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Geothermal

 

Geothermal power is competitive with coal and less expensive than wind when the resource is very near to the surface; for example in the ‘pacific rim of fire’ countries. Many plants already exist around the world in volcanic areas. Unlike wind or solar geothermal power is continuous and ‘base load’. But the easily exploited resource is geographically limited and its contribution to total energy consumed worldwide is negligible compared to that of hydro and wind.

Deep geothermal is more widely distributed and is being explored in several locations in Australia but at the present time substantial technical issues have not been fully resolved and the capital cost of extraction is likely to be very high (leading to a high carbon footprint and very high cost per kWh).

Nevertheless it is hoped that geothermal power could compliment wind or solar as the REC value climbs and/or an ETS comes into effect.

 

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Travel

Ireland

 

 

 

 

In October 2018 we travelled to Ireland. Later we would go on to England (the south coast and London) before travelling overland (and underwater) by rail to Belgium and then on to Berlin to visit our grandchildren there. 

The island of Ireland is not very big, about a quarter as large again as Tasmania, with a population not much bigger than Sydney (4.75 million in the Republic of Ireland with another 1.85 million in Northern Ireland).  So it's mainly rural and not very densely populated. 

It was unusually warm for October in Europe, including Germany, and Ireland is a very pleasant part of the world, not unlike Tasmania, and in many ways familiar, due to a shared language and culture.

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Fiction, Recollections & News

Skydiving

 

 

On the morning of May1st 2016 I jumped, or rather slid, out of a plane over Wollongong at 14,000 feet.

It was a tandem jump, meaning that I had an instructor strapped to my back.

 


Striding Confidently Before Going Up

 

At that height the curvature of the earth is quite evident.  There was an air-show underway at the airport we took off from and we were soon looking down on the planes of the RAAF  Roulette aerobatic display team.  They looked like little model aircraft flying in perfect formation.  

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Opinions and Philosophy

Death

 

 

Death is one of the great themes of existence that interests almost everyone but about which many people avoid discussion.  It is also discussed in my essay to my children: The Meaning of Life on this website; written more than ten years ago; where I touch on personal issues not included below; such as risk taking and the option of suicide.

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