Showing posts with label advance. Show all posts
Showing posts with label advance. Show all posts

Friday, 1 June 2012

Top 10 Green Movements from Around the World

People all over the world are becoming more and more concerned about the quality of life they follow - as well as the planet they will be leaving behind. Concerns differ from country to country, and strongly depend on the level of development, but despite these differences all across the globe there is a consistent upward trend in the amount of green products, services, and solutions becoming available. No matter the reason, going green is good for the Earth!

Collaborative Corporate and Social Responsibility platform

To keep up with the green trend, producing companies are now tracking the impact their suppliers have on the environment in addition to a wide variety of other statistics. The more responsible the supplier is, the better reputation it can bring to the end-producer.

EcoVadis operates the first collaborative platform that allows companies to assess the environmental and social performance of their suppliers on a global scale. The company supports large, trans-national, and medium-sized companies with simple and reliable scorecards, covering 150 purchasing categories and 21 Corporate Social Responsibility (CSR) criteria. These scorecards help companies reduce the risks of using irresponsible suppliers and also introduces eco-innovation into the supply chain. The existence of such a collaborative platform is a great indication of the increasing concern companies have for responsible products. Check out the platform here!


SixthSense technology

Reducing product waste is a primary concern for many eco supporters. Through improving the quality and quantity of products we produce, many people hope to not only reduce the size of our landfills but also improve our own health and that of our atmosphere.

SixthSense technology is a combination of a projector, camera, and a mobile device that enables you to use almost any surface to make numerous operations: dial a number, edit a presentation, or surf the Internet.  By combining these elements, SixthSense reduces the amount of hardware production costs correlated with it; with this technology you won’t need a big screen and a keyboard to project an image, you only need a non-transparent physical surface. The technology combines several devices: it can be used as a laptop, mobile phone, photo-camera, or projector, thus reducing the amount of resources involved and energy used. This break-through technology was developed in November 2009 by an Indian engineer Pranav Mistr and is currently going through the commercialization process; the product should be available to the general public in the near future through different devices and formats.


Intelligent light switches and systems

In order to affect the energy consumption in the future, it is necessary to build awareness in the present. American designer and engineer Tim Holley came up with a creative way to make children into "energy champions" by creating a ghost-like light switch, called the Tio, which changes its expression and color when too much energy is used.

The Tio gives children a visual reminder of how much energy they use: it starts out green and smiling, after 4 hours it turns yellow and somewhat displeased, and after more than 8 hours it becomes red and disappointed with frown and angry eyes. In addition to its mood, the Tio light switch is connected to a computer game where children can raise a green tree, depending on the energy consumption, while parents participate by tracking scores. Of course, there is a target age group for Tio, but even some adults will be happy to see a smiling green ghost reminding them that they are consuming energy wisely.

For those that feel the Tio is not for them, there are numerous energy-saving options for adults. With the help of the intelligent devices and sensor technologies, lights can be set to turn off and on by time, light sensitivity, motion awareness, and more. For more information, check out Steinel to have a look at the variety of intelligent lighting solutions.


Zero-energy homes

The Energy Information Administration (EIA) shows that buildings are responsible for 48% of greenhouse gas emissions annually and 76% of all electricity generated by U.S. power plants goes to supply the Building Sector Architecture 2030. Estimating these impressive figures, engineers came up with a break-through idea of a zero-energy home. The idea implies that this home will produce as much energy as it will consume. If implemented world-wide, the concept of zero-energy houses can become one of the most significant movements in decreasing energy consumption among the households.

In support of this movement there is already a technology called Passive Housing available to the general public. A passive house is a very well-insulated, virtually air-tight construction that is primarily heated by the external, passive solar energy and by the internal gains from people and even electrical equipment. Smart construction and positioning of the home's windows allows it to maximize heating benefits from the sun and limits cooling, while the recovery ventilator provides a balanced fresh air supply splitting the warm and cool air. One of the pioneers on the North-American market, making this movement available for the average house consumers, is the Canadian company Fab-Homes. Fab-Homes recently introduced its collection of specially designed houses on the base of the Passive House concept.  “The idea is to make the Passive House design more accessible and affordable and present a selection of different shapes offering flexible, ready-to-go design solutions,” says director Alexander Maurer.  


Graduate programs in Eco-Innovation and Sustainability

Any significant movement requires the support of a motivated and educated work force; as the green movement grows, an increasing number of universities and business schools are offering graduate education for individuals who want to create a socially and environmentally sustainable world .

A great indication of their fast development was given by emergence of the World Commission on Environment and Development (WCED) organized by United Nations in mid 1980s, when the concept of sustainable development became widely discussed around the world.  Every year the non-profit organization Net Impact prepares a guide of green oriented programs to help students find a best solution for future development and recruitment; here is the link to their 2011 guide “Business as UN-usual”.

Green zero and solar chargers

With electrical consumption being such a large energy aspect to consider, individuals all over the world are being encouraged to do their part in small amounts. Saving energy by reducing usage is a key factor in many energy-saving campaigns.

To help save energy companies have developed "intelligent"  chargers for your mobile phonesClaiming to be the "most eco-friendly and efficient way to charge mobile devices," Braketron's GreenZero chargers automatically shut off once your device is charged, eliminating stand-by energy consumption. The series supports all main mobile and handled technologies including smartphones, GPS, tablet/PC, MP3, and satellite radio. Officially they are set to appear on the market in the summer 2012.

In addition to green zero chargers, designer Vivien Muller has proposed a new product to the market, Electree - the creative solar energy tree that is capable to charge your mobile device . The tree shape is made of 27 solar panels, installed on the tips of branches, making it an effective way to capture solar rays. After its initial charge for 35 hours ,prior to its first usage, you can start charging your devices through a USB connection.  It can charge your phone and recharge itself in just a few hours.


Car sharing

We are lucky to live in a time where you do not necessarily need to own a car yourself, if you live in or near a city you can easily share a car with the other citizens like you. Car sharing can be found in most large cities in North America and Europe, providing evident benefits for users by eliminating the costs of car ownership.  Broadly used, this concept is a revolution in personal transportation and urban mobility of the 21st century. This approach is not only convenient and attractive to one's wallet, it also very eco-friendly, reducing gas greenhouse emissions and the number of cars on the road.

Car sharing first appeared in Europe in the 1940’s and became more popularized in the early 1990’s; now car sharing operates in over 600 cities across the world sharing more than 11,000 vehicles. Car sharing members typically pay through hourly rates and subscription-access plans, with 24/7 access and real-time vehicle tracking. As more and more car share companies emerge, costs become competitive and even further benefits can be realized by users. In Vancouver alone there are already three car-share companies: Car2goModo, and Zip Car. Car sharing associations also have directories to find out if there is a car sharing service in your region, such as carsharing.org.


Reusable Bags

Reusable bags are one of the most prevalent green products today because they are highly practical, for a variety of purposes, and are fairly inexpensive and easy to produce, purchase, and use. Reusable bags can be found at most grocery and retail stores and are now even being used as take-out bags for restaurants.

The company 1 & Bag at a time even boasts that you can plant your worn out bag in your garden and allow it to decompose! It can even be customized with any design you want.



Eco-friendly fashion

As one of the most popular fabrics in the textile industry, it may be surprising to many people to learn that approximately 25% of all pesticides produced in the world are used to stimulate the growth of cotton. A large amount of these chemicals are retained on the clothes we wear and are often accompanied by un-natural dyes and other artificial elements. As the world begins to demand cleaner, more natural, and healthy products, the fashion industry is slowly introducing eco-friendly fabrics and methods of production.

Most people say their purchase of eco-friendly and socially responsible clothes strongly depends on the price. In order to combat this obstacle the France-based company Veja has developed a new approach in footwear production. A group of talented entrepreneurs decided to provide the best of the best by launching  comfortable, fashionable, and reasonably priced shoes with a label of “responsibility” towards the environment. With organic cotton from Brazil, wild Amazonian rubber, and eco-friendly leather, Veja is inventing new methods of work in terms of ecological inputs, fair-trade practices, and workplace management. Keeping in line with their unique approach, Veja's strongest promotion tool is the word-of-mouth; the company does not spend a penny on the traditional means of advertising and instead chooses to save this money for proper materials and research and development projects.

Watch the making of their Volley here!


Eco-night club

Utilizing a common activity to capture energy is the idea behind most kinetic devices. Products such as exercise bikes, treadmills, sports equipment, and much more have been eco-fitted to incorporated energy harnessing systems, but what if you didn't have to buy anything new to get your energy working for the world?

The first eco-club was opened in London in 2008 where electricity was captured from people dancing at the specially modified dance floor. When compressed by dancers, it produced electricity that would be stored in batteries and used further to cover the electricity burden of a nightclub. In addition to capturing the natural energy of the guest, before entering the club people were asked to sign a pledge promising to work towards curbing climate change. This idea is not only utilize renewable energy but also to inspire youth to be more concerned of global warming and become more eco-friendly in their daily lives. 

References:
http://en.wikipedia.org/wiki/Brundtland_Commission
http://netimpact.org/docs/Business_as_UNusual_2011.pdf
Shaheen, Susan and Cohen, Adam, “Worldwide Car sharing Growth: An International Comparison: http://www.carsharing.net/library/UCD-ITS-RR-06-22.pdf
http://www.architecture2030.org/
http://www.builderonline.com/green-products/seven-green-trends-for-2010_4.aspx
http://www.veja.fr/
http://www.dailymail.co.uk/sciencetech/article-1027362/Britains-eco-nightclub-powered-pounding-feet-opens-doors.html

Wednesday, 4 April 2012

Top 10 Technology Advances in Renewable Energy


Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). Approximately 16% of global final energy consumption comes from renewable sources, with 10% coming from traditional biomass, and 3.4% from hydroelectricity. New renewable sources (small hydro, modern biomass, wind, solar, geothermal, and bio-fuels) accounted for another 3% and are growing very rapidly.

Climate change concerns, coupled with high oil prices, peak oil, and increasing government support, are driving increasing renewable energy legislation, incentives and commercialization. New government spending, regulation and policies helped the industry weather the global financial crisis better than many other sectors. Below is the list of top 10 technological advances made in renewable energy in the last decade-

Solar Energy

When we talk about the renewable sources which have the potential to power the world, wind and sun are the foremost options that strike the mind. To date we have not been able to develop techniques that fully exploit these sources of unlimited energy, however, we have fortunately found some amazing techniques that have changed the expensive and non-efficient face of solar power to something which has the potential for improvement.


June 24, 2009
Paint-on Solar Cells

Thinner solar cells mean that they can be embedded in places where no one ever thought of having them - this is what researchers at the New Jersey Institute of Technology thought when they developed solar cells so thin that they can be painted on flexible plastic sheets, which can then take up the place of your normal glossy paints. These cells are based on the combination of carbon nanotubes and carbon Buckyball molecules to create a series of snake-like patterns which can conduct electricity. Researchers also expect that the technique will be much cheaper than what is being used today.
Learn more about paint-on solar cells here

October, 2008
Spherical Solar Cells

Spherical Silicon Solar Arrays is the brainchild of Japan's Clean Venture 21. The technology is up to five times cheaper, uses up to five times less material, and consumes half the energy to reproduce. With good optical properties these 1 millimeter (mm) silicon cells are put into little reactors, measuring 2.2 to 2.7 mm in width. Since the cells are spherical and not rectangular, the sunlight is absorbed from all possible angles for generating power with better efficiency and flexibility.

Domed rest house with solar power generation system at Toyako Town













Learn more about Spherical Solar Cells here

November 26, 2007 Reflective dishes

The demand of solar energy has increased the demand for silicon, this has made researchers think of alternatives to silicon. A team of researchers at Israel’s Ben Gurion University has found what they are calling a better alternative to silicon. The team has used gallium arsenide instead of silicon in their solar cells, which becomes more efficient when used with reflective dishes. This makes the system expensive than silicon solar panels, but the cost per watt is made comparable to that of a conventional power plant. The team has designed a reflector made of mirrors that collects and intensifies the light a thousand times over. A solar energy system built on 4.6 square miles in the Negev would produce 1,000 megawatts of electricity.

Learn more about Reflective dishes at Sustainabilitank
Wind Energy
Wind energy is among the world’s fastest-growing sources of energy. During the last decade, wind energy growth rates worldwide averaged about 30 percent annually. In the last three years, the U.S. and Texas wind energy markets also have experienced a rapid expansion of capacity. In 2007, for example, U.S. wind power capacity grew by 43 percent, while Texas’ rose by 57 percent.


This growth has been driven by a variety of factors including government subsidies and tax incentives, improved technology, higher fossil fuel prices and investor concerns about potential federal action to reduce carbon emissions, which could make electricity from fossil fuels more expensive. Over the past decade, wind turbine use has increased at more than 25 percent a year. Still, it only provides a small fraction of the world's energy.


April 29, 2009

Leviathan Energy


Leviathan Energy is an ideal way to increase the efficiency of a wind turbine. The best part is that there is no need to increase the size of the turbine. This innovation is developed by Daniel Farb, the CEO of Leviathan Energy. He has named this innovation “Wind Energizer” which is capable of increasing wind energy output by 30 percent. The idea was to modify the environment around the turbine to ensure that highest velocity winds hits the blade rather than increasing the blade size of the turbine. So a donut shape structure was formed in such shape and dimensions such that highest velocity wind hits the blade. The break even for erecting this structure has been estimated to be around four to five years, thus, making it an irresistible deal.

Learn more about Leviathan Energy at leviathanenergyinc.com

Tower Height   


Advance Turbine System (ATS) has come up with an innovative technique to increase the output of a wind turbine by increasing its height. Conventionally people used to increase the blade size to increase the turbine efficiency which soon turned out to be an expensive option with limited availability of space. However, with this technique one can boost the efficiency of the turbine by 20 percent. This is surely a cost-effective method that will continue to offer its benefits for a longer period of time without incurring considerable amount of money.

Learn more about Tower Height at Renewable Energy World

May 18, 2010 

Bladeless Wind Turbine 


A research company in New Hampshire recently patented its bladeless wind turbine, which is based on a patent issued to Nikola Tesla in 1913. This wind turbine is christened as the Fuller Wind Turbine. This turbine is developed by Solar Aero. The specialty of Fuller Wind Turbine is it has only one rotating part, known as the turbine-driveshaft. The entire machinery is assembled inside housing. Wind turbines are often disliked by environmentalists because they kill birds and bats and often generate noise for the residents living nearby.

The wind industry is trying to find a solution to the problem by working with environmental groups, federal regulators, and other interested parties. They are trying to develop methods of measuring and mitigating wind energy’s effect on birds. The Fuller Wind Turbine offers hope to bird lovers and environmentalists.


Fuller Wind Turbine has several advantages over the traditional ones having blades. Fuller Wind Turbine has a screened inlet and outlet. If you try to get a closer look at this wind turbine you can see the only movement visible is as it adjusts to track the wind. This wind turbine can be utilized by the military surveillance and radar installations because there are no moving blades to cause difficulties.


Another plus attached to this wind turbine is that it won’t cost a heaven when you get its power. According to manufacturers this turbine is expected to deliver power at a cost at par with the coal-fired power plants. If you want to probe deeper, its good news that total operating costs over the lifetime of the unit are expected to be about $0.12/kWh.


If we take the maintenance angle it won’t cause much headache because it’s a bladeless turbine. The turbine maintenance requirements are not colossal and it would result in lower lifetime operating costs. The turbine is mainly supported on magnetic bearings. Another advantage is all of the generating equipments are kept at ground level. This will lead towards easy maintenance of equipments. The company comes out with encouraging figures and proclaims “final costs will be about $1.50/watt rated output, or roughly 2/3 the cost of comparable bladed units.”


If we take a look at the Tesla turbine patented in 1913, it operates using the viscous flow of a fluid to move the turbine and as a result generates energy. The Tesla turbine has a set of smooth disks fitted with nozzles that send out a moving gas to the edge of the disk. The gases drag on the disk by following the principle of viscosity and the adhesion of the surface layer of the gas. As the gas slows and adds force to the disks, it twirls in to the center exhaust. Because the rotor has no projections, it is very strong and sturdy. One has to be careful about the disk space because disks in the turbine need to be closely spaced so that they can trap the viscous flow. The Tesla turbine has extremely thin disks to reduce turbulence at the edges and that makes them effective. In 1913, Tesla was unable to find metals of adequate quality to make this work effectively. But now almost a century later, those limitations have been surmounted.

Solar Aero’s current prototype is a modest trailer-mounted unit. But inventor says that their other models “should be capable of 10kW output with no problem.” If this technology takes off smoothly it would remove many hurdles attached with conventional wind turbines and more environment-friendly.

 Learn more about the Bladeless Wind Turbine at Solar Aero and Eco Geek


Biomass Power

July 31, 2008

Green crude


Perhaps one of the most promising innovations in recent years is clean energy derived from algae. The slimy green stuff that collects on surface water is filled with fuel potential: Some kinds of algae are comprised of more than 50% oil and contribute zero emissions to greenhouse gases.
According to the World Watch Institute, an average acre of algae grown today for pharmaceutical industries can produce 5,000 gallons (19,000 liters) of biodiesel each year. In contrast, an average acre of corn produces 420 gallons (1,600 liters) of ethanol per year, and an acre of soybeans yields just 70 gallons (265 liters) of biodiesel per year.

With just water, carbon dioxide and sunlight, algae can quadruple in mass in just one day.

Algae is encouraging not only because it’s quickly renewable, but because it’s carbon-neutral. It’s a living, single-celled organism that performs photosynthesis, so it takes the same amount of carbon out of the atmosphere to create itself as it puts back in when it’s burned. Additionally, it removes nitrogen from wastewater. Algae have an application in water treatment facilities, as well.

The primary U.S Company cultivating this green-colored fuel is Sapphire Energy in San Diego. According to the company, they have created green crude that is identical to the light, sweet crude oil used to manufacture gasoline, jet fuel, diesel, and heating oil.

Another benefit to mass-production of green crude is that it is identical to fossil-based crude. That means it can be used in the existing refining infrastructure. None of the factories and refining facilities currently making oil products out of fossil-based crude will have to replace any of their expensive equipment.

The only thing keeping us from moving forward with “green crude” is the cost of production. Currently, it is still cheaper to drill for crude than to put the proper algae-cultivating infrastructure in place.


Learn more about Green Crude at Sapphire Energy and Treehugger

Biofuels


December 30, 2008

Biofuels (e.g. Jatropha oil, Switchgrass)


Asia Cleantech
When corn and sugarcane first popped up as viable alternative to fuels, hopefulness ensued. But we soon learned that first generation biofuels came with too many setbacks, namely, their interference with food crops and their inability to be cost-competitive with traditional fuels.

Fortunately, second and third generation biofuels are far more promising.
Treehugger
Though almost any crop these days seems fair game as a biofuel material, there are some that are more effective than others. Jatropha oil and switchgrass – both inedible crops – are among them.

The jatropha plant has emerged as one of the best options for airline biofuel because of its resilience and low water needs. In December 2008, Air New Zealand ran a test flight using a blend of kerosene and oil from the jatropha plant. Its success led Air New Zealand to set a goal of using 10% biofuels by 2013.

Today’s biofuels must be sustainable and not compete with food crops for resources, and they must be cost-competitive with fuel oil. Though biofuel made by switchgrass isn’t as energy intensive as algae-based green crude, it is more energy intensive than corn ethanol. In areas where there is plenty of room for these crops to grow, the technology can support the surrounding community.

Because of the vast improvements in utilizing these renewable resources, commercial viability of second and third generation biofuels may be closer than we originally thought.

How close are these technologies to reaching to US consumer market? And which has the most potential to change our energy landscape?
2008 marked the first time that global investment in renewable energy sources surpassed investment in fossil fuel technologies.

According to research firm New Energy Finance, last year’s investment in alternative energy quadrupled the amount in 2004 and topped the record-breaking year of 2007 by 5 percent.

Clearly, this indicates that there is a shift away from expensive oil fossil fuel excavation technology, and toward the vast landscape of renewable energy.

The innovative methods described above – in addition to the old standbys such as wind, solar, nuclear, and geothermal power – are already in existence in pilot programs. It is only a matter of investment and education before the public accepts them as mainstream alternatives to crude oil. Each has its pros and cons, and none may be the panacea for our country’s immense energy needs.

However, a smart combination of renewable energy technologies will perhaps be the best bet in moving forward. For example, power from poultry litter is perfect for any community with a large poultry industry, and green crude will work well where there is already access to algae-rich water.

The future of energy is already here. As we refine these technologies, approach peak oil, and tweak our lifestyle habits, we’ll most likely see wide-scale implementation of renewable energy.

Learn More about Biofuels at Biofuel.org and Ode Wire

Geothermal Power

2006

Enhanced Geothermal System (EGS)


Enhanced Geothermal System
Ten years ago, Marcellus, Barnett and Haynesville were merely considered to be interesting rock formations that contained natural gas in very small pockets.

But that changed when the natural-gas industry successfully commercialized the technique of horizontal drilling and hydraulic fracturing.

This simple process involves drilling a hole down to the shale rock, which contains the natural gas. The drill bit then continues through the rock for as much as several miles. The bit is then withdrawn when the hole is pressurized enough, and the rock is hydraulically fractured. This process releases the gas, which then flows to the surface.

This is what has created boom times for the natural gas industry.

Today, geothermal scientists are experimenting with a modified version of the natural gas technique for geothermal energy - known as an Enhanced Geothermal System (EGS).

Simply put, this technique involves pumping cold water down one well, which the underground rock then heats as the water flows through. The water then returns to the surface via a second well. The rest of the process is the same as conventional geothermal.

So how much power could be generated using this technique?

According to a 2006 report from the
Massachusetts Institute of Technology (MIT) and funded by the U.S. Department of Energy, the amount of EGS resources in the United States could provide 140,000 times the total annual energy use in the country.

Using technology available today, MIT scientists further estimated that the total recoverable power from EGS resources could be as much as 12,200 Gigawatts. That's 15 times higher than the largest peak summertime electrical load in the United States.

Learn more about EGS here

Ocean Tidal Power

Alternative Energy News
Some of the oldest ocean energy technologies use tidal power. All coastal areas consistently experience two high and two low tides over a period of slightly greater than 24 hours. For those tidal differences to be harnessed into electricity, the difference between high and low tides must be at least five meters, or more than 16 feet. There are only about 40 sites on the Earth with tidal ranges of this magnitude.

Currently, there are no tidal power plants in the United States. However, conditions are good for tidal power generation in both the Pacific Northwest and the Atlantic Northeast regions of the country.

Learn more about Tidal Power here


October 11, 2005

Direct Energy Conversion Method


Trident Energy announces breakthrough in sea wave renewable energy technology. Milestone tests at UK’s New and Renewable Energy Centre (NaREC) demonstrate viability of Direct Energy Conversion Method. London: Trident Energy Ltd announced a further major step towards cost effective, flexible and uncomplicated production of energy from sea wave power. Trident Energy Ltd, based in Southend on Sea, Essex, UK, reports that its patented Direct Energy Conversion Method (DECM) has successfully completed testing at the UK’s New and Renewable Energy Centre NaREC) at Blyth, Northumberland. Trident Energy’s technology differs fundamentally from that of all other existing wave energy devices. Rather than using air or hydraulics as part of the conversion train, it converts wave energy directly to electricity through a unique and patented form of low cost linear generator.

Learn more about Direct Energy Conversion Method at Trident Energy



http://www.technologyreview.in/energy/19696/

http://www.cv21.co.jp/en/index.php
http://en.wikipedia.org/wiki/Renewable_energy

http://www.treehugger.com/clean-technology/using-reflective-dishes-to-raise-solar-potential.html

http://cleantechnica.com/2009/04/29/wind-turbine-output-boosted-30-by-breakthrough-design/

http://www.ecofriend.com/entry/technological-advancements-wind-turbines-promising-output/

http://www.alternative-energy-news.info/bladeless-wind-turbine-inspired-by-nikola-tesla/

http://www.tridentenergy.co.uk/pdf/Trident%20Press%20Release.pdf