For the past five years we’ve been tracking the superb renewable energy activism of the Port Augusta community in South Australia in their quest for a solar thermal power station.
2016 marked the end of six decades of coal-fired power generation at Port Augusta and now we finally have the announcement of a replacement that will provide dispatchable renewable energy, using CSP (Concentrated Solar Power) technology.
It’s quite brave leadership from the South Australian State Government. They’ve had to put up with a year of denigration and ridicule from the Federal Government for an ambitious transition-to-renewables program. But they’ve pushed on relentlessly, culminating in the announcement of the world’s biggest battery storage last month and now the solar with storage plant announced this week.
To protect Australians from worsening climate impacts (eg more destructive storms, intense heatwaves and worsening bushfire conditions) and in line with our Paris Agreement commitments and carbon budget constraints, Australia needs pathways to transition as rapidly as possible away from coal, oil and gas to reach net zero emissions by 2050.
But the Finkel review has little to say about our Paris Agreement commitments. Instead it focuses on ensuring a reliable electricity grid and reducing the price of electricity.
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.