Trending Sources

Argonne LCA study finds many alternative fuels consume more water than petroleum and natural gas fuels

Green Car Congress

Researchers at Argonne National Laboratory have analyzed the water consumption for transportation fuels in the United States using an extended lifecycle system boundary that includes the water embedded in intermediate processing steps. Resources.

Water 41

Stanford team sets record for solar-to-hydrogen efficiency of solar water splitting: >30%

Green Car Congress

Researchers at Stanford University have demonstrated solar water splitting by photovoltaic-electrolysis with a solar-to-hydrogen (STH) efficiency of more than 30%—a new record. However, the thermodynamic minimum voltage required to electrolyse water is only 1.23 V Resources.

Solar 57

Texas: From Shale Boom to Water Revolution

Green Car Congress

Now the slick but dry state is becoming famous for water: that precious element that both resolves the drought problem and also makes it possible to pump more oil out of the ground. A Water Revolution Takes Root. per barrel, or approximately $1,100-$1,350 per acre-foot of water.

Water 17

DOE releases report on water-energy nexus

Green Car Congress

The US Department of Energy (DOE) released a new report that frames an integrated challenge and opportunity space around the water-energy nexus for DOE and its partners and lays the foundation for future efforts. Present day water and energy systems are tightly intertwined.

Water 17

Detailed snapshots of photosynthesis at room temperature using SLAC’s X-ray laser show water-splitting reaction

Green Car Congress

One of its molecular mysteries of photosynthesis involves how the photosystem II protein complex harvests energy from sunlight and uses it to split water into hydrogen and oxygen. Zeroing in on water-splitting. Resources.

2016 44

US DOI report highlights impacts of climate change on Western water resources

Green Car Congress

The US Department of the Interior released a report that assesses climate change risks and how these risks could impact water operations, hydropower, flood control, and fish and wildlife in the western United States. Resources. SECURE Water Act Report.

GE and Berkeley Lab developing water-based high energy density flow battery for EVs

Green Car Congress

Conceptual design of a water-based flow battery GE scientists are researching as part of ARPA-E’s RANGE program. Researchers from GE and Lawrence Berkeley National Laboratory (Berkeley Lab) are developing a water-based flow battery targeted at EVs. Resources.

2013 38

GWU team uses one-pot process to co-generate H2 and solid carbon from water and CO2; solar fuels

Green Car Congress

One-pot electrolytic process produces H 2 and solid carbon from water and CO 2. In this study, they focused on the electrolysis component for STEP fuel, producing hydrogen and graphitic carbon from water and carbon dioxide. Resources.

Stanford team develops new low-voltage single-catalyst water splitter for hydrogen production

Green Car Congress

Researchers at Stanford University have developed a new low-voltage, single-catalyst water splitter that continuously generates hydrogen and oxygen. In the reported study, the new catalyst achieved 10 mA cm −2 water-splitting current at only 1.51 V Resources.

2015 20

New version of Argonne lifecycle model for water footprint of biofuels now includes cellulosic feedstocks

Green Car Congress

of the online tool Water Assessment for Transportation Energy Resources ( WATER ) this week. WATER adopts a water footprint methodology, and contains extensive climate, land use, water resource, and process water data.

SwRI, UTSA researchers show biochar is low-cost, effective method to treat fracking water

Green Car Congress

Researchers at Southwest Research Institute (SwRI) and The University of Texas at San Antonio (UTSA) have determined that biochar, a substance produced from plant matter, is a safe, effective and inexpensive method to treat flowback water following hydraulic fracturing, or fracking. Flowback water treatment is a critical sustainability issue for the oil and gas industry. One to five million gallons of water mixed with sand and chemicals are required for the fracking of each well.

Nestlé Waters North America adds 155 new medium-duty propane autogas trucks to delivery fleet

Green Car Congress

Nestlé Waters North America is adding more than 150 medium-duty beverage delivery trucks fueled by propane autogas. Each delivery truck is equipped with a California Air Resources Board- and Environmental Protection Agency-compliant ROUSH CleanTech propane autogas fuel system with a 45-usable gallon fuel tank. The Nestlé Waters North America propane trucks are used to deliver product to its customers across the country including Los Angeles, San Francisco, Washington, D.C.,

Study finds perennial biofuel crops’ water consumption similar to corn

Green Car Congress

Evapotranspiration (ET) refers to the sum total of water lost while the plant is growing, either from evaporation through the plant stem itself (a process called “transpiration”), or from water evaporated off of the plant’s leaves or the ground. This knowledge gap exists for perennial vegetation in general in mesic environments, and has important implications for how landscape water balances will respond to climate change. Resources.

New efficient electrolysis process for direct hydrogen production from biomass; 16.7% of energy required for water electrolysis

Green Car Congress

of the energy consumed for the reported water electrolysis. Resources.

Rice team demonstrates plasmonic hot-electron solar water-splitting technology; simpler, cheaper and efficient

Green Car Congress

Researchers at Rice have demonstrated an efficient new way to use solar energy for water splitting. Here the hot electron is directly injected into water molecules to drive the hydrogen evolution reaction. Resources.

Fuel 17

CEA LITEN develops high-temperature electrolyzer for more efficient hydrogen production from water

Green Car Congress

These results across the system confirm that the high-temperature electrolysis is a credible alternative to produce economically viable hydrogen without using fossil resources.

USGS releases first shale-oil and shale-gas resource potential assessment for the Alaska North Slope

Green Car Congress

The US Geological Survey has released its first estimate of the potential of undiscovered, technically recoverable onshore shale oil and gas resources in Alaska’s North Slope. Resources.

Researchers demonstrate water splitting to generate hydrogen using ultra-small Si nanoparticles

Green Car Congress

The ultra-small particles react with water to generate hydrogen 1,000 times faster than bulk silicon, 100 times faster than previously reported Si structures, and 6 times faster than competing metal formulations. The silicon-water reaction is slow and can be self-limiting, via oxide formation.

2013 24

MIT modeling study finds 52% of projected global population in 2050 will live in water-stressed areas

Green Car Congress

billion people in 2050 will live in water-stressed areas. The researchers also expect about 1 billion more people to be living in areas where water demand exceeds surface-water supply. A large portion of these regions already face water stress—most notably India, Northern Africa and the Middle East. In studying the socioeconomic changes, they find population and economic growth are responsible for most of the increased water stress. Resources.

Berkeley team develops host-guest nanowires for efficient water splitting and solar energy storage

Green Car Congress

The team reports on their host-guest system of Ta:TiO 2 |BiVO 4 as a photoanode for use in solar water splitting cells in an open-access paper in the journal ACS Central Science. An example of such a method is the production of hydrogen by photoelectrochemical (PEC) water splitting.

Fuel 12

Ford targeting 30% reduction in water used per vehicle by 2015

Green Car Congress

Ford plans to cut the amount of water used to make each vehicle 30% globally by 2015, compared with the amount of water used per vehicle in 2009. If Ford meets the 30% goal, the amount of water used to make a vehicle will have dropped from 9.5 Ford is also developing year-over-year efficiency targets as part of its annual environmental business planning process and has established a cross-functional team spanning several divisions to review water usage more holistically.

BNL Researchers develop low-cost, efficient, non-noble metal electrocatalyst to produce hydrogen from water

Green Car Congress

A team of researchers led by Dr. James Muckerman at the US Department of Energy’s (DOE) Brookhaven National Laboratory (BNL) have developed a new class of high-activity, low-cost, non-noble metal electrocatalyst that generates hydrogen gas from water. Resources.

Researchers demonstrate electrochemical synthesis of ammonia from air and water under mild conditions

Green Car Congress

Andrews have demonstrated that ammonia can be synthesized directly from air (instead of N 2 ) and H 2 O (instead of H 2 ) under a mild condition (room temperature, one atmosphere) with supplied electricity which can be obtained from renewable resources such as solar, wind or marine. is well known that some higher plants can synthesize ammonia or its derivatives directly from air and water at room temperature. Resources.

2013 21

ARPA-E to award $60M to 2 programs: enhancing biomass yield and dry-cooling for thermoelectric power

Green Car Congress

The Transportation Energy Resources from Renewable Agriculture (TERRA) program ( DE-FOA-0001211 ) seeks to accelerate biomass yield gains (especially energy sorghum) through automated, predictive and systems-level approaches to biofuel crop breeding.

2014 33

EPFL team develops low-cost water splitting cell with solar-to-hydrogen efficiency of 12.3%

Green Car Congress

A team led by Dr. Michael Grätzel at EPFL (Ecole Polytechnique Fédérale de Lausanne) in Switzerland has developed a highly efficient and low-cost water-splitting cell combining an advanced perovskite tandem solar cell and a bi-functional Earth-abundant catalyst. Resources.

HZB, 3M team explores water management in PFIA membranes for fuel cells; better performance at higher temps and low humidity

Green Car Congress

These additional acidic sites on each hydrophilic side chain provide additional protons for the proton transport and allow for the formation of larger water channels. Researchers at Helmholtz Zentrum Berlin (HZB) teamed up with 3M to explore the water management in PFIA membranes.

EPFL/Technion team develops “champion” nanostructures for efficient solar water-splitting to produce hydrogen

Green Car Congress

Fe 2 O 3 (hematite) electrodes that achieve the highest photocurrent of any metal oxide photoanode for photoelectrochemical water-splitting under 100?mW?cm Resources. Hydrogen bubbles as they appear in a photoelectrochemical cell. © LPI / EPFL. Click to enlarge.

Swiss team develops effective and low-cost solar water-splitting device; 14.2% solar-to-hydrogen efficiency

Green Car Congress

As the V OC of the presented c-Si cells is only ∼600 mV, four cells need to be connected in series to achieve stable water splitting performance. Resources.

Researchers review risk to water resources from unconventional shale gas development in US

Green Car Congress

They identified four potential modes of water resource degradation: (1) shallow aquifers contaminated by fugitive natural gas (i.e., Resources. Health Natural Gas Water

CU-Boulder team develops more efficient isothermal solar-thermal water splitting technique for H2 production

Green Car Congress

A University of Colorado Boulder team has developed a new solar-thermal water-splitting (STWS) system for the efficient production of hydrogen. STWS cycles have long been recognized as a desirable means of generating hydrogen gas (H 2 ) from water and sunlight, the team notes. Splitting water with sunlight is the Holy Grail of a sustainable hydrogen economy. Resources. Weimer (2013) Efficient Generation of H2 by Splitting Water with an Isothermal Redox Cycle.

SOLAR-JET project demonstrates solar-driven thermochemical conversion of CO2 and water to jet fuel

Green Car Congress

The EU-funded SOLAR-JET project has demonstrated the production of aviation kerosene from concentrated sunlight, CO 2 captured from air, and water. Resources. SOLAR-JET concentrated thermochemical reactor.

Solar 12

UNEP and partners launch Global Initiative for Resource-Efficient Cities; role of public transport

Green Car Congress

The United Nations Environment Programme (UNEP) and partners have launched a new initiative that aims to reduce pollution levels, improve resource efficiency and reduce infrastructure costs in cities across the world. Urban areas account for 50% of all waste, generate 60-80% of all greenhouse gas emissions and consume 75% of natural resources, yet occupy only 3% of the Earth’s surface, UNEP said. —“Sustainable, Resource Efficient Cities in the 21 st Century”. Resources.

Borla Performance Industries developing muffler/membrane unit for exhaust water extraction with ORNL nanopore membrane technology

Green Car Congress

Borla will combine this with its diesel exhaust technology to create a low-cost, novel system that doubles as a device to extract potable water from diesel and other internal combustion exhaust. The researchers at ORNL developed the membrane technology for applications such as gas separation, water purification, energy and water recovery from. The heat recovered could serve to preheat boiler feed water, thus providing an energy savings. Resources.

Natural Resources Canada team investigates solvent extraction process for oil sand bitumen; non-aqueous alternative to hot water processing with reduced environmental impacts

Green Car Congress

A team of two researchers from Natural Resources Canada’s CanmetENERGY reports on a new process for solvent extraction of bitumen from mineable Athabasca oil sands (i.e., Wide-scale deployment of such a non-aqueous process could mitigate some of the negative environmental impacts of the mining method of bitumen production, such as high water consumption; the resultant tailing ponds; energy consumption; and greenhouse gas emissions, they suggest. Resources.

UC Berkeley hybrid semiconductor nanowire-bacteria system for direct solar-powered production of chemicals from CO2 and water

Green Car Congress

Researchers at UC Berkeley have developed an artificial photosynthetic scheme for the direct solar-powered production of value-added chemicals from CO 2 and water using a two-step process involving a biocompatible light-capturing nanowire array with a direct interface with microbial systems.

2015 12

EPA draft assessment finds no widespread, systemic impacts to drinking water resources from fracking

Green Car Congress

The US Environmental Protection Agency (EPA) released a draft assessment on the potential impacts of hydraulic fracturing activities on drinking water resources in the United States. The stages of the hydraulic fracturing water cycle. Water acquisition. Resources.

Oil 1

Caltech engineers devise new thermochemical cycle for water splitting for H2; recyclable, non-toxic, non-corrosive and at lower temperatures

Green Car Congress

The thermochemical production of hydrogen and oxygen from water via a series of chemical reactions is of interest because it directly converts thermal energy into stored chemical energy (hydrogen and oxygen), and thus can take advantage of excess heat given off by other processes. Resources.

Davis 14

EPFL team discovers molybdenum-based catalysts enable more cost-effective hydrogen production from water

Green Car Congress

Water splitting for hydrogen production consists of two half cell reactions; the hydrogen evolution reaction requires catalysts. Yet functional and robust catalysts operating with reasonable current densities (J) at low overpotentials (η) in water are scarce. They are stable and compatible with acidic, neutral or basic conditions in water. Resources.

2011 13

USGS’ first assessment of shale gas resources in the Utica Shale: 38 trillion cubic feet

Green Car Congress

The Utica Shale has a mean of 940 million barrels of unconventional oil resources and a mean of 208 million barrels of unconventional natural gas liquids. Resources.

Researcher urges more effort on assessment of land and water impacts of oil sands production; reference point for other unconventional fuels

Green Car Congress

Bitumen production from the Canadian oil sands provides a point of reference that could be used to observe and better manage the land and water impacts of a rapid transition to unconventional fuels, suggests Dr. Sarah Jordaan of the Energy Technology Innovation Policy Research Group, Department of Earth and Planetary Sciences, Harvard University. The two types of bitumen production—surface mining and thermal in situ production—have different land and water impacts.