPatrick Keatley (Supervisor) & Neil Hewitt (Supervisor)

Keywords

  • constraint and curtailment management
  • electricity grid sustainability
  • energy storage policy,
  • equitable energy market,
  • locational storage value
  • managing variable renewable energy
  • mass energy storage
  • Northern Ireland
  • Northern Irish electricity grid
  • storage benefit analysis,
  • storage market services
  • storage technologies
  • storage value framework,
  • variable renewables
  • wind energy storage

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