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

iversity of Science and Technology, to model the relative efficiencies of the technologies at converting a given amount of sunlight to miles driven.

The results, which appear in a paper titled "Spatially Explicit Life Cycle Assessment of Sun-to-Wheels Transportation Pathways in the U.S." and published in the Dec. 26 issue of the journal Environmental Science & Technology, showed photovoltaics (PV) to be much more efficient than biomass at turning sunlight into energy to fuel a car.

"PV is orders of magnitude more efficient than biofuels pathways in terms of land use 30, 50, even 200 times more efficient depending on the specific crop and local conditions," says Geyer. "You get the same amount of energy using much less land, and PV doesn't require farm land."

The researchers examined three ways of using sunlight to power cars: a) the traditional method of converting corn or other plants to ethanol; b) converting energy crops into electricity for BEVs rather than producing ethanol; and C) using PVs to convert sunlight directly into electricity for BEVs.

Because land-use decisions are local, Geyer explains, he and his colleagues examined five prominent "sun-to-wheels" energy conversion pathways ethanol from corn or switchgrass for internal combustion vehicles, electricity from corn or switchgrass for BEVs, and PV electricity for BEVs for every county in the contiguous United States.

Focusing the LCA on three key impacts direct land use, life cycle greenhouse gas (GHG) emissions, and fossil fuel requirements the researchers identified PV electricity for battery electric vehicles as the superior sun-to-wheels conversion method.

"Even the most efficient biomass-based pathwayrequires 29 times more land than the PV-based alternative in the same locations," the authors write. "PV BEV systems also have the lowest life-cycle GHG emissions throughout the U.S. and the lowest fossil fuel inputs, except in locatio
'/>"/>

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:7/11/2014)... When researchers at the National Institute of Standards ... do their work more effectively, they often prove ... Such was the case recently for M. Lorna ... in the growing specialization of glycomics. Glycomics is ... called glycans that are attached to proteins and ...
(Date:7/11/2014)... University, Sweden, have explored two different ways that ... leading to the formation of oxygen molecules in ... the scientific journal Nature Communications . , ... synthetic catalysts for water oxidation, which are key ... direct storage of solar energy in fuels like ...
(Date:7/11/2014)... evidence that under the normal circumstances, astrocytes ... maintain neuronal environment, and exhibit therapeutic and ... disease. Previous studies have found that nerve ... chemical induction have reduced viability, which produces ... Xiaodong Yuan, Kailuan General Hospital, Hebei United ...
Breaking Biology News(10 mins):Molecular snapshots of oxygen formation in photosynthesis 2
... with colleagues from the Botswana National Museum shed new ... to southern Africa and from where. A domestic cow ... from a site at Toteng, located in the Kalahari ... Accelerator Mass Spectrometry (AMS) radiocarbon technique, provides the oldest ...
... found that the two primary areas of the human ... cortex used in higher-level thought undergoes more extensive changes ... such as heartbeat, breathing and balance. Their work, based ... of human and chimpanzee brains, also shows that the ...
... first time used gene therapy to successfully treat heart ... model that is genetically susceptible to a human muscular ... journal Circulation, the authors say that this is the ... the body. , "Previous attempts at systemic gene therapy ...
Cached Biology News:Human cerebellum and cortex age in very different ways 2Gene therapy reverses genetic mutation responsible for heart failure in muscular dystrophy 2Gene therapy reverses genetic mutation responsible for heart failure in muscular dystrophy 3Gene therapy reverses genetic mutation responsible for heart failure in muscular dystrophy 4
(Date:7/11/2014)... July 11, 2014 , Not for ... into or from any jurisdiction where to do so would ... Shire plc ("Shire" or the "Company") (LSE: SHP, ... afternoon.  Shire confirms it has held a meeting with representatives ... Shire without the prior agreement or approval of AbbVie. ...
(Date:7/11/2014)... , July 11, 2014 /CNW/ - Sunovion Pharmaceuticals ... APTIOM TM (eslicarbazepine acetate) for use as a ... in patients with epilepsy who are not satisfactorily controlled ... for use in patients under 18 years of age. ... common neurological disorders and according to Epilepsy Canada, it ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Product ... in very low abundance and are often “lost ... and time-consuming. , Join presenters Dr. Rowel Tobias, ... Dr. John Anders, Head of Quality at Nanotherapeutics, ... approach that can speed detection and quantitation while ...
(Date:7/10/2014)... 2014 Unraveling life’s mysteries can intrigue, ... Archer Family purchased a DNA test to ... up with a lifetime of memories, sharing, and closeness. ... members’ DNA genuinely brought the family closer together. ... into genetic history and prior to taking the ...
Breaking Biology Technology:Shire plc - Statement re: Media Speculation 2Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 2Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 3Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 4Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5
... Helena Rojas to Director of Global Business Development Operations , ... ... Ltd., a leading provider of multilingual localization, testing and outsourced software ... to Vice President of Global Business Development and Helena Rojas to ...
... China, March 4 /PRNewswire-Asia-FirstCall/ -- Mindray Medical,International Limited ... manufacturer and,marketer of medical devices worldwide, today announced ... Officer of the Company effective as of May ... step down from the role of Chief,Financial Officer ...
... 4 The Healthcare practice at Frost ... 2009 Quarterly Analyst Briefing Presentation on the North ... March 5, 2009 at 10:00 a.m. PST. (Logo: ... growth and is experiencing several notable trends, such ...
Cached Biology Technology:Localization and Translation Leader CSOFT International Ltd. Recognizes Efforts of Two Key Members of its Business Development Team 2Localization and Translation Leader CSOFT International Ltd. Recognizes Efforts of Two Key Members of its Business Development Team 3Mindray Appoints Mr. Ronald Ede as Chief Financial Officer 2Mindray Appoints Mr. Ronald Ede as Chief Financial Officer 3Frost & Sullivan's Biopharmaceuticals Market Briefing to Address the Use of Embryonic Stem Cells 2
These 22x40mm rectangular No.1 Corning cover glasses are made from No. 0211 zinc titania glass and are 0.16 to 0.19mm thick. • Approx. Pcs Oz : 73...
The model 55D Rocking Shaker provides the same Reliable quality as the 55S, but double the value. The 55D gives you an additional platform with a height of 3.25 in....
... rolled steel with stove enamel coated (RAL 7035 ... Front, back and side windows ... lamps Internal adjustable tempered glass shelf ... Lighting 600 lux ...
... Shaker provides the exact agitation needed ... very slow to fast speed and ... a gentle wave motion that lifts ... membranes to achieve faster, more uniform ...
Biology Products: