http://www.theguardian.com/environment/2014/apr/20/corn-biofuels-gasol

In the baseball world, a superstar can do five things exceptionally well: hit, hit for power, run, throw and field. In the parallel universe of the microbiological world, there is a current superstar species of blue-green algae that, through its powers of photosynthesis and carbon dioxide fixation, or uptake, can produce (count 'em) ethanol, hydrogen, butanol, isobutanol and potentially biodiesel. Now that's some five-tool player.
http://phys.org/news/2013-09-blue-green-algae-five-tool-player-fuel.ht

The EU-funded project DEMA (Direct Ethanol from MicroAlgae) is working to produce bioethanol directly from cyanobacteriaa microalgae found in almost every terrestrial and aquatic habitat, including in oceans, lakes and damp soil, and on rocksfor less than €0.40/liter (US$2.00/gallon).


Source: DesMoines RegisterThe U.S. oil and gas industry on Tuesday bolstered its argument for the Supreme Court to strike down the Environmental Protection Agency's decision to allow a higher blend of ethanol in newer automobiles.In a legal brief filed with the high court, the American Petroleum Institute, which represents 500 oil and natural gas companies, insisted that transportation fuels containing 15 percent ethanol could damage cars and trucks.The U.S. Court of Appeals for the District of Columbia ruled last August that trade groups representing the automobile, food and other industries did not have sufficient grounds to challenge the use of the new blend known as E15. In response, API appealed to the Supreme Court in February. The high court could make a decision about whether to hear the case soon."E15 could leave millions of consumers with broken-down cars and high repair bills," said Bob Greco, API's director of downstream and industry operations. "It could also put motorists in harm's way when vehicles break down in the middle of a busy highway. We are asking the Supreme Court to step in and protect consumers by striking down EPA's dangerous E15 mandate before it's too late."API's brief was filed as a response to assertions by ethanol backers who have asked the Supreme Court to let the previous ruling stand.The EPA, which approved the new blend in January 2011, gave the OK for it to go on sale last June. The blend, which has been approved for use in cars and light trucks built since 2000 but is banned from older vehicles and light equipment, has been slow to get off the ground. Only a few stations in the Midwest, including a half dozen in Iowa, have sold the E15 blend.Ethanol groups said appeal to the Supreme Court was the latest sign of desperation by the oil and gas industry."API is basically presenting evidence to prove they will do whatever they can to keep from having to compete with any other fuels," said Ron Lamberty, senior vice president for the American Coalition for Ethanol. "Big Oil will take any approach available to delay E15 implementation while continuing its public smear campaign against it."
Climate Progress recently reported on a study that found both economic and environmental benefits if homes in the northeastern United States upgraded older heating systems by moving from heating oil to switchgrass. However, one point to emphasize was the findings were specific to those circumstances - the region, the homes, and that particular use.
Switchgrass was not nearly as good an idea for electricity generation or transportation fuel. Further confirming the need for a diversity of renewable solutions to our energy needs, a recent study determined that electricity generated by solar beats out biofuels for powering cars under myriad scenarios.
The report, put together by a team from the University of California, Santa Barbara and the Norwegian University of Science and Technology, and published in Enviornmental Science and Technology, compared five different approaches to see what was the most efficient way to power a compact passenger vehicle for every 100 kilometers driven:
- Battery-electric vehicles (BEVs) run on electricity from solar power.
- Battery-electric vehicles run on electricity from switchgrass.
- Internal combustion vehicles (ICVs) run on switchgrass biofuel.
- Battery-electric vehicles run on electricity from corn.
- Internal combustion vehicles run on corn-based biofuel.
The analysis considered land-use, greenhouse gas emissions, fossil fuel use, and took into account the production and use life cycles of both the fuels themselves and the vehicles they power.
In terms of land-use, solar significantly out-performed all other options. It performed modestly better than switchgrass in terms of greenhouse gas emissions, and significantly better than corn-based biofuel. Solar was actually equal or slightly worse than switchgrass when it came to fossil fuel requirements over the totality of the life cycle, but it still out-performed corn-based internal combustion. (And, of course, gasoline.)
So all things considered, a pretty clear win for solar-powered electric battery vehicles:
A write up over at Green Car Congress has more details on the assumptions and variables in the study's modeling.
"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," Roland Geyer, a UCSB Bren School of Environmental Science & Management Professor, told Science Daily. "You get the same amount of energy using much less land, and PV doesn't require farm land." The central bottleneck, as the report notes, is the low efficiency of photosynthesis:
Biofuels for ICVs and bioelectricity for BEVs use photosynthesis to convert solar radiation into transportation services, that is, they are sun-to-wheels transportation pathways. While photosynthesis has a theoretical maximum energy conversion efficiency of 33 percent, the overall conversion efficiency of sunlight into terrestrial biomass is typically below 1 percent, regardless of crop type and growing conditions.
"Today's thin-film PV is at least 10-percent efficient at converting sunlight to electricity," Geyer explained - hence solar's superior performance. In fact, the WWF's Solar PV Atlas found that as far as land-use goes, solar is so efficient that less than 1 percent of global land areas would be needed to supply all the world's electricity needs in 2050.
Traditional corn-based biofuels are problematic on all sorts of levels: Carbon emissions from agricultural production over their full life cycle largely wipe out any carbon benefits at the point of actual vehicle use. They compete with human food supplies and food cropland, driving up global prices and contributing to global poverty and instability. And new cropland sequesters less carbon from the atmosphere than the grassland or forest it typically displaces.
Switchgrass and other cellulosic biofuels, while they avoid disrupting food supplies, are not immune to these other flaws either. On top of that, their commercial viability at any time in the near future is far from certain.
For the clean car fleet of the future, electrical and hybrid vehicles relying on a grid powered by solar - and presumably wind, hydroelectric, and such - still appears to be the way to go.
http://thinkprogress.org/climate/2013/03/27/1783781/for-powering-cars-
The Dutch airline company KLM has started powering planes with a fuel mixture that is 25% used cooking oil, and 75% jet fuel (or at least, at least it was made from cooking oil). These regular flights represent a big step forward in alternative fuel flight.
The cooking oil used is obtained from restaurants in the U.S state of Louisiana. The oil was formerly used to fry catfish, cracklins, and other treats. After being used to prepare your food, it is refined at a plant near Baton Rouge, Louisiana, then carried to New York for use in the passenger jets. I'm sure it would feel good to eat at a restaurant that donates its oil to help reduce emissions.
Some believe that it smells like fast food, but, it is claimed to be totally safe for the jets, and reduce emissions by up to 80%. Using it is just like using jet fuel, and it is unnoticeable to pilots. These advantages are wonderful.
As usual, there is a downside, as most new technologies require work to get off the ground: The cooking oil-based fuel is cost-prohibitive. It may be difficult to expand this to struggling airlines that can hardly afford basic, normal operation. But if the costs come down, this could be a very reasonable response to ever-increasing oil prices.
"A lot still has to happen before biofuel will be available on a large scale and for it to be economically competitive in relation to fossil-fuel kerosene," KLM said in a statement. "We cannot achieve this alone. We absolutely need the commitment and support of all the relevant parties: business, government and society.".
The jets used are of the Boeing 777 type, and they will undergo 25 transatlantic test flights, as other jets have done.
Source: BBC
The post KLM To Offer Weekly Cooking Oil-Fueled Flights appeared first on Gas 2.
http://gas2.org/2013/03/19/klm-to-offer-weekly-cooking-oil-fueled-flig

1) Concentrated Solar Power 2) Saltwater greenhouses 3) Outside vegetation and evaporative hedges 4) Photovoltaic Solar Power 5) Salt production 6) Halophytes 7) Algae production
The first pilot plant in a program of installations that can sustainably produce crops, electricity, biofuels, and even plants for re-vegetation efforts in a desert environment is now up and running in the Middle Eastern nation of Qatar.
The Sahara Forest Project, which brings outfits from both Qatar and Norway together, uses desert air, sunlight, and saltwater as inputs for a system that aims to be environmentally sustainable, beneficial for local human development, and financially viable over the long term. As the project's CEO, Joakim Hauge, puts it: "The Sahara Forest Project is all about taking what we have enough of, like saltwater, CO2, sunlight, and deserts, to produce what we need more of: sustainably produced food, water, and energy." The hope is that the pilot project can be scaled up to installations in drier and desert climates around the world.
Essentially, the plant takes multiple sustainable technologies and integrates their inputs and outputs into a single multistage system, thus minimizing both waste and ecological footprint:
The basic advantage of the Sahara Forest Project is that it doesn't use any fundamentally new or experimental technology - it merely recombines established technologies in creative ways.
At the same time, at least one of its goals - growing plants for reforestation - may be overly ambitious. "Trying to grow trees in the Sahara desert is not the most appropriate approach," Patrick Gonzalez, a forest ecologist at the University of California, Berkeley, told National Geographic back in 2010. "I can imagine that this scheme and type of technology in limited cases might work in certain areas like Dubai, where they're used to making palm-shaped islands and 160-story-tall buildings."
But for the more modest goal of returning a desert to its natural former ecosystem, "it would be more effective, but less flashy, to work with local people on community-based natural-resource management."
http://thinkprogress.org/climate/2013/01/30/1515871/sahara-forest-proj
