Loading ...
Sorry, an error occurred while loading the content.

2051Re: [hreg] Media Meeting Monday Night

Expand Messages
  • Roxanne Boyer
    Jun 30, 2003
    • 0 Attachment
      There was an error in the thinking of my first model.  I substracted Total world energy consumption from fossil fuel reserves, but I should have only subtracted fossil fuel energy consumption.   Attached is a new model that looks at just petroleum consumption and reserves.  The model is used to describe bacteria growth in a limited nutrient pool.  The bacteria grow exponentially until they have to compete with each other for nutrients and then they start dying off.  One could imagine an analogy.  The model used fits pretty good and there are no "adjusted" parameters, only two parameters fit to historical trends.  The results show we will have consumed half of our oil supply by the year 2025 and our peak consumption will occur at year 2040.  Wow, this IS serious.
       
      Michael is right.  Only about half of the oil listed as a reserve is "good" oil.  The other half requires a lot of work to make it into a usable, clean fuel.  Same with coal; only about half of the reserves listed are of good quality.
       
      I'll dive into the BP site next...
       
      Regards,
      Chris Boyer
      ----- Original Message -----
      Sent: Sunday, June 29, 2003 4:51 PM
      Subject: Re: [hreg] Media Meeting Monday Night

      Mike,
      You are right, I calculated those numbers the same time I was doing the ethanol calculations awhile back and I must have gotten billion and trillion mixed up.  Do these numbers look better?....
      World known recoverable reserves were:
      Oil - 1x10^12 barrels or 5,880 Quadrillion BTU (Quad)
      Gas - 5.2x10^15 SCF or 5,200 Quads
      Coal - 1.0x10^12 short ton or 22,200 Quads
      Using these numbers and a growth consumption rate = A*E(t)*exp(k*t) where A and k are constants, E is the total energy reserves and t is the time (yr), then peak consumption would occur at about 2025.  If you say that we have only discovered half of the possible reserves, then the peak would occur at about 2060.  Ouch!  That changes my philosophy - add shortage of fossil fuels to the list of reasons we need renewable energy!  Of course, someone better check my numbers.
      I attached an Excell file with calculations and graphs showing the 2025 and 2060 cases to this e-mail.
       
      The Annual Energy Outlook only has US data.  In the EIA web site, there is a section "international" that has world data. 
      I'm still pouring over the data myself, so, more info to follow...
       
      -Chris
       
       
       
       
       
      ----- Original Message -----
      Sent: Saturday, June 28, 2003 3:14 PM
      Subject: RE: [hreg] Media Meeting Monday Night

      Chris,
       
      Can you check your reference please.  The numbers you gave would say we have 15000 years of oil left at current consumption rates.  I found another source that was a factor of 1000 less, after some math.  So that would be 15 years of oil left (at current consumption; not counting undiscovered resources).
       
      The 2003 reference you gave had US data.
      -----Original Message-----
      From: Roxanne Boyer [mailto:rox1@...]
      Sent: Friday, June 27, 2003 10:56 PM
      To: hreg@yahoogroups.com
      Subject: Re: [hreg] Media Meeting Monday Night

      Mike and all others interested,
      The DOE has a division called the Energy Information Agency (EIA) that publishes available information on the energy sector. 
      By trending world consumption (modified for population growth) and available fossil fuel reserves, one can predict how long we can depend on fossil fuel as an energy resource.
       
      From the EIA home page, you can access all kinds of information, however, you really have to know for what you are looking, and you have to understand how the data was obtained and what it means.   There used to be a publication called the "Annual Energy Review", the last copy I have was published in August of 2001 and was current through 2000.  That document reported annual world energy consumption was ~400 Quadrillion BTU.  Crude Oil reserves were 5,880,000 Quadrillion BTU, Natural Gas reserves were 5,200,000 quadrillion BTU (I think they included gas hydrates), and coal reserves were 22,200 Quadrillion BTU. 
      (For comparison, 450,000 Quadrillion BTU of solar energy strikes the earth's surface.)
       
      I think EIA changed the content and name of the report to the "Annual Energy Outlook".  The most recent, 2003 (data through 2002) can be found at:
      I just found this document, and have not read it yet.  I will say more on fossil fuel reserves later if I find a difference between the 2001 publication and the 2003 publication.
      Sincerely,
      Chris
       
      ----- Original Message -----
      Sent: Thursday, June 26, 2003 10:04 PM
      Subject: RE: [hreg] Media Meeting Monday Night

      Chris, can you point us to the EIA data?  I knew there was a lot of coal, but I didn't know there was that much.
       
      Charlie, thank you for the report and the explanation.  This peak in production was discussed at the American Solar Energy Society meeting that some of us just returned from in Austin.  I think they said the projections on world peak production were from 2005 to about 2015, with the point made that we should do something about it rather than argue exactly when.
       
      The conference was great! We will have a report on it by those who went at our meeting in July.
      -----Original Message-----
      From: Roxanne Boyer [mailto:rox1@...]
      Sent: Monday, June 23, 2003 10:09 PM
      To: hreg@yahoogroups.com
      Subject: [hreg] Media Meeting Monday Night

      Did anyone go to the media meeting with Richard Heinberg Monday night, please give us a report on it.  I wanted to go and was unable, so if someone would please let me have the experience thorugh their eyes, I would appreciate it.
       
      I know his book states a case that the earth is about to run out of petroleum.  The DOE-EIA published that there is enough fossil fuel to supply world demand as it increases 5% per year until the year 2300.  Thus, my case for renewable energy before 2300 has been to prevent pollution and increase freedom/peace.  I would like to add to my argument for RE that there is a shortage of fossil fuel if someone can put forth a convincing, scientific proof of it.  Does anyone have a copy of his book?
       
      Sincerely,
      Chris


      Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.


      Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.


      Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.


      Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.


      Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
    • Show all 25 messages in this topic