Comments Off on Amazon to install large-scale solar systems on 50 facilities by 2020
Amazon just announced plans to install 41 megawatts worth of solar power on the roofs of its US facilities this year. The project is part of amazon’s larger initiative to install solar systems on 50 of its order fulfillment facilities around the globe by 2020. “As our fulfillment network continues to expand, we want to help generate more renewable energy at both existing and new facilities around the world in partnership with community and business leaders,” said Dave Clark, Senior Vice President of Worldwide Operations. “We are putting our scale and inventive culture to work on sustainability—this is good for the environment, our business and our customers. By diversifying our energy portfolio, we can keep business costs low and pass along further savings to customers. It’s a win-win.” The solar projects planned for this year will see a total of 41 megawatts installed on the rooftops of Amazon facilities in California, New Jersey, Maryland, Nevada and Delaware. Depending on various factors, the solar installations could provide the facilities with up to 80% of the energy needed to run. Related: Amazon’s new Prime Air delivery drone is part helicopter, part airplane https://youtu.be/R7tMiQcF9tY According to Amazon, the company is also working on other clean energy projects – including a wind farm in Texas and a network of wind and solar farms in Indiana, North Carolina, Ohio, and Virginia. It’s also possible some of this power could be used to energize other initiatives Amazon is working on – such as the eventual delivery of orders by drones , and the company’s plans to build a giant floating warehouse in the sky from which the drones would work. Via Businesswire Images via Amazon/Businesswire
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Amazon to install large-scale solar systems on 50 facilities by 2020
Comments Off on What it takes to get corporate clean energy deals done
3M shares its experiences in entering a 120 megawatt power purchase agreement with a wind farm in Texas and Kohl’s talks about why its onsite solar investments save money.
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What it takes to get corporate clean energy deals done
Comments Off on What’s a forest worth? Disaster assistance (finally) accounts for nature
Here’s how the government is finally embracing the once-radical notion of valuing nature’s services.
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What’s a forest worth? Disaster assistance (finally) accounts for nature
August 4, 2015 by
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Comments Off on Engineers install the world’s largest floating wind turbine off the coast of Fukushima
After the 2011 earthquake and subsequent tsunami that destroyed the Fukishima nuclear power plant, Japan is diversifying its energy mix. Engineers are installing the world’s largest floating wind turbine just 12 miles off the Fukishima coast. It is one of three floating turbines sponsored by the Japanese government that will be connected to floating sub-power station. Read the rest of Engineers install the world’s largest floating wind turbine off the coast of Fukushima
Comments Off on A Quick Look at the Sheffield Wind Farm (40 MW) in Northern Vermont
Building a wind farm, when done right, can be a boon to small communities as well as the environment.
October 31, 2011 by
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Comments Off on IBM Supercomputers Help Vestas Squeeze the Most Out of Wind Farms
Supercomputers can help us figure out where are the best spots for wind farms. This kind of optimization can increase clean energy production per installed turbine.
Comments Off on Alternative fuels to power our world after petroleum
Shallu Sharma: Alternative fuels Alternative fuels after petroleum The steady exhaustion of conventional energy sources have left us with acute energy resources. The way out is to generate energy from mother nature and its abundant natural endowment in various alternative forms. Alternative fuels provide choices to the users and they can set their priorities according to the convenience and abundance. Let us enrich our knowledge by learning about alternative fuels to power: 1. Hydrogen Hydrogen as alternative fuel Hydrogen as alternative fuel Hydrogen is the most abundant element in the universe. It can be produced from fossil fuels and by electrolyzing water. Hydrogen can be used as a fuel in the vehicles without producing any harmful emissions. Hydrogen is non-toxic in nature therefore, engines using hydrogen have longer life and faster pick up. Hydrogen is an eco-friendly fuel that contributes in reducing carbon pollution and serves to save environment. The only problem faced by the researchers while using hydrogen is its high cost of production and storage. Once this problem is solved, hydrogen will become the most utilizable fuel and will eradicate our dependency on petroleum. 2. Electricity Electricity as alternative fuel Electricity as alternative fuel Electric fuel is a source of energy which could be generated from easily available resources like sunlight, wind energy and even bacteria. More and more eco-friendly electric cars are being created these days and all these cars are powered by electric fuels instead of pollution creating petrol or diesel. These battery powered cars produces zero emission creating green and clean transportation system. 3. Biodiesel Biodiesel as alternative fuel Biodiesel as alternative fuel Biodiesel is another renewable fuel that is produced from vegetable oils and animal fats. Biodiesel mixed with petroleum diesel can be used to fuel diesel vehicles. The biodiesel fuel produces negligible emissions, clean burning, and is domestically produced, providing energy security and safety benefits. Engine workability is improved using Biodiesel as it provides adequate lubricity and prevents moving parts of engine from wearing permanently. 4. Solar energy Solar Energy Solar Energy an alternative fuel Solar energy is the most abundant source of energy on earth. It could be harvested in various ways to produce energy that could be used to meet daily energy needs. Basically there are three ways to harvest solar energy. First method uses solar cells known as photovoltaic cells to convert sun light directly into electricity. A square meter of solar panel is capable of generating power to light 100W bulb on a sunny day. Another technique uses solar furnaces. Solar furnaces use large number of mirrors to concentrate solar energy to a small location producing temperature as high as 33,000 degrees Celsius. This energy could be used to create electricity with the help of turbines. Next method uses Solar Towers. These towers are made above green houses which are warmed by sun. Air in the middle of the tower gets heated and moves up quickly. In doing so it generates energy by moving air turbines fitted in the tower. The most remarkable features of solar energy are its clean and pollution free properties, it can be produced in any remote area on the earth and the low maintenance required by the solar energy producing systems. 5. Wind energy Wind Energy Wind Energy alternative fuel Energy generated using wind farms is one of the purest and greenest form of energy. A wind farm consists of large number of individual wind turbines running on wind, producing substantial amount of energy that could be used to meet the rising energy demands. The unused land between the turbines in a wind farm may be used efficiently for agricultural and other similar purposes. Thus no space gets wasted in a wind farm. Globally 2 percent of power production comes from wind turbines with the capacity increasing every year.
Comments Off on How to generate green energy using wind turbines
Ankit Dahiya: Wind Turbine Wind turbine are mainly used to produce electrical energy through kinetic energy of the wind. Wind energy is one of the major sources of producing green energy in the world. Wind turbines are used for generating power from wind energy. These wind turbines actually convert the kinetic energy of the source wind into mechanical energy that in turn is converted into electrical energy using an electrical generator. Made in various sizes, these turbines can be used for various small or large commercial purposes. These turbines which are small sized can be used as a source of production of energy for running basic home appliances. This technology is in use from long period and these days the wind turbines are available in two different types; vertical-axis type in which the blades are made in vertical direction with respect to the ground and the other is horizontal axis type which is made horizontally with respect to ground. But the horizontal axis turbines are more popular than the vertical axis turbine and are widely used for energy production. Production of green energy by using wind turbines The first step for setting up a wind turbine is to find a perfect location. After this step you are almost half done in setting up your wind turbine. This is one of the basic steps as location with high wind would be more appropriate to set up a wind turbine. A technology called Aerodynamic modeling is used to calculate the average optimum tower height, control system to have a control on various devices, total number of blades, and their shapes. The basic components of a conventional wind turbine are; rotor, generator component and the physical structural support component. The rotor component is the rotating part of the wind turbine which rotates when wind is incident on them. This wind causes the movement of rotor which includes blades for the conversion of wind energy into rotational energy. The rotor component of the wind turbine costs approximately 20% of the total turbine cost. Next up is the generator component of the wind turbine that is used for the generation of power. It includes the basic components of a generator like the electrical generator, a gearbox and control electronics system. The gearbox component is primarily used to convert the low speed incoming rotation of the rotor to high speed rotation that is more applicable for power generating. The various gearbox used widely are planetary gearbox and continuously variable transmission. It accounts for 34% of the total wind turbine cost. The third component used for the generation of power through a wind turbine is the physical structural support component that provides a comfortable and strong support to the whole wind turbine tower. This includes the tower and rotor yaw mechanism. It accounts for 15% of the total wind turbine cost. The horizontal-axis turbines, which are widely used, have a rotor shaft and generator at the top of the tower. These two components are pointed toward the wind so that most of the wind energy can be utilized to produce energy. The wind energy incident on the blades of the rotor helps in rotating the blades and in turn it produces energy. The gearbox is used at this time to increase the speed of rotation of blades so that high amount of energy can be produced. The rotor is coupled with generator and when it rotates it converts the mechanical energy of the rotor to electrical energy using an electrical generator. In this way the energy is produced through a wind turbine. In United States the basic height of the wind turbine used is 80 meters that is capable of producing a large 1.5 MW of energy. The components of the wind turbine are actually very heavy and only the weight of rotor assembly weighs around 22,000 kg. While the nacelle that contains the generator component of the wind turbine weighs 52,000 kg and the concrete base weighs almost 26,000 kg. On the whole the wind turbine set up requires a huge budget and heavy devices.
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How to generate green energy using wind turbines
Comments Off on Future Perfect: Using bacteria to enhance biofuel production
Abdul Vahid V: biofuel production from bacteria Using bacteria to enhance biofuel production Whatâ€™s happening right now? No one may be doubtful of the fact that our fossil fuel sources are draining out quickly. According to some estimates, energy sources like coal and natural gases will last only 148 and 61 years respectively. All other traditional energy sources are to deplete in several years. It is high time scientists should find out some consistent methods to produce alternative fuel sources. It is here options like biofuel gain attraction among researchers and specialists. The number of people, who lead researches to explore the possibilities of biofuel, has stepped up over the years. Indeed, we can listen to some hopeful outcomes from the researchers in near future. So far, we have some optimistic information to share with you in development of various biofuel production methods. There is an advanced method of employing bacteria to generate biofuel from different sources. Go through the article to know more about the developments in the area. Trends 1. OPX Biotechnologies produce renewable fuel from the strains of E. coli bacteria based process bacteria based process for producing biofuel A Colorado-based startup firm, OPX Biotechnologies has developed an organism to convert sugar to acrylic acid using strains of E. coli. The biggest benefit of this method is that the process emits less carbon dioxide. OPX showcased its innovative technology in a pilot plant that has a 200-liter fermentation boiler. According to the OPX researchers, the green technology will help reduce gasoline consumption by more than 500,000 barrels a year. 2. Bioengineers boost bacteriaâ€™s potential to produce bio-ethanol Ethanol Biofuel Production from bacteria Biofuel Production from bacteria It is a pioneering method from biofuel researchers to produce ethanol biofuel from bacterial strain. A team of U.S. researchers has developed the technique to modify a strain of bacteria to boost up its potential to generate ethanol. The researchers used Zymomonas mobilis, a bacterium famous for its capability to produce bio-ethanol, to augment bacterial strain to generate more biofuel. The technology has received huge acceptance since it will largely help in the worldâ€™s efforts for alternative fuel options. 3. Bacteria feast on sugars and produce biofuel biofuel production from bacteria Using bacteria to enhance biofuel production Accepting the traditional way to produce biofuel may not cut the danger to the environment anymore. It is here a team of U.S. biologists has developed a process to use genetically-engineered E. coli bacteria to feast on sugars in wood chips and biomass waste. Production of biofuel this way will not raise any threat to the nature. According to the researchers, production cost is also very less in this process. The concept The very attraction behind employing bacteria to enhance biofuel production is that it wonâ€™t add into the greenhouse gases. If we follow the traditional ways to produce biofuel chances are high that it will badly hit our nature and add into the global warming threats. Moreover, production of biofuel from sugarcane or corn will lead to price increase of food items. The new technologies put forward methods to deploy bacteria to produce biofuel from food wastes and residues. The advantages As mentioned above, the biggest advantage of the new technology is that it makes no threat to the nature. In other words, the amount of carbon dioxide emitted from the process is less than 75 percent from the traditional methods. As well, popularity of the method will boost the production of biofuel. Ultimately, it will end up in the less consumption of fossil fuel, which is depleting faster these days. The impact Needless to mention innovative technologies like the production of biofuel from alternative sources is a great help for the human hood as a whole. Exhaustion of conventional fuel sources is a looming threat for human beings, whose life is largely dependent on fuel. New technologies will realize production of more biofuel that can help reduce the effect of global warming and other environmental collapses.
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Future Perfect: Using bacteria to enhance biofuel production
Comments Off on Future Perfect: Affordable hydrogen fuel cells
Rajeev Kumar: Affordable hydrogen fuel cells Affordable hydrogen fuel cells, the future fuel Whatâ€™s happening right now Hydrogen fuels cells are seen as the best alternative to combustion engine-based power generators. However, as the hydrogen doesn’t exist in abundance in its pure form, it has to be obtained from various other organic sources. But, some latest breakthroughs in hydrogen production technologies have made the production of affordable fuel cells possible and countries are taking more interest in the development of new technologies for the easy production of hydrogen gas and its use in the fuel cells. Here are some of the recent trends for the production of affordable hydrogen fuel cells. Trends 1 Eco-friendly car powered by hydrogen fuel cells Hydrogen fuel Powered car Affordable hydrogen fuel cells, the future fuel Named as AAVA , this technological marvel has been designed by Mika Heykinen. The car is powered by hydrogen fuel cells and made up of green materials like glass, wool, recycled plastic, birch veneer and ceramics. It has glass roof and broad windows for bringing in natural lights and to offer a better view of the outside to the users. 2. Hydrogen fuel-cell powered kettle Hydrogen fuel-cell powered kettle Affordable hydrogen fuel cells, the future fuel The futuristic kettle has been designed by Matthew Smith for use in the year 2100. It could be used anywhere without the need of electric wires. The hydrogen cartridges have been fitted in the center and the base of the kettle for converting hydrogen into electricity with the help of fuel cells. 3 BMWâ€™s hydrogen fuel cell hybrid vehicle BMWâ€™s hydrogen fuel cell hybrid vehicle Affordable hydrogen fuel cells, the future fuel Developed by BMW, this hydrogen fuel cell hybrid vehicle has been designed for an emission-free ride on the city roads. The car is powered by a combination of the conventional engine and hydrogen fuel cells. The front wheels of the car are powered by conventional engine, while the rear wheels are powered by fuel cells. Also, both the power units can work together for providing short bursts of acceleration. The concept The hydrogen fuel cell uses hydrogen for producing energy. Like all other batteries, it uses two electrodes, a cathode and an anode separated by a membrane. Hydrogen is passed over one electrode which reacts with a catalyst to produce negative and positive ions. While the negative ions, or electrons, move out of the cell for use as electricity, the positively charged ion (H+) further reacts with the oxygen that is passed over the second electrode and produces water as the bi-product of the entire process. The advantages As compared to the other available batteries in the market, hydrogen fuel cells offer multiple advantages. Such as: 1. Fuel cells reduces our dependency on petroleum products and imported oil for energy. 2. It is one of the cleanest source of energy that produces only water and heat as bi-products. 3. Unlike other batteries, the fuel cells do not die out, as it allows the chemicals to continuously flow. 4. A Hydrogen fuel cell-based car engine is about 80 percent efficient in the use of total energy it consumes. The impact: The use of hydrogen fuel cell could become our best bet for mitigating global warming and rising fuel prices all over the world. A report by the U.S. Department of Energy Hydrogen Program had earlier said that hydrogen fuel cells are two to three times more efficient than other combustion engines. Considering the important role hydrogen fuel cells can play, researchers have sped up the process of developing new technologies for producing hydrogen for the fuel cells. Recently, researchers at the Berkeley University produced a photocatalyst that accelerates light-driven chemical reactions for producing hydrogen with the help of sunlight. However, this source of power is still not much popular and many are still having apprehensions.
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Future Perfect: Affordable hydrogen fuel cells