Solar panels capture energy from light and convert it to electricity. This is the most visible form of energy harvesting, but it is hardly the only one. Energy harvesting captures energy lost as heat, light, sound, vibration, or movement. Devices that harvest or scavenge energy can capture, accumulate, store, condition, and manage this energy into electricity for consumption. That’s important, because our existing electricity infrastructure is extremely wasteful in its use of energy. For instance, today’s technologies used in electricity generation are not energy efficient. Traditional gas or steam-powered turbines convert heat to mechanical energy, which is then converted to electricity. Up to two thirds of that energy input is lost as heat. Those old incandescent bulbs (technology invented by Thomas Edison in 1879) were real energy losers too. Ninety percent of the electricity flowing into incandescent bulbs ends up as waste heat. That’s lost energy, which is why smart federal legislation banned incandescents in favor of more energy efficient sources of lighting starting in 2012.
Innovative DC Power Solutions - 3 views
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The micro inverters are used in the solar industry where you can easily install the components much better than the central inverters
Future Of Solar Energy - 3 views
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With the increase in the cost of the fuel charges nowadays people adapt to use the solar technology in which the energy is generated through the sunlight.
DC Fluorescent Lamp Electronic Ballast - 1 views
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Check out the compact, durable and low power DC electronic fluorescent lamp ballast....
Use Lithium-ion battery storage to stabilize the power grid - 3 views
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For many, using lithium-ion batteries to store energy has proven to be too expensive to be worth-while. This happens to not be the case for Chris Shelton of AES Energy Storage.
Read about Renewable Energy Development in Tumblr - 2 views
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The future energy development is looking for the renewable energy generation from various sources..
Energy Efficient Power Systems Using DC Microgrids - 0 views
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Know about the energy efficient power system methods from Nextek Power Systems Inc.,
Benefits Of Using Renewable Energy Sources - 1 views
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Since the fuel costs are increasing a lot so there comes the different forms of energy to avoid pollution and increase the green house gas effect.
BTU Meters, BTU Meter Manufacturers, BTU Meter for Chiller Application - 0 views
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BTU Meters, BTU Meter Manufacturers, BTU Meter for Chiller Application, BTU Meter for Heat Transfer Application by manas micro, pune, india.
Teenager Designs Safer Nuclear Power Plants - Yahoo! News - 3 views
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Very interesting presentation at the TED Conference. Not quite a nuclear battery, but a really good redesign of nuclear power systems. excerpt: "Instead of finding a new way to boil water, Wilson's compact, molten salt reactor found a way to heat up gas. That is, really heat it up. Wilson's fission reactor operates at 600 to 700 degrees Celsius. And because the laws of thermodynamics say that high temperatures lead to high efficiencies, this reactor is 45 to 50 percent efficient. Traditional steam turbine systems are only 30 to 35 percent efficient because their reactors run at low temperatures of about 200 to 300 degrees Celsius. And Wilson's reactor isn't just hot, it's also powerful. Despite its small size, the reactor generates between 50 and 100 megawatts of electricity, which is enough to power anywhere from 25,000 to 100,000 homes, according to Wilson. Another innovative component of Wilson's take on nuclear fission is its source of fuel. The molten salt reactor runs off of "down-blended weapons pits." In other words, all the highly enriched uranium and weapons-grade plutonium collecting dust since the Cold War could be put to use for peaceful purposes. And unlike traditional nuclear power plants, Wilson's miniature power plants would be buried below ground, making them a boon for security advocates. According to Wilson, his reactor only needs to be refueled every 30 years, compared to the 18-month fuel cycle of most power plants. This means they can be sealed up underground for a long time, decreasing the risk of proliferation. Wilson's reactor is also less prone to proliferation because it doesn't operate at high pressure like today's pressurized-water reactors or use ceramic control rods, which release hydrogen when heated and lead to explosions during nuclear power plant accidents, like the one at Fukushima in 2011. In the event of an accident in one of Wilson's reactors, the fuel from the core would drain into a "sub-critical" setting- or tank-
An Important, and Sometimes Overlooked, Energy Efficiency Tool | Energy Economics Exchange - 1 views
Energy Harvesting the Next Big Thing for the Smart Grid | The Energy Collective - 0 views
Clever MIT floating wind turbines can store power for when the wind doesn't blow : Tree... - 0 views
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A single 25-meter sphere at a depth of 400 meters could store up to 6 megawatt-hours of power, so a large offshore wind farm with hundreds or even thousands of those could become a giant on-demand battery, potentially producing as much power as large power plants (it all depends on how far you scale up the idea). These anchor/storage spheres could be built on land and then brought out to sea. No need for too much super-expensive deep sea construction.Preliminary estimates indicate that one such sphere could be built and deployed at a cost of about $12 million, Hodder says, with costs gradually coming down with experience. This could yield an estimated storage cost of about 6 cents per kilowatt-hour — a level considered viable by the utility industry.
Battery Could Provide a Cheap Way to Store Solar Power | THE GREEN ENERGY BLOG - 0 views
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There’s a promising new entry in the race to build cheap batteries for storing energy from solar panels and wind turbines. Stanford researchers led by Yi Cui, a professor of materials science and engineering, have demonstrated a partially liquid battery made of inexpensive lithium and sulfur. Cui says the battery will be easy to make and will last for thousands of charging cycles. Cui believes that the material and manufacturing costs of the battery might be low enough to meet the Department of Energy’s goal of $100 per kilowatt-hour of storage capacity, which the DOE estimates will make the technology economically attractive to utilities. Existing batteries can cost hundreds of dollars per kilowatt-hour of capacity, although several companies are working to commercialize cheaper ones (see “Ambri’s Better Battery” and “Battery to Take On Diesel and Natural Gas”).
GE Adds Energy Storage to Its Brilliant Wind Energy Turbine - 0 views
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After premiering its 2.5-megawatt, 120-meter rotor Brilliant wind turbine in February, GE is now announcing the commercial installation of the first three models that will integrate energy storage capability.
Was Edison Right After All? Reconsidering DC Power - 1 views
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Perhaps Thomas Edison was right after all. As new technology develops, it's time to ask the question: should be using direct current (DC) instead of alternating current (AC) power?
Germany on the Verge of a Subsidy for Energy Storage - 1 views
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The energy storage system is meant to be used in tandem with distributed solar installations with storage systems developed in Germany; the funds come with a maximum size requirement of 30 kilowatts. The batteries must have a warranty of at least seven years to gain the subsidy. Another requirement is that the PV installation sends 60 percent of its capacity to the grid over the lifetime of the plant. The battery subsidies will apply retroactively when connected to solar systems installed in 2013, according to reports in PV Magazine.
U.S. Government Asks for Sustainability Reports from Contractors - 0 views
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Did you know that if you are federal contractor and are on the General Services Administration, or GSA, schedule, you will be asked to report on your sustainability efforts?” That’s the question posed by Anca Novacovici, founder and president of Eco-Coach, an environmental sustainability consulting business, in a recent Huffington Post blog. Not surprisingly for a post titled “Federal Contractors Missing the Boat,” her answer is in the negative. She writes, “Many contractors are unaware of the federal reporting requests around sustainability.”
A Better Way to Make Fuel from Solar Energy | MIT Technology Review - 1 views
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Burning natural gas emits about half as much carbon dioxide as burning coal, but it still produces large amounts of the greenhouse gas in the atmosphere. A novel device being developed at the Pacific Northwest National Laboratory (PNNL) could reduce those emissions by 20 percent by using heat from the sun to convert natural gas to an alternative fuel called syngas, a lower carbon fuel.
"I appreciated the initiative of introducing a new standard" | Solarthermalworld - 0 views
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