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.