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Alaska Airlines Begins Cross-Country Flights on Used Cooking Oil Blend


Last week, Alaska Airlines began a series of cross-country flights from Seattle to Washington, D.C. using a biofuel blend that is can be comprised of used fryer oil, chicken fat, algal oil or parts of inedible plants.  The 80/20 blend of jet fuel and biofuel will carry 75 flights on the trans-continental trek.

The fuel is being supplied by Dynamic Fuels, which counts Tyson Foods as a partner, providing chicken fat and beef tallow from their processing plants.  Alaska Airlines will use the fuel on a daily Boeing 737 flight that covers the Seattle to D.C. route, as well as on three daily Q400 turboprop flights that go from Seattle to Portland.

The biofuel is chemically identical to jet fuel, which means the flights could actually run completely on the alternative fuel and not be blended, but right now the cost is prohibitive.  The biofuel blend that Alaska Airlines is using cost it $17/gallon compared to $3/gallon for traditional jet fuel.  But the expectation is that as production of biofuels like these increase, the prices will steeply drop.

via NY Times

 

Bloom Boxes Headed to Delaware


Bloom Energy will soon be installing 30 MW-worth of Bloom Boxes in Delaware in what will be the company's largest project yet.

Delaware regulators just approved the plan that calls for a factory to be built for the fuel-cell boxes.  State utility Delmarva Power will raise a large portion of the funds required to finance the project by adding a $1.34-per-month surcharge to its customers' bills.  That surcharge will add up to about $100 million over the next 20 years.

The state is also offering $18 million in incentives and the project hopes to receive federal grants as well.

Bloom Energy has already found customers in Google, eBay, Adobe, AT&T and through pilot projects with utilities PG&E, Southern California Edison and Tennessee's EPB, but none of these projects come close to the Delaware deal that could grow to as much as 50 MW.

Beyond a cleaner source of energy, the project will bring Delaware 900 new jobs at the factory and $300 million in annual economic activity.

via Greentech Media

 

 

USDA Study Says Wood Is the Greenest Building Material

Green building advocates and construction product marketers have different views of what the greenest building material is. Different ways of determining what green means will lead to different results. But according to a recent report from the U.S. Forest Service, wood is the greenest building material.

This analysis seems to rest largely on the carbon footprint of various construction materials.

"The argument that somehow non-wood construction materials are ultimately better for carbon emissions than wood products is not supported by our research," said David Cleaves, the U.S. Forest Service Climate Change Advisor. "Trees removed in an environmentally responsible way allow forests to continue to sequester carbon through new forest growth. Wood products continue to benefit the environment by storing carbon long after the building has been constructed."

Wood is also unique as a renewable resource that actively sequesters carbon from the atmosphere. As they grow, trees absorb CO2 from the atmosphere and lock it into the structure of the wood. In doing so, wood is a carbon storage material, and that carbon is locked away until the wood decomposes or burns.

The report additionally recommends that USDA further its outreach efforts to educate the construction industry and the general public to be more aware of the suitability of wood for non-residential construction and to further study of the carbon benefits of the use of wood in construction.

image: CC-SA 2.5 by Andreas Trepte, www.photo-natur.de

via: Architect magazine

 

Iceland Getting World's First Zero-Carbon Data Center


A new pre-fab data center will soon be heading to Iceland where it will become the world's first to achieve zero carbon status.  The IT company Colt will build the center's 37 components and then ship them off to Iceland where they will be assembled.

The ability for this data center to operate without carbon emissions has everything to do with its placement in Iceland.  The center will be powered exclusively by geothermal and hydroelectric sources and cooling will be taken care of by using the cold Iceland air.

The 500 square meter facility will only take four months to complete.  It will contain the servers of UK data hosting company Verne.  The facility will be able to supply 100 MW of computer load at any time and the capacity will be expanded as demand grows.

via Guardian

 

Evaporation from Trees Has Global Cooling Effect


Scientists at the Carnegie Institution's Global Ecology department have published a study that found that evaporation from trees has a cooling effect on the climate.

Because water vapor is known to act as a greenhouse gas, scientists were unsure what role evaporation played, but it turns out that evaporation from trees causes low-level clouds to form in the atmosphere, which reflect the sun's rays.  The scientists created models that showed that not only did cooling occur locally (which was already known), but that the effect was a global one where tree evaporation created more low-level clouds around the world.

Trees have proven themselves to be great climate regulators and this new finding just adds to the list of reasons to preserve our forests and plant new trees.

via Yale e360

 
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