Navigation Links
Photovoltaics beat biofuels at converting sun's energy to miles driven
Date:1/17/2013

In 2005, President George W. Bush and American corn farmers saw corn ethanol as a promising fossil fuel substitute that would reduce both American dependence on foreign oil and greenhouse gas emissions. Accordingly, the 2005 energy bill mandated that 4 billion gallons of renewable fuel be added to the gasoline supply in 2006. That rose to 4.7 billion gallons in 2007 and 7.5 billion in 2012.

Since then, life cycle assessments (LCAs) have shown that corn ethanol has modest if any effect on reducing CO2 emissions and may actually increase them, while posing a threat to natural habitats and food supplies, as food stocks are turned to fuel and marginal lands are put under the plough to keep up with demand. In 2010, fuel ethanol consumed 40 percent of U.S. corn production, and 2012 prices are at record highs. Since the U.S. also accounts for 40 percent of the world's corn, U.S. ethanol production has affected corn prices around the planet.

As electric vehicles (EVs) increasingly enter the market and charging stations are built to serve them, EVs are competing with alternative-fuel vehicles. Using electricity generated by coal-fired plants to power the cars defeats the purpose to some extent, but what if the energy comes from the ultimate clean and renewable source the sun itself? How would that compete with ethanol in terms of land use, life-cycle emissions, and even cost?

The question, says UCSB Bren School of Environmental Science & Management Professor and LCA expert Roland Geyer, is which makes more sense, growing fuel crops to supply alternative-fuel vehicles with ethanol and other biofuels or using photovoltaics (PV) to directly power battery electric vehicles (BEV)?

"The energy source for biofuels is the sun, through photosynthesis," he says. "The energy source for solar power is also the sun. Which is better?"

To find out, Geyer joined former BrenSchool researcher David Stoms and James Kallaos, of the Norwegian Un
'/>"/>

Contact: James Badham
media@bren.ucsb.edu
University of California - Santa Barbara
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Algae biofuels: the wave of the future
2. Better plants for biofuels
3. Environmental benefit of biofuels is overestimated, new study reveals
4. Researchers seek to improve drought resistance of biofuels crops
5. BP Biofuels, Texas AgriLife Research sign agreement to advance biofuel feedstock development
6. Ancient diatoms could make biofuels, electronics and health food -- at the same time
7. Algae Biomass Organization hails new UCSD study showing saltwater algae viable for biofuels
8. Bioengineered marine algae expands environments where biofuels can be produced
9. CU-led team receives $9.2 million DOE grant to engineer E. coli into biofuels
10. Can algae-derived oils support large-scale, low-cost biofuels production?
11. NREL and Johnson Matthey announce 5-year collaboration on biofuels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... Research and Markets ( http://www.researchandmarkets.com/research/s6qzt5/samsung_galaxy_s5 ... "Samsung Galaxy S5 - Home Button Synaptics Fingerprint ... http://photos.prnewswire.com/prnh/20130307/600769 ... than the iPhone 5S, Samsung introduces for the ... The Galaxy S5 home button presents ...
(Date:12/17/2014)... 16, 2014  Automation is fundamentally transforming the ... than at international borders. Over the past decade, ... allowed veteran travelers to self process through border ... Kiosks at an increasing number of airports, seaports, ... According to Maxine Most , Principal ...
(Date:12/11/2014)... ST. PAUL, Minn. , Dec. 10, 2014 ... in wireless physiologic monitoring, has released a new ... changing needs of preclinical toxicology researchers. M series, ... to help toxicologists collect the best possible physiologic ... studies. Adding functional endpoints to toxicology ...
Breaking Biology News(10 mins):Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
... of researchers from the LGC Chemical Metrology Laboratory in the ... up with a method to detect how the proportions of ... of protons and electrons but different numbers of neutrons) vary ... is to be able to use these methods to track ...
... have identified the locking mechanism that allows some neurons ... of genes that produce a critical cell-adhesion molecule involved ... The discovery -- captured with fluorescent imaging of excitatory ... studied in culture as they continued to develop -- ...
... (Nasdaq: AWRE ), a leading supplier of broadband ... first quarter ended March 31, 2009. Revenues for the ... 22% compared to $5.9 million in the same quarter last ... diluted net income per share in accordance with U.S. generally ...
Cached Biology News:Sulphur in just one hair could blow a terrorist's alibi 2Sulphur in just one hair could blow a terrorist's alibi 3Capturing the birth of a synapse 2Aware, Inc. Reports First Quarter 2009 Financial Results 2Aware, Inc. Reports First Quarter 2009 Financial Results 3Aware, Inc. Reports First Quarter 2009 Financial Results 4Aware, Inc. Reports First Quarter 2009 Financial Results 5Aware, Inc. Reports First Quarter 2009 Financial Results 6
(Date:12/24/2014)... (PRWEB) December 23, 2014 ... series is designed to introduce cutting edge ... users and partners of platform upgrades. This ... benefits; empowering users in their quest to ... tools. , According to SoundConnect’s Marketing Manager, ...
(Date:12/24/2014)... 23, 2014 According to Ross Selinger, President ... of ITRA Global, the national office market continues to be ... This is evidenced by the third quarter’s surprising 3.9% GDP, ... Low energy costs have held inflation down and the Fed ... the housing market remaining soft. , This solid economic news ...
(Date:12/24/2014)... 2014 Nashville Fertility Center announced that ... for the American Society for Reproductive Medicine (ASRM), a ... in reproductive medicine. In his new role as ... executive board and will have a voice in furthering ... actively supported ASRM since 1984 when he joined while ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 Pipette.com announces ... their Twitter followers can submit their #HolidayInTheLab pictures for ... their lab mates. , For those struggling to think ... the Pipette.com Holiday in the Lab Contest provides the ... Twitter followers to send pictures of their chemistree, ...
Breaking Biology Technology:SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3Major Pipette Distributor Pipette.com Announces their Holiday in the Lab Contest 2
... NEW YORK, May 15 SPO Medical ... microprocessor technologies for,use in portable monitoring devices, announced ... 31, 2008., Gross revenues for the period ... gross revenues. The increase in revenues was mainly,attributed ...
... American Oriental,Bioengineering, Inc. (NYSE: AOB ), a ... manufacture and commercialization,of a broad range of prescription ... released the following statement regarding the earthquake in,China:, ... of China,s earthquake and we,are thankful to report ...
... /Xinhua-PRNewswire-FirstCall/ -- Huifeng Bio-,Pharmaceutical Technology, Inc. (OTC ... of plant extracts and pharmaceutical raw materials,for ... today,announced that there was no damage incurred ... Sichuan Earthquake., Immediately following the earthquake, ...
Cached Biology Technology:SPO Medical Reports First Quarter 2008 Results 2SPO Medical Reports First Quarter 2008 Results 3American Oriental Bioengineering Comments on Earthquake 2Huifeng Bio-Pharmaceutical (HFGB) Announces No Earthquake Related Damage to Facilities 2
... to Peroxiredoxin 1 Peroxiredoxin (Prx) ... mammalian members have been known to ... apoptosis. Many isoforms (about 50 proteins), ... acid sequence homology, particularly amino-terminal region ...
... Heat activated ,• Eliminates nonspecific products ... Excellent specificity allows extension through DNA ... ,• Leaves an 'A' overhang ... of GeneChoice DNA Polymerase that remains ...
... beta Synuclein Synucleins are small, soluble ... in certain tumors. The family includes three ... gamma synuclein. The alpha and beta synuclein ... where they are seen mainly in presynaptic ...
NAK/TBK1 (CT) Affinity Purified Polyclonal Antibody...
Biology Products: