John Smith wrote on Sep 29
th, 2016 at 4:34pm:
No problem.
http://reneweconomy.com.au/2016/south-australias-electricity-price-woes-are-more...
From your link -
'Wind power
July is normally a windy month in SA. But it seems likely that this month’s total wind generation, while roughly the same as last July, will be much lower than in July 2014. The average price so far this month is about A$320, compared with about A$70 in May this year (when it was windier) and A$50 in July 2014.
Wholesale gas prices
Wholesale gas prices increased rapidly during May and June. It is generally agreed that this is due to increased demand for gas for the three export LNG plants in Queensland, which are now running at two thirds of full capacity.
Gas prices affect wholesale electricity prices mainly though their effect on the operating cost of open-cycle gas turbine (OCGT) generators. These smaller, fast-start generators are ideal for meeting demand spikes, but they are relatively expensive to run. As we have already seen, wholesale prices climbed in all NEM states during May and June, and there is little doubt that higher gas prices were the main driver.'
So wind is about the same as last year. Was demand up for any reason? Was the wind blowing at the time of peak demand?
The gas turbines can be run up quickly, but expensive to run. Were they required to run more often because wind was not available at peak times?
Of course we have all heard of The Conversation.