You may remember how apple has branded itself many times in the past with its clean, green, energy efficient image of long battery lives, smart production, and environmentally-conscious computers. The new macbook pro was advertised with images of green grass, blue skies, and bright sunshine in every Apple store, and they vowed to help recycle old computers. Well... they didn't quite cover all their bases on their green front; it turns out much of this effort was simply Greenwashing.
A report issued today by Greenpeace ranks tech companies by how "green" they are, based on an index that takes into account the kind of energy they use to power their data centers, manufacturing plants, and other facilities. Most of their energy use went into the data centers used to feed though all internet traffic used by Apple and its products, such as iTunes. As it turns out, a whopping two thirds of the energy for these data centers is provided by coal, arguably the dirtiest fuel used worldwide. The cleanest marks went to Google and Yahoo, who have made huge strides in making their data centers and operations more efficient.
We need companies to be smarter about their energy use. When you upload a video to Youtube, do you wanna feel guilty for adding more carbon emissions to the environment? Apple should take Facebook's lead, and disclose the information about their data centers, and start using more renewable energy, such as Solar Power, Wind, and Geothermal, to feed their huge hunger for energy. It's the responsible and smart thing to do, for the company that paints themselves as responsible, user-friendly, and efficient.
Source
Showing posts with label renewable. Show all posts
Showing posts with label renewable. Show all posts
Saturday, April 23, 2011
It Turns out Apple isn't so Green After All...
Labels:
apple,
computers,
data centers,
energy,
environment,
facebook,
renewable
Saturday, April 16, 2011
Solar Magnets: How do they Work?
Time for a short post on a new breakthrough to brighten up your Saturday morning: Today I'm talking about magnets!
Most modern solar power systems use sunlight to trigger electrical reactions within semiconductors, also known as a photovoltaic reaction, which in turn produces electricity. These systems are often cost-heavy as many of the materials require high-precision manufacturing with semi-rare minerals such as Cadmium Telluride and Copper Indium alloys. These drive up the costs of solar panels to hundreds of dollars per square meter, or upwards of $5-10,000 for a household installation. These are prohibitive costs to investors, as a gallon of gas still costs about $3.75, and the same goes for the equivalent amount of natural gas. However, a recent breakthrough in physics is pointing researchers towards a new form of energy that can be harnessed from the sun: Magnetism.
I'm not saying we use magnets to harness the sun, and as the oft-quoted Insane Clown Posse cavalierly states in one of their songs, many people don't understand how magnets work, but all you need to know is that when sunlight hits the Earth's surface, it produces a weak magnetic field, much like the pull of a weak magnet thats meant for your kitchen refrigerator. For years, scientists have ignored the magnetic field within sunlight for it was too weak. However, recently, a team of physicists have discovered that focusing the sunlight to 10 million times its normal strength produces a massive amount of energy in the magnetic field that can be turned into electricity. It seems like a tall order, but it can be accomplished using inexpensive glass lenses and fiber optic wires that can focus light into intense beams of energy. What this means for the future is that solar power plants no longer need massive fields of blue panels, but may only need a bunch of lenses focusing light into high-capacity fiber optic cables to be harnessed as energy using magnetism. Its complicated, very scientific, but may herald an era of cheap solar power in the decades to come.
Labels:
energy,
inventions,
magnetism,
renewable,
solar,
solar power
Saturday, April 9, 2011
GE is Taking the Lead in Solar
Once again, its good to see a big corporation take a stand in the world of alternative energy. I just found out today that GE, along with PrimeStar, has developed the world's most efficient thin-film photovoltaic solar panel. at almost 12% efficiency, it takes almost a 2% leap over previous thin-film arrays, and can boost energy savings by up to 20%. This is big news, considering the money going into this operation is astronomical. GE has decided to invest $600 million in a brand new solar facility that can produce enough solar panels to power 80,000 more homes every year, or roughly 400Megawatts. On top of this, they are filling orders for another 100Megawatts. This is huge news for solar power, which as I've written on my blog before is in my opinion the true green energy of the future. Below is an image of a thin-film solar array. In my opinion, they are more aesthetically pleasing and economical than standard solar arrays.
I believe that we can invent solar panels that may one day power an entire house off a single panel and power cities off of a single square mile of panels. The power is there, its bountiful, and we almost have a solid grasp on it. One day we won't have to peer up at buzzing wiggling high tension towers stretching across the landscape, or watch worriedly as we blast apart mountains for coal and pollute the rivers and ecosystems, such as we are doing now at increasingly destructive rates. I may be a green liberal, but I still have faith in our capitalist system to switch our demands to that of green energy and sustainable infrastructure. It's up to us as consumers to move forward with the transition to renewable energy
Source
I believe that we can invent solar panels that may one day power an entire house off a single panel and power cities off of a single square mile of panels. The power is there, its bountiful, and we almost have a solid grasp on it. One day we won't have to peer up at buzzing wiggling high tension towers stretching across the landscape, or watch worriedly as we blast apart mountains for coal and pollute the rivers and ecosystems, such as we are doing now at increasingly destructive rates. I may be a green liberal, but I still have faith in our capitalist system to switch our demands to that of green energy and sustainable infrastructure. It's up to us as consumers to move forward with the transition to renewable energy
Source
Labels:
corporations,
energy,
GE,
green,
inventions,
renewable,
solar
Thursday, March 31, 2011
Wind Energy may be Losing Steam
Recently, two wind farms have been halted in Wisconsin, a state that has been in the spotlight for the past couple months thanks to a raging inferno of union protests and backhanded politics. Away from the petty politics however is an issue about Wind Energy. Two farms to be built by Midwest Wind have been put on hold due to an unstable political and regulatory atmosphere. Apparently, the laws regarding placement of wind turbines near private property are seen as "too lax" by lawmakers, who claim that placing wind turbines near houses lowers property value. This flies in the face of recent findings that wind farms as a whole do not lower home values, no matter how close they are to development. Additionally, republican lawmakers are making the bunk argument that wind turbines cause unpleasant noise and are an eyesore, despite no real evidence of raised noise levels outside of the wind farm properties themselves. All of the evidence against wind farms are purely anecdotal, but the fighting about whether or not wind turbines may not even matter.
The thing is, Wind power is ephemeral. When the wind blows, power is generated. When it stops, that power goes away. Without adequate power storage, the total energy available for the electric grid drops, and if too many houses rely on wind energy, rolling blackouts can occur. Wisconsin is a continental state, far from any open ocean where the wind blows almost constantly. In the Netherlands, a never-ending wind off the north sea provides bountiful power to residents, but in the central US, its hard to find locations that can benefit from wind power. Many farms are being proposed simply as business ventures, buying into green and renewable energy sources. I think that we should give wind power a backseat though. Solar power is dramatically increasing in its technological capabilities. While wind power has been around for centuries, solar is really just starting to take off. With new polymers and materials able to collect and harness more of the Sun's energy, we can gain more power from less space, and have a reliable source of renewable, perfectly clean, and stable energy. With the promise of new technology, I believe we could accept wind power as an alternative, but only where it is highly reliable, such as coastal areas, while the big expanses of the midwest and western U.S. could benefit from large-scale solar farms using newly developed photovoltaic materials. New inventions in solar power are raising money, and fast, and providing an open market for new innovation. Long story short: Solar Power is the Future.
The thing is, Wind power is ephemeral. When the wind blows, power is generated. When it stops, that power goes away. Without adequate power storage, the total energy available for the electric grid drops, and if too many houses rely on wind energy, rolling blackouts can occur. Wisconsin is a continental state, far from any open ocean where the wind blows almost constantly. In the Netherlands, a never-ending wind off the north sea provides bountiful power to residents, but in the central US, its hard to find locations that can benefit from wind power. Many farms are being proposed simply as business ventures, buying into green and renewable energy sources. I think that we should give wind power a backseat though. Solar power is dramatically increasing in its technological capabilities. While wind power has been around for centuries, solar is really just starting to take off. With new polymers and materials able to collect and harness more of the Sun's energy, we can gain more power from less space, and have a reliable source of renewable, perfectly clean, and stable energy. With the promise of new technology, I believe we could accept wind power as an alternative, but only where it is highly reliable, such as coastal areas, while the big expanses of the midwest and western U.S. could benefit from large-scale solar farms using newly developed photovoltaic materials. New inventions in solar power are raising money, and fast, and providing an open market for new innovation. Long story short: Solar Power is the Future.
Labels:
energy,
inventions,
politics,
renewable,
solar,
solar power,
wind energy
Monday, March 28, 2011
Fake Leaves, Real Energy
This is just exciting: Scientists led by a physicist at MIT have created an artificial leaf that converts sunlight into hydrogen and oxygen to be used for electric power.
http://www.gizmag.com/worlds-first-practical-artificial-leaf/18247/
While it doesn't in any way LOOK like a leaf, it performs the same basic functions, and can be produced cost-effectively to be applied in developing countries to power households. At first i thought it was a way to create photosynthetic cellulose in a laboratory, but this is even better. Thanks to funding from Obama's Recovery Act, they have been able to produce a stable artificial leaf using silicon and cobalt catalysts that can be placed in a jug of water and in direct sunlight to provide electricity. Its a high-tech device with low-tech implementation, making it ideal for aiding those without power. One more reason to love science every day.
Heres a brief video explaining the technology
http://www.gizmag.com/worlds-first-practical-artificial-leaf/18247/
While it doesn't in any way LOOK like a leaf, it performs the same basic functions, and can be produced cost-effectively to be applied in developing countries to power households. At first i thought it was a way to create photosynthetic cellulose in a laboratory, but this is even better. Thanks to funding from Obama's Recovery Act, they have been able to produce a stable artificial leaf using silicon and cobalt catalysts that can be placed in a jug of water and in direct sunlight to provide electricity. Its a high-tech device with low-tech implementation, making it ideal for aiding those without power. One more reason to love science every day.
Heres a brief video explaining the technology
Labels:
development,
energy efficiency,
green,
inventions,
politics,
renewable,
solar
Sunday, March 27, 2011
The End of Nuclear Power?
I really hope that those in charge of our energy supply make the right decision, and STAY with nuclear power. Ever since the catastrophe at the Fukishima-Dai Ichi plant in Japan, the main focus of news coverage has been how dangerous nuclear power can be. However, I think we should look at this differently. This plant has 6 very large nuclear reactors, housed in a facility that is over 40 years old, on the coast with little protection, and has withstood a THIRTY FOOT tsunami that has knocked out all 3 backup power supplies. Even through all of this, nobody has died from radiation sickness, and the highest levels of radiation measured outside the evacuated zone has been minor fractions below the federal limit for caution, let alone danger. Think about it this way: if you had a Coal Power Plant hit by such a force of water, you would wash thousands of tons of coal, tillings, and hazardous chemicals into the water supply, causing untold amounts of sickness and environmental damage. The same goes for Oil. Its almost as if we've forgotten about the Deepwater Horizon spill last year: a loose security door caused a massive explosion and the release of over a hundred million gallons of oil, covering beaches and leaving behind environmental damage that still hasn't been fully accounted for. I think we should do the right thing and choose the safer option for energy, one that emits zero greenhouse gases, provides cheap and long-lasting energy, and becomes safer every day with research.
http://online.wsj.com/article/SB10001424052748703576204576226524171107988.html?mod=googlenews_wsj
http://online.wsj.com/article/SB10001424052748703576204576226524171107988.html?mod=googlenews_wsj
Labels:
energy,
environment,
global warming,
news,
nuclear power,
renewable,
research