Optimizing Communication Networks in Renewable Energy Markets with Wireless Technologies

Each of the applications that can be performed using data radios in solar and wind power generation plants are conducted today in many thousands of other market applications. These radios are relied upon in mission critical monitoring, controlling and data acquisition situations in the harshest weather and RF conditions.

A Bean Called Castor Can Cut Carbon & Fuel the Future

Vast scope exists for exploitation of castor as a bioenergy crop although there are still some technological challenges to overcome. A combination of conventional breeding methods with biotechnological techniques provides newer routes for designing oils for biofuel purpose.

Hydrogen Gas as a Supplemental Fuel for Automobiles

The system consists of a hydrogen tank, a pressure regulator two cut off valves, a distribution manifold and 4 fuel injectors.

70 gallons of renewable cellulosic gasoline from one dry ton of waste feedstock

Houston-based bioenergy technology firm Terrabon Inc. achieved a significant milestone this week by exceeding its target yield threshold of 70 gallons of renewable cellulosic gasoline from one dry ton of waste feedstock at its demonstration facility in Bryan, Texas. "Just the research around the process conditions to ultimately achieve that conversion is where a lot of the research in our lab, and translating that into our demonstration plant, has really made this come to fruition," said Terrabon CEO Gary Luce. Terrabon's MixAlco process is described by Luce as a linkage of biological fermentation and chemical processes. It begins by treating the feedstock with lime to enhance its digestibility, and then fermenting the biomass using a mixed-culture of microorganisms to produce a mixture of carboxylic acids. Calcium carbonate is added to the fermentation to neutralize the acids to form corresponding carboxylate salts, which are then dewatered, concentrated, dried and thermally converted to ketones. The ketones are then hydrogenated to alcohols that can be refined into renewable gasoline, diesel or jet fuel blendstocks.

'Clean energy standard' pushed

President Barack Obama nudged lawmakers on Tuesday night to take another swing at several high-profile energy ideas, including phasing out of billions of dollars in oil subsidies, ramping up use of biofuels and electric vehicles and setting a nationwide goal for "clean energy sources" that includes nuclear and "clean coal." Obama suggested the White House will also continue to push efforts to reduce greenhouse gas emissions - although he didn't use the phrase climate change - and promote clean energy technologies despite the death of cap-and-trade legislation last year. The president sought to make a direct link between economic growth and clean energy policies, while studiously avoiding picking favorites among several different power sources that can quickly prompt bitter regional fights, as well as partisan ones.

Solar Energy International Launches Free Introduction to Renewable Energy Online Course

Introduction to Renewable Energy is Solar Energy International's NEW free online course for those who wish to learn the basics of renewable energy - including where it is found, how we can harvest it for use in our homes and how it can help ease pressures on the environment. You will not become an expert through this course, but you will get to know renewable energy in its many forms - helping you to decide whether solar, wind or other renewable technologies are right for you. If you've never taken an online course from SEI, this is a great preview into our online course structure and learning experience. We hope this will lower any inhibitions you may have in taking an online course by giving you this free opportunity to experience the SEI Online Campus. This free 10-lesson course includes education on conservation and efficiency, sustainable building, solar thermal, solar electricity, wind power, microhydro power, renewable energy for the developing world, and the economics of renewable energy.

Clean-energy collaboration could enhance U.S.-China relations

Cooperation on clean energy could be a high point in U.S.-China relations leading to benefits for both countries, government and business officials said ahead of a summit between Chinese President Hu Jintao and President Barack Obama. Disputes between the world's two largest economies and energy consumers over China's wind power subsidies and its slowdown in exports of rare earths minerals, used in everything from wind turbines to cell phones, have dominated headlines in recent months. As China tries to transform its economy from the manufacturing of cheap goods into one developing and distributing sophisticated technologies, such as clean energy, spats over intellectual property rights have already troubled trade relations between the two countries. But pressure on both countries to reduce greenhouse gas emissions and reel in fossil fuel demand may push them to overcome these differences.

New 'green city' for environmentally damaged country

Until now, Abu Dhabi has been known as the quiet powerhouse behind its flashier neighbor, Dubai, bankrolling record-breaking skyscrapers and fantastical island resorts intended to make the United Arab Emirates synonymous with luxury, wealth and success. But now Abu Dhabi, capital of the United Arab Emirates, is looking to set a different kind of example. The Masdar development project, due to be completed in 2013, aims to be the world's first carbon-neutral, zero-waste city. Clocking in with a healthy $22-billion price tag, Masdar is to house approximately 1,500 clean-tech companies and 40,000 residents, and support 50,000 commuters. In addition to new technology, the design draws on traditional Arab and Islamic spatial principles to create a natural cooling effect and require less air conditioning. Narrow streets with cantilevered facades are to help maximize shading and reduce glare in order to provide cooler ambient temperatures. These architectural details combined with strategic green space and a renewable-energy-powered public transportation system are intended to minimize energy demand and pollution.

Investors Loved Wind, Solar, Efficiency in 2010

Investors loved the opportunities of the wind and solar sectors and the quick returns of energy-efficiency firms in 2010, according to a U.S. market report (PDF) by Peachtree Capital Advisors. The wind industry had close to $4.8 billion in transaction value in 2010, which included private fund-raising deals, initial public offerings, and mergers and acquisitions. Solar generated a transaction value of $3.2 billion, and energy efficiency, which includes smart grid and LED lighting companies, followed with $2.5 billion. The transaction values run parallel to the cleantech investing numbers for 2010, which found that solar startups continued to draw the most money in venture capital investment last year, while energy-efficiency startups garnered the largest number of deals, according to the Cleantech Group. However, given utility-scale wind is a more matured market, there are fewer investments in next wind technology startups.

Los Angeles gets country's first fully alt-fuel transit fleet

Metro is now the only major transit agency in the U.S. with a fleet run entirely on alternative fuels. Officials say the shift has sharply cut emissions of cancer-causing pollution. After almost two decades of effort to reduce vehicle emissions, the Los Angeles County Metropolitan Transportation Authority retired its last diesel bus Wednesday and became the only major transit agency in the nation with a fleet that is totally equipped with alternative-fuel technologies. In an urban area where diesel buses began operating in 1940, the MTA now has 2,221 buses powered by compressed natural gas, as well as one electric bus and six gasoline-electric hybrids. Transit officials estimate that the elimination of diesel engines has reduced the release of cancer-causing particulates from the bus fleet by 80% and greenhouse gases by about 300,000 pounds a day in one of the smoggiest areas of the country. MTA officials say that compressed natural gas buses cost more to buy and maintain than those powered by diesel but that the increased expenses are offset somewhat over the long run by lower fuel costs.

3 Case Studies from Canadian Solar

Canadian Solar Inc. is one of the world's largest solar companies. As a leading vertically integrated provider of ingot, wafer, solar cell, solar module and other solar applications, Canadian Solar designs, manufactures and delivers solar products and solar system solutions for on-grid and off-grid use to customers worldwide.

Alternative Energy Issues in Cameroon

ORGANIZATION FOR INTEGRATED RURAL DEVELOPMENT (ORIRUDEV) is a Service Organization created in 1998 in the Republic of Cameroon. ORIRUDEV has long standing years of working experience in the domain of Rural infrastructures, Environmental Protection and Renewable Energy. ORIRUDEV contributes to improve rural livelihoods through making available, affordable, environmentally sound, basic electricity services from renewable energy (solar, hydro, wind).

Australian Students Break Solar-Powered Land Vehicle Speed Record

According to the company's stats, the Sunswift IV produces about 1200 watts - the same power it takes to run a toaster.

Dear President Obama and House Speaker Boenher

Here are two letters written to President Obama and House Speaker Boehner outlining some common frustrations.

Solar Shutters

The PV Solar Shutter is a perfect fit because it requires no roof space and no large battery banks, and is very easy to install and uninstall. Each unit can purchase its own shutters, have its own power source, and offset usage one window at a time. Even renters can, like any other window covering, take their shutters with them if when they move.

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