Antinuclear

Australian news, and some related international items

Seawater pumped hydro could help South Australia

Snowy Hydro gets a boost, but seawater hydro could help South Australia, ABC News, 17 Mar 17 The Conversation  By Roger Dargaville, University of Melbourne “………could this technology help to ease South Australia’s energy crisis?

The Melbourne Energy Institute (MEI) report on Pumped Hydro Opportunities identifies several potential seawater PHES locations in South Australia.

This includes a very promising site at the northern end of the Spencer Gulf, with significant elevation close to the coast and close to high-capacity transmission lines.

The Department of Defence manages this land, and discussions are ongoing as to how the project might be designed to not interfere with the department’s operations on the site. A win–win development is the primary design aim.

The MEI study suggests that PHES could be delivered at around $250 per kWh of storage.

This compares well with utility-scale lithium ion battery storage, which currently costs of the order of $800 per kWh, although recent announcements on Twitter from Elon Musk suggest this might be coming down towards $500 per kWh.

The Spencer Gulf site has the potential to provide at least 100 megawatts of dispatchable generation, effectively making the wind and solar generation in South Australia significantly more reliable.

The Australian Renewable Energy Agency (ARENA) will help fund a feasibility study into the technology, working with partners Energy Australia, Arup and MEI.

If the facility is ultimately built, it could become a key element in SA’s bid to avoid future power blackouts.

Dr Roger Dargaville is the Deputy Director of the Melbourne Energy Institute. He is an expert in energy systems and climate change.

Originally published in The Conversation     http://www.abc.net.au/news/2017-03-17/how-seawater-hydro-could-help-south-australia/8363054

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March 18, 2017 - Posted by | energy, South Australia

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