What caused the Northeast blackout of 2003?
The blackout’s proximate cause was a software bug in the alarm system at the control room of FirstEnergy, an Akron, Ohio–based company, which rendered operators unaware of the need to redistribute load after overloaded transmission lines drooped into foliage.
What caused the Northeast blackout of 1965?
The blackout was caused by the tripping of a 230-kilovolt transmission line near Ontario, Canada, at 5:16 p.m., which caused several other heavily loaded lines also to fail.
What year did the East Coast lose power?
A major outage knocked out power across the eastern United States and parts of Canada on August 14, 2003. Beginning at 4:10 p.m. ET, 21 power plants shut down in just three minutes. Fifty million people were affected, including residents of New York, Cleveland and Detroit, as well as Toronto and Ottawa, Canada.
What caused the New York City blackout of 1977?
The 25-hour outage began around 9:30 p.m. on July 13th, after a bolt of lightning struck an electrical substation in Westchester. Not long after, another lightning strike took out two more power lines, and when the Ravenswood 3 power plant in Queens went down, the city fell dark.
What was the biggest power outage?
More than 50 million people in Ontario and the northeastern United States experienced the largest power outage in the history of North America on August 14, 2003.
How much did the 2003 blackout cost?
Overtaxed, they cut out by 4:05 P.M., tripping a cascade of failures throughout southeastern Canada and eight northeastern states. All told, 50 million people lost power for up to two days in the biggest blackout in North American history. The event contributed to at least 11 deaths and cost an estimated $6 billion.
How did the collapse of the Soviet Union change the world?
The collapse of the Soviet Union in December 1991 changed the world s geopolitical balance. When the Soviet Union fell, it ended the tenure of a superpower with the resources of more than a dozen countries.
What happened to the New York power grid?
According to the New York Independent System Operator ( NYISO) – the ISO responsible for managing the New York state power grid – a 3,500 megawatt power surge (towards Ontario) affected the transmission grid at 4:10:39 p.m. EDT.
What happened to the Soviet Union in 1991?
The unsuccessful August 1991 coup against Gorbachev sealed the fate of the Soviet Union. Planned by hard-line Communists, the coup diminished Gorbachev’s power and propelled Yeltsin and the democratic forces to the forefront of Soviet and Russian politics.
What happened to the Soviet Union in the late 1980s?
A severe economic contraction characterized the late 1980s and early 1990s, which would be the last years of the Soviet Union. 2 Soviet leaders no longer had the power to intervene amidst the growing economic chaos.