Development of utility scale buoyant energy storage technology

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dc.contributor.authorThornbrue, Tyler Benjamin
dc.date.accessioned2016-02-19T22:45:48Z
dc.date.available2016-02-19T22:45:48Z
dc.date.issued2012-05
dc.description.abstractPower intermittency is a growing concern as variable renewable power producers increase their penetration on utility grids. With a majority of US states adopting renewable portfolio standards, mitigation strategies such as energy storage are receiving renewed attention. This thesis presents the developmental progress of a novel method of energy storage referred to as buoyant energy storage technology (BEST). Various concepts are presented, and benefits highlighted before demonstrating a basic system's performance through dynamic modeling. A control methodology is then designed and implemented to improve the performance and functionality of the same model. Further expansion to a dual buoy model and control methodology follows to enhance the system through a regenerative braking power transfer technique. A proof of concept is then demonstrated and options for scaled up testing discussed. Finally, a cost comparison analysis is presented that juxtaposes BEST with pumped hydroelectric and battery energy storage technologies.
dc.description.degreeM.S.
dc.identifier.urihttp://hdl.handle.net/10125/101323
dc.languageeng
dc.publisherUniversity of Hawaii at Manoa
dc.relationTheses for the degree of Master of Science (University of Hawaii at Manoa). Mechanical Engineering.
dc.subjectBuoyant energy storage technology
dc.subjectEnergy storage
dc.titleDevelopment of utility scale buoyant energy storage technology
dc.typeThesis
dc.type.dcmiText

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