Northeast Blackout of 2003

Northeast Blackout of 2003

The Northeast Blackout of 2003 was a massive widespread power outage that occurred throughout parts of the Northeastern and Midwestern United States, and Ontario, Canada on Thursday, August 14, 2003, at approximately 4:15 pm EDT (20:15 UTC), with virtually full restoration by the following day. At the time, it was the most widespread electrical blackout in history.cite web |url= |title=The great 2003 North America blackout |publisher=CBC |date=2003-08-14 |accessdate=2008-09-19] [cite web
url =
title = Timeline
accessdate = 2008-09-15
date = 2003-08-18
publisher = CBC News
] The blackout affected an estimated 10 million people in the Canadian province of Ontario and 40 million people in eight U.S. states.Fact|date=September 2008

Immediate impact

According to the New York Independent System Operator (or NYISO) – the ISO responsible for managing the New York state power grid – a massive power fluctuation affected the transmission grid at 4:10:39 p.m. EDT (20:10:39 UTC).cite web
url =
title = Interim Report on the August 14, 2003 Blackout
date = 2004-01-08
format = PDF
publisher = New York Independent System Operator
accessdate = 2008-09-16
] From then through about 4:15 p.m. EDT (20:15 UTC), outages were reported in Cleveland, Akron, Toledo, New York City, Baltimore, Buffalo, Albany, Detroit, and parts of New Jersey. This was followed by other areas initially unaffected, including all of New York City, portions of southern New York state, New Jersey, Vermont, Connecticut, and most of Ontario, Canada.cite web|url=|title=Major power outage hits New York, other large cities|publisher=CNN|accessdate=2008-09-16] Fact|date=September 2008 Eventually a large, somewhat triangular area bounded by Lansing, Michigan, Sault Ste. Marie, Ontario, the shore of James Bay, Ottawa, New York, and Toledo was left without power. According to the official analysis of the blackout prepared by the US and Canadian governments, more than 508 generating units at 265 power plants shut down during the outage. 22 of these were nuclear power plants.Fact|date=September 2008 In the minutes before the event, the NYISO-managed power system was providing about 28,700 MW of load.At the height of the outage, the load had dropped to 5,716 MW, a loss of approximately 80%.

Within the large area affected, only a little over 200,000 people – in the Niagara Peninsula of Ontario, the easternmost corner of Ontario (centred on Cornwall), the portion of New York state including parts of Albany and north and west of Albany, a small pocket of mid-east Michigan, and the Upper Peninsula of Michigan – continued to have power, while the entire surrounding area dropped off the power grid. The unaffected area was protected by transmission circuit devices at the Sir Adam Beck Hydroelectric Power Stations in Niagara Falls, at a switching station of the hydroelectric power station in Cornwall, as well as central New York state. Philadelphia and the surrounding mid-Atlantic areas were also completely unaffected because PJM disconnected them from the grid.

Some essential services remained in operation in most of these areas, although backup generation systems in some cities were not up to the task. The phone systems remained operational in most areas; however, the increased demand by people phoning home left many circuits overloaded. Water systems in several cities lost pressure forcing boil-water advisories to be put into effect. Cell phones experienced significant service disruptions as cellular transmission towers were overloaded with the sudden increase in volume of calls. Major cellular providers continued to operate on standby generator power. Television and radio stations mostly remained on the air with the help of backup generators which remained online throughout the blackout. Some stations were knocked off the air for hours or during the entire blackout.

It was a seasonally hot day (over 31 °C or 88 °F) across much of the affected regions, and the heat played multiple minor roles in the initial events that triggered the wider regional power outage. The high ambient temperature increased energy demand as people across the region turned on fans and air conditioning. This caused the power lines to sag as higher currents heated the lines. When the outage knocked out air conditioning, buildings became hot, leading to dissatisfied residents. However, there was not the surge in crime that had been feared by many, including law enforcement agencies.Fact|date=November 2007

In areas where power remained off after nightfall, the Milky Way and orbiting artificial satellites became visible to the naked eye in metropolitan areas where they cannot ordinarily be seen due to the effects of particulate air pollution and light pollution.

Most of the interstate passenger rail transport North-East Corridor service was interrupted, as it uses electric locomotives; electrified commuter railways also shut down. VIA Rail in Canada was able to continue most of its service, and Amtrak and the commuter railways were able to introduce bare-bones diesel-powered services within 48 hours. The power outage's effects on international air transport and financial markets were widespread. The reliability and vulnerability of all electrical power grids was called into question.

Media coverage and official reports

In the United States and Canada, the regional blackout dominated news broadcasts and news headlines beginning August 15. U.S. and Canadian broadcast media pre-empted normal programming in favor of full-time, advertising-free coverage of the unfolding story. Radio stations in the Windsor area took to referring to the incident as "Power Meltdown 2003". [ [ :: View topic - The Black-Out ] ] [ [ Chomedey High School Reunion ] ] Once terrorism had been conclusively ruled out as a cause, many stations switched back to normal programming following an 8:30 p.m. EDT address by President George W. Bush. National news stations, such as CBC and CNN, continued to cover the story by inviting politicians and electrical experts to discuss the situation and ways to prevent blackouts. Internationally, coverage of the story focused on the development of the situation in New York City.

tatements made in the aftermath

During the first two hours of the event, various officials offered speculative explanations as to its root cause:
*Official reports from the office of Canadian Prime Minister Jean Chrétien stated that lightning had struck a power plant in northern New York, resulting in a cascading failure of the surrounding power grid and wide-area electric power transmission grid. However, power officials in the State of New York responded by stating that the problem did not originate in the United States, that there was no rain storm in the area where the lightning strike was supposed to have taken place, and that the power plant in question remained in operation throughout the blackout.
*Canadian Defence Minister John McCallum blamed an outage at a nuclear plant in Pennsylvania, but that state's authorities reported that all the plants were functioning normally. McCallum later stated that his sources had given him incorrect information.
*New York state Governor George Pataki blamed the power outage on Canada, stating "the New York independent systems operator says they are virtually certain it had nothing to do in New York state. And they believe it occurred west of Ontario, cascaded from there into Ontario, Canada, and through the northeast." [ [,,2-10-1462_1402915,00.html Canada gets blackout blame: World: News: News24 ] ] This was later proven to be false.
*CNN cited unnamed officials as saying that the Niagara-Mohawk power grid, which provides power for large portions of New York and parts of Canada, was overloaded. Between 4:10 and 4:13 p.m. EDT, 21 power stations throughout that grid shut down.
*New Mexico governor Bill Richardson, who formerly headed the Department of Energy, in a live television interview 2 hours into the blackout characterized the United States as "a superpower with a third-world electricity grid." In Europe, this statement was published accompanied with comparisons highlighting the tighter, safer and better interconnected European electricity network (though it would suffer a similar blackout six weeks later).
*In the ensuing days, various critics focused on the role of electricity market deregulation for the inadequate state of the electric power transmission grid, claiming that deregulation laws and electricity market mechanisms have failed to provide market participants with sufficient incentives to construct new transmission lines and maintain system security.
*Later that night, claims surfaced that the blackout may have started in Ohio up to one hour before the network shut down, a claim denied by Ohio's FirstEnergy utility.
*The president of the North American Electric Reliability Corporation said that the problem originated in Ohio. [ link|date=March 2008]
*As of Saturday morning, investigators believed that the problem began with a sudden shift in the direction of power flow on the northern portion of the Lake Erie Transmission Loop, a system of transmission lines that circles Lake Erie on both U.S. and Canadian soil.



Electrical power cannot easily be stored over extended periods of time, and is generally consumed less than a second after being produced. The demand load on any power grid must be matched by the supply to it and its ability to transmit that power. Any great overload of a power line, or underload/overload of a generator, can cause hard-to-repair and costly damage, so the power grid is disconnected if a serious imbalance is detected.

Power lines normally grow longer and sag between their towers when they get hotter as they carry more power, reaching a designed lowest height above the ground at a specified power level. To prevent the sagging lines from coming too close to trees and causing a short circuit (which can cause a forest fire), the trees are pruned, often on a five-year cycle. If the lines touch the trees, they are disconnected by systems which detect the sudden change in power flow from the short circuit.

These power changes from a line going out of service can sometimes cause cascading failures in the areas around them as other parts of the system see the fluctuations. These are normally controlled by delays built into the shutdown processes and by robust power networks with many alternative paths for power to take, which has the effect of reducing the size of the ripples. The borders of the blacked out areas on 14 August were where the blackout areas encountered systems with more spare capacity.

The operators of the power system control center are responsible for ensuring that they balance the supply of power, the loads (customers demanding that power), and the transmission line capacity, so that their system is in a state where no single fault can cause it to fail. After a failure affecting their system, operators are required within thirty minutes to obtain more power from generators or other regions or to shed load (meaning cut power to some areas), until they can be sure that the worst remaining possible failure anywhere in the system will not cause an unplanned system collapse. In an emergency they are expected immediately to shed load as required to bring the system into balance.

To assist the operators there are computer systems, with backups, which issue alarms when there are faults on the transmission or generation system. Power flow modeling tools let them analyze the current state of their network, predict whether any parts of it may be overloaded, and predict what the worst possible failure left is, so that they can change the distribution of generation or reconfigure the transmission system to prevent a failure should this situation occur. If the computer systems and their backups fail, the operators are required to monitor the grid manually, instead of relying on computer alerts. If they cannot interpret the current state of the power grid in such an event, they are to invoke a contingent operational pattern. If there is a failure, they are also required to notify adjacent areas which may be affected, so those can predict the possible effects on their own systems.

Backing up the local operators are regional coordinating centers which bring together information from adjacent areas and perform further checks on the system, looking for possible failures and alerting operators in different systems to them.

Investigation efforts

A joint federal task force was formed by the governments of Canada and the U.S. to oversee the investigation and report directly to Ottawa and Washington. The task force was led by then-Canadian Natural Resource Minister Herb Dhaliwal and U.S. Energy Secretary Spencer Abraham.

In addition to determining the initial cause of the cascading failure, the investigation of the incident also included an examination of the failure of safeguards designed to prevent a repetition of the Northeast Blackout of 1965. Issues of failure to maintain the electrical infrastructure, failure of upgrading to so-called "smart cables," failure of shunting and rerouting mechanisms, AC vs. DC intersystem ties, and substitution of electricity market forces for central planning were expected to arise. The North American Electric Reliability Corporation, a joint Canada-U.S. council, is responsible for dealing with these issues.

On November 19, 2003, Energy Secretary Spencer Abraham said his department would not seek to punish FirstEnergy Corp for its role in the blackout because current U.S. law does not require electric reliability standards. Abraham stated, "The absence of enforceable reliability standards creates a situation in which there are limits in terms of federal level punishment." []


In February 2004, the U.S.-Canada Power System Outage Task Force released their final report, placing the main cause of the blackout on FirstEnergy Corporation's failure to trim trees in part of its Ohio service area. The report said that a generating plant in Eastlake, Ohio (a suburb of Cleveland) went offline amid high electrical demand, and that strained high-voltage power lines (located in a distant rural setting) later went out of service when they came in contact with "overgrown trees". The cascading effect that resulted ultimately forced the shutdown of more than 100 power plants. [ [ Natural Resources Canada - Canada-U.S. Power System Outage Task Force Interim Report ] ]

Computer failure

The Task Force also found that FirstEnergy did not take remedial action or warn other control centers until it was too late, because of a computer software bug in General Electric Energy's Unix-based XA/21 energy management system [ [ Software Bug Contributed to Blackout ] ] that prevented alarms from showing on their control system. [ [ Testing Hotlist Update: April 2004 Archives ] ] This alarm system stalled because of a race condition bug. [ [ Tracking the blackout bug ] ] After the alarm system failed silently without being noticed by the operators, unprocessed events (that had to be checked for an alarm) started to queue up and the primary server failed within 30 minutes. Then all applications (including the stalled alarm system) were automatically transferred to the backup server, which also failed due to the same reason as the primary one. After this time (14:54), all applications on these two servers stopped working. Another effect of the failing servers was that the screen refresh rate of the operators' computer consoles slowed down from 1-3 seconds to 59 seconds per screen. [ [ Microsoft Word - NERC Report on Blackout - Master.doc ] ]

equence of events

Blackout sequence of events, August 14, 2003 [ [ What's wrong with the electric grid? - The Industrial Physicist ] ] [citation
title=Chapter 5: How and Why the Blackout Began in Ohio
publisher=NERC Final Report
] [ [ CNN: A timeline of the 2003 blackout] (August 16, 2003)] (times in EDT):

*12:15 p.m. Incorrect telemetry data renders inoperative the state estimator, a power flow monitoring tool operated by the Ohio-based Midwest Independent Transmission System Operator (MISO). An operator corrects the telemetry problem but forgets to restart the monitoring tool.
* 1:31 p.m. The Eastlake, Ohio generating plant shuts down. The plant is owned by FirstEnergy, an Akron, Ohio-based company that had experienced extensive recent maintenance problems.Specify|date=July 2008
* 2:02 p.m. The first of several 345 kV overhead transmission lines in northeast Ohio fails due to contact with a tree in Walton Hills, Ohio. [ [ Blackout Investigation ] ] [ [ The Cleveland Plain Dealer Archive Search ] ]
* 2:14 p.m. An alarm system fails at FirstEnergy's control room and is not repaired.
* 2:27 p.m. A second 345 kV line fails due to contact with a tree.

* 3:05 p.m. A 345 kV transmission line known as the Chamberlain-Harding line fails in Parma, south of Cleveland, due to a tree.
* 3:17 p.m. Voltage dips temporarily on the Ohio portion of the grid. Controllers take no action.
* 3:32 p.m. Power shifted by the first failure onto another 345 kV power line, the Hanna-Juniper interconnection, causes it to sag into a tree, bringing it offline as well. While MISO and FirstEnergy controllers concentrate on understanding the failures, they fail to inform system controllers in nearby states.
* 3:39 p.m. A FirstEnergy 138 kV line fails.
* 3:41 p.m. A circuit breaker connecting FirstEnergy's grid with that of American Electric Power is tripped as a 345 kV power line (Star-South Canton interconnection) and fifteen 138 kV lines fail in rapid succession in northern Ohio. Later analysis suggests that this could have been the last possible chance to save the grid if controllers had cut off power to Cleveland at this time.
* 3:46 p.m. A sixth 345 kV line, the Tidd-Canton Central line, trips offline.
* 4:06 p.m. A sustained power surge on some Ohio lines begins an uncontrollable cascade after another 345 kV line (Sammis-Star interconnection) fails.
* 4:09:02 p.m. Voltage sags deeply as Ohio draws 2 GW of power from Michigan, creating simultaneous undervoltage and overcurrent conditions as power attempts to flow in such a way as to rebalance the system's voltage.
* 4:10:34 p.m. Many transmission lines trip out, first in Michigan and then in Ohio, blocking the eastward flow of power around the south shore of Lake Erie. Suddenly bereft of demand, generating stations go offline, creating a huge power deficit. In seconds, power surges in from the east, overloading east-coast power plants whose generators go offline as a protective measure, and the blackout is on.
* 4:10:37 p.m. The eastern and western Michigan power grids disconnect from each other. Two 345 kV lines in Michigan trip. A line that runs from Grand Ledge to Ann Arbor known as the Oneida-Majestic interconnection trips. A short time later, a line running from Bay City south to Flint in Consumers Energy's system known as the Hampton-Thetford line also trips.
* 4:10:38 p.m. Cleveland separates from the Pennsylvania grid.
* 4:10:39 p.m. 3.7 GW power flows from the east along the north shore of Lake Erie, through Ontario to southern Michigan and northern Ohio, a flow more than ten times greater than the condition 30 seconds earlier, causing a voltage drop across the system.
* 4:10:40 p.m. Flow flips to 2 GW eastward from Michigan through Ontario (a net reversal of 5.7 GW of power), then reverses back westward again within a half second.
* 4:10:43 p.m. International connections between the United States and Canada begin failing.
* 4:10:45 p.m. Northwestern Ontario separates from the east when the Wawa-Marathon 230 kV line north of Lake Superior disconnects. The first Ontario power plants go offline in response to the unstable voltage and current demand on the system.
* 4:10:46 p.m. New York separates from the New England grid.
* 4:10:50 p.m. Ontario separates from the western New York grid.
* 4:11:57 p.m. The Keith-Waterman, Bunce Creek-Scott 230 kV lines and the St. Clair-Lambton #1 and #2 345 kV lines between Michigan and Ontario fail.
* 4:12:03 p.m. Windsor, Ontario and surrounding areas drop off the grid.
* 4:13 p.m. End of cascading failure. 256 power plants are off-line, 85% of which went offline after the grid separations occurred, most due to the action of automatic protective controls.


Affected infrastructure

Power generation

With the power fluctuations on the grid, power plants automatically went into "safe mode" to prevent damage in the case of an overload. This put much of the nuclear power normally available offline until those plants could be slowly taken out of "safe mode". In the meantime, all available hydro-electric plants (as well as many coal and oil fired plants) were brought online, bringing some electrical power to the areas immediately surrounding the plants by the morning of August 15. Homes and businesses both in the affected area and in nearby areas were requested to limit power usage until the grid was back to full power.

Water supply

Some areas lost water pressure because pumps didn't have power. This loss of pressure caused potential contamination of the water supply. Four million customers of the Detroit water system in eight counties were under a boil water advisory until 18 August, four days after the initial outage. One county, Macomb, ordered all 2,300 restaurants closed until they were decontaminated after the advisory was lifted. Twenty people living on the St. Clair River claim to have been sickened after bathing in the river during the blackout. The accidental release of 140 kg (310 lb) of vinyl chloride from a Sarnia, Ontario chemical plant was not revealed until five days later. Cleveland also lost water pressure and instituted a boil water advisory. Cleveland and New York had sewage spills into waterways, requiring beach closures. Kingston lost power to sewage pumps, causing raw waste to be dumped into the Cataraqui River at the base of the Rideau Canal.


Amtrak's Northeast Corridor railroad service was stopped north of Philadelphia, Pennsylvania, and all trains running into and out of New York City were shut down, initially including the Long Island Rail Road and the Metro-North Railroad; both were able to establish a bare-bones "all-diesel" service by the next morning. Canada's VIA Rail, which services Toronto and Montreal, suffered service delays, but most routes were still running, and normal service was resumed on most VIA routes by the next morning.

Passenger screenings at affected airports ceased. Regional airports were shut down for this reason. In New York, flights were cancelled even after power had been restored to the airports because of difficulties accessing "electronic-ticket" information. Air Canada flights remained grounded on the morning of August 15 due to reliable power not having been restored to its Mississauga, control center. It expected to resume operations by midday. This problem affected all Air Canada service and canceled the most heavily traveled flights to Halifax and Vancouver. At Chicago's Midway International Airport, Southwest Airlines employees spent 48 hours dealing with the disorder caused by the blackout's sudden incidence.Fact|date=June 2008

Many gas stations were unable to pump fuel due to lack of electricity. In North Bay, Ontario, for instance, a long line of transport trucks was held up, unable to go further west to Manitoba without refueling. In some cities, traffic problems were compounded by motorists who simply drove until their cars ran out of gas on the highway. Gas stations operating in pockets of Burlington, Ontario, that had power were reported to be charging prices up to 99.9 cents/litre ($3.776 per US gallon) when the going rate prior to the blackout was lower than 70 cents/litre. Customers still lined up for hours to pay prices most people considered unjustified by the blackout. Although part of the price hike was arguably due to price gouging, station operators could also claim that they had a limited supply of gasoline and did not know when their tanks would be refilled, prompting the drastic price increases.

Many oil refineries on the East Coast of the United States shut down as a result of the blackout, and were slow to resume gasoline production. As a result, gasoline prices were expected to rise approximately 10 cents/gallon (3 c/L) in the United States. In Canada, gasoline rationing was also considered by the authorities.


Cellular communication devices were disrupted. This was mainly due to the loss of backup power at the cellular sites where generators ran out of fuel or cell phone batteries ran out of charge. Wired telephone lines continued to work, although some systems were overwhelmed by the volume of traffic, and millions of home users had only cordless telephones depending on house current. Many people who in prior blackouts would have relied on transistor radios for news no longer had one, having long since replaced them with portable CD players or similar devices. Most New York and many Ontario radio stations were momentarily knocked off the air but were able to return with backup power.

Cable television systems were disabled, and areas that had power restored (and had power to their television sets) could not receive information until power had also been restored to the cable provider. Those who relied on the Internet were similarly disconnected from their news source for the duration of the blackout, with the exception of dialup access from laptop computers, which was widely reported to work until the battery would run out of charge.

The blackout impacted communications well outside the immediate area of power outage. The New Jersey-based internet operations of Advance Publications were among those knocked out by the blackout. As a result, the internet editions of Advance newspapers as far removed from the blackout area as "The Birmingham News", the "New Orleans Times Picayune", and "The Oregonian" were offline for days. ["Blackout Stops Presses, Shuts Web Sites," "NewsInc", August 18, 2003]

Amateur radio operators passed emergency communications during the blackout. [ [ ARRLWeb: Hams a Bright Spot During Power Blackout ] ]


Large numbers of factories were closed in the affected area and others outside the area were forced to close or slow work because of supply problems and the need to conserve energy while the grid was being stabilized. At one point a 7-hour wait developed for trucks crossing the Ambassador Bridge between Detroit and Windsor due to the lack of electronic border check systems. Freeway congestion in affected areas affected the "just-in-time" supply system. Some industry including the auto industry did not return to full production until 22 August.


Incidents of looting were reported in Ottawa, Ontario and Brooklyn, New York. However, the looting and general civic disturbance was a fraction of that seen in the New York City blackout of 1977.

By region

New York, United States

Almost the entire state of New York lost power. Exceptions include Freeport and Rockville Centre on Long Island, which relied on localized power plants; the southernmost areas of the Southern Tier of Upstate New York, which relied on power from Pennsylvania; the city of Plattsburgh; Starrett City, Brooklyn, which has auxiliary power; most of the city of Buffalo; and pockets of Amherst in the Buffalo area, running off university power. There were also some small pockets of power in the suburbs of Rochester, as a few smaller power companies operating in those areas were able to keep running. Power was also available at the Kodak Park facility and its surrounding neighborhood in the city. Power was lost at the Oak Hill Country Club, in nearby Pittsford, New York, where the PGA Championship was being played, which caused minor interruptions to the tournament. Also, that evening's Major League Baseball game between the New York Mets and the San Francisco Giants at Shea Stadium was postponed. In New York, all prisons were blacked out and switched to generator power. The two Indian Point nuclear reactors on the Hudson River near Peekskill, the two reactors at Nine Mile Point nuclear plant, the single reactor at Ginna nuclear plant near Rochester and the FitzPatrick reactor near Oswego all shut down. With three other nuclear plants shutdown in Ohio, Michigan, and New Jersey, a total of nine reactors were affected. The governor of New York state, George Pataki, declared a state of emergency.

Manhattan, including Wall Street and the United Nations, was completely shut down, as were all area airports, and all New York area rail transportation including the subway, the PATH lines between Manhattan and New Jersey, Metro North Railroad and the Long Island Rail Road. Hundreds of people were trapped in elevators; by late evening the New York City Fire Department had reportedly confirmed that all stalled elevators in approximately 800 Manhattan high-rise office and apartment buildings had been cleared. More than 600 subway and commuter rail cars were trapped between stations; the NY State Metropolitan Transportation Authority and the Port Authority of New York and New Jersey—which operates the PATH lines—reported that all passengers were evacuated without serious injury. However, PATH was first to resume subway service on Sixth Avenue (albeit on 15-minute headways) by 6PM that evening.

Without traffic lights, gridlock was reported as persons in lower and midtown Manhattan fled their offices on foot; for hours into the evening the streets, highways, bridges and tunnels were jammed with traffic and pedestrians leaving Manhattan, though many civilians opted to help direct traffic. The bus journey from Manhattan to Washington which normally takes four hours took more than eight hours with reports that it took four hours just to get out of Manhattan. Mayor Michael Bloomberg advised residents to open their windows, drink plenty of liquids to avoid heat stroke in the heat, and not to forget their pets. Temperatures were 92 °F (33 °C) with high humidity, as New York had just experienced a record-breaking rain spell that had started at the end of July. With cell phone operation mostly stalled by circuit overloads, New Yorkers were lining up 10 deep or more at pay phones as ordinary telephone service remained largely unaffected.

While some commuters were able to find alternate sleeping arrangements, many were left stranded in New York and slept in parks and on the steps of public buildings. While practically all businesses and retail establishments closed down, many bars and pubs reported a brisk business as many New Yorkers took the opportunity to spend the evening "enjoying" the blackout. Since most perishable items were going to spoil anyway, many restaurants and citizens simply prepared what they could and served it to anyone who wanted it, leading to vast block parties in many New York neighborhoods. The Indigo Girls were scheduled to perform that evening at Central Park SummerStage, and the band took the stage as planned to play one of the only shows in the affected area, using generators that had been filled with fuel that morning. The venue also had bathrooms and vendors cooking food on propane grills.

40,000 police and the entire fire department were called in to maintain order. At least two fatalities were linked to the use of flames to provide light, and many nonfatal fires also resulted from the use of candles. The City's Office of Emergency Management activated the City's Emergency Operations Center, from which more than 70 agencies coordinated response efforts, which included delivery of portable light towers to unlit intersections, generators and diesel fuel to hospitals, and a portable steam generator necessary to power air conditioning units at the American Stock Exchange.

Verizon's emergency generators failed several times, leaving the emergency services number 9-1-1 out of service for several periods of about a quarter hour each. The City's 311 information hotline received over 175,000 calls from concerned residents during the weekend. Amateur radio operators attached to New York City ARES provided a backup communications link to emergency shelters and hospitals. Amateur radio repeaters were supplied with emergency power via generators and batteries and remained functional.

Many major U.S. networks (CBS, NBC, ABC, and FOX), and some cable TV Networks like HBO, MTV, and Nickelodeon were mostly unable to broadcast because of the lack of electricity in the New York area, however back-up stations in Houston, Texas, Dallas, Texas, and flagship transmitters there made it possible for prime-time television to be broadcast. (ABC chose instead to cover the news from Washington, D.C. during the blackout).

For delayed effects at Niagara Falls, see below under Ontario.

New Jersey, United States

Affected areas included most of Hudson, Morris, Essex, Union, Passaic and Bergen Counties, including the major cities of Paterson, and Newark although some sections of Newark and East Orange still had power; also, small sections of certain towns in Essex County had power. Power was returned first to the urban areas because of concerns of safety and unrest. Counties as far south as Monmouth were affected, but power was restored within an hour. Some towns in Bergen County saw only a momentary dropout in power, but did see wild oscillations in powerline voltage, ranging from about 90V to 135V, up and down every few minutes for an hour.

The day following the blackout, August 15, the New Jersey Turnpike stopped collecting tolls until 9:00 a.m.

Baltimore, United States

The outage affected many households and businesses in Baltimore City and all of the surrounding counties including Baltimore County. Flights were canceled and rerouted at the airports in the Baltimore-Washington area. Flights were canceled at Baltimore-Washington International Thurgood Marshall Airport (BWI), Washington Dulles International Airport, and Ronald Reagan Washington National Airport.

Connecticut, United States

Parts of New London, Hartford, New Haven, Litchfield and Fairfield Counties, from Greenwich to Danbury and Bridgeport, were affected, although most of the state had power all evening, aside from a few momentary interruptions that caused computers to reboot. Metro North trains stopped, and remained on the tracks for hours, until they could be towed to the nearest station. Generally, most of the state east of Interstate 91, and some places west of I-91, had power during the duration of the blackout, with some of New Haven's eastern suburbs being seen as the easternmost extreme of the effects of the blackout.

A local controversy ensued in the days after the blackout, when the federal government ordered power companies to energize the HVDC Cross Sound Cable between New Haven and Long Island. This cable had been installed, but had not been activated due to environmental and fisheries concerns. The Attorney General of Connecticut, Richard Blumenthal, and the Governor of New York, George Pataki, traded insults over the cable. Connecticut politicians expressed their outrage that the cable was being turned on, since it did not help anyone in Connecticut, as the cable would transport power from Connecticut to Long Island.

Massachusetts, United States

A small area of extreme western Massachusetts was affected. In Worcester the event was of sufficient magnitude to reboot some computers, while in Springfield the effect of the event was enough to cause the automatic startup of commercial and industrial backup generation facilities.

Michigan, United States

About 2.3 million households and businesses were affected, including almost all of Metro Detroit, as well as Lansing, Ann Arbor, and surrounding communities in southeast Michigan. The blackout affected three Michigan utilities; Detroit Edison, (entire system went down) Lansing Board of Water and Light, and a small portion of Consumers Energy's system in the southeastern corner of the state. Word quickly spread to the surrounding areas without power and many flocked to surrounding areas that still had power, resulting in crowded stores, packed restaurants, booked hotels, and long queues for the gas stations in these towns.Fact|date=June 2008 TV stations were temporarily knocked off the air and water supplies were disrupted in Detroit due to the failure of electric pumps. Because of the loss of water pressure all water was required to be boiled before use until August 18. Several schools which had planned to begin the school year 18 August were closed until clean water was available. A Marathon Oil refinery in Melvindale, near Detroit suffered a small explosion from gas buildup, necessitating an evacuation within one mile (1.6 km) around the plant and the closure of Interstate 75. Officials feared the release of toxic gases. Heavy rains on Friday coupled with the lack of sewage pumps closed other expressways and prompted urban flood warnings. Untreated sewage flowed into local rivers in Lansing and Metropolitan Detroit as contingency solutions at some sewage treatment plants failed. In the midst of a summer heat wave, Michiganders were deprived of air conditioning. Several people, mostly elderly individuals, had to be treated for symptoms of heat stroke. In the Detroit area, local television stations' news helicopters were told by each stations' management to "stay above the cars' headlights" at night, and to not venture into Downtown Detroit (due to the hazard of flying into an unlit skyscraper). During the days immediately after the blackout, many stations were back on the air, but with limited resources (in one case, WXYZ-TV's news anchor was wearing a T-shirt and shorts, as opposed to his normal news suit, and apologized to viewers for the "rather warm conditions" in the station, as they only had one air conditioner and a couple fans working). The Downriver Communities would also have to contend with basements flooded with sewage-laden water on the weekend immediately after the blackout, with water and sewage pumps off from a lack of power, much to the general annoyance of residents in the areas. News crews of the areas broadcast notices during their coverages of the blackouts to the Downriver residents, explaining why the pumps have shorted out, as well as to limit water usage ("most places have water pressure, some have low pressure...some have none, and some even have "negative pressure". That means in the next few hours, people in the downriver communities should expect flooded basements from, so move all your valuables high up and out of the basements", as WDIV-TV warned). West Michigan, including the communities of Grand Rapids, Muskegon, and Holland were mostly unaffected.

Ohio, United States

Over 540,000 homes and businesses were without power. In Cleveland, water service stopped because the city is supplied by electric pumps and backup electricity was available only on a very limited basis and water had to be boiled for several days afterwards. Portions of the cities of Akron, Mansfield, Marion and Ashland were without power. Cleveland declared a curfew on all persons under the age of 18. At Cedar Point Amusement Park in Sandusky, park employees had to help guests walk down the steps of the convert|200|ft|m|-1|sing=on-tall Magnum XL-200 rollercoaster, which had stopped on the lift hill due to the blackout. In Toledo, the Mud Hens baseball team postponed the game scheduled for that night. However, some parts of the city were unaffected by the blackout, notably the suburb of Sylvania.

Ontario, Canada

Traffic lights, the subway and streetcars, the Toronto Stock Exchange, and CBC's Toronto studios were shut down in Toronto. The CBC switched to its backup studios in both Calgary and Vancouver for coverage, because newsgathering in Toronto was extremely difficult. The Toronto studios were only run by UPS systems. Many passengers had to be evacuated from subway trains by walking through the tunnels. Major Toronto hospitals reported that they had switched to generators and did not experience problems. The 9-1-1 system was operational. Highway 407, the world's first all-electronic toll highway, was gridlocked with passengers hoping to get a free ride.Fact|date=February 2007 Parliament Hill was evacuated in Ottawa.

Toronto officials asked residents to curtail unnecessary use of water, as pumps were not working and there was only a 24-hour supply.

Traffic lights, which had no backup power, were all knocked out. All intersections were to be considered an all-way stop. Coupled with the beginning of the evening rush hour, this caused traffic problems. In many major and minor intersections in both large and small cities, such as Toronto and Burlington, ordinary citizens began directing traffic until police or others relieved them. Since there were not enough police officers to direct traffic at every intersection during the afternoon rush hour, passing police officers distributed fluorescent jackets to people who were directing traffic. Drivers and pedestrians generally followed the instructions from them even though they were not police officers.

Fierce disruptions of truck traffic in northeastern Ontario were reported due to the unavailability of fuel, including the backlog near North Bay. The tunnel and bridge between Windsor and Detroit were also closed, with the bridge's pillars illuminated by emergency floodlights, as to not pose a shipping and airplane hazard.

About 140 miners were marooned underground in the Falconbridge mine in Sudbury when the power went out. Mine officials said that they were safe and could be evacuated if necessary, but were not being evacuated due to the risks of doing so with no power. They were safely evacuated by the morning. In Sarnia, a refinery scrubber lost power and released above-normal levels of pollution; residents were asked to close their windows.

On the evening of August 14, Ontario premier Ernie Eves declared a state of emergency, advising nonessential personnel not to go to work on Friday, August 15. Residents were asked not to use televisions, washing machines, or air conditioners if possible, and warned that some restored power might go off again.Although the full state of emergency was lifted the next day (a Saturday), residents were warned that the normal amount of power would not be available for days, and were still asked to reduce power consumption. The roof of the Skydome in Toronto remained open in an effort to conserve power until August 21, when a thunderstorm struck.

The Toronto Transit Commission operated its streetcars on the Friday, but not on the weekend, and did not reactivate the subway and RT until Monday, August 18, after assurances were received that they would be exempted from any rotating blackouts that might be needed.

Major events such as concerts were canceled for several days, and the opening of the Canadian National Exhibition, scheduled for August 15, was postponed to Tuesday, August 19.

For two days of this recovery period, diversion of water from the Niagara River for hydroelectric generation was increased to the maximum level, normally used only at night and in winter in order to maintain the scenic appearance of Niagara Falls. The resultant drop in the river level below the falls meant that the Maid of the Mist tour boats could not dock safely, and their operation had to be suspended.

The Petro-Canada refinery in Oakville had to perform an emergency shutdown due to the lack of power. The plant's flare system produced large flames during the shutdown, leading to erroneous reports in the media that there had been a fire in the plant.Fact|date=June 2008 The Petro Canada lubricants plant in Mississauga exploded a week later due to the increased demand. [ [ Petro Canada | Update on Fire and Explosion at Petro-Canada Lubricants Plant in Mississauga, Ontario] ]

Emergency services

In New York, about 3,000 fire calls were reported, many from people using candles. Emergency services responded to 80,000 calls for help, more than double the average.


The blackout contributed to at least eleven fatalities,

* In Ontario, three fatalities occurred, a cyclist hit by a car [ [ The ] ] and, in Ottawa, a pedestrian hit by a car and a fire victim, although the blackout cannot be solely identified as the reason. [ [ Casa Grande Valley Newspapers Inc ] ]
* In Connecticut, one fatality was reported.
* In New York City, six fatalities were reported. Two were deaths from carbon monoxide, two from fire, one as a result of a fall from a roof while breaking into a shoe store, and one man died of a heart attack in his neighbor's apartment after climbing the 17 flights to their floor.
* In the Detroit suburb of Harper Woods, Michigan, one man was reported dead on WXYZ-TV's news from carbon monoxide poisoning from using a generator inside his house.
* In Pittsfield Township, Michigan, a 27-year-old Belleville, Michigan man was reported dead when a fire destroyed a mobile home, according to the "Ann Arbor News". Officials said the fire was apparently caused when candles were left burning during the blackout.

Long term effects

The Ontario government fell in a provincial election held in October 2003; power had long been a major issue. The government may have been hurt by the success of Quebec and Manitoba, which were not affected whereas Ontario was shut down. The extra publicity given to Ontario's need to import electricity from the United States, mostly due to a decision of the government not to expand the province's power generating capabilities, may also have adversely affected the Conservative government. Premier Ernie Eves' handling of the crisis was also criticized; he was not heard from until long after Mayor Bloomberg and Governor Pataki had spoken out. Due to the regular announcements he gave in the days following the blackout, Eves enjoyed a moderate increase in the polls that his party took as a sign of an opportunity to call an election they could win, however that did not prove to be the case.

In the United States, the Bush administration has emphasized the need for changes to the U.S. national energy policy, Critical Infrastructure Protection, and Homeland Security. During the blackout, most systems that would detect unauthorized border crossings, port landings, or detect unauthorized access to many vulnerable sites, failed. There was considerable fear that future blackouts would be exploited for terrorism. In addition, the failure highlighted the ease with which the power grid could be taken down.

Restoration of service

By evening of August 14, power had been restored to:

*Many areas of the Niagara Region in Ontario;
*Areas of the Ontario Golden Horseshoe from St. Catharines to Burlington (supplied from Niagara Falls);
*Parts of southwestern Ontario, particularly areas near the Bruce Nuclear Power Plant, lost power for only 4-8 hours;
*parts of Mississauga;
*parts of London, Ontario;
*western Ottawa and Kanata;
*a portion of downtown Toronto;
*Cornwall and Pembroke, Ontario;
*three-quarters of the million customers who had lost power in New Jersey;
*parts of Pennsylvania, Ohio and Michigan;
*parts of Long Island;
*Albany and its surroundings;
*New London County, Connecticut

Con Edison retracted its claim that New York City would have power by 1 a.m. That night some areas of Manhattan regained power at approximately 5 a.m. (August 15), the New York City borough of Staten Island regained power around 3 a.m. on August 15, and Niagara Mohawk predicted that the Niagara Falls area would have to wait until 8 a.m.

By early evening of August 15, two New York airports and Cleveland airport were back in service.

Half of the affected part of Ontario had power by the morning of 15 August, though even in areas where it had come back online, some services were still disrupted or running at lower levels. The last areas to regain power were usually suffering from trouble at local electrical substations that was not directly related to the blackout itself.

By 16 August, power was fully restored in New York and Toronto. However, Toronto's subway and streetcars remained out of service until 18 August to prevent the possibility of equipment being stuck in awkward locations if the power was interrupted again. Power had been mostly restored in Ottawa, though authorities warned of possible additional disruptions and advised conservation as power continued to be restored to other areas. Ontarians were asked to reduce their electricity use by 50% until all generating stations could be brought back on line. Four remained out of service on the 19th. Illuminated billboards were largely dormant for the week following the blackout, and many stores had only a portion of their lights on. Those who did not engage in electricity conservation were treated with derision and scorn from fellow citizens. Among these were the news television stations that had many lights, TV screens, and sets fully working, the CTV Network to note.

Preparations against the possible disruptions threatened by the Year 2000 problem have been credited for the installation of new electrical equipment and systems which allowed for a relatively rapid restoration of power in some areas.

References in popular culture

*In the 2006 film "Déjà Vu," an FBI special unit can see through time using a machine that drains large amounts of power. The film states that the blackout was caused by a time-travel incident caused by the machine. When the technicians explain this to Denzel Washington's character, one of them simply remarks "My bad."
*An advertisement in cinemas in the United Kingdom by mobile phone provider Orange referenced this blackout when asking film-goers to turn off their mobile phone.
*The blackout is mentioned in the video game "". Following a similar power failure in 2007, the NSA consults with Japanese intelligence on the location of Abrahim Zherkezi, a computational theorist who consulted with the Department of Energy in restructuring the national grid following the 2003 blackout.
*Gypsy punk band Gogol Bordello's song "Oh No" was written about the blackout.
*The last third of John Cameron Mitchell's film "Shortbus" takes place during the blackout.
*The Great Lakes Brewing Company, a Cleveland microbrewery, named their Imperial Russian Stout the Blackout Stout in commemoration of the blackout. [ [ Great Lakes Brewing Company, Cleveland, Ohio ] ]
*In the comic book series "Ex Machina", the blackout is caused by a traveler from a parallel universe.
*The blackout took place during the filming of an episode on MTV's reality show "Rich Girls", which stars Ally Hilfiger and Jaime Gleicher. In the episode, Gleicher panics as her mother lights candles and sits by the edge of the window in their penthouse, because the phones do not work and she is worried that they will not be able to contact emergency services if needed. Hilfiger is seen taking a bus with her entourage because they were unable to contact their limo driver.
*The blackout was the subject of the 2008 BET film "Blackout". It followed the lives of a Brooklyn neighborhood hit by looting and violence during the power failure.
*Iggy Pop & The Stooges were scheduled to play their first concert in their hometown of Detroit since 1974 on the night of the blackout. In the liner notes of the DVD of the rescheduled concert, a facetious reference is made to the blackout being caused by guitarist Ron Asheton testing his equipment during soundcheck.
*A passage in Chuck Klosterman's 2005 non-fiction book recounts the author's experience of being in Montana, a state not affected by the blackout, and listening to Fox News anchor Sean Hannity report on the power outage over the radio. Klosterman writes: cquote|Mr. Hannity is taking calls from listeners in Manhattan. All the callers are describing the scene like it's Mardi Gras; people seem to be wildly enjoying this blackout. Hannity says everyone should buy bottled water and open their apartment windows. He congratulates the people of New York for remaining calm during this period of hardship, and he salutes them for not looting the stores and initiating a race riot. Christ. We have low standards in this country.

ustained efforts

In Ontario, there is an annual August 14 multi-city commemoration of the occurrence, called Blackout Day, during which citizens are encouraged to maximize their energy conservation activities.

ee also

*"Brittle Power"
*List of power outages


External links

News stories

* [ CBC News] (in-depth feature)
* [ NPR News] (special feature)
* [ Ronda Hauben: Why Was the Blackout So Widespread?] (August 19, 2003)
* [ Dar Al Hayat: Al Qaeda claims responsibility] (August 18, 2003)
* [ San Francisco Chronicle: Chaos theories calculate the vulnerability of megasystems] (August 15, 2003)
* [ BBC: Blackouts cause North America chaos] (August 15, 2003)
* [ CBC: Eastern blackout slowly lifting] (August 15, 2003)
* [ CNN: Major power outage hits New York, other large cities] (August 14, 2003)
* [ CBC: Blackout report blames Ohio utility] (November 19, 2003)
* [ Towering Design Flaws]
* [ USA TODAY: U.S. power grid in better shape 5 years after blackout] (August 12, 2008)

Other links

* [ Coverage and pictures]
* [ Map of outages (requires Flash)]
* [ BBC: Share your experiences]
* [ Blackout History Project]
* [ Nine-Mile Point] and [ Fitzpatrick] reactors (EIA)
* [ US Canada Power System Outage Task Force Final Report]
* [ Blackout Analysis]
* [ NYISO Final Report on the Blackout] February 2005 (PDF)
* [ Blackout Day] The Ontario energy conservation initiative in commemoration of the event.

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