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Energy Net

Vast northeast China to benefit from wind power - 0 views

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    "In the remote county of Tongyu in northeast China's Jilin Province, 14-year-old Li Ruixue has more memories about sandstorms rather than colorful flowers and clean rivers, due to the howling winds that sweep the area from spring to winter every year. Sand-filled winds from Horqin often leaves local farmers' land barren and the United Nations Educational, Scientific and Cultural Organization (UNESCO) has described the county as being one of the areas of the world most unfit for human living. But the Chinese government's new strategy to find more renewable energy might provide one of the country's poorest counties with the opportunity to improve its way of life. The reason for hope is a wind farm with a combined installed capacity of 1.9 million Kilowatt that will soon be completed in the county."
Colin Bennett

Efficiency key to making Denmark fossil fuel-free by 2050, says report - 0 views

  • In this ‘green’ future, electricity will comprise 40-70% of energy consumption, up from around 20% now. And a large part of this electricity will come from offshore wind farms, which the report highlights as an economically viable option for Denmark.The Klimakomissionen says many more turbines will have to be erected to cover up to half of the country’s energy consumption.Meanwhile, the energy system will have to become much more flexible and intelligent to cope with the fluctuation of wind energy.Technologies such as smart electricity meters, time-controlled recharging for electric cars and heat pumps in combination with heat storage systems will be crucial to the new energy order.The report says that biomass will play an important role as back up to wind power and to supply heating for homes, along with solar heating, geothermal energy and heat pumps, which will serve district heating systems.
Hans De Keulenaer

Barack Obama and Joe Biden: The Change We Need | New Energy for America - 0 views

  • The Obama-Biden comprehensive New Energy for America plan will: Watch the Video Provide short-term relief to American families facing pain at the pump Help create five million new jobs by strategically investing $150 billion over the next ten years to catalyze private efforts to build a clean energy future. Within 10 years save more oil than we currently import from the Middle East and Venezuela combined. Put 1 million Plug-In Hybrid cars -- cars that can get up to 150 miles per gallon -- on the road by 2015, cars that we will work to make sure are built here in America. Ensure 10 percent of our electricity comes from renewable sources by 2012, and 25 percent by 2025. Implement an economy-wide cap-and-trade program to reduce greenhouse gas emissions 80 percent by 2050.
Energy Net

Green: Danish Isle Runs Completely on Renewable Energy, Is Greenest Guinea Pig Ever - 0 views

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    In this week's New Yorker, Elizabeth Kolbert wrote about the Danish isle of Samsø, which over the past 10 years, has gone from exclusively using fossil fuel energy sources, to living exclusively off renewable energy. Using a combination of onshore and offshore turbines, private mini-turbines, solar panels, straw-burning furnaces and biofuels, the 4,300-resident island has become a sort of a sandbox for green experimentation.
Hans De Keulenaer

Wayback Machine: Bouncing Buoy Wave Generators- 1932 version : TreeHugger - 0 views

  • Proving once again that there is little new under the sun (or the waves) is this 1932 version of the wave power generators that we showed here and here. It works on the basis of an "inertia motor" where "When a wave starts to lift the hollow sphere, the massive weight inside, because of its inertia, resists the movement and exerts terrific pressure in the lower cylinder. Finally the inertia of the weight is overcome. Then it possesses momentum. When the sphere reaches the crest of a wave, the combined effort of the momentum and the recoil of the huge, semi-elliptic springs exerts an equal pressure in the upper cylinder. The tremendous pressure is applied to oil, which, in turn, operates a special turbine which runs a generator. The current is conducted to the shore by submarine cable."
Energy Net

Solar Thermal Power Coming to a Boil | celsias° - 0 views

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    After emerging in 2006 from 15 years of hibernation, the solar thermal power industry experienced a surge in 2007, with 100 megawatts of new capacity coming online worldwide. During the 1990s, cheap fossil fuels, combined with a loss of state and federal incentives, put a damper on solar thermal power development. However, recent increases in energy prices, escalating concerns about global climate change, and fresh economic incentives are renewing interest in this technology.
Hans De Keulenaer

Austinist: Texas: A Leader In Renewable Energy? - 0 views

  • PUC Commissioner Paul Hudson boasted that this new initiative would have Texas—already the leader when it comes to most megawatts produced—generating more than the 14 next-highest states combined.
Energy Net

Peak Energy: Solar in the Sahara 'could power the whole of Europe' - 0 views

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    The Times has a story in the "deserts of gold" genre, confusing solar PV (panels) with concentrating solar thermal power - Solar panels in the Sahara 'could power the whole of Europe'. There is a new twist to the story now though, with North Africa's wind power potential also being touted. All of Europe's energy needs could be supplied by building an array of solar panels in the Sahara, the climate change conference has been told. Technological advances combined with falling costs have made it realistic to consider North Africa as Europe's main source of imported energy. By harnessing the power of the Sun, possibly in tandem with wind farms along the North African coastline, Europe could easily meet its 2020 target of generating at least 20 per cent of its energy from renewable sources.
Hans De Keulenaer

CRESTdl - home page - 0 views

  • The Centre for Renewable Energy Systems Technology offers flexible and distance learning for study at home or in your workplace in low carbon sustainable energy. These courses enable you to participate without taking time away from work to attend a residential course, and save on the costs of traveling to and living at the University. But, for maximum flexibility, it is also possible to combine your home or work-based learning with one or more of our residential modules at Loughborough.
Hans De Keulenaer

World Energy Discussion: US Electricity Market Liberalisation - 0 views

  • These groups have spent a combined $50 million lobbying lawmakers, probably more, according to their own reports to Congress.
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    Investing into lobbying for liberalisation might well be the highest return opportunity for some utilities.
Glycon Garcia

ENN: Rising Sun for Electric Cars - 0 views

shared by Glycon Garcia on 05 May 08 - Cached
  • At Southern New Hampshire University (SNHU), as a complement to our work on renewable energy hedges, we are working to transform energy use on campus. One project underway is a system of grid-tied electric vehicles (Vehicle to Grid or V2G) combined with a solar photovoltaic charging system and smart computer control.
Hans De Keulenaer

Study finds that linked wind farms can result in reliable power - 0 views

  • Wind power, long considered to be as fickle as wind itself, can be groomed to become a steady, dependable source of electricity and delivered at a lower cost than at present, according to scientists at Stanford University. The key is connecting wind farms throughout a given geographic area with transmission lines, thus combining the electric outputs of the farms into one powerful energy source. The findings are published in the November issue of the American Meteorological Society's Journal of Applied Meteorology and Climatology.
Colin Bennett

The Oil Drum | The European Gas Market - 0 views

shared by Colin Bennett on 11 Dec 07 - Cached
  • OECD European gas production looks set to peak in 2008. After that, falling production combined with rising demand will see OECD European gas imports wanting to rise from current 197 BCM per annum to 442 BCM per annum by 2020. Where will this gas come from and how will rising European imports affect N America and the rest of the world?
Hans De Keulenaer

IEEE Spectrum: Synthetic Fuel From a Solar Collector - 0 views

  • 7 January 2008—At first blush, you might lump claims about a machine that supposedly turns sunshine, air, and water into fuel in the same category as e-mails insisting that someone in Nigeria will pay you handsomely to help free up a large sum of money. But researchers at the U.S. Department of Energy’s Sandia National Laboratories, in Albuquerque, say they have created a device that can break water into hydrogen and oxygen using sunlight, or in a another reaction convert carbon dioxide, to carbon monoxide that combines with hydrogen to make hydrocarbons such as methanol, ethanol, and even gasoline or diesel fuel. The technology holds the promise of using the same resources as biomass-to-fuel schemes but with potentially greater efficiency, according to the researchers.
Colin Bennett

Hybrid Gets 150 Miles Per Gallon Using Ultracapacitors : MetaEfficient - 0 views

  • It’s a prototype hybrid car that gets 150MPG, and goes 40 miles on electricity alone, drawing its power from a combination of lithium-ion batteries and ultracapacitors. The ultracapacitors provide a burst of energy to the engine, when needed. They are then recharged by the lithium-ion batteries. This avoids the problem of emptying the batteries too fast, which can cause them to heat up, and possibly catch on fire.
Hans De Keulenaer

Ecological Economics: Exclusively Renewable Energy by 2050: Germany Says Yes! - 0 views

  • Germany is looking to integrate wind, solar, and biofuel natural gas to supply 100% of its power generation needs by 2050 (40% by 2020). Germany plans to phase out both Nuclear and Coal-fired power generation.
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    The problem is at least recognised, instead of declaring it a myth. But the video remains a concept. The numbers are not worked out, nor the economics. And while variability can be reduced by combining different renewables, nobody knows whether we will get it right 95, 99 or the current 99.9% of the time. 30 minutes of outage per year does not leave much margin for error.
davidchapman

Technology Review: A Cheaper Battery for Hybrid Cars - 0 views

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    The future market for hybrid-electric vehicles, at least those that are affordable, isn't necessarily paved with lithium. Researchers in Australia have created what could be called a lead-acid battery on steroids, capable of performing as well as the nickel-metal hydride systems found in most hybrid cars but at a fraction of the cost. The so-called UltraBattery combines 150-year-old lead-acid technology with supercapacitors, electronic devices that can quickly absorb and release large bursts of energy over millions of cycles without significant degradation. As a result, the new battery lasts at least four times longer than conventional lead-acid batteries, and its creators say that it can be manufactured at one-quarter the cost of existing hybrid-electric battery packs.
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    Sunset technologies tend to be resilient against reports on their demise. But eventually, they have to go - cf carburators, word processors, ... But some of us have a chance to retire before the lead-acid battery does.
Colin Bennett

UltraBattery Sets New Standard For Hybrid Electric Vehicles - 0 views

  • ScienceDaily (Jan. 18, 2008) — The odometer of a low emission hybrid electric test vehicle recently reached 100,000 miles as the car circled a track in the UK using the power of an advanced CSIRO battery system. The UltraBattery combines a supercapacitor and a lead acid battery in a single unit, creating a hybrid car battery that lasts longer, costs less and is more powerful than current technologies used in hybrid electric vehicles (HEVs).
Sergio Ferreira

3E Intelligence : 23% of Chinese CO2 emissions are our responsibility - 0 views

  • 23% of China’s CO2 emissions in 2004 were due to demand from the West for manufacturing products made in the new economic giant. This 23% is as much as the combined emissions from Germany and Australia and more than twice the national emissions of the UK.
Hans De Keulenaer

IEEE Spectrum: Can plug-in hybrid electric vehicles keep the electric grid stable? - 0 views

  • After safety, the longevity of the batteries in a plug-in hybrid is the greatest unknown. Can a plug-in hybrid’s battery pack retain the bulk of its energy capacity over 10 years of daily use and more than 4000 full-discharge cycles? (For a deeper look at the challenges facing plug-in hybrid batteries, see “Lithium Batteries Take to the Road”.)[ LINK: http://www.spectrum.ieee.org/sep07/5490 ] As Don Hillebrand of Argonne National Laboratory, in Illinois, said tartly, “Batteries are the showstopper.” Periodic demands from the grid, even for only a small fraction of the battery’s stored energy, would clearly affect the cells’ life span—but no one has data on how much. Another open issue is the development of creative financing models for replacement battery packs costing several thousand U.S. dollars even after mass production is achieved. Third-party battery leasing could be one answer, if combined with a secondary market for batteries whose performance has fallen below automotive levels. Carmakers, electric utilities, and large consumer-financing groups are quietly batting around these notions to see if they can build a financial model that makes sense for all three parties.
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