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- Today
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Trumps social media postings. It has been reported that in a five hour period one recent evening, Trump made 160 posts on social media. There are 300 minutes in 5 hours. That means he created and posted something just aboug every two minutes. How long does it take you to create a short post and upload it here? And the grammer, spelling and syntax of his posts are free of errors in those areas. This makwes me think that either Trump has a team of writers, or is using AI to generate the content.
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Trump is starting to realise HE is not going to live for ever. Nev
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If your doctor requests that you have some sort of test done, say a blood test to check cholesterol, do you have the test, but not ask the doctor for the results? You still want to hear that, don't you, even if the doctor tells you that things are OK? Trump keeps saying that he doesn't know the results of his MRI. That in itself is not normal. Also, Trump's apparent ignoring of his physical condition runs counter to a normal person's consideration of one's mortality. Does Trump think that he will never die?
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A very small cohort of members are not sick of it.
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This bloke has some very informative videos regarding all things nuclear and energy. Illinois EnergyProf https://www.youtube.com/@illinoisenergyprof6878
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Still Bigger than a Birds. Nev.
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At this stage it might Just as well Be an ordinary ICE car. They ARE NOT Cheap. Nev
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The climate change debate continues.
facthunter replied to Phil Perry's topic in Science and Technology
Sychronisation is an issue with any grid AC system. We should reduce reliance on a Grid. Distance equals Losses, cost and unreliability. Nev -
The smart thing would be build some NPP and don't replace the intermittent generators that aren't needed or at least look at it without the 1970's mindset and an open mind. That is like saying if you by a car that is a lemon, lets go back to riding a horse. I wasn't a fan until I did some research. You are right it is very complex, but having a lot inverters with their high frequency switching is jut another issue the grid that has to deal with. The WTGs I use to work on had a DFIG generator (really smart bit of gear but the person who thought of it must have ben smoking good gear.) which has a converter on the rotor side of the generator. The filter capacitors use to shift there rating and would stop the turbine. In the end there was a fix but it tripled the amount of caps. Just goes to show how many parts of an inverter based system can go wrong verses a magnet spinning in a coil of wire, A few large passive capacitor banks and some switch gear. This link goes to some more inverter based issues although I believe this was caused by human error. https://www.abc.net.au/news/2022-06-23/connection-issue-causes-lights-to-flicker-across-sa/101176004 chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.aemo.com.au/-/media/files/electricity/nem/market_notices_and_events/power_system_incident_reports/2022/south-australia-power-system-oscillations.pdf?la=en
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https://www.dailymail.co.uk/news/article-15345855/Putin-says-ready-war-Europe-right-now.html?ito=social-facebook&utm_social_handle_id=164305410295882&utm_social_post_id=612678487
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The climate change debate continues.
nomadpete replied to Phil Perry's topic in Science and Technology
Such devices have been steadily installed throughout the grid, over the past 20 plus years. I was involved in commissioning some in Qld. It was originally done for phase correction back in the dayse before "alternative" energy. Advances in semiconductors has brought a newer, faster breed of active stabilisation. Barring some catastrophy, I doubt the grid is going to collapse anytime soon. -
The cost of electricity comprises direct generation costs plus the infrastructure required to distribute it and retail costs. Electricity could be extremely cheap if we decided not to extend the grid or if we reduced maintenance standards. We could decide what level of resilience we are willing to pay for. Do you think building new coal, gas, or nuclear power would reduce your bills? Would we pay through higher power bills or through our taxes? The Iberian Peninsula power cut is very complex. As the video you posted suggests, there were many failings. Even if the chain of events were precipitated by a component of the renewable system (and I don't think that is universally accepted) do we say "Oh, a failure, let's rip out the renewables and build more coal"? I think a better course of action would be to say "what went wrong and how we can prevent it from happening again." If your car breaks down, you don't swap it for a horse, even though horses were adequate transport back in the day. I imagine neither of us will suddenly change our minds, and the move towards renewables is not likely to stop and be reversed. When I post, I spend considerable time making sure my posts can be supported by references. This makes this a time-consuming activity. I think I might schedule a reminder email to myself, and I could gather as many stats of, let's say June and December (to capture high and low solar) and look for records of grid failures and see if there is a trend and if so, in what direction. Could also record price, both spot and retail (as well as daily connection charges)
- Yesterday
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We drove around with some friends in Europe (Toyota Corolla over there, Rav here) and I was really impressed with the performance for a car that size. 130KM/h highways and it did it easily and had the power to get past other cars no worries. Probably not the best for long range but around the local area they are good. A good compromise.
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Who cares about wholesale except for lying politicians, I know I certainly don't. What matters is what is delivered to the consumer! Iberian black out - Event 4 and 5 on the pdf. While there was some unusual things happening on the grid, looks like the non synchronous generation started falling over first. Like the 2016 SA blackout when we lost a couple of transmission lines. Breakers tripped and reclosed as is supposed to happen. 450MW of wind saw too many grid drops in a certain amount of time and shut down. Vic interconnector couldn't keep up and tripped and that was it. see the AEMO report, pge 6 for the summary I think chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://d1n1o4zeyfu21r.cloudfront.net/WEB_Incident_%2028A_SpanishPeninsularElectricalSystem_18june25.pdf
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I hired a Toyota Corolla Hybrid for 12 days in Broome in July. It didn't use a great deal less fuel than a regular petrol-powered car. One of the most alarming events I had with it, was - I was driving along, chatting to SWMBO and resting my hand on the gear shift lever (as I often do), and accidentally moved the lever into Neutral, whilst doing about 60kmh. The cars reaction was to apply full emergency braking immediately, nearly throwing us through the windscreen! I was quite shocked that any car maker would install a system that operates like this - especially Toyota. If we had been in heavy traffic, my inadvertent gear lever movement possibly would've caused a chain-reaction pile-up. This setup is making me shy away from Hybrids even more than I previously was unenthusiastic about them. I can't stomach the idea of major increased complexity in a car that comprises a combined petrol engine, electric motor, and a drive system battery, with all its attendant increased amounts of wiring and electronics.
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Here is a graph of the energy mix for SA for last year. To perhaps oversimplify the argument somewhat. Some people appear to want the green, orange and purple (wind and solar) or in other words, the methods of generation that do not require fuel to be transported and burned, but would rather the teal colour to be 3 times higher. As I see it, the objections to producing electricity without transporting or burning fuel are reliability and cost. On reliability, I can't really find evidence that states with more renewables have a less reliable grid. I do have a basic understanding of maintaining grid frequency. This is why synchronous condensors, grid forming inverters and batteries are being installed. Siso I have open in front of me here a report on the Spanish power cut. Grid Incident in Spain Portugal on 28 April 2025 Excess renewables generation did not cause Iberian blackout Of course, the grid is an extremely complex thing, and from time to time, things can go wrong. It seems to me, though, that solving those problems has to be a better solution than going back to the old system of just coal and gas. Of course, coal and gas is not perfect in terms of reliability. In terms of cost, according to AEOMO, th ten-year forecast is for prices to drop (not dramatically). In fact wholesale prices are lower in SA. Yes, this doesn't translate into retail prices yet. Sometimes you have to spend money to save money. When I bought my solar I added the loan montly payment to my monthly electricity bill. This made my electricity quite expensive for 4.5 years but now it is extremely cheap. Like it or not the world is moving towards more and more renewables. Businesses are making investment choices.
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What about the Maintenance when it's out of warrantee.?. Anyhow Buy what you Like. It's a free country. Electric is near maintenance free. Hybrid gives a small extra range for a High cost and More weight. The vehicle is often a poor performer also compared to a STRAIGHT Ice car . Nev
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The climate change debate continues.
facthunter replied to Phil Perry's topic in Science and Technology
What about the cost of anthropomorphic activity based Climate Change? Nev -
OK. MOST of US then, Mr Picky.
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The climate change debate continues.
pmccarthy replied to Phil Perry's topic in Science and Technology
The current government have lied and continue to lie. The $275 was just one example. We will be paying much more for a diminishing supply of electricity. Expect frequent outages. -
We have had two hybrids, both excellent. The only negative really is the harder suspension and tyres, done to reduce rolling resistance.
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I am considering a hybrid. Its not that I can't make up my mind. Its that the distance we live from our capital city, a full electric car would be marginal on range. I don't like sitting around a city waiting or looking for a place to but an extra 100km worth of power in my car. Different people have different needs.
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Please don't speak for me. Would have been better if you said "I" or maybe "some of us".
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Exactly my point. These scientist mislead the government into believing power would be $275 cheaper. We could also say NP is unsafe because the OLD CHERNOBYL,FUKASHIMA and THREE MILE ISLAND "years ago". Accidents that would not happen today! Also not science based. Unless of course old Albo just flat out lied to the Australian people, your choice. Remember the gas and oil prices spiked and than came down again when the Ukraine war started. What else have they got wrong? Bit like the NPP only last 30 years. May help the system but takes people out of paying for infrastructure making the bills more expensive for those that can't afford them or are paying most of there income on rent already. And they say that fossil fuels are subsidised.
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He's probably sleeping with the fishes, now.
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