Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Environment & Energy

Showing Original Post only (View all)

Bill USA

(6,436 posts)
Tue Jul 21, 2015, 06:20 PM Jul 2015

Myths And Facts About The Renewable Fuel Standard and Ethanol fuel - MediaMatters [View all]

.. here is thorough debunking of the popular myths and urban legends {usually promulgated by the Oil industry minions paid and unpaid (read: uninformed would-be environmentalists)} about ethanol from the people at Media Matters. Too bad this will probably make zero difference despite the facts enumerated - to the those who have been thoroughly duped by the Oil INdustry propagandists. LOL!
[div class="excerpt" style="width:390px;text-align:right;background:#ffffff;"] ... oh, not so funny....                                                                      


The article debunks four well known myths about Ethanol:

Ethanol Mandate Increases Food Prices
Ethanol (E15) will destroy your cars engine
Renewable fuels are bad for the environment
Renewable fuel industry receives a disproportionate share of Government subsidies


this excerpt only includes a fraction of the article (note the excerpts in the article are from Government reports and are not subject to copyright protection provisions). the article really should be read in its entirety to be fully appreciated (well, unless of course you are an Oil Industry troll or sucker... in which case you would not appreciate this article even more if you read the whole thing!).

http://mediamatters.org/research/2014/11/26/myths-and-facts-about-the-renewable-fuel-standa/201718#Link1


MYTH: Renewable Fuel Standards Raise Food Prices

FACT: Ethanol Production Does Not Divert Food Or Raise Prices

CBO Report: RFS Will Not Significantly Alter Food Prices. The Congressional Budget Office (CBO) analyzed how the RFS will impact the economy beyond 2014 and determined that it will have no significant impact on food prices. The CBO also stated that if the standards were increased to meet the initially proposed requirements by 2017, it would result in increased spending on food by just one-quarter of 1 percent:


[div style="border: 1px solid #000000;padding: 10px;" class="excerpt"]
Food Prices Would Be Similar Whether the RFS Was Continued or Repealed

Roughly 40 percent of the U.S. corn supply is used to make ethanol. To the extent that the Renewable Fuel Standard increases the demand for corn ethanol, it will raise corn prices and put upward pressure on the prices of foods that are made with corn -- ranging from corn-syrup sweeteners to meat, poultry, and dairy products. CBO expects that roughly the same amount of corn ethanol would be used in 2017 if fuel suppliers had to meet requirements equal to EPA's proposed 2014 volumes or if lawmakers repealed the RFS, because suppliers would probably find it cost-effective to use a roughly 10 percent blend of corn ethanol in gasoline in 2017 even in the absence of the RFS. Therefore, food prices would also be about the same under the 2014 volumes scenario and the repeal scenario.

By contrast, corn ethanol use in 2017 would be about 15 percent (or 2 billion gallons) higher under the EISA volumes scenario. CBO estimates that the resulting increase in the demand for corn would raise the average price of corn by about 6 percent. However, because corn and food made with corn account for only a small fraction of total U.S. spending on food, that total spending would increase by about one-quarter of one percent. [Congressional Budget Office, 6/26/14]


~~
~~

MYTH: Ethanol Will Harm Your Vehicle

~~
~~

FACT: Rigorous Studies Show That Ethanol Does Not Harm Engines

DOE: Industry-Funded Study Claiming Ethanol Hurts Engines Is "Significantly Flawed." Patrick B. Davis, the manager of the Department of Energy's Vehicle Technologies Program, published an article critiquing the CRC study that found E15 and E20 (a gasoline blend with 20 percent ethanol) hurt auto engines. The DOE concluded that the study was "significantly flawed" because it did not establish a proper control group and that it cherry-picked vehicles "already known to have durability issues" (emphasis original):

[div style="border: 1px solid #000000;padding:10px;" class="excerpt"]
The CRC failed to establish a proper control group, a standard component of scientific, data-driven testing and a necessity to determine statistical significance for any results.

◾ Instead, only three out of the eight engines were tested with straight gasoline containing no ethanol (E0), and one of those three failed the CRC's test.
◾ No engines were tested with E10 fuel, the de facto standard gasoline for all grades, which represents more than 90 percent of gasoline available in the U.S. market. Even though E10 fuel has been in the market for over 30 years and is used in all current conventional gasoline vehicles and small non-road engines, it was not part of the CRC test program.

(...)
◾ Perhaps most surprisingly, the CRC decided to select several engines already known to have durability issues, including one that was subject to a recall involving valve problems when running on E0 gasoline and E10. It is no surprise that an engine having problems with traditional fuels might also "fail" with E15 or E20 ethanol-blended fuels -- especially using a failure criterion chosen to demonstrate sensitivity to ethanol and operated on a cycle designed to stress the valves. [Energy.gov, 5/16/12]



DOE's More Rigorous Study Found No "Unusual Wear" From E15 On Current Systems. The DOE studied 86 vehicles -- compared to the CRC's analysis of eight engines -- and "did not uncover unusual wear that would be expected to impact performance." From Davis' article:

[div class="excerpt" style="border: 1px solid #000000;padding:10px;"]
Prior to the CRC's findings, the Energy Department conducted its own rigorous, thorough and peer-reviewed study of the impact of E15 fuel on current, conventional vehicle catalyst systems. The Energy Department study included an inspection of critical engine components, such as valves, and did not uncover unusual wear that would be expected to impact performance. Rather than using an aggressive test cycle intended to severely-stress valves, the Energy Department program was run using a cycle more closely resembling normal driving. The Energy Department testing program was run on standard gasoline, E10, E15, and E20. The Energy Department test program was comprised of 86 vehicles operated up to 120,000 miles each using an industry-standard EPA-defined test cycle (called the Standard Road Cycle). The resulting Energy Department data showed no statistically significant loss of vehicle performance (emissions, fuel economy, and maintenance issues) attributable to the use of E15 fuel compared to straight gasoline. The Energy Department test program also showed that 10% engine leakdown is not a reliable indicator of vehicle performance. In the Energy Department program, there were vehicles found to exceed 10% leakdown for all fuels, including vehicles running on E0 and E10. There was no correlation between fuel type and leakdown, and high leakdown measurements did not correlate to degradation in engine or emissions performance. [U.S. Department of Energy, 5/16/12]

(more)
7 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Latest Discussions»Issue Forums»Environment & Energy»Myths And Facts About The...»Reply #0