South Australia without wind turbine electricity again (Anthony Watts, Andrew Bolt, Herald Sun)

Link: http://www.heraldsun.com.au/blogs/andrew-bolt/sa-loses-power-in-anotherwind-farm-fail/news-story/8e5db34f658a3153f7f0a8d91a077b82

South Australia loses power in another wind farm failure Andrew Bolt, Herald Sun February 8, 2017 South Australia's wind farms fail again, grinding out just 2 per cent power when the wind's die in a heatwave.

Result: blackouts to 40,000 homes as the temperature soars above 40 degrees. And lives put in danger by this green madness.

Widespread power blackouts were imposed across Adelaide and parts of South Australia with heat wave conditions forcing authorities to impose load shedding.

About 40,000 properties were without electricity supplies for about 30 minutes because of what SA Power Networks said was a direction by the Australian Energy Market Regulator.

The temperature was still above 40C when the rolling blackouts began at 6.30pm to conserve supplies as residents sought relief with air conditioners...

SA Power Networks said in a tweet tonight: “AEMO has instructed us to commence 100MW rotational #load shedding via Government agreed list due to lack of available generation supply in SA.’’ The interconnector bringing most coal-fired backup from Victoria was working flat-out at the time. South Australia simply did not have enough electricity generation of its own.

Once again it is important to recognise five things.

1. South Australia has the country's most expensive and yet most unreliable electricity because it has scrapped its coal-fired power and relies instead on wind power for 40 per cent of its electricity.

2. Expensive and unreliable power costs South Australia jobs, and risks lives as the poor and old cannot afford - or get - cooling in a heat wave or warmth in a cold Page 1

snap.

3. South Australia cannot rely for long on backup from Victoria, which has its own renewable energy targets that have already helped to force the announced closure of the giant Hazelwood coal-fired generator, responsible for up to 20 per cent of Victoria's power.

4. What we're seeing in South Australia will spread to the whole country if Labor is elected federally and imposes its own renewable target of 50 per cent by 2030.

This will force us to use triple the wind, solar and hydro power we do now (but without adding any more dams) at an estimated cost of $48 billion. Our electricity will become as unreliable as that of a Third World state. Or South Australia. Same difference.

5. And none of this pain - the expense, the lost jobs, the risk to health - will make the slightest measurable difference to global warming. The whole point of switching to green power is to cut the emissions that are blamed for causing the world to warm. But the cuts we make in Australia by building wind farms are too tiny to make any difference that any scientist can measure. It is all pain, no gain.

Madness. This man-made global warming and anti-fossil fuels policy is a deliberate policy to make us poor.

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Link: https://wattsupwiththat.com/2016/10/05/australian-electrical-system-operatororders-wind-farms-to-cut-back-production-in-wake-of-blackout/ See link above for original document and embedded hotlinks.

Australian electrical system operator orders wind farms to cut back production in wake of blackout Anthony Watts / October 5, 2016

http://cartoonsbyjosh.com

Ten South Australian wind farms told to limit generation after statewide electricity blackout TEN South Australian wind farms have been ordered to limit generation in the wake of the disastrous statewide power blackout because the national electricity market operator has declared they have not performed properly.

The state’s biggest wind farm, at Snowtown, is among those which the Australian Energy Market Operator has targeted in its “management and analysis” of last Wednesday’s unprecedented power outage as it gradually restores the power network.

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The move will prompt further questions over whether renewable energy jeopardised electricity grid stability and triggered the cascading blackout, which started when fierce winds damaged 23 Mid North transmission towers and severed three high-voltage lines. –Paul Starick, The Advertiser, 4 October 2016 This comes on the heels of a damning report that says that the power instability of wind farms dropping out caused the grid to collapse. The report, by the AEMO, said: Event The predicted weather front moved through South Australia on the afternoon of Wednesday 28 September 2016, including high winds, thunderstorms, lightning strikes, hail, and heavy rainfall.

The weather resulted in multiple transmission system faults. In the short time between 16:16 and 16:18, system faults included the loss of three major 275 kV transmission lines north of Adelaide. Generation initially rode through the faults, but at 16:18, following an extensive number of faults in a short period, 315 MW of wind generation disconnected (one group at 16:18:09, a second group at 16:18:15), also affecting the region north of Adelaide.

The uncontrolled reduction in generation resulted in increased flow on the main Victorian interconnector (Heywood) to make up the deficit. This resulted in the Heywood Interconnector overloading. To avoid damage to the interconnector, the automatic-protection mechanism activated, tripping the interconnector. In this event, this resulted in the remaining customer load and electricity generation in SA being lost (referred to as a Black System). This automatic-protection operated in less than half a second at 16:18. The event resulted in the South Australia regional electricity market being suspended.

Source: https://www.aemo.com.au/Media-Centre//media/BE174B1732CB4B3ABB74BD507664B270.ashx

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