I would be very doubtful of the potential of pumped …

Comment on Realistic Re-Power Alice plan for 100% solar by Bob.

I would be very doubtful of the potential of pumped hydro in Alice.
Some simple arithmetic shows that to store 1 kW hr needs 430 cubic meters times m head.
There would be sites with 200 m head on the MacDonnell Range, but the environmental and sacred sites issues might be insurmountable.
There is a far simpler way to increase the proportion of solar power.
Pumping water from Roe Creek accounts for a significant part of Alice Springs’s electricity use. This has always been done at night to use off-peak power.
With enough surplus solar energy water could be pumped in the daytime instead, reducing the need for night time power.

Recent Comments by Bob

Desert Song’s fire burns bright
Morris has put together a wonderful festival.
I missed the gorge, but got to the Saturday night at Araluen.
Outstanding performance, where else could you experience anything like it?
Congratulations to Morris for his amazing effort.


Volunteers are beating buffel
Great to see this story and for the volunteers to get some acknowledgment of their effort. Spencer Valley is now a credit to all who have spent time controlling buffel.
To be fair to Parks, I believe that they are doing some work to stop buffel invading sensitive areas.
The cost of manually fighting buffel on a broad scale is huge.
Research into technology for buffel control is urgently needed.
A first step would be a drone that can quickly map clumps of buffel to save the time consuming search for it on foot.
This should not be difficult with existing technology.


Rocky Hill vineyard threat to our drinking water
In response to the two Davids.
These problems take some time to become evident, and then are very expensive to fix.
How much monitoring do you think has been done under the irrigated area?
The limitations of the Roe Creek borefield are that the large fractures, which have made it such a wonderful aquifer to date, close up with depth. Nothing to do with filtration.
The cost of developing Rocky Hill is huge, but the time is not all that distant when there will not be a choice.


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