The Ergosphere
Monday, February 21, 2011

Run trucks on LNG, or on electrified rail?

A discussion elsewhere brought this issue up, and these numbers should be posted for reference.

Replacing diesel with LNG requires roughly the energy equivalent of methane, plus whatever it takes to purify the gas and convert it to liquid.  The info on liquefaction energy is hard to find; Linde Engineering doesn't even mention energy cost in its promotional material on its LNG plants.  But I found a paper on Russian stuff which supplies a graph on page 15.  This indicates about 250 Wh/kg at typical temperatures.  This figure will increase for smaller, less-efficient systems, so figure 0.5 kWh/kg for a truck-stop sized unit.  1 kg of natural gas has 13.83 kWh of energy (47,200 BTU) so it takes about 2.9 kg of LNG to replace a gallon of diesel.  This gas takes 1.4 kWh to liquefy.  If this is done with electricity supplied from a CCGT powerplant at 50% efficiency delivered, it takes another 0.59 kg of gas per gallon-equivalent; if the power is generated on-site from e.g. a Capstone C60 gas turbine at 30% efficiency, it takes another 0.99 kg of gas per gallon-equivalent.

Replacing 70% of the 3037,000 bbl/day of distillate used for transport in 2007 (46.6 billion gpy @ 138,000 BTU/gal average for US distillate per EIA) would need 114 to 127 billion kg of natural gas, depending on the liquefaction overhead.  This is 5.4 to 6.0 quads of gas.  The USA produced ~21 trillion cubic feet in 2009; at 1020 BTU/scf, this is 21.4 quads of gas.  Substituting for just 70% of diesel with LNG (no gasoline) would require increasing NG production by at least 25%.  This may be possible, but it will require much higher NG prices (which are coming anyway).

Electrification needs less.  If a dual-mode semi-truck averages 1.5 kWh/mile and traffic is 20% greater than the 2001 figure of 135.4 billion miles, annual electric power requirements would be 244 billion kWh, or about 6% of US demand for a complete replacement of diesel (not just 70%).  Supplying this from NG using CCGT's at 50% efficiency delivered to the vehicle would require 3.53 billion kg of natural gas, or 1.67 quads.  This is far more efficient, and the electric system can also use electricity from anything else on the grid.  Finally, moving trucks to dual-mode rail eliminates pavement damage and cuts road-repair costs.  The electric rail system is a better target for policy than converting semis to LNG.


EIA purges history, hoses the public

I just went to the EIA website to look up some historical data.

Surprise!  According to the EIA's new data, the world began in 2005!  At least, that's the limit of the info I can get on natural gas.  The rest of the site is equally horrid, in a MySpace kind of way; it looks glitzy, but it is now geared at the level of a 9th-grade school report rather than providing detailed data for the public's in-depth analysis.

This is a huge disappointment.  There's no good reason for existing sections to be suddenly removed, breaking all the references painstakingly created over the rest of the web.  And why remove 56 years of data from public view?  Did it suddenly become invalid?  Maybe somebody is trying to sell it?  We, the public, paid for that data; for it to suddenly become someone's proprietary product isn't just a sin, it's a crime.

I'm still trying to find out what the EIA did with the historical data, and the detailed breakdowns such as the heating value compared to raw physical quantities.  Maybe if other people ask similar questions, they'll fix things faster.  Pester the webmaster or ask the information people where the information all went; enough mail, and they'll have to start questioning the wisdom of this move.

Update:  The data still exist at (link to historical data page), but a lot of queries get re-directed to the dumbed-down pages at and there's no obvious way to find your way back.  Ask the webmaster about this.  Pointedly.

Labels: ,

Saturday, February 19, 2011

Rail electrification costs from Alan Drake

Just copying info received, for reference.

Message 1:

New Haven to Boston (AMtrak > Gov't contracting) electrified @ 2000 at $2.3 million/mile for mainly double track, some triple track. Populated almost all the way and very curvy (route along CN shore for much of way), both of which add costs ($200,000/mile for flagging !!)

I use $2 million/mile for single track and $2.5 million for double track with "round up" for large projects.

Combining electrification with HV transmission should reduce costs for both (certain % common towers).

Russia electrifies at $700,000 to $900,000/km (double track). Fewer people but extreme remoteness and extreme climate do add costs. No EIS required#

# Sierra Club is supportive of modified/simplified EIS for rail electrification, recognizing that rail ROW is already heavily impacted.

Message 2:

I stored this data (but forgot to mark where from, something I now do).

Russian Federal Railways) approximately $750,000 - 800,000 per kilometer to put a two-track line under AC wire (25kV, 50Hz).

the New Haven-Boston electrification cost about USD2.3m per route-mile (double track ie approximately USD0.7m per track-km) for "plain" track (no movable bridges, etc), broken down approximately as follows:

Design: $190,000
TPS--substations (@ $5/unit): $125,000
TPS--auto-transformers ($1.5/unit): $9,500
OCS @ $640,000/track mile: $1280,000
Signal Compatability/SCADA: $140,000
Flagging Protection: $200,000 [Outrageous]
Property Acquisitions: $30,000
Project Management: $90,000

Design/Build Cost Total: $2.3 million per route mile.

[OCS = "Overhead Contact System" = Catenary wires and supports.
"TPS" = "Traction Power System" = 4 25hv 60hz 80mvA substations and 21 autotransformers for a total of 360 track miles, 157 route-miles]
Double track requires two OCS/track mile @ $640,000/mile. Single track one. The rest is about the same. Maybe less design and project management costs.

Again, gov't contracting costs. 
Monday, February 14, 2011

Too true

Wednesday, February 09, 2011

US embassy cables: Saudi oil company oversold ability to increase production, embassy told


1. (C) SUMMARY: On November 20, 2007, CG and Econoff met with Dr. Sadad al-Husseini, former Executive Vice President for Exploration and Production at Saudi Aramco. Al-Husseini, who maintains close ties to Aramco executives, believes that the Saudi oil company has oversold its ability to increase production and will be unable to reach the stated goal of 12.5 million b/d of sustainable capacity by 2009. While stating that he does not subscribe to the theory of “peak oil,” the former Aramco board member does believe that a global output plateau will be reached in the next 5 to 10 years and will last some 15 years, until world oil production begins to decline. Additionally, al-Husseini expressed the view that the recent surge in oil prices reflects the underlying reality that global demand has met supply, and is not due to artificial market distortions. END SUMMARY.

——————————————— ——-


2. (C) Dr. Sadad al-Husseini met with CG and EconOff on November 20 to discuss current trends in the international energy market, as well as his thoughts on the Saudi energy sector. Al-Husseini served as Executive Vice President for Exploration and Production from 1992 until his retirement in 2004. He also served as a member of the Aramco Board of Directors from 1996 to retirement. (COMMENT: Al-Husseini retired in the midst of an executive dispute, supposedly caused when he unsuccessfully attempted to engineer his ascension to the position of CEO. Although he continues to live at Aramco’s main camp and has close interpersonal relationships with key Aramco executives, many of al-Husseini’s views on Aramco are shaped by the perception that the company would be better off if he were running it. END COMMENT). It is al-Husseini’s belief that while Aramco can reach 12 million b/d within the next 10 years, it will be unable to meet the goal of 12.5 million b/d by 2009. The former EVP added that sustaining 12 million b/d output will only be possible for a limited period of time, and even then, only with a massive investment program.

3. (C) According to al-Husseini, the crux of the issue is twofold. First, it is possible that Saudi reserves are not as bountiful as sometimes described and the timeline for their production not as unrestrained as Aramco executives and energy optimists would like to portray. In a December 1 presentation at an Aramco Drilling Symposium, Abdallah al-Saif, current Aramco Senior Vice President for Exploration and Production, reported that Aramco has 716 billion barrels (bbls) of total reserves, of which 51 percent are recoverable. He then offered the promising forecast – based on historical trends – that in 20 years, Aramco will have over 900 billion barrels of total reserves, and future technology will allow for 70 percent recovery.

4. (C) Al-Husseini disagrees with this analysis, as he believes that Aramco’s reserves are overstated by as much as 300 billion bbls of “speculative resources.” He instead focuses on original proven reserves, oil that has already been produced or which is available for exploitation based on current technology. All parties estimate this amount to be approximately 360 billion bbls. In al-Husseini’s view, once 50 percent depletion of original proven reserves has been reached and the 180 billion bbls threshold crossed, a slow but steady output decline will ensue and no amount of effort will be able to stop it. By al-Husseini’s calculations, approximately 116 billion barrels of oil have been produced by Saudi Arabia, meaning only 64 billion barrels remain before reaching this crucial point of inflection. At 12 million b/d production, this inflection point will arrive in 14 years. Thus, while Aramco will likely be able to surpass 12 million b/d in the next decade, soon after reaching that threshold the company will have to expend maximum effort to simply fend off impending output declines. Al-Husseini believes that what will result is a plateau in total output that will last approximately 15 years, followed by decreasing output.

5. (C) Al-Husseini elaborated that oil field depletion rates also play a significant role in determining the Aramco – and

RIYADH 00002441 002 OF 003 12.5 MBD IN 2009

global – production timeline. Increasing output is not simply a function of adding new capacity to already existing operations. Instead, due to depletion rates, new reserves must be brought online to both replace depleted production and satisfy growth in consumption. The International Energy Agency (IEA) has estimated global depletion rates at 4 percent, while a 2006 Aramco statement has estimated Saudi Arabia’s overall depletion rate at 2 percent. Al-Husseini estimates that moving forward, satisfying increases in global demand will require bringing online annually at least 6 million b/d of worldwide output, 2 million to satisfy increased demand and 4 million to compensate for declining production in existing fields.

6. (C) The second issue that will limit any proposed Aramco output expansion can be broadly defined as a lack of supporting resources. For example, in al-Husseini’s estimation, it is not the amount of oil available that will prevent Aramco from reaching 12.5 million b/d by 2009, but rather issues such as a lack of available skilled engineers, a shortage of experienced construction companies, insufficient refining capacity, underdeveloped industrial infrastructure, and a need for production management (if too much oil is extracted from a well without proper planning and technique, a well’s potential output will be significantly damaged). As previously reported by post (Reftel), the Eastern Province economy is facing severe industrial expansion limits, and despite Aramco’s willingness to invest up to 50 billion USD to achieve the 2009 goal, availability of labor, materials and housing may end up as determinative factors.



7. (C) Considering the rapidly growing global demand for energy – led by China, India and internal growth in oil-exporting countries – and in light of the above mentioned constraints on expanding current capacity, al-Husseini believes that the recent oil price increases are not market distortions but instead reflect the underlying reality that demand has met supply (global energy supply having remained relatively stagnant over the past years at approximately 85 million barrels/day). He estimates that the current floor price of oil, removing all geopolitical instability and financial speculation, is approximately 70 – 75 USD/barrel. Due to the longer-term constraints on expanding global output, al-Husseini judges that demand will continue to outpace supply and that for every million b/d shortfall that exists between demand and supply, the floor price of oil will increase 12 USD. Al-Husseini added that new oil discoveries are insufficient relative to the decline of the super-fields, such as Ghawar, that have long been the lynchpin of the global market.

8. (C) COMMENT: While al-Husseini believes that Saudi officials overstate capabilities in the interest of spurring foreign investment, he is also critical of international expectations. He stated that the IEA’s expectation that Saudi Arabia and the Middle East will lead the market in reaching global output levels of over 100 million barrels/day is unrealistic, and it is incumbent upon political leaders to begin understanding and preparing for this “inconvenient truth.” Al-Husseini was clear to add that he does not view himself as part of the “peak oil camp,” and does not agree with analysts such as Matthew Simmons. He considers himself optimistic about the future of energy, but pragmatic with regards to what resources are available and what level of production is possible. While he fundamentally contradicts the Aramco company line, al-Husseini is no doomsday theorist. His pedigree, experience and outlook demand that his predictions be thoughtfully considered. END COMMENT.




9. (U) Dr. Sadad Ibrahim al-Husseini was born in Syria but raised in Saudi Arabia, his father a Saudi government official. He received a BS in Geology from the American University of Beirut in 1968, as well as an MS and Ph.D. in geological sciences from Brown University in 1970 and 1972, respectively. Al-Husseini also attended a Professional Management Program at Harvard Business School in 1982.

RIYADH 00002441 003 OF 003 12.5 MBD IN 2009

Joining Aramco in 1972, al-Husseini quickly advanced, becoming Senior Vice President for Exploration and Production in 1986. He was given the title Executive Vice President in 1992. Al-Husseini served on Aramco’s Management Committee from 1986 until 2004, and sat on the Aramco Board of Directors from 1996 – 2004. He retired on March 1, 2004. XXXXXXXXXXXX


Talk largely about energy and work, but also politics and other random thoughts

Mail Engineer-Poet

(If you're mailing a question, is it already in the FAQ?)

Important links

The Reference Library

Blogchild of

Armed and Dangerous

Blogparent of


The best prospect for our energy future:
Flibe Energy

January 1990 / February 2004 / March 2004 / June 2004 / July 2004 / August 2004 / September 2004 / October 2004 / November 2004 / December 2004 / January 2005 / February 2005 / March 2005 / April 2005 / May 2005 / June 2005 / July 2005 / August 2005 / September 2005 / October 2005 / November 2005 / December 2005 / January 2006 / February 2006 / March 2006 / April 2006 / May 2006 / June 2006 / July 2006 / August 2006 / September 2006 / October 2006 / November 2006 / December 2006 / January 2007 / February 2007 / March 2007 / April 2007 / December 2007 / January 2008 / May 2008 / June 2008 / August 2008 / October 2008 / November 2008 / December 2008 / February 2009 / March 2009 / April 2009 / May 2009 / June 2009 / July 2009 / August 2009 / September 2009 / October 2009 / November 2009 / December 2009 / January 2010 / April 2010 / May 2010 / June 2010 / July 2010 / August 2010 / September 2010 / October 2010 / November 2010 / December 2010 / January 2011 / February 2011 / March 2011 / April 2011 / May 2011 / July 2011 / August 2011 / September 2011 / October 2011 / April 2013 / November 2013 / December 2013 / January 2014 / February 2014 / March 2014 / April 2014 / July 2014 / August 2014 / September 2014 / October 2014 / November 2014 / February 2015 / April 2015 / October 2015 / March 2016 / April 2016 / May 2016 / June 2016 / July 2016 / November 2016 / December 2016 / February 2017 /

Powered by Blogger

RSS feed

Visits since 2006/05/11: