Electricity prices

[facthunter]

You present a very Biased argument. It's easy to turn a Wind generator OFF. COAL and GAS using steam can fail without warning and usually on the Hottest days leaving an Instant Large shortfall way below demand. Batteries can provide the Quickest response Possible of any source to handle the situation till other Balancing actions are taken.  Nev

[kgwilson]

Yes my pricing was wrong. On Monday 12th of October the price peaked at $23,107.00 at 14:20.

 

https://wattclarity.com.au/articles/2026/10/12oct-nsw-at-14-20-spike/

[Siso]

What biased in that. That is the way it is. Thing failing are not just limited to coal and gas. 450MW of wind tripped off after seeing too many grid drops in a certain amount of time causing SA to go black. Underground feeders fail at wind farms because they cycle between full load and no load causing thermal cycling and making the joints fail. We replaced every joint twice before we got them more reliable. Just as well we did because we ended up with twice as many joints. Inverters fail at battery facilities. That is one of the advantages of wind and solar how quick you can turn them on and off IF the fuel is available. When we get nuclear we will be able to use them to turn off when there is to much power on the grid. 

[facthunter]

How quickly do THEY respond and where is this Happening?What is the going price  for Nuclear power Quotes tender costs Nev

Edited 2 hours ago by facthunter

[Siso]

like any thermal generator, you just open the steam/gas valves like we have with coal plants for the last 100 years. If you have several plants on line they all only need to increase one a small amount. The generator doesn't actually need to accelerate, just need to keep it running at the same speed and increase the power coming out of it. What ids the going price for the alternative. Nobody knows!

[nomadpete]

1 hour ago, Siso said:

Underground feeders fail at wind farms because they cycle between full load and no load causing thermal cycling and making the joints fail.

That sounds unlikely.

Every switchyard has constantly varying loads, but they don't have histories of such failures. Perhaps you saw a result of incorrectly completed workmanship. 

 

Secondly, whether U/G or above ground, such minimal cycling is the same. 

 

Note that any signs of heating in a joint requires immediate rectification, so a lot of care goes into preventing it no matter what the generator source is. So it is normally rarely a problem.

 

Further, I would question any U/G joints. I haven't heard of any - but I only worked in the Qld industry.

[Siso]

Trust me it happens. We ended up having to dig a large hole 6m x 6m, trifurcating the cables and mounting the phases to a frame and reburying. Cost the customer 1000s.