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Marine

 

Wave and tidal power pilot plants have been very costly to build per kW and in the case of wave power have often suffered very high ongoing maintenance costs. This makes the average carbon footprint of current marine (tidal and wave) power nearly 100 times larger than that of wind, with very much higher delivered energy costs.

 

 

 

 

 


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Travel

Balkans

 

 

In September 2019 we left Turkey by air, to continue our trip north along the Adriatic, in the Balkans, to Austria, with a brief side trip to Bratislava in Slovakia. 

'The Balkans' is a geo-political construct named after the Balkan Peninsula between the Adriatic and the Black Sea.

According to most geographers the 'Balkans' encompasses the modern countries of Albania; Bosnia and Herzegovina; Bulgaria; Croatia; Greece; Kosovo; Montenegro; North Macedonia; Serbia; and Slovenia. Some also include Romania. 

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Fiction, Recollections & News

Chappaquiddick

 

 

 

'Teddy, Teddy, I'm pregnant!
Never mind Mary Jo. We'll cross that bridge when we come to it.'

 


So went the joke created by my friend Brian in 1969 - at least he was certainly the originator among our circle of friends.

The joke was amusingly current throughout 1970's as Teddy Kennedy again stood for the Senate and made later headlines. It got a another good run a decade later when Teddy decided to run against the incumbent President Jimmy Carter for the Democratic Presidential nomination.

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Opinions and Philosophy

Electric Cars revisited (again)

  

Electric vehicles like: trams; trains; and electric: cars; vans; and busses; all assist in achieving better air quality in our cities. Yet, to the extent that the energy they consume is derived from our oldest energy source, fire: the potential toxic emissions and greenhouse gasses simply enter the atmosphere somewhere else.

Back in 2005 I calculated that in Australia, due to our burning coal, oil and sometimes rural waste and garbage, to generate electricity, grid-charged all-electric electric cars had a higher carbon footprint than conventional cars.

In 2019, with a lot of water under the bridge; more renewables in the mix; and much improved batteries; I thought it was worth a revisit. I ran the numbers, using more real-world data, including those published by car companies themselves. Yet I got the same result: In Australia, grid-charged all-electric cars produce more greenhouse gasses than many conventional cars for the same distance travelled.

Now, in the wake of COP26, (November 2021), with even more water under the bridge, the promotion of electric cars is back on the political agenda.  Has anything changed?

 

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