freediver
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Gnads wrote on Mar 10 th, 2025 at 1:38pm: freediver wrote on Mar 10 th, 2025 at 1:31pm: Gnads wrote on Mar 10 th, 2025 at 1:22pm: freediver wrote on Mar 8 th, 2025 at 12:33pm: Gnads wrote on Mar 8 th, 2025 at 11:36am: freediver wrote on Mar 8 th, 2025 at 10:40am: Quote:We need coal fired power as part of our energy mix because wind, solar and batteries are not reliable. No-one seemed to think it was a problem when a large chuck of QLD lost power for a long time because a coal fired power station threw a rotor. We will have rolling blackouts by the time the coalition get their first nuclear plant built, if they don't come to their senses. BTW, we also have gas, conventional hydro, pumped storage systems, electric cars and various other grid-connected batteries. Callide C caused 500,000 out of 5.69 million QLDers to be without power only for a short time - as Callide B (700 mw) was still operating & the QLD grid still had Gladstone(1,680mw), Stanwell(1,445mw), Tarong(1,400 mw), Tarong North(443 mw), Kogan Creek(750 mw),Darling Downs Power Station(630 mw), Millmerran(850 mw) with total capacity of 9,343 mw. & Wivenhoe pumped hydro(570 mw) operating. The 7 "run of river" hydro stations in QLD only produce between 1.6 mw to 88 mw of power. The largest being Wivenhoe which is also pumped hydro as well as a smaller river run system . It can generate 570 mw but is only capable of 10 hours generation before the top dam has to be refilled. It takes 14 hrs to pump water back up with the generator becoming a 240 mw pump motor. 7 hydro stations with only 650 mw capacity if that. Don't even mention batteries or electric cars at home as grid suppliers - it's a nonsense. Why is it nonsense? I know people who are running their appliances off one as we speak. As EV's become more popular, this is a potentially huge supply of storage. Quote:The rotor is on the steam driven turbine, the coal fired plant would have still been available.  Quote:If the generator fails it would not matter if the plant was driven by coal, wind, solar or hydro the plant will shut down. Except all those other technologies are smaller and more distributed, which is why we have not had a single blackout caused by them. A failure of a single piece of equipment will not disrupt the entire grid. Tell me FD - what are EVs bought for? To commute - to drive from A to B - not to be powering appliances in a home. Whilst it was doing that it wouldn't be charging for it's next days use. That's a lot of money( $50k or $60k) to do something a $5000 6 kw rooftop solar system and battery will do. Plus most homes & local electricity grid infrastructure isn't up to scratch. The additional cost of the converter is pretty much nothing. It comes standard with the vehicle. I know someone who is right now running their household from their hybrid vehicle. Obviously it works better if you work from home, but even if you do not, you are still going to be home for most of the day.What they are bought for, and what they can be used for, are not necessarily the same thing. Hence my observation that EV's are a huge opportunity for storage that are not susceptible to either grid or supply failure. If you have home PV as well as an EV, even better. If the grid goes down, you can charge your vehicle during the day and get power 24/7, indefinitely. The EV storage option gets you around the fact that the grid might not be up to scratch. People will still want a car, even if they have solar PV, and it won't be long until petrol vehicles are obsolete. So the plebs just go to work and stay home the rest of the time? a Hybrid vehicle - so it still has a petrol motor.  And why are they doing that? To try & be mega trendy? Yeah nah. It's none of your business why they do it. What matters is, they are doing it, and it is making the power supply more reliable.
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