A study on the viability of a Floating Solar Farm on the Ross Dam
This is a guest post by Elly Hanrahan, an intern for the North Queensland Conservation Council. All views expressed are representative of Elly and not necessarily of the NQCC.
Townsville is currently experiencing its driest 11-month period since records began in 1841. With no action on water security from any level of government, desperate residents have formed the newly created Facebook group called ‘Water For Townsville Action Group’ in order to come up with a plan to secure Townsville’s water supply into the future.
At the moment, Townsville City Council is pumping 130 mega litres (ML) of water a day from the Burdekin and at a cost of roughly $27,000 per day. Even whilst pumping at full capacity, the dam level continues to drop with Townsville residents using roughly 1,700L per day- more than eight times the average usage of Brisbane residents. Evaporation also plays a large part in the shortage; given the extraordinary size of the shallow dam, Councillor Paul Jacob confirmed to the Townsville Bulletin that we lose between ‘20 and 40 mega litres per day due to evaporation alone’.
It is obvious that prolonged pumping is not a sustainable solution as it is both expensive and inefficient. Many solutions have been proposed such as duplicating the Haughton pipeline from the Burdekin, desalination systems, recycling plants and the proposed construction of the Hell’s Gate dam. One of the more creative solutions put forward on the Water Action Facebook group was a floating solar panel array on the Ross River Dam itself.
This, the fourth post in our water security series, began as a response to the first of them, the Townsville Water Discussion Paper, and addresses an issue which none of the first three looked at. Parts 2 and 3 are here and here. This is a guest post by Malcolm Tattersall. Once again, views expressed are the author’s, not those of NQCC.
When I read Gail Hamilton’s post six weeks ago I agreed with nearly all of it but noticed a gap which was potentially important, i.e. the impact of climate change on our water security: the ‘Regional Water Supply Security Assessment’ from the Department of Water and Energy Supply (2014) (pdf here), upon which she relied for her ‘current situation’ section, didn’t consider climate change effects at all.
This is the third part in a four-part series that discusses issues about water in our region. Read part 1 here. Read part 2 here. Part four asks how climate change will affect our region’s water security.in a series that discusses issues about water in our region.
Coinciding with the NQCC AGM, we hosted a forum about the Hell’s Gate Dam feasibility study currently being conducted by Townsville Enterprise Ltd. NQCC was grateful to have the on-hand expertise of Patricia O’Callaghan (TEL CEO), David Lynch (principal economist for the study) and Jon Brodie (waterways expert). Here is what we were told about the dam, the study and the questions that came from the audience.
This is the second part in a four-part series that discusses issues about water in our region. Read part 1 here. Part three is a summary report of information shared by Townsville Enterprise Ltd. about the Hell’s Gate Dam feasibility study at our forum that was held on 10 October. Part four asks how climate change will affect our region’s water security.
Guest post written by Vern Veitch. All views expressed are the author’s and not the official opinion of NQCC.
With Townsville in a drought and under Level 3 water restrictions, the public are asking a lot of questions. Water falls out of the sky so why does it cost so much? Why don’t we just build another dam? If the dams are on higher ground, then why does water have to be pumped?
This is the first part in a four-part series that discusses issues about water security in our region. Part two explores dam infrastructure options, and part three is a summary report of information shared by Townsville Enterprise Ltd. about the Hell’s Gate Dam feasibility study at our AGM and forum. Part four asks how climate change will affect our region’s water security.
Guest post written by Gail Hamilton. All views expressed are the author’s and not the official opinion of NQCC.
Townsville has an excellent water supply system, with highly treated and very safe water sourced from the Ross, Paluma and Burdekin dams.
While the Ross is our main supply dam, it is highly variable, with a limited catchment and low rainfall. The Paluma Dam is situated in the wet tropics and is much more reliable, but can only supply 30 ML per day. The Burdekin Dam is a huge system, with over 1 000 000 ML per year of water allocations, some of which is not committed. Townsville has 120 000 ML of allocation from the Burdekin.