Monthly Archives: April 2015

David Hughes: Has Well Productivity Peaked in the Nation’s Largest Shale Gas Play, the Marcellus?

[This is big news since other major plays have already peaked.  It looks like the Marcellus is on Hughes predicted by 2018 peak with the latest data published] Has Well Productivity Peaked in the Nation’s Largest Shale Gas Play? By … Continue reading

Posted in Other Experts | Comments Off on David Hughes: Has Well Productivity Peaked in the Nation’s Largest Shale Gas Play, the Marcellus?

Electric vehicle overview

[ Most, but not all of what follows comes from the NPC paper below. I’ve reworded or interjected some comments as well. As you can see in Figure 1 below, light cars and trucks are the main guzzlers of petroleum.  … Continue reading

Posted in Automobiles, Batteries, Electric Cars, Electrification | Tagged , , | 1 Comment

Natural Gas limits: 20-40% of recoverable resources are low EROI Sour Gas

SBC. October 2014. Factbook Natural Gas Factbook. SBC Energy Institute                           There are 855 trillion cubic meters (tcm) of technically recoverable resources, which means that regardless of cost … Continue reading

Posted in Natural Gas | Comments Off on Natural Gas limits: 20-40% of recoverable resources are low EROI Sour Gas

Coal or Biomass & Coal to Liquids: CTL, DCL, & CBTL technology

Gray, D., et al. August 1, 2012.  Topic Paper #8 Production of Alternative Liquid Hydrocarbon Transportation Fuels from Natural Gas, Coal, and Coal and Biomass (XTL). National Petroleum Council Background With national energy security still being a dominant concern because … Continue reading

Posted in Coal to Liquids (CTL) | Tagged , , , | Comments Off on Coal or Biomass & Coal to Liquids: CTL, DCL, & CBTL technology

Trucks running on CNG or LNG

National Petroleum Council 2012 Chapter Fourteen Natural Gas. Topic Paper #21 An Initial Qualitative Discussion on Safety Considerations for LNG Use in Transportation. Below is an overview of obstacles to using Compressed natural gas (CNG) or Liquefied Natural Gas (LNG) … Continue reading

Posted in Natural Gas Vehicles, Trucks | Comments Off on Trucks running on CNG or LNG

Better truck fuel efficiency to delay the end of the oil age

NAS. 2010. Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles (National Academy of Sciences Study) This free, 251 page document is one of the best I’ve seen on the myriad ways trucks could double their … Continue reading

Posted in Transportation, Trucks | Tagged , , , , , , , | Comments Off on Better truck fuel efficiency to delay the end of the oil age

New land converted to cropland to grow biofuel crops equal to 34 coal-fired power plants

Summary of article below: Between 2008 and 2012 over 7 million acres new land, much of it grasslands, were converted to croplands, damaging native ecosystems, and mimics the extreme land-use change that led up to the Dust Bowl in the … Continue reading

Posted in Biofuels | Tagged , , , , , , | 1 Comment

Pedro Prieto: many solar panels won’t last 25-30 years, EROI may be negative

See my review of “Spain’s Solar Revolution” for background on what follows: Our study concluded that, when analyzed what we called “extended boundaries energy inputs”, about 2/3 of the total energy inputs were other than those of the modules+inverters+metallic infrastructure … Continue reading

Posted in Pedro Prieto, Photovoltaic Solar | Comments Off on Pedro Prieto: many solar panels won’t last 25-30 years, EROI may be negative

Petroleum council urges Arctic oil to offset declining production in lower 48

The U.S. should immediately begin a push to exploit its enormous trove of oil in the Arctic waters off of Alaska, or risk a renewed reliance on imported oil in the future, an Energy Department advisory council says in a … Continue reading

Posted in Arctic | 1 Comment

All Electric Trucks. Probably not going to happen. Ever. Why not?

There are “forms of transport that cannot be electrified — heavy-duty trucks and planes… Even if the electricity problem can be solved, it won’t address the needs of planes, trucks, ships and some industrial heating that cannot be electrified” (Long). … Continue reading

Posted in Batteries, Lithium-ion, Trucks | Tagged , , , , , , , | 5 Comments