Category Archives: Resources

Tasmanian power exports via Basslink in Dec 2015 were triggered by Victorian price signals

I should have included this price graphic in my March blog – Tasmanian electricity crisis explained day by day
Now it is crystal clear to see that Tasmania initiated power exports when the Victorian RRP rose through ~$80(per MWhr) and exports ceased when Vic RRP fell back. Looking at my March chart of the 5 minute data from 15th to 21st Dec 2015 it is clear that imports ceased just prior to exports being commenced and vice versa. I have no idea what stresses can be induced in a cable when the current is reversed frequently like this. It is also worth noting that the export MW exceeded the import MW. Here is the daily chart from 1 Nov 2015 to 10 Mar 2016.

Surge in wholesale electricity prices last week

Peter Bobroff who runs the AusGrid PublicKnowledge website – alerted me to the increase in the AEMO RRP wholesale electricity prices over recent weeks.
My chart of 4 States daily av AEMO RRP from these AEMO tables. I have added 30 day average curves.
Chart constructed by Peter of the number of 5 min intervals per day that the RRP exceeds $150.
We have been wondering why this price surge now – which looks unprecedented over 29 months. My power bill from a year ago equates to about $170 per MWhr. The charts show price has been under pressure this year. NemWatch gives a snapshot of generation by source.

Plans to reduce WA wheatbelt salinity and utilize Wellington Dam

Time we are reminded about the very good Agritech Salinity Crisis Action Plan so highly ignored by WA Govts. The WayBack Machine still has the Agritech site from several years ago. Contact details are obsolete.
I also had a page up.
Agritech also had their Wellington Dam Water Recovery Project – also on the WayBack Machine. Too good a project for the WA Govt.
I have mentioned the Agritech Wellington Dam project more than once.
Click for synoptic map – block diagram of both Agritech projects.

Media gem from 2009 – West Australian Govt backed Perth geothermal projects to generate electricity from steam

Geothermal mine to power University of WA – note the quote “…be used in the design of a desalination plant, which would utilize geothermal energy to create fresh water.” I wonder where we find this raging success 7 years later? Green Rock Energy GRK is mentioned in the above article – they were reconstituted as Black Rock Mining Limited asx code BKT and here is the full share price history. Green Rock Energy fell on tough times and changed into Black Rock Mining Limited about a year ago – April 2015 and at that time the new company moved into graphite exploration. Note the map of Hot Rock tenements still held by Black Rock Mining Limited. Some around Wellington Dam.

Port Augusta coal fired power station shuts today

An example of Govt delusion IMHO – ABC reports – Port Augusta’s coal-fired power station closes in South Australia – They should be OK until peak loads on Adelaide hot summer days – then they will be stretching their resources if wind is light in the late afternoons. Checkout Nemwatch. Amazing that a modern first world State puts its entire economy at the whim of the wind. I have a few articles on this issue. For Peter Bobroff’s site AusGrid