2005 Java–Bali blackout: Difference between revisions

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{{Short description|2005 power outage across Java and Bali, Indonesia}}

{{update|date=August 2012}}

{{Use dmy dates|date=MarchDecember 20122022}}

[[File:2005 Java–Bali blackout.png|thumb|300px|Provinces affected by the blackout. Not all areas within the political borders are affected.]]

The '''2005 Java–Bali Blackout''' was a [[power outage]] across [[Java]] and [[Bali]] on 18 August 2005, affecting some 100 million people.<ref>{{cite web|url=http://www.ft.com/cms/s/0/bffd3f32-1044-11da-bd5c-00000e2511c8.html?nclick_check=1|title=Indonesian outage leaves 100m without electricity|last=Donnan|first=Shawn |date=19 August 2005|work=Financial Times|accessdat___location=London|accessdate=21 June 2009}}</ref>

==Impact==

==Immediate impact==

Power went off at around 10:23&nbsp;am ([[UTC]]+7) on 18 August 2005 across most areas of the two islands. [[Jakarta]] lost power completely, along with [[Banten]] and [[Special Region of Yogyakarta]]; there were blackouts in parts of [[Central Java]], along with parts of both [[West Java]] and [[East Java]].<ref name=massive /> Power resumed in most areas of Jakarta at about 5:00&nbsp;pm (UTC+7) on the same day.

==Cause==

Prior to the blackout, the Jakarta area was importing about 21% of its power needs.<ref name=overview>{{cite conference|title=An analysis of large-scale transmission power blackouts from 2005 to 2016|first1=Maxime|last1=Velay|first2=Meritxell|last2=Vinyals|first3=Yvon|last3=Besanger|first4=Nicolas|last4=Retière|conference=53rd International Universities Power Engineering Conference|date=Sep 2018|___location=Glasgow|page=8541901|doi=10.1109/UPEC.2018.8541901 |id={{HAL|hal-02330748}}|url=https://hal.archives-ouvertes.fr/hal-02330748/file/article_MaximeVelay_IEEE.pdf}}</ref>

A transmission line between [[Cilegon]] and Saguling, both in [[West Java]], failed at 10:23&nbsp;am local time; this led to a [[cascading failure]] that shut down two units of the [[Paiton]] plant in [[East Java]] and six units of the Suralaya plant in [[West Java]]<ref name=massive>[http://www.thejakartapost.com/news/2005/08/19/massive-blackout-hits-java-bali.html "Massive blackout hits Java, Bali"]. ''The Jakarta Post'', 19 August 2005, 11:16&nbsp;am; retrieved 19 February (Eastern Standard Time) or 20 (Indonesian time), 2009.</ref>

A transmission line between [[Cilegon]] and [[Saguling]], both in [[West Java]], failed at 10:23&nbsp;am local time;.<ref name=massive/> The devices protecting the system misoperated, sending incorrect signals to [[Suralaya Power Station]].<ref name=overview/> thisThis led to a [[cascading failure]] that shut down two units of the [[Paiton Power Station]] plant in [[East Java]] and six units of theat Suralaya plant in [[West Java]].<ref name=massive>[http://www.thejakartapost.com/news/2005/08/19/massive-blackout-hits-java-bali.html "Massive blackout hits Java, Bali"] {{Webarchive|url=https://web.archive.org/web/20090501130458/http://www.thejakartapost.com/news/2005/08/19/massive-blackout-hits-java-bali.html |date=1 May 2009 }}. ''The Jakarta Post'', 19 August 2005, 11:16&nbsp;am; retrieved 19 February (Eastern Standard Time) or 20 (Indonesian time), 2009.</ref>

[[Perusahaan Listrik Negara|PT. PLN]], the state-owned electricity company, confirmed that the electricity grid failed at several points throughout Java and the neighbouring island of [[Bali]], causing a supply shortfall of 2,700 [[Megawatt|MW]], roughly half of the original supply.{{Citation needed|date=January 2009}}

[[Jakarta]] lost power completely, along with [[Banten]]; there were blackouts in parts of [[Central Java]], along with parts of both [[West Java]] and [[East Java]].<ref name=massive />

==Effects==

Due to the sudden supply shortfall, power went out in most areas of Java, including all parts of the capital and largest city in Indonesia, Jakarta. Other major cities in Java, such as [[Surabaya]], were also affected.

==Restoration of service==

Power resumed in most areas of Jakarta at about 5:00&nbsp;pm (UTC+7) on the same day.

==Post-blackout==

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{{DEFAULTSORT:2005 Java-Bali blackout}}

[[Category:ElectricPower poweroutages in Indonesia]]

[[Category:Electric power blackouts|Java, 2005]]

[[Category:2005 in Indonesia|Java-bali Blackout, 2005]]

[[Category:2005 in economicseconomic history|Java-bali Blackout, 2005]]

[[Category:August 2005 in Indonesia]]

[[Category:2005 in technology]]