Skip to main content

IEA change tack slightly

This is an interesting article referring to the International Energy Agency starting to resile from their prediction of peak oil being about 2030. They are arguing a case that:

“It should be noted, too, that there does not tend to be great interest in new types of resources among service and supply-sector players…they need to have ready customers for their new products and cannot easily justify developing products for a market that does not yet exist. Furthermore, private industry cannot be relied upon to invest in research on technologies that are too far from being economical.”

This economic argument ignores the issue of EROEI - Energy Returned on Energy Invested. I heard an argument once that if people eat celery the energy taken to consume the celery is more than is obtained from the celery. I never liked celery anyway so as a dieting mechanism it never attracted me.

However, EROEI always trumps the laws of economics being as it is the law of conservation of energy. Extracting oil consumes energy (the marginal return of which comes from oil and gas). The harder to extract elements consume more energy. So as the cost of extraction goes up as energy costs go up the merit of trying to extract the oil goes down.

In the big Gharwar field in Saudi Arabia seawater is being injected to get oil out. This takes energy, but there is still a massively positive energy return.

Converting from one source of energy to another is another important issue. If hydrocarbons are burnt then there is a limit (the Carnot limit) set by the laws of conservation of Entropy as to the amount of energy that can be extracted. As a rule of thumb two thirds or so gets wasted in most car engines before transmission losses. Combined Cycle Natural Gas generators can convert about 50-60% of the energy inbuilt in the gas. Additionally Combined Heat and Power systems can be used to warm up cool locations although we really should look at insulation for this.

It is these matters that human ingenuity cannot get around because they are theoretical limits (much like the reason why the patent office won't accept patents for perpetual motion engines (although perpetual motion does exist particularly at very low temperatures)). [in this instance perpetual motion is the concept of something that makes energy out of nothing]


Apollo Project said…
I heard an argument once that if people eat celery the energy taken to consume the celery is more than is obtained from the celery.

Apparently a myth. Although an attractive one to this overweight celery fan.


Popular posts from this blog

Statement re false allegations from Esther Baker

Statement by John Hemming
I am pleased that the Police have now made it clear that there has been a concerted effort to promote false criminal allegations against me and that the allegations had no substance whatsoever.
I would like to thank Emily Cox, my children, Ayaz Iqbal (my Solicitor), my local lib dem team and many others who supported me through this dreadful experience. There are many worse things that happen to people, but this was a really bad experience.
It is bad enough to have false allegations made about yourself to the police, but to have a concerted campaign involving your political opponents and many others in public creates an environment in which it is reasonable to be concerned about ill founded vigilante attacks on your family and yourself. Luckily there was a more substantial lobby to the contrary as well, which included many people who were themselves real survivors of abuse, which has helped.
I am normally someone who helps other people fight injustice. …

R v SUSSEX JUSTICES ex p McCARTHY [1924] 1 KB 256

I have only just found this one which I think is accurately reported below (but if it is not please give me an accurate report).


R v SUSSEX JUSTICES ex p McCARTHY [1924] 1 KB 256

November 9 1923

Editor’s comments in bold.

Here, the magistrates’ clerk retired with the bench when they were considering a charge of dangerous driving. The clerk belonged to a firm of solicitors acting in civil proceedings for the other party to the accident. It was entirely irrelevant that there had been no evidence of actual influence brought to bear on the magistrates, and the conviction was duly quashed.

It is clear that the deputy clerk was a member of the firm of solicitors engaged in the conduct of proceedings for damages against the applicant in respect of the same collision as that which gave rise to the charge that the justices were considering. It is said, and, no doubt, truly, that when that gentleman retired in the usual way with the justices, taking with him the…

Statement re Police investigation into Harassment and Perverting the Course of Justice.

It was recently reported that the police were not investigating the allegations of Perverting the Course of Justice that I had made. This came as a surprise to me as I had been told for some time that my allegations were to be considered once the VRR had been rejected. I have now had a very constructive meeting with Staffordshire police on Friday 29th June 2018 and the misunderstandings have been resolved. At that meeting the evidence relating to the perversion of the course of justice and the harassment campaign against my family were discussed. The police have decided to investigate both the perversion of the course of justice and also the harassment campaign. I would like to thank them for changing their decision and I accept their apology for the way in which they did that. I am also in possession of written confirmation a police force would be investigating allegations that a vulnerable witness has been harassed for trying to expose the campaign against me. I hope that the aut…