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Showing posts with label CST. Show all posts
Showing posts with label CST. Show all posts

Wednesday, February 15, 2017

Thermal, wind and demand forecasting failed in South Australian Heatwave: AEMO

AEMO have released their preliminary report into the loadshedding and blackout of 90,000 south Australian residents and businesses during the extreme heatwave on 8 February.

In their summary of the event AEMO outline three main causes for the failure to match generation to demand. They specify that supply was rapidly changing in the period prior to the peak at 18:00, but the problem came down to:

  • Demand was higher than forecast
  • Wind generation was lower than forecast, and
  • Thermal generation capacity was reduced due to forced outages

When you analyse the report it becomes clear there was available capacity (Pelican Point 2) that could have been brought on line to meet the demand, but the market based processes of AEMO failed.

It is important to emphasise here that Adelaide and most of South Australia on Wednesday 8 February was experiencing extreme temperatures in the middle of an exceptional heatwave. Climate scientists have been predicting that heatwaves would get more intense. This sort of extreme heat event is in line with their predictions.

Adding to the extent of the issue, AEMO ordered at the evening peak at 18:03 100MW of load shedding to balance supply versus demand, but it appears SA Power Network shed 300MW, much more than was required.

I reported initially on this event the day after, on February 9: AEMO orders South Australian #heatwave blackout while Gas turbine remains idle.

Victorian Liberals declare war on renewable targets, jobs, investment



The Liberal party in three states - Victoria, South Australia and Queensland - vowed to drop state based renewable energy targets if elected. This follows Federal Liberal Party war on renewables and climate policy conducted since Abbott took power in 2013, continued under Prime Minister Turnbull.

While climate action at the Federal level has followed a rollercoast ride in the past two decades, states are increasingly taking more action to protect their citizens.

In the latest round of attacks at the Federal level, Manchester University climate change PhD student Marc Hudson argues that what we are seeing is not actually a policy battle, but a politics battle, and one that has been going on since at least 2000.

With reduction of the federal Renewable Energy Target and no plan as yet to extend it, the Labor states of South Australia, Victoria and Queensland, and the ACT, have all set in motion state renewable energy targets.

Monday, April 6, 2015

Port Augusta: Transition from #coal to #solar critical say locals


First published at nofibs.com.au

The Port Augusta community have called for South Australian Premier Jay Weatherill to step up to help fund construction of a solar thermal power station. The call from Repower Port Augusta comes in reponse to an Alinta Energy assessment (Draft Milestone 3 Balance of Study Report March 2015 PDF) that found a solar thermal power station was still uneconomic to build without government support. The proposed 50MW project is estimated to cost $577 million, about $150 million greater than it's commercial viability.

Australia currently does not have any 'baseload' concentrating solar thermal with molten salt energy storage power plants. The Port Augusta proposed power station could be Australia's first using a Concentrating Solar Thermal (CST) power tower with up to 15 hours molten salt energy storage included.

These type of CST plus molten salt energy storage power plants are already producing electricity or under construction at Crescent Dunes in Nevada, USA (110MW), Gemasolar in AndalucĂ­a, Spain (20MW), Planta Solar Cerro Dominador at Calama, Chile (110MW under contruction), Rice Solar energy project in California, USA (150MW), and Supcon Solar Project in China (50MW under construction).

Sunday, December 29, 2013

India innovating with solar PV, poised to become a global solar leader

Yesterday I saw an image shared on my Facebook timeline. It was of solar PV panels installed over an irrigation canal in India. This has the obvious advantage of a double impact for sustainability. Low carbon power is generated by the panels feeding into the transmission grid, and the panels shade the water in the irrigation canal reducing evaporation loss thus saving a scarce resource used for drinking and agriculture.

I googled for more information and posted the image in a tweet. This has become one of my most popular tweets to date, obviously striking a responsive nerve.

Tuesday, October 26, 2010

Brayton Cycle Solar Thermal power under development by CSIRO


Image: CSIRO

The CSIRO has begun installing 450 large heliostats (mirrors) for a Brayton Cycle solar thermal tower system, the largest of it type in the world, located at the CSIRO National Solar Energy Centre in Newcastle.

The mirrors are manufactured locally at Wyong on the Central Coast by Performance Engineering, a company specialising in automotive manufacturing. The panels are manufactured with a lightweight steel frame with a simple design highly suited for mass production for commercialisation of the technology.

Thursday, July 22, 2010

Victorian Premier announces generous feed-in tariff for large scale solar power

The people of Brunswick want climate action - Close Hazelwood Mr Brumby
While most people were watching the Federal political sphere, John Brumby, the Victorian Premier, surprised many with a major announcement on promotion of building large scale solar power to promote Victoria as the solar capital in Australia. The scheme will result in 5 to 10 concentrating solar thermal (CST) power stations to be built in the states' north and west by 2020, as well as medium scaler rollout of solar photovoltaic systems.

But action on climate change is a hot state political issue too, with a highlevel active campaign to close down the Hazelwood power station in the La Trobe valley, one of the dirtiest most poluting coal fired power station in the Industrial world. Lst Saturday over 30 community events were held in a National Day of action to Replace Hazelwood. As part of global action on climate change organised through 350.org, campaigners are organising a protest on 10/10/10 outside the Hazelwood station.

Once the Rudd Government announced deferral of the Emissions Trading Scheme for 3 years and lost public confidence the pressure transferred to state governments to act on climate, even though such action is likely to be piecemeal.

The Victorian announcement is for a generous feed in tariff for large scale solar thermal power plants to start the transition from coal-fired power to renewables as part of ithe state Labor Government's forthcoming policies for action on climate change. The target of 5 per cent of the state's electricity from solar by 2020 is in addition to the 20 per cent power from wind by 2020. The announcement comes as a new report confirms that Victoria could supply more than 100 percent of it's electricity from renewables.

John Brumby, while visiting Silex's solar test facility in Bridgewater, said "This commitment to a sustainable future for Victoria should see the establishment of between five and ten large solar plants across regional Victoria," Mr Brumby said "As a result of this initiative, Victoria will have up to 25 per cent of its power coming from renewable energy by 2020. This initiative will also provide new economic opportunities in regional Victoria, generating between $1.5 and $2 billion in new solar investment in Victoria."

The State Government has set an interim target of generating 500GWh of solar power by 2014. "This is in addition to power generated by the Silex facility and represents a massive increase on the present level of solar generation Australia-wide and is enough to power more than 90,000 homes." said Brumby.

The cost to household electricity bills was estimated at $5-$15 a year from 2014.

Gavin Jennings, the Victorian Climate Change Minister also announced action to support medium scale solar energy, such as installation of solar panels on large suburban shopping centres, "Generating their own electricity means businesses will not only help reduce emissions but they will save money on their bottom line - a win for business and the environment." he said. A Medium Scale Working Group would be established by the State Government to advise on what type of actions are needed to drive medium-scale solar power.

The Federal Government was urged to put a price on carbon to further drive investments into the renewbles sector to deliver deeper emission cuts. "A price on carbon is necessary to deliver the very deep reductions in emissions we need, but we need to forge ahead and tackle climate change through measures such as these." said Brumby.

The Federal Government of Julia Gillard has maintained the commitment by Kevin Rudd to reassessing an Emissions Trading Scheme in 2012, although the Greens are pushing strongly for the introduction of an interim carbon tax to start July 1, 2011.

The announcement from the State Government comes as part of a forthcoming policy on climate change in the lead up to the state election at the end of 2010. The Government is considering an initial 25 per cent phaseout of the coal fired Hazelwood power station, one of the most polluting and dirtiest in the western industrialised world, while climate and environmental activists are urging a total closedown of Hazelwood over two years.

Environmentalists and Greens welcome solar initiative


The announcement has been welcomed by environmentalists. "This is a bright move that will help Victoria get ahead of the pack in the shift to renewable energy", said FoE campaign coordinator Cam Walker. "It will be a popular initiative among the millions of Victorians who are looking for strong leadership on climate change. By fast-tracking more clean-energy projects like this, the Government will soon be able to replace the dinosaur Hazelwood coal-fired power station."

"In 2006 Premier Brumby committed to introducing a "landmark" Climate Change Bill so we expect that a centrepiece of the Government's Climate Change White paper to be released this month will be strong new climate change laws." said Cam Walker, "The White Paper should deliver a whole of government Climate Change Bill which sets ambitious emission reductions targets and is benchmarked on the Climate Change (Scotland) Act, " he said.

Environment Victoria also welcomed plans by the Brumby Government to fast-track the development of large scale solar power for Victoria. Environment Victoria's Campaigns Director Mark Wakeham said, "Today's announcement will make Victoria much more attractive as a place to build large scale solar power stations which can contribute to replacing polluting coal-fired power stations like Hazelwood within the next term of government."

"Victoria is likely to become the preferred state for large scale solar as a result of the premium payment provided by the feed-in tariff. If we can get projects off the ground quickly we may well be able to exceed the 5 percent target." said Mark Wakeham, "However if we want to lead the nation in both large scale and small scale solar we still need to improve the solar feed-in tariff for households and small businesses to catch up to the incentives offered in NSW and the ACT."

"In the absence of national leadership and a price on carbon Victoria will need to take further measures to support energy efficiency and clean energy to ensure that we can replace the whole of Hazelwood power station and achieve significant cuts to our greenhouse pollution in the next term of government." he said.

The state Liberal party came in for criticism on climate action, "So far the only climate policy we've seen from the Coalition is a plan to stymie the development of wind power. If Ted Baillieu wants to appeal to the vast majority of the community who want action to reduce greenhouse pollution he needs to get some runs on the board quickly." concluded Mark Wakeham.

The Greens have also welcomed Victorian Premier John Brumby's announcement of a gross feed-in tariff for large-scale solar plants and urged both Julia Gillard and Tony Abbott to embrace a national feed-in tariff to support all forms of renewable energy. Australian Greens Deputy Leader, Senator Christine Milne, said today "A properly designed feed-in tariff is recognised as the reason Germany, Spain and some US states have seen tremendous booms in renewable energy, creating jobs and investment, cleaning the air and reducing emissions," Senator Milne said. "Premier Brumby is to be congratulated on his decision today. He is leaving Julia Gillard in his wake, although he still has a fair way to go to catch up with the Greens."

It is likely Prime Minister Gillard will announce grants for development of solar projects as part of the Government election campaign. Senator Milne criticised this approach for renewable energy as not strategically developing the sector. "One off, ad hoc grants do nothing to develop the industry. They will see Australia importing technologies we have driven offshore through lack of ongoing support."

"If we want to create jobs and long-term investment, as well as drive the transformation to 100% renewable energy, we need a well-designed national feed-in tariff." said Senator Milne "While I welcome Premier Brumby's announcement, the expansion of state-based schemes can lead to perverse outcomes for investors, particularly in the context of the national renewable energy target."

Report confirms Victoria's abundant renewable energy resources


A new report for the Victorian Government by Engineering consultants Sinclair Knight Merz - Renewable Resources Victoria: the renewable energy potential of Victoria - has confirmed that Victoria's future energy needs could be entirely met from renewable energy sources, including wind, solar, geothermal and wave.

According to the report renewable energy could provide up to eight times Victoria's current energy consumption and double the the estimated future demand by 2030.

Minister for Energy and Resources Peter Batchelor said on the release of the report "For nearly a century, Victoria has relied heavily on coal, oil and gas to supply us with relatively cheap but highly polluting energy. Now, we must reduce greenhouse gas emissions while our demand for energy continues to grow. As we begin this transformation, this new report confirms that Victoria is well placed to seize the opportunities that will arise, creating new skills, new jobs, new investments and new ways of making and using energy."

The report was based on a similar study for the UK which found that it was unlikely the UK had sufficient renewable energy resources to meet it's energy needs. While talking up the report Peter Batchelor also stressed moving to a low carbon economy would not happen overnight, "Technology for harnessing some of these resources is still in its infancy and very expensive. In addition, as technologies develop new infrastructure will be needed and must be appropriately managed and located to take into account social and environmental impacts," he said.

The initiative by the Victorian Government follows a report by Beyond Zero Emissions and the Melbourne Energy Institute at Melbourne University of a detailed and costed plan of action on How to achieve Zero Carbon Emissions by 2020 for Australia.

Sources