Category Archives: Renewable Energy

5 minute data South Australian electricity blackout

AEMO is fine tuning their story with another edition out.
– at least this edition has a better map. Any idea of the blackout being caused by wind blowing over transmission towers seems to be vanishing. Now the blackout seems due to wind generators cutting out after being subjected to a specified number of faults. Alan Moran says – South Australian blackout: it was, in fact, caused by the windfarms – he also raises issue that consumers who have suffered losses could claim compo.
Followup stories on the ABC –
SA Treasurer vainly beating his drum that wind power is never to blame.
Chris Uhlmann reviews the AEMO update
We now have 5min data which shows that wind on the 28th was lower than the peak on the 26th despite wind being stronger on 28th.

Here is a table over 3 hours – When you compare demand against – import + gas + wind it looks as though they lacked reserve. But there is also rooftop solar to factor in.

Chart history of ACT elections 1989-2016

Just major voting groups percentages – data mostly from ACTEC and the ABC. The hordes of various “independents” in early ACT elections seems remarkable. Greens must be annoyed their big totals in 2008 have melted – the ACT should be GreenLeftie heaven. One seat in doubt as Labor maintains grip – Interesting that the ACT Libs did not offer a policy difference with the ACT Govt renewables energy target of sourcing 100% renewable energy by 2020.

Shut Hazelwood coal fired generators – what could go wrong

The weekend has seen a welter of speculation about the closure of Hazelwood neatly timed with a report by the Grattan Institute titled – Keeping the lights on. Victoria has the following coal fired generators – Hazelwood 1600MW –
Loy Yang A 2180MW – Loy Yang B 1000MW – Yallourn W 1450MW
Total 6230MW = possible max 149,520MWhrs per day
If Hazelwood shuts the total coal fired generating capacity reduces to 4630MW making for a possible max 111,120MWhrs per day if all units operated 24/7.

This chart of Vic daily generation by source (omits solar) shows the current dominance of coal – for large chart. I have marked with the pink X where a horizontal line would be drawn at 111,530MWhrs per day. So just below that would mark 111,120MWhrs per day. Without some way of replacing the reliable 1600MW capacity of Hazelwood – it seems amazing that the media run with this fairy-story.

Wind drought in fifth day – electricity prices rocketing across Australia – not news

Electricity prices at AEMO have spiked to over $250 per MWhr across Australia in the morning rush – Nemwatch shows wind through the “National Grid” (excl WA) is under 250MW. The Wind Energy site shows how this wind drought is now in its third day. None of this is news in the GreenLeft main-stream-meedja. Imagine the headlines if coal or gas fired generators were to fail like this? Write your MP’s and Senators – call for a moratorium on wind power – say you will vote to curtail the excesses of the MRET scheme and for sensible electricity prices.

Australian wind drought again – SA electricity prices spike as usual

Electricity in South Australia $265 per MWhr as they fire up the diesel gensets. NemWatch for real-time generation in the states – AEMO for price & demand within the states – the differences shows SA must be importing over 500MW from Victorian brown coal generation. To see progress of the wind drought open the 3hr graph for August & check MW . Write your MP’s tell them of this and say you will be voting for a sensible power grid and moderate power bills. Drive home that these price spikes will keep recurring whenever the wind fades.