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Paul Englher | ABC News
By Jo Nova
Just how wise is it to have a grid dependent on all this fragile infrastructure?
Nature seems to be telling us something about adding another 10,000 kilometers of vulnerable transmission lines.
Yesterday six high voltage transmission lines collapsed in Victoria leaving half a million people without electricity for hours. But only a few weeks ago five towers collapsed in Western Australia putting 30,000 in the dark. And out in Kalgoorlie, when the gas backup plants failed, thousands of people went for days without power in 40 degree heat. Some people were unable to call triple zero, freezers full of food were spoilt and nearly everything left to buy had to be paid for in cash.
In Victoria the towers fell at 1:10pm during a storm. Their loss triggered the shut down of 4 large coal power units at Loy B Yang taking out 2 GW of generation. It took three hours to get one turbine back on line, and eight hours to restore the second. Everyone is talking about “the coal fired outage” but about half the wind power running at the time was also lost, and over the […]
By Jo Nova
Our cities are more fragile than we imagine
During the winter storm called “Elliott” last Christmas, gas pipes came close to freezing in New York. The gas shortages are not just deadly themselves in cold weather, but more of the electrical network is dependent on gas now rather than coal, and therein lies double jeopardy. As the gas crisis escalated, so did the electrical one: at its worst there were “90,500 megawatts of coincident unplanned generation unit outages, derates and failures… “. This was on top of 37,000 megawatts of generation that was already out of service, so 127 gigawatts in toto*. Some 18% of the normal resources of the Eastern Interconnection was missing.
At 4:25am on Christmas Eve in North Eastern USA the grid frequency fell to 59.936 Hz, just below the trigger point of 59.95 Hz.
If the gas had stopped flowing completely during the big freeze that lasted five days, water pipes would have frozen, and not only would the water stop flowing out of taps, and toilets stop flushing, but pipes would have burst — rendering thousands of apartment blocks and offices unusable, and possibly water damaged too.
Somehow, like a disaster […]
Image by Vicente Godoy from Pixabay
By Jo Nova
We can’t even run a cement factory all day anymore
Get your candles for summer! Unlike the last three years the Australian national grid won’t be rescued by another cooler La Nina this year. Fears of rolling blackouts are fraying nerves at The Australian Financial Review Energy & Climate Summit. The transition is described as stuttering, gridlocked, faltering, and the government as “desperate”.
Things are so bad, former CEO’s of major generators are warning that “the lights are going to go out” and accusing one Energy Minister of speaking “complete and utter horseshit” because they don’t think we need reliable peaking gas plants to replace coal power. Said Energy Minister has responded by refusing to even take his calls. That’s really going to work. Meanwhile Japan is getting nervous just watching us, afraid we have screwed things up so badly we can’t be relied on to keep sending them gas.
Not only is summer nerve-wracking, but things are already so bad, one of our largest cement producers is shutting down nearly every day because it can’t afford to pay for the peak electricity spikes even in springtime. Here in […]
By Jo Nova
With South Africa only weeks away from the start of winter, the head of the State owned Eskom warns there will be the worst blackouts on record, which is really something because some people are already going 10 – 12 hours a day without electricity at the moment.
The country is allegedly at Stage 6 blackouts with “Stage 8” appearing to be a near certainty (if not there already). But apparently they are making plans to invent a “Stage 16” just in case they need it.
“Luckily” South Africa may meet Climate Goals to cut emissions by 2030, though possibly destroy their civilization in the process.
SA may face power cuts of up to 32 hours, says Eskom
Johannesburg – South Africans should brace themselves for the possibility of being plunged into the worst darkness ever since the start of load shedding, as load shedding up to stage 16, meaning an unspecified 32 hours of power cuts, is anticipated to avert the total collapse of the grid owing to mounting demand.
A document titled “voluntary” NRS048-9 edition 3, which would in unforeseen emergency circumstances allow Eskom to implement drastic load shedding beyond stage […]
By Jo Nova
The biggest blackout has hit South Australia since the statewide crash of 2016. It’s due to a weather calamity, but the renewables state is struggling to keep the frequency stable for a whole week without the rest of the national grid to lean on. This time they have the back up generation, but they’re going to great lengths now to stop the surges from solar and wind — there’s no where to dispose of excess electricity…
On Saturday afternoon a storm system blitzed out 423,000 lightning strikes and brought down some 500 lines, including the Heywood interconnector that joins South Australia (SA) to Victoria. That is out of action until Friday, so for a whole week the Star Renewables State of South Australia is on its own — Islanded from the national grid. The test is here, and right now at 6am they’re running on 80% fossil fuels and 18% wind, plus millions of dollars has been spent on frequency control, and they’re trying to turn off the solar panels.
The storm caused blackouts affecting 163,000 customers or roughly 18% of the state. Power was restored for most within hours, but there were still 35,000 properties without […]
Just an update on South Africa: Blackouts continue, and the people are not happy:
These are being describes as the worst blackouts since the ANC came into power in 1994.
Residents block roads in Tembisa in South Africa against rising prices, high living costs and water and electricity cuts.#SouthAfrica #Tembisa #Protest #BreakingNews pic.twitter.com/GknLuNtGR8
— We Are Protestors (@WeAreProtestors) July 20, 2022
Some are so desperate for electricity they are rewiring substations and ending up in hospital:
Mini substation blows up in face of man trying to illegally reconnect it
Reeshni Chaslyn Chetty, The South African
A Johannesburg man who tried to illegally reconnect electricity faced injuries after he allegedly opened an electricity substation and it blew up in his face.
The spokesperson revealed that there is a ‘serious problem’ of vandalism of infrastructure in the City. This includes incidents where residents attempt to illegally operate the electricity network – they are often aided by unqualified electricians and try to reconnect or make illegal connections.
We hope he is OK.
These are eight hour regular rolling blackouts. People have Apps on the phone to tell them when their next blackout starts. People […]
The Renewable Crash Test Dummies: Test in progress
A LaTrobe Valley Coal Plant
Day #3: Huge Yallourn coal plant in Victoria loses 2 of 4 turbines. The AEMO suspends the whole market. Blackout warnings continue. Australians are being asked to conserve electricity. It’s just another day in the forced transition we don’t have to have.
How much lower can we go? Half of the generators from the ultra cheap brown coal Yallourn plant went phht yesterday. This was “unplanned”. It normally makes 20% of Victoria’s electricity. It’s owned by EnergyAustralia (China Light and Power) which is keen to close it early in 2028 and has a special secret deal with the Victorian government to do so. Perhaps China Light and Power is scrimping on those maintenance costs?
Warnings about potential blackouts exist for all five states on the National grid during the next 48 hours. The Minister for Energy, and the head of the AEMO, and several state Ministers have asked Australians to turn off all the non-essential electrical items. The NSW Minister asked people not to use their dishwasher tonight. Go first world modern nation! Meanwhile Matt Canavan wonders why people can’t use their dishwashers but the […]
All the rules are breaking.
The price market broke on Sunday night and now the interconnectors rules are broken too. The whole Eastern five state “National” grid is flying seat of the pants — the reserves are so incredibly thin that there are LOR3 forecasts — meaning Lack Of Reserve Level 3 rolled out for all five states. It doesn’t mean blackouts will happen, but it means all the protective layers of this onion are gone. The system is running bare.
UPDATE: There were some blackouts in Sydney’s northern suburbs last night. “Millions of homes” were apparently told to conserve their power in Brisbane and Sydney. Welcome to RenewableWorld!
ht/ WattsUp, Eric Worrall, and RicDre
The price market broke on Sunday night when for the first time the AEMO imposed somewhat anachronistic price setting clauses it had never used. By fixing the wholesale price in Queensland, market bidding suddenly phase-changed into a twilight world where prices were set too low (at an obscenely high $300/MWh, but not high enough now), and generators didn’t want to bid. So offers to supply “Yo-Yo’d” and the AEMO had to run emergency orders of a different kind to […]
The Queensland grid is in crisis — the forecast price for nearly the entire next 24 hours is $15,000 per megawatt hour.
I have never seen a graph like this one. It’s a “white knuckle ride” as Paul McArdle describes it. The IRPM (or Instantaneous Reserve Plant Margin) is just 8%. “This shows total Available Generation of 31,679MW ready to supply aggregate ‘Market Demand’ of of 29,201MW at this point … so a surplus of only 2,478MW NEM-wide.” But only last week there was a record day where the grid demand was 32,000MW — the highest winter demand day for years.
AEMO
Reserves are incredibly thin, not just in Queensland, but also in NSW.
AEMO
Market Notices from the AEMO are flowing like confetti. There is an Actual Lack of Reserve Level 2 (LOR2) in Queensland as of 6pm to 8pm. There is an LOR2 running for NSW as well, and an LOR1 for Victoria. If things shift up to LOR3 that means blackouts are likely, and LOR3s are forecast — in QLD tonight and in NSW tomorrow night. The margins are thinner than they look. Because extra generation on one part of the grid may […]
Tuesday was a wild day for Queensland Electricity. An explosion struck the Callide C Power Plant triggering a cascade of other plants to switch off within seconds. The massive 2.5GW fall in supply took the grid frequency in Brisbane to a hair raising 49.55Hz. How close did it come to falling over? Half a million people lost power for a couple of hours but a Statewide blackout was averted. Luckily no one was hurt.
Meanwhile the people in power were not saying “Hydrogen”, or “explosion” but the Supercritical Units at Callide are cooled with hydrogen, and there was an explosion. The owner CS Energy called it just “a fire”. But in other news reports people in the nearest town said it was “the loudest explosion they have ever heard”.
Hydrogen, it seems, is used in some coal plants as a coolant, but Holy Hindenberg, it is known to explode. (See Ohio in 2007, Pittsburg in 2017 and India, 2019) . A Union official said it appeared the hydrogen filled generator of the main turbine had suffered a catastrophic failure. And it’s all exquisitely awkward, as David Archibald points out, happening while a two day Hydrogen Conference is on — as […]
When cheap solar is expensive Badly installed solar PV makes Australia’s grid fragile
On August 25 last year there was nearly a system blackout when, improbably, three states of Australia were islanded by one lightning strike. Within seconds, trips were switching, two smelters were load shed to save the grid from collapse, and across the Eastern Seaboard of Australia frequency and voltages surged or fell everywhere. In Sydney 45,000 homes lost power for a couple of hours. Shops had to close. Trains were stopped. Passengers were stranded. Traffic signals were not working on major roads. There was chaos. Industrial users shut down in a mass of 725MW of load shedding.
The AEMO final report on that day has just come out and shows us just how fragile our grid is. This was not so much a freak accident, as an accident waiting to happen.
It turns out that another cost of cheap rushed solar panels is that many drop out with voltage spikes, suddenly going offline and leaving another hole to fill. The numbers are amazing — of panels installed in the last 2 years as many as one-third in South Australia dropped out when we needed them and […]
Australians are going to be talking about this for weeks. Indeed, the SA Blackout is the stuff of legend.
The Greens are blaming coal (what else?) for causing bad storms and blackouts. Forget that Queensland gets hit with cyclones all the time and the whole state grid doesn’t break. Some greenies are also raging against “the politicization” of the storms. Yes, Indeedy. Go tell that to Will Steffen.
We are not being told the whole story. We do know that South Australia has the highest emphasis on renewables in the world. It also has a fragile electricity network, and wild price spikes to boot. (Coincidence?) The death of a few transmission towers should not knock out a whole state, nor should it take so long to recover from. The storm struck worst north of Adelaide near Port Augusta but the juicy interconnector from Victoria runs in from the south, and goes right up past Adelaide and most of the population. Why couldn’t the broken parts of the system be isolated?
Digging around I find ominous warnings that while the lightning and winds probably caused the blackout, the state of the South Australian grid appeared to be teetering on the brink, […]
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