
	Where results make sense

Topic: Power grid

Related Topics

Electric power transmission

Electricity meter

Electricity distribution

Electricity market

Electrical engineering

Electricity

Nuclear power

Ferranti

Nuclear power plant

Nuclear reactor

Schumann resonance

Hurricane Charley

Soviet Union

In the News (Mon 16 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Grid computing - Wikipedia, the free encyclopedia
		Grid computing offers a model for solving massive computational problems by making use of the unused resources (CPU cycles and/or disk storage) of large numbers of disparate, often desktop, computers treated as a virtual cluster embedded in a distributed telecommunications infrastructure.
		Grid computing involves sharing heterogeneous resources (based on different platforms, hardware/software architectures, and computer languages), located in different places belonging to different administrative domains over a network using open standards.
		Grid computing is also attractive to large commercial enterprises with complex computation problems who aim to fully exploit their internal computing power: internal grids.
	en.wikipedia.org /wiki/Grid_computing (2086 words)

	Electrical power grid - Wikipedia, the free encyclopedia
		Electrical power is generated in many locations and created by various technologies in the form of alternating current.
		When the power is needed, the various suppliers or utilities may have more or less than they need.
		The individual supplier distribution systems are interconncected into an electrical power grid so that power can be bought and resold by the participating utilities to meet the demands of their customers.
	en.wikipedia.org /wiki/Electrical_power_grid (115 words)

	frontline: cyber war!: vulnerabilities: the power grid? \| PBS
		We've worked really closely with them and the power grids are very redundant across the United States, to include Canada, such that the ability to do that nationally or even regionally is really hard to do based upon the work that we've done in the industry.
		The way the power system works today is that if a piece of our power grid goes down, you use the neighboring power grids to provide enough power in order to bring the generators back up again.
		So, if you bring down the entire power grid simultaneously, you're going to have to bootstrap the entire system, from the smallest generators get enough power somewhere working to boot the next piece of the power grid, which can be used to then get the next piece of the power grid back up again.
	www.pbs.org /wgbh/pages/frontline/shows/cyberwar/vulnerable/grid.html (2589 words)

	Electrical Power Grid
		The grid normally operates with a strategically safe 20-30% surplus; this means that a deficit of more than 20-30% could cause the system to be stressed to the point of overload, and could pull the rest of the grid down with it.
		Like the regional power outage of the Northeast in the 1965, and the recent outage of the Northwest, (caused by faulty transmission lines in Oregon..or was it Idaho?) power failures occur in a cascading manner.
		Futher complicating the reliability of the power grid is the peak in geo-magnetic activity which will accompany the year 2000 solar sunspot peak, which could cause large scale flouts.
	www.angelfire.com /or/truthfinder/powernews.html (2401 words)

	Billing World and OSS Today Magazine - The Power of Grid: Maximizing Efficiency (Site not responding. Last check: 2007-11-07)
		The power of grid computing comes with its ability to understand all of the resources required for applications to run and its ability to schedule work according to what is available at any given time.
		It will have to be the carrier that pays for the grid middleware and the ISVs who incur the costs to make their applications support grid computing, as carriers will need to ensure that their business cases for buying ISV products take into account full costs, including the percentage of the grid they will utilize.
		While he concedes that grid is a technological innovation, he maintains that there is a need for telcos to understand the full “in-life” costs of grid investments, so that the real cost upside of such investments can be judged.
	www.billingworld.com /archive-detail.cfm?archiveId=7594&hl (2407 words)

	Articles - Power outage (Site not responding. Last check: 2007-11-07)
		The reasons for a power failure can for instance be a defect in a power station, damage to a power line or other part of the distribution system, a short circuit, or the overloading of electricity mains.
		Power failures are particularly damaging for hospitals, since many life-critical medical devices and tasks require power.
		In the absence of grid power, a so-called fl start needs to be performed to bootstrap the power grid into operation.
	www.deluxez.com /articles/Power_failure (712 words)

	CBS News \| How Power Grid System Works \| August 15, 2003 13:19:38
		Power from these stations is moved around the country on almost a half-million miles of bulk transmission lines that carry high voltage charges of electricity.
		Once large sections of a grid are shut down, it may be difficult or impossible to restore power from neighboring grids.
		When power is restored, it can cause a sudden surge in demand that the system may not be able to accommodate.
	www.cbsnews.com /stories/2003/08/14/national/main568370.shtml (407 words)

	NASA Information Power Grid (IPG) (Site not responding. Last check: 2007-11-07)
		NASA's Information Power Grid (IPG) is a high-performance computing and data grid.
		Grid users can access widely distributed heterogeneous resources from any location, with IPG middleware adding security, uniformity, and control.
		Computing and data Grids are emerging as the infrastructure for 21st century science because they are providing a common way of managing distributed computing, data, instrument, and human resources.
	www.ipg.nasa.gov (97 words)

	Howstuffworks "How Blackouts Work"
		At a high level, the power grid is a very simple thing.
		It consists of a set of large power plants (hydropower plants, nuclear power plants, etc.) all connected together by wires.
		The thing that is so amazing about the power grid is that it cannot store any power anywhere in the system.
	science.howstuffworks.com /blackout.htm (797 words)

	Boston.com / News / Local / N.H. / Mainers relish living off the electric power grid (Site not responding. Last check: 2007-11-07)
		Living off the electric power grid can conjure up images of life on the frontier, without the simplest of luxuries like lights, a TV or a hot shower.
		But it's thought the number is on the rise as technology improves and prices go down for solar power, and as people move to outlying areas in search of land that is affordable, but removed from the power grid.
		While many solar power systems can cost more than $25,000, Bartol installed his for $10,000, just $2,000 more than it would have cost to connect his home to the power grid, he said.
	www.boston.com /news/local/new_hampshire/articles/2005/02/05/mainers_relish_living_off_the_electric_power_grid_even_in_winter?mode=PF (1142 words)

	Redrawing the Electric Power Grid (Site not responding. Last check: 2007-11-07)
		A central issue in the power industry and among alternative power advocates is how best to eliminate the bottlenecks: by building more long-distance transmission lines or by generating more power in small quantities close to where it is needed.
		Power generation capacity has increased sharply since the late 1990's, when there was a wave of construction of large gas-fired plants around the country.
		In theory, the grid is managed to allow electricity to flow freely anywhere within the two giant interconnects, but there are numerous regions where the limited capacity of local lines forces power managers to juggle where the power goes.
	www.nytimes.com /2003/06/24/technology/24GRID.html?ex=1371873600&en=704caf54f646c40a&ei=5007&partner=USERLAND (853 words)

	Recharging the power grid - MIT Technology Review - MSNBC.com
		It’s a bold experiment in large-scale electricity storage on the power grid — the aging maze of interconnected power plants and transmission lines that cover the country.
		Power companies are obliged to build supplemental electricity-generating plants, nearly all of which burn fossil fuels, to meet demand during the busiest hours of the day.
		Deregulation is separating the business of power generation from the business of shipping and distributing electricity, but the business of energy storage falls in a gray area somewhere between those two.
	msnbc.msn.com /id/3078939 (2438 words)

	Howstuffworks "How Power Grids Work"
		It is only during a power failure, when you walk into a dark room and instinctively hit the useless light switch, that you realize how important power is in your daily life.
		Power travels from the power plant to your house through an amazing system called the power distribution grid.
		The grid is quite public -- if you live in a suburban or rural area, chances are it is right out in the open for all to see.
	www.howstuffworks.com /power.htm (223 words)

	WorldChanging: Another World Is Here: Fixing The Power Grid
		While it focuses on the grid in the United States, most of the observations are applicable across the developed world, and give some hints for leapfrogging directions.
		Following this line of thought, an Internet tool which could lead to a provocative future for the power grid is BitTorrent: a Free/Open Source system of distributed file sharing, where a downloader doesn't get the entire file from any one source, but from all BitTorrent users with the file currently online.
		Power usage is going up as more and more toys need more power to run.
	www.worldchanging.com /archives/001702.html (831 words)

	power grid monitoring
		Power systems have become so interdependent that the events in one area can cascade and have significant impacts on other areas that appear, at first glance, to be relatively remote from the source of the initial event.
		When large and interconnected power systems are pushed to their limits for power transfer economics, management of stress is essential.
		He is actively involved in phasor measurements, transient analysis of power systems, SSR studies, system dynamics studies, power quality, railway electrification, capacitor switching and insulation coordination studies.
	tdworld.com /mag/power_monitoring_power_grid/index.html (2244 words)

	Sandia National Laboratories - Electric grid reliability
		The nation's electric power grid is growing increasingly complex and interconnected, with a greater number of power buyers and sellers making a burgeoning number of transactions.
		Traditionally, power companies use simple, worst-case-avoidance software tools to monitor how power is þowing from place to place and to watch for the telltale signs of imminent outages.
		The report also suggests further study of a "distributed power grid": the idea that hundreds of traditional and nontraditional generation sources and storage devices could supply power to the grid at various times and locations, enabling less reliance on mega-scale power plants and giving the grid a broader, more stable foundation.
	www.sandia.gov /LabNews/LN02-11-00/grid_story.html (1040 words)

	Third Workshop on Power Grid Interconnection in Northeast Asia
		These environmental impacts-including both costs and benefits-of grid interconnection range from emissions (and avoided emissions) of air and water pollutants from power generation, to the land use impacts in both transmission line and power plant construction, to the environmental impacts associated with the location of new, large transmission lines in sensitive ecological areas.
		While it is intended that the main theme of this Workshop be the environmental implications of electric power grid interconnections, other aspects (technical and economic for example) of potential grid interconnections between the countries of Northeast Asia will also be discussed, building on the work of the first and second Grid workshops.
		A presentation of a generic outline of environmental issues associated with grid integration, followed by presentations from each country summarizing initial research on the "Possible Environmental Impacts and Benefits of Regional Power Grid Interconnections".
	nautilus.org /archives/energy/grid/2003Workshop (651 words)

	CBS News \| Power Grid Politics \| August 19, 2003 04:33:44
		Critics say there were calls to update the aging power grid several years ago and to create rules for those who operate it.
		While utilities and state governments are stuck in a power struggle over how to prevent massive outages in the future, energy officials admit the ultimate fix will likely come at the cost of the consumer.
		The debate is likely to become muddled in conflict among regional interests, a reluctance of states to surrender power to the federal government, and differences between warring factions within the electric power industry itself.
	www.cbsnews.com /stories/2003/08/17/politics/main568727.shtml (877 words)

	Wired News: Experts Warned of Weak Power Grid (Site not responding. Last check: 2007-11-07)
		The report urged the protection of key elements of the power grid and the creation of an updated system that would limit vulnerabilities to the flow of electricity.
		By contrast, the region's transmission grid languishes in the era of fl-and-white TV, outpaced by the demands of modernized generating plants shoving power into it at one end, or the new appliances sucking electricity out the other end.
		President Bush said Friday the power failures across the Northeast and Midwest are a "wake-up call" to the antiquated state of the nation's electrical grid.
	www.wired.com /news/technology/0,1282,60057,00.html (1166 words)

	washingtonpost.com: Hackers Target U.S. Power Grid (Site not responding. Last check: 2007-11-07)
		Hackers have caused no serious damage to systems that feed the nation's power grid, but their untiring efforts have heightened concerns that electric companies have failed to adequately fortify defenses against a potential catastrophic strike.
		The vulnerability of the nation's electrical grid to computer attack has grown as power companies have transferred control of their electrical generation and distribution equipment from private, internal networks to supervisory control and data acquisition, or SCADA, systems that can be accessed through the Internet or by phone lines, according to consultants and government reports.
		The biggest threat to the grid, analysts said, may come from power companies using older equipment that is more susceptible to attack.
	www.washingtonpost.com /ac2/wp-dyn/A25738-2005Mar10?language=printer (1326 words)

	Vulnerability Of U.S. Power Grid Identified (Site not responding. Last check: 2007-11-07)
		Vulnerabilities inadvertently built into the U.S. power grid, which is one of the most complex systems ever constructed, have been identified by a research team lead by Reka Albert, assistant professor of physics at Penn State.
		However, the grid quickly becomes disconnected when the high-load transmission substations are selectively removed from the system--if the nodes that have the highest load are removed first, followed progressively by the nodes with successively lower loads.
		If the power grid were highly redundant, however, the loss of a small number of nodes should not cause power loss because the system reroutes through alternative paths.
	www.sciencedaily.com /releases/2004/09/040903090114.htm (803 words)

	PNNL News and Publications
		RICHLAND, Wash. -- The Department of Energy's Pacific Northwest National Laboratory is a leader in power grid reliability, from impacts of aging infrastructure, deregulation and vulnerabilities to terrorism to envisioning a power grid of the future using technological advancements.
		The East Coast power outage further proves that despite the United States' technological might, its power system is stuck in the 20th century.
		When the grid is under high periods of stress, a grid-friendly appliance would identify these fluctuations and, within milliseconds, automatically shut down for a short period of time to give the grid operators time to stabilize the system.
	www.pnl.gov /news/2003/03-30.htm (1172 words)

	CNN.com - Major power outage hits New York, other large cities - Aug. 14, 2003
		Power began to flicker on late Thursday evening, hours after a major power outage struck simultaneously across dozens of cities in the eastern United States and Canada.
		A spokeswoman for the Niagara-Mohawk power grid said the cause was still unknown, but that it was not a lightning strike.
		Bryan Lee, a spokesman for the Federal Energy Regulatory Commission, said it appeared that a "cascading flout" destabilized the Niagara-Mohawk power grid as far north as Canada and as far west as Detroit and Cleveland.
	www.cnn.com /2003/US/08/14/power.outage (1312 words)

	Researchers Work To Protect Power Grid From Terrorism
		University of Missouri-Rolla researchers developing ways to protect power systems from overloads may also be developing a system to thwart terrorist threats to the nation’s power grid.
		Vulnerability Of U.S. Power Grid Identified (September 6, 2004) -- Vulnerabilities inadvertently built into the U.S. power grid, which is one of the most complex systems ever constructed, have been identified by a research team lead by Reka Albert, assistant...
		Power suppliers have little control over power failures because they have no localized way to control the transmission network.
	www.sciencedaily.com /releases/2003/08/030828072723.htm (538 words)

	Funagain Games: Power Grid
		Players supply their power stations with resources, which are purchased from a stock market containing the raw materials.
		As these power stations supply several cities, those players probably will not need to buy resources from the market, so the availability of resources is better for the other players.
		Networks do expand and the auction for power stations works well, since, as better ones become available, the fact that you are limited to three power stations means that you do scrap old ones in favour of more efficient plants.
	www.funagain.com /cgi-bin/funagain/14709 (1439 words)

Try your search on: Qwika (all wikis)