Subsea buoyancy and gravity energy storage system for deep-water applications: A preliminary assessment

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Abstract

This article presents a preliminary assessment of a subsea buoyancy and gravity energy storage system (SBGESS). The storage device is designed to power an off-grid subsea water injection system to be installed at the Libra oil field in Brazil at 2000 m below sea level. Two 12MW floating wind turbines provide the energy supply. The system performance is evaluated according to historical wind data from reanalysis models, the water injection pumps power curves, the required daily water flow rate, and the maximum number of shutdowns allowed per year. A control strategy with three different operation modes and one energysave sub-mode was implemented to optimise the size of the proposed energy storage system.

Original languageEnglish
Title of host publicationOcean Renewable Energy
PublisherThe American Society of Mechanical Engineers (ASME)
Number of pages10
ISBN (Electronic)978-0-7918-8593-2
DOIs
Publication statusPublished - 2022
EventASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022 - Congress Center Hamburg, Hamburg, Germany
Duration: 5 Jun 202210 Jun 2022
https://event.asme.org/OMAE-2022

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume8

Conference

ConferenceASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022
Abbreviated titleOMAE 2022
Country/TerritoryGermany
CityHamburg
Period5/06/2210/06/22
Internet address

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Buoyancy energy storage
  • Gravity energy storage
  • offshore energy

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