Xu, Peijie (2016) Deepwater pumped storage investigation. Coursework Masters thesis, University of Southern Queensland. (Unpublished)
Abstract
Australia’s geological location and climate presents huge potential to develop large-scale solar energy production due to the combination of factors of dry climate and insolation. However, the increased penetration and associated midday peak of solar energy does not match the local peak load demand of eastern Australian grid. As increasing solar penetration targets are set to meet Australia’s Kyoto protocol targets, excessive renewable energy generation in grid will has a significant impact on grid resilience to respond to faults, and electricity costs due to intrusion of excess renewable energy into the midday base-load steam turbo-generators output. This thesis explores a potential energy storage solution for excess solar energy. Here the Deep Water Pumped Hydro-Energy Storage System (DWPHESS) is developed from traditional Pumped Hydro-electricity Energy Storage Systems. The project is to determine the DWPHESS feasibility through review of storage to load shift excess renewable source energy. A conceptual model has been developed in HOMER Energy simulation software, with the inclusion of separate SIMPOWERSYSTEMS model to account for HV DC link energy transmission losses for connection of DWPHESS. The investigation also identified possible sites around Australia to connect to the Eastern Australia Grid, West Australian grid and also to export energy to south-east Asia. The outcome of this thesis is a conceptual system feasibility review, with energy cost results result based on the systems levelized cost of electricity (COE). The thesis also demonstrated the possibility of developing PV electricity industries specifically for providing energy storage for the Australian grid, reviewing the potential of transferring Australian PV large array electricity via Darwin to high demand regions and growing to international power market in Asia.
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| Item Type: | Thesis (Non-Research) (Coursework Masters) |
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| Item Status: | Live Archive |
| Additional Information: | Current UniSQ staff and students can request access to this thesis. Please email research.repository@unisq.edu.au with a subject line of SEAR thesis request and provide: Name of the thesis requested and Your name and UniSQ email address |
| Faculty/School / Institute/Centre: | Current - Faculty of Health, Engineering and Sciences - No Department (1 Jul 2013 -) |
| Supervisors: | Helwig, Andreas |
| Qualification: | Master of Engineering Sciences (Power Engineering) |
| Date Deposited: | 15 Jul 2026 23:14 |
| Last Modified: | 15 Jul 2026 23:14 |
| Uncontrolled Keywords: | Energy storage, Deep water pumped hydro-energy storage system, DWPHESS, Pumped hydro-electricity energy storage system, COE |
| URI: | https://sear.unisq.edu.au/id/eprint/53246 |
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