‘Fool’s gold’ aids discovery of new options for cheap, benign solar energy

ScienceDaily (Nov. 28, 2011) — Pyrite, better known as “fool’s gold,” was familiar to the ancient Romans and has fooled prospectors for centuries — but has now helped researchers at Oregon State University discover related compounds that offer new, cheap and promising options for solar energy.

These new compounds, unlike some solar cell materials made from rare, expensive or toxic elements, would be benign and could be processed from some of the most abundant elements on Earth. Findings on them have been published in Advanced Energy Materials, a professional journal.

Iron pyrite itself has little value as a future solar energy compound, the scientists say, just as the brassy, yellow-toned mineral holds no value compared to the precious metal it resembles. But for more than 25 years it was known to have some desirable qualities that made it of interest for solar energy, and that spurred the recent research.

The results have been anything but foolish.

Read the complete article at SceinceDaily

What’s the Greenest Way to Dry Your Hands?

Editor’s Note: This article, originally published on November 15, 2011, was updated today with a response from Kimberly-Clark Professional.

It’s a question that bedevils facility managers. What’s the most environmentally conscious and cost effective way for people to dry their hands in company and public restrooms?

Paper towels made from recycled content?  Electric hand dryers? Cotton towels that need to be laundered?

Dyson, the maker of the cold air-driven hand dryers, contends its Airblade is the best option when it comes to energy efficiency and commissioned a study by the Massachusetts Institute of Technology to look into the matter.

Read the complete article at GreenBiz.com

High-Efficiency Motors, Drives Can Cut 10% of Energy Spend

In its Motors and Drive Technology Overview, the trust says that a running motor’s energy use in one year can cost up to ten times its purchase cost. Typical running costs for a fully loaded motor range from £1,770 a year for a 2.2kW motor to £25,970 a year for a 37kW motor, the guide says, assuming an electricity price of £0.08/kWh.

The Carbon Trust says that because motors are so widespread, and often hidden within machinery, they tend to be left running even when they are not needed. It recommends that companies identify equipment that can be switched off, and consider the risks of doing so: for example, what is the potential for the operator to switch off the wrong motor, or switch off at the wrong time? Does flipping the switch pose health and safety risks?

Enterprises should consider automatic switch-off using timers, interlocks or load-sensing devices. If using manual switch-offs, companies should consider writing a switch-off procedure, and placing it where operators can easily see it.

The Carbon Trust has also published its Variable Speed Drives Technology Guide, showing various ways that VSDs can be used to reduce energy use in a range of motor applications.

According to the guide, about half of all motor applications have some kind of varying demand. This includes fans, pumps, winding reels and precision tools.

Wood Biofuel Could Be a Competitive Industry by 2020

ScienceDaily (Nov. 8, 2011) — Fuel made from wood could become a competitive commercial alternative to fuel made from corn by 2020 if the wood biofuel industry is supported, according to a new University of British Columbia study.

Corn ethanol is currently blended with gasoline to satisfy government-mandated targets to include renewable content in transportation fuel. Compared to corn, wood-based biofuel is considered more sustainable but is not currently produced in large commercial quantities in Canada and the United States because the costs are too great.

The study, published in the most recent issue of the journal Biofuels Bioproducts & Biorefining, identifies several opportunities for reducing these costs. Researchers in UBC’s Faculty of Forestry found that large-scale commercial production of wood-based ethanol, also known as cellulosic ethanol, will reduce capital and operation costs and assist in achieving the improvements necessary for wood-based ethanol to compete, without government support.

Read the complete article at ScienceDaily

After 25 Years, Sustainability Is a Growing Science That’s Here to Stay

ScienceDaily (Nov. 21, 2011) — Sustainability has not only become a science in the past 25 years, but it is one that continues to be fast-growing with widespread international collaboration, broad disciplinary composition and wide geographic distribution, according to new research from Los Alamos National Laboratory and Indiana University.

The findings, recently published in the Proceedings of the National Academy of Sciences, were assembled from a review of 20,000 academic papers written by 37,000 distinct authors representing 174 countries and over 2,200 cities. Authors of the paper, Los Alamos research scientist Luís M. A. Bettencourt, and Jasleen Kaur, a Ph.D. student in Indiana University Bloomington’s School of Informatics and Computing, also identified the most productive cities for sustainability publications and estimated the field’s growth rate, with the number of distinct authors doubling every 8.3 years. The study covered research generated from 1974 through 2010.

Read the complete article at ScienceDaily

EPA Releases Guidelines to Ensure Healthy Indoor Air during Home Energy Upgrades

New protocols protect indoor air quality while enhancing home energy efficiency

WASHINGTONThe U.S. Environmental Protection Agency (EPA) released its Healthy Indoor Environment Protocols for Home Energy Upgrades to better integrate health protections into energy efficiency programs. This first-of-its-kind guidance will provide the home energy industry the ability to identify, manage, and reduce health risks during home energy upgrades, retrofits or remodeling.

“These protocols will help the home energy retrofit industry deliver high quality work while protecting the health of families,” said Gina McCarthy, EPA Assistant Administrator for the Office of Air and Radiation. “Homeowners, occupants, and the energy services industry will benefit greatly from this simple and clear guidance for addressing critical indoor air quality risks during home energy upgrades. Following these protocols will help families save money on utilities while safeguarding their health.”

EPA’s new protocols describe a step-by-step process for conducting assessments to evaluate indoor air conditions and the potential for risks that may arise during residential energy upgrades. The protocols include recommended minimum specifications and best practices to maintain or improve indoor air quality.

The protocols serve as a companion document to the U.S. Department of Energy’s (DOE) guidelines for Home Energy Professionals. The DOE guidelines are intended to foster the growth of a skilled work force that will increase the homeowner’s confidence in the retrofit industry and increase the demand for home energy retrofits. Together, the DOE guidelines and EPA protocols will help facilitate increased home energy efficiency, improve the quality of work performed and provide healthier homes for America.

By working with the home energy upgrade industry, other federal agencies, industry standard organizations, and state and local programs to implement these protocols, EPA and its partners will help improve indoor air quality and energy efficiency in homes around the country. The protocols were announced today at the Weatherization Plus Health Regional Conference in San Diego, Calif.

U.S. Department of Energy’s Guidelines for Home Energy Professionals: http://www1.eere.energy.gov/wip/retrofit_guidelines.html
EPA’s Healthy Indoor Environment Protocols for Home Energy Upgrades: http://www.epa.gov/iaq/homes/retrofits.html

We Can’t Wait: Obama Administration Proposes Historic Fuel Economy Standards to Reduce Dependence on Oil, Save Consumers Money at the Pump

Next phase in national program for light-duty vehicles will save consumers thousands of dollars at the pump while saving billions of barrels of oil, curbing pollution, enabling long-term planning for automakers

WASHINGTON – Building on President Obama’s historic national program, the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Transportation (DOT) today formally unveiled their joint proposal to set stronger fuel economy and greenhouse gas pollution standards for model year 2017-2025 passenger cars and light trucks. Cars, SUVs, minivans, and pickup trucks are currently responsible for nearly 60 percent of U.S. transportation-related petroleum use and greenhouse gas emissions.

Today’s announcement is the latest in a series of executive actions the Obama Administration is taking to strengthen the economy and move the country forward because we can’t wait for Congressional Republicans to act.  When combined with other historic steps this administration has taken to increase energy efficiency, this proposal will save Americans over $1.7 trillion at the pump, nearly $8,000 per vehicle by 2025. These combined actions also will reduce America’s dependence on oil by an estimated 12 billion barrels, and, by 2025, reduce oil consumption by 2.2 million barrels per day – enough to offset almost a quarter of the current level of our foreign oil imports. Taken together, these actions will also slash 6 billion metric tons in greenhouse gas emissions over the life of the programs.

Today’s proposed standards alone will slash oil consumption by 4 billion barrels and cut 2 billion metric tons of greenhouse gas pollution over the lifetimes of the vehicles sold in those years.

“These unprecedented standards are a remarkable leap forward in improving fuel efficiency, strengthening national security by reducing our dependence on oil, and protecting our climate for generations to come. We expect this program will not only save consumers money, it will ensure automakers have the regulatory certainty they need to make key decisions that create jobs and invest in the future,” said U.S. Transportation Secretary Ray LaHood. “We are pleased that we’ve been able to work with the auto industry, the states, and leaders in the environmental and labor communities to move toward even tougher standards for the second phase of the president’s national program to improve fuel economy and reduce pollution.”

“By setting a course for steady improvements in fuel economy over the long term, the Obama Administration is ensuring that American car buyers have their choice of the most efficient vehicles ever produced in our country. That will save them money, reduce our nation’s oil consumption and cut harmful emissions in the air we breathe,” said EPA Administrator Lisa P. Jackson. “This is an important addition to the landmark clean cars program that President Obama initiated to establish fuel economy standards more than two years ago. The progress we made with the help of the auto industry, the environmental community, consumer groups and others will be expanded upon in the years to come — benefitting the health, the environment and the economy for the American people.”

The proposed program for model year 2017-2025 passenger cars and trucks is expected to require increases in fuel efficiency equivalent to 54.5 mpg if all reductions were made through fuel economy improvements. These improvements would save consumers an average of up to $6,600 in fuel costs over the lifetime of a model year 2025 vehicle for a net lifetime savings of $4,400 after factoring in related increases in vehicle cost. Overall, the net benefit to society from this rule would total more than $420 billion over the lifetime of the vehicles sold in model year 2017-2025.

Today’s action builds on the success of the first phase of the Obama Administration’s national program(2012-2016), which will raise fuel efficiency equivalent to 35.5 mpg by 2016 and result in an average light vehicle tailpipe CO2 level of 250 grams per mile. These standards are already in effect and saving consumers money at the pump now. Combined with 2011 fuel economy standards and the standards in effect for 2012-2016, today’s proposal represents the most significant federal action ever taken to reduce greenhouse gas emissions and improve fuel economy.   Taken together, these actions would reduce greenhouse gas emissions by half and result in model year 2025 light-duty vehicles with nearly double the fuel economy of model year 2010 vehicles.

The national policy on fuel economy standards and greenhouse gas emissions created by DOT and EPA provides regulatory certainty and flexibility that reduces the cost of compliance for auto manufacturers while reducing oil consumption and harmful air pollution. By continuing the national program developed for model year 2012-2016 vehicles, EPA and DOT have designed a proposal that allows manufacturers to keep producing a single, national fleet of passenger cars and light trucks that satisfies all federal and California standards. It also ensures that consumers will continue to enjoy a full range of vehicle choices with performance, utility and safety features that meet their individual needs.

The standards will rely on innovative technologies that are expected to spur economic growth and create high-quality jobs across the country. Major auto manufacturers are already heavily invested in developing advanced technologies that can significantly reduce fuel use and greenhouse gas emissions beyond the existing model year 2012-2016 standards. In addition, a wide range of technologies are currently available for automakers to meet the new standards, including advanced gasoline engines and transmissions, vehicle weight reduction, lower tire rolling resistance, improvements in aerodynamics, diesel engines, more efficient accessories, and improvements in air conditioning systems. The standards should also spur manufacturers to increasingly explore electric technologies such as start/stop, hybrids, plug-in hybrids, and electric vehicles. The model year 2017-2025 proposal includes a number of incentive programs to encourage early adoption and introduction of “game changing” advanced technologies, such as hybridization for pickup trucks.

The proposal released today follows President Obama’s announcement in July that the administration and 13 major automakers representing more than 90 percent of all vehicles sold in the U.S. have agreed to build on the first phase of the national vehicle program. EPA and DOT worked closely with a broad range of stakeholders to develop the proposal—including manufacturers, the United Auto Workers, the State of California, and consumer and environmental groups.

There will be an opportunity for the public to comment on the proposal for 60 days after it is published in the Federal Register. In addition, DOT and EPA plan to hold several public hearings around the country to allow further public input. California plans to issue its proposal for model year 2017-2025 vehicle greenhouse gas standards on December 7 and will finalize its standards in January.

More on the NHTSA and EPA’s notice of proposed rulemaking: http://www.nhtsa.gov/fuel-economy

DOE and EPA Release 2012 Annual Fuel Economy Guide

The Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA) are releasing the 2012 Fuel Economy Guide, providing consumers with information that can help them choose a more efficient new vehicle that saves them money and reduces greenhouse gas emissions. While fuel efficient vehicles come in a variety of fuel types, classes, and sizes, many new advanced technology vehicles debut on this year’s annual list of top fuel economy performers. Fuel economy leaders within each vehicle category—from two-seaters to large SUVs—include widely available products such as conventional gasoline models and clean diesels.

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