Wednesday, 9 March 2016

The 7 biggest electrical blackouts in history

Majority of the world’s worst blackouts occurred because of technical faults and human errors, but natural disasters have also taken their toll.  Don't let power failures affect your home or business! Off Grid has a wide variety of back up power solutions, from UPS devices to power banks. Here are the 7 biggest power failures that have happened around the world:


It took months before the real cause of the Northeast Blackout of 2003 was finally determined. What actually happened was a high-voltage power line in Northern Ohio brushed against overgrown trees, causing it to shut down. When the alarm system failed, the incident was ignored. In the next 90 minutes, system operators tried to figure out what happened while three other lines switched off as a consequence of the first line's failure.

50 million people were inconvenienced for up to two days in what turned out to be the biggest blackout in North American history. 11 people died and there was a reported $6 billion in damages. The incident prompted the creation of a joint task force between the U.S. and Canada to minimise future blackouts.


Italy's 2003 blackout affected almost all of the country's 57 million people. Usually a middle-of-the-night power outage means that few people will notice it. However, this event occurred during the early morning hours after an all-night arts festival. Because of this, trains were still running at 3:01 a.m. when a fault on the Swiss power system caused the overloading of two internal lines near to the Italian border. About 110 trains carrying more than 30,000 passengers were stranded as a result.


At 10:23 a.m. on a Thursday morning, a failure in a 500 kilovolt transmission line between Cilegon and Saguling in West Java cut electricity supplies, leading to a massive 5,000 megawatt shutdown. Jakarta, lost power, and half of the Indonesian population — 100 million people — were without electricity for almost 11 hours.


When German power company switched off a high-voltage line across the River Ems in order to let a cruise ship pass, 10-15 million Europeans lost power. The company said that the problems began in north-western Germany when its network became overloaded, possibly due to that manual switch off (although transmission lines had been shut down in the past without incident). The blackouts stopped trains in Germany and trapped dozens of people in elevators in France and Italy. Austria, Belgium, and Spain were also affected by the outage.


Winter storms resulted in a nearly two-week blackout for 4.6 million people around the central Chinese city of Chenzhou. Frustratingly, many citizens were without power during Chinese New Year celebrations. Some residents told reporters that they had to walk one kilometre to a well and back in freezing temperatures just to procure water. The official Xinhua News Agency said 11 electricians died while working to restore power, and the storm's death toll exceeded 60.


When a hydroelectric dam on the Paraguay-Brazil border suddenly stopped producing 17,000 megawatts of power, outages quickly spread through both countries. Suspiciously, the blackouts came two days after 60 Minutes reported that previous Brazilian power outages were caused by hackers. The CBS news magazine would later report that the 2009 incident was also the work of hackers.


In the largest electrical outage in history (so far), the July 31st blackout of India affected an area encompassing about 670 million people, which is around 9% of the world’s population. On the 31st, three of the country’s interconnected northern power grids collapsed for several hours, affecting 22 states from the country's Eastern border with Myanmar to its western border with Pakistan.


Don’t let blackouts ever affect you – contact Off Grid today and purchase a backup power solution today!

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