Brian: Your Port Augusta plans outlined in your June 2016 launch were for 1,700 collector tower modules which were expected to generate 110MW in winter and 170MW in summer. Is that still the plan?
Steve: The proposal is now to stage the project starting with a 100MW power station with 800 modules. This would do just under 50MW for 24 hours in winter and over 70MW in summer. More importantly, it will do 100MW for shorter times per day (peak hours) which is when the need is greatest.
This configuration could (would) be “cut and pasted” 5 times to give 500MW and completely replace the old to power station. Continue reading →
The federal government has announced a A$2 billion plan to expand the iconic Snowy Hydro scheme. It will carry out a feasibility study into the idea of adding “pumped hydro” storage capacity, which it says could power up to 500,000 homes.
Hydro is one of the oldest and most mature electricity generation technologies. And pumped hydro storage – in which water is pumped uphill for later use, rather than simply flowing downriver through a hydro power station – is the dominant form of energy storage globally.
But there are limitations to how much freshwater hydro can be accessed, so it’s worth looking at what alternate approaches are available. One promising prospect is to use seawater instead of rivers. This tactic could potentially help South Australia resolve its highly publicised energy problems. Continue reading →
In a speech to the National Press Club, Prime Minister Malcolm Turnbull declared that the key requirements for Australia’s electricity system are that it should be affordable, reliable, and able to help meet national emissions-reduction targets. He also stressed that efforts to pursue these goals should be “technology agnostic” – that is, the best solutions should be chosen on merit, regardless of whether they are based on fossil fuels, renewable energy or other technologies.
As it happens, modern wind, solar photovoltaics (PV) and off-river pumped hydro energy storage (PHES) can meet these requirements without heroic assumptions, at a cost that is competitive with fossil fuel power stations.
On 7th June 2016 another important step was taken towards decarbonising the South Australian economy. Solastor Australia announced detailed plans to build a solar thermal power station at Port Augusta. Continue reading →
A few months ago, new friends of ours came to visit for dinner. So shocked were they by the squat television in our living room that they insisted we accept a flat-screen version they had going spare.
Now, I’m usually of the ‘use it until it wears out’ school when it comes to my possessions and I was quite fond of the old box we had – its colours were still fine, it did its job. It was far from obsolete.
Thankfully, amazingly, over 250 senior faith leaders across the world have added their names to this combined call for urgent action on climate change. I’m flying to New York for 50 hours on the ground to witness the formal handover of this joint statement to the current President of the United Nations General Assembly.
One of my vivid boyhood memories is of scrambling amongst granite outcrops of the Canadian Shield in the shimmering heat of a July afternoon.
I emerged from the forest into mottled sunshine and stretched out on flat, lichen-covered rocks, high above the black waters of a quiet lake. Stately white pines touched the sky. Underfoot was a cushion of sharply perfumed pine needles. The air was calm.