Power cut - Revision history

Designing Buildings at 07:11, 13 December 2022

2022-12-13T07:11:16Z

← Older revision		Revision as of 07:11, 13 December 2022
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	[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]		[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]

−	A power cut, loss or interruption of supply and blackout all refer to an event ~~relating to~~ a planned or unplanned break in the supply of electricity to ~~different regions~~, ~~areas~~, or ~~buildings~~. Such events can be localised and unplanned, effecting single or groups of dwellings when supply cables or pylons are damaged or if centralised infrastructure is damaged ~~the power cut~~ may affect ~~whole~~ areas~~, towns or even regions, such events~~ may also be a planned strategy of supply.	+	= What is a power cut? =
		+
		+	Power cut, loss or interruption of supply and blackout all refer to an event in which there is a planned or unplanned break in the supply of electricity to a region, area, or building. Such events can be localised and unplanned, effecting single or groups of dwellings, such as when supply cables or pylons are damaged, or if centralised infrastructure is damaged they may affect large areas. They may also be a planned strategy of supply.

	= Damaged systems =		= Damaged systems =

−	Power cuts were quite common during the second world war in London and other towns due to ~~damaged~~ inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia ~~for the same reasons and~~ as part of strategic military action. New York ~~has been~~ affected by a number of blackouts in 1965, 1977 and in 2003, caused by component and software failures, whilst the blackout of 1977 was caused by a lighting ~~strike lightning~~ strike at Buchanan South, ~~caused~~ a blackout across the whole city which led to criminal activity including looting ~~across the city~~. In the UK during 2015 and 2016 storm Frank, lead to damage and flooding ~~which led to over~~ 40,000 homes ~~to be~~ without power.	+	Power cuts were quite common during the second world war in London and other towns due to damage inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia as part of strategic military action. New York was affected by a number of blackouts in 1965, 1977 and in 2003, caused by component and software failures, whilst the blackout of 1977 was caused by a lighting strike at Buchanan South, resulting in a blackout across the whole city which led to criminal activity including looting. In the UK during 2015 and 2016, storm Frank lead to damage and flooding leaving 40,000 homes without power.

	= Planned reductions =		= Planned reductions =

−	In some cases power cuts ~~maybe~~ planned ~~and instigated~~ by electricity supplier or by the national grid as a way of managing supply, where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, ~~causes increased heating~~ or ~~cooling demands but also if~~ fuel supplies ~~drop~~.	+	In some cases power cuts may be planned by an electricity supplier or by the national grid as a way of managing supply, where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, or problems with fuel supplies.

−	In February of 1972 the Central Electricity Generating Board in the UK told its consumers that some households would see power cuts lasting up to nine-hours, as a result of miners strikes across the country leading to a dramatic reduction in coal available for power stations. A three day week was later introduced between December 1973 and March the following year, which was planned to limit the consumption of energy by commercial users. who were limited to only using three days worth of energy ~~per~~ week. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 ~~as well as~~ 2004 and in many other countries blackouts are a ~~regular~~ daily occurrence.	+	In February of 1972 the Central Electricity Generating Board in the UK told its consumers that some households would see power cuts lasting up to nine-hours, as a result of miners strikes across the country leading to a dramatic reduction in coal available for power stations. A three day week was later introduced between December 1973 and March the following year, which was planned to limit the consumption of energy by commercial users, who were limited to only using three days worth of energy a week. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 and 2004 and in many other countries blackouts are a daily occurrence.

	= Today's grid =		= Today's grid =

−	During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient ~~due to the disruption of the war in Ukraine~~.	+	During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient.

−	= Common reasons =	+	= Common reasons for power cuts =

−	~~The~~ most common reasons for power cuts, outages and blackouts	+	Some of the most common reasons for power cuts, outages and blackouts are set out below:

−	# Storms: Extreme weather such as storms, heat waves, snowfall and ice as well as rainfall and flooding are ~~normally~~ the most common causes of widespread power outages. Lightning strikes on electrical equipment, transmission towers, wires and poles can lead to outages in grid systems.	+	# Storms: Extreme weather such as storms, heat waves, snowfall and ice as well as rainfall and flooding are the most common causes of widespread power outages. Lightning strikes on electrical equipment, transmission towers, wires and poles can also lead to outages in grid systems.
−	# Damage: Fallen trees (from extreme storms), human error (such as road works), as well as sabotage (during war ~~times~~), accidents ( such as vehicle collisions), wildlife can also on occasions cause damage to cables.	+	# Damage: Fallen trees (from extreme storms), human error (such as road works), as well as sabotage (during war), accidents ( such as vehicle collisions), and wildlife can also on occasions cause damage to cables.
−	# Earthquakes: Relatively rare in the UK but in many parts of the world earthquakes can disturb ~~aswell as~~ damage electrical facilities, power lines and supplies.	+	# Earthquakes: Relatively rare in the UK but in many parts of the world earthquakes can disturb and damage electrical facilities, power lines and supplies.
−	# Demand outstrips supply: Heat waves or dark cold snaps can ~~overburdened~~ electrical systems leading to unintentional as well as intentional outages. This may become more common if there are supply issues ~~which lead to it being more common for demand to outstrip supply~~.	+	# Demand outstrips supply: Heat waves or dark cold snaps can overburden electrical systems leading to unintentional as well as intentional outages. This may become more common if there are long term supply issues.

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Editor at 08:12, 12 December 2022

2022-12-12T08:12:29Z

← Older revision		Revision as of 08:12, 12 December 2022
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	A power cut, loss or interruption of supply and blackout all refer to an event relating to a planned or unplanned break in the supply of electricity to different regions, areas, or buildings. Such events can be localised and unplanned, effecting single or groups of dwellings when supply cables or pylons are damaged or if centralised infrastructure is damaged the power cut may affect whole areas, towns or even regions, such events may also be a planned strategy of supply.		A power cut, loss or interruption of supply and blackout all refer to an event relating to a planned or unplanned break in the supply of electricity to different regions, areas, or buildings. Such events can be localised and unplanned, effecting single or groups of dwellings when supply cables or pylons are damaged or if centralised infrastructure is damaged the power cut may affect whole areas, towns or even regions, such events may also be a planned strategy of supply.
		+
		+	= Damaged systems =

	Power cuts were quite common during the second world war in London and other towns due to damaged inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia for the same reasons and as part of strategic military action. New York has been affected by a number of blackouts in 1965, 1977 and in 2003, caused by component and software failures, whilst the blackout of 1977 was caused by a lighting strike lightning strike at Buchanan South, caused a blackout across the whole city which led to criminal activity including looting across the city. In the UK during 2015 and 2016 storm Frank, lead to damage and flooding which led to over 40,000 homes to be without power.		Power cuts were quite common during the second world war in London and other towns due to damaged inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia for the same reasons and as part of strategic military action. New York has been affected by a number of blackouts in 1965, 1977 and in 2003, caused by component and software failures, whilst the blackout of 1977 was caused by a lighting strike lightning strike at Buchanan South, caused a blackout across the whole city which led to criminal activity including looting across the city. In the UK during 2015 and 2016 storm Frank, lead to damage and flooding which led to over 40,000 homes to be without power.
		+
		+	= Planned reductions =

	In some cases power cuts maybe planned and instigated by electricity supplier or by the national grid as a way of managing supply, where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, causes increased heating or cooling demands but also if fuel supplies drop.		In some cases power cuts maybe planned and instigated by electricity supplier or by the national grid as a way of managing supply, where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, causes increased heating or cooling demands but also if fuel supplies drop.

−	In February of 1972 the Central Electricity Generating Board in the UK told its consumers that some households would see power cuts lasting up to nine-hours, as a result of miners strikes across the country leading to a dramatic reduction in coal available for power stations. A three day week was later introduced between December 1973 and March the following year, which was planned to limit the consumption of energy by commercial users. who were limited to only using three days worth of energy per week. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily ~~occurance~~.	+	In February of 1972 the Central Electricity Generating Board in the UK told its consumers that some households would see power cuts lasting up to nine-hours, as a result of miners strikes across the country leading to a dramatic reduction in coal available for power stations. A three day week was later introduced between December 1973 and March the following year, which was planned to limit the consumption of energy by commercial users. who were limited to only using three days worth of energy per week. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily occurrence.
		+
		+	= Today's grid =

	During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.		During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.
		+
		+	= Common reasons =

	The most common reasons for power cuts, outages and blackouts		The most common reasons for power cuts, outages and blackouts
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	* Micro-grids.		* Micro-grids.
	* Power generation.		* Power generation.
		+	* Power surge.
	* Substation.		* Substation.
		+	* TV pickup.
	* Uninterrupted power supply for buildings.		* Uninterrupted power supply for buildings.
	* Voltage.		* Voltage.

Editor at 08:53, 11 December 2022

2022-12-11T08:53:16Z

← Older revision		Revision as of 08:53, 11 December 2022
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	[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]		[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]

−	A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised and unplanned, effecting single or groups of dwellings when supply cables or pylons are damaged or ~~disturbed,~~ if centralised infrastructure is damaged ~~in the same way~~ the power cut may affect whole areas, towns or even regions~~. In some cases power cuts maybe~~ planned ~~and instigated by electricity supplier or by the national grid as a way~~ of ~~managing~~ supply where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, causes increased heating or cooling demands.	+	A power cut, loss or interruption of supply and blackout all refer to an event relating to a planned or unplanned break in the supply of electricity to different regions, areas, or buildings. Such events can be localised and unplanned, effecting single or groups of dwellings when supply cables or pylons are damaged or if centralised infrastructure is damaged the power cut may affect whole areas, towns or even regions, such events may also be a planned strategy of supply.

−	Power cuts were quite common during the second world war in London and other towns due to damaged inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia for the same reasons and as part of strategic military action. ~~they can also be carried out as intentional pauses on~~ the ~~grid systems~~ during ~~high peak demand times~~.	+	Power cuts were quite common during the second world war in London and other towns due to damaged inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia for the same reasons and as part of strategic military action. New York has been affected by a number of blackouts in 1965, 1977 and in 2003, caused by component and software failures, whilst the blackout of 1977 was caused by a lighting strike lightning strike at Buchanan South, caused a blackout across the whole city which led to criminal activity including looting across the city. In the UK during 2015 and 2016 storm Frank, lead to damage and flooding which led to over 40,000 homes to be without power.

−	~~During~~ the ~~1970s~~ a three day week was introduced between December 1973 and March the following year, ~~this~~ was a planned ~~limiting of the grid~~ to limit the consumption of energy ~~supplies for~~ commercial users. who were limited to only using three days worth of energy per week~~. The year prior during the February of 1972 the Central Electricity Generating Board told its consumers that some households would see power cuts lasting up to nine-hours~~. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily occurance.	+	In some cases power cuts maybe planned and instigated by electricity supplier or by the national grid as a way of managing supply, where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, causes increased heating or cooling demands but also if fuel supplies drop.
		+
		+	In February of 1972 the Central Electricity Generating Board in the UK told its consumers that some households would see power cuts lasting up to nine-hours, as a result of miners strikes across the country leading to a dramatic reduction in coal available for power stations. A three day week was later introduced between December 1973 and March the following year, which was planned to limit the consumption of energy by commercial users. who were limited to only using three days worth of energy per week. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily occurance.

	During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.		During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.

Editor at 07:51, 11 December 2022

2022-12-11T07:51:58Z

← Older revision		Revision as of 07:51, 11 December 2022
Line 1:		Line 1:
	[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]		[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]

−	A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised ~~when~~ single supply cables or pylons are damaged ~~for example by falling trees, vehicle collisions~~ or ~~lightning~~, as ~~such they~~ can ~~effect supplies to single dwellings~~, ~~areas~~ or ~~towns and more rarely regions~~.	+	A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised and unplanned, effecting single or groups of dwellings when supply cables or pylons are damaged or disturbed, if centralised infrastructure is damaged in the same way the power cut may affect whole areas, towns or even regions. In some cases power cuts maybe planned and instigated by electricity supplier or by the national grid as a way of managing supply where demands peaks or where demand outstrips supply. This can result from a number of different causes but common circumstances might be extreme weather events or temperatures, causes increased heating or cooling demands.

−	It is also possible that blackouts or power cuts occur as a result of high demand on the grid as certain times, such as during periods of extremely high or low temperatures due to increased demands on cooling or heating. Such power cuts were quite common during the second world war in London and other towns due to damaged infrastructure and more recently ~~during~~ the ~~Ukraine~~ war, they can also be carried out as intentional pauses on the grid systems during high peak demand times.	+	Power cuts were quite common during the second world war in London and other towns due to damaged inflicted on infrastructure and more recently in certain areas of Ukraine as a result of the war with Russia for the same reasons and as part of strategic military action. they can also be carried out as intentional pauses on the grid systems during high peak demand times.

−	During the 1970s a three day week was introduced between December 1973 and March the following year, this was a planned limiting of the grid to limit the consumption of energy supplies for commercial users. who were limited to only using three days worth of energy per week. The year prior during the February of 1972 the Central Electricity Generating Board told its consumers that some households would see power cuts lasting up to nine-hours. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily ~~occurence~~.	+	During the 1970s a three day week was introduced between December 1973 and March the following year, this was a planned limiting of the grid to limit the consumption of energy supplies for commercial users. who were limited to only using three days worth of energy per week. The year prior during the February of 1972 the Central Electricity Generating Board told its consumers that some households would see power cuts lasting up to nine-hours. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily occurance.

	During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.		During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.
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	# Storms: Extreme weather such as storms, heat waves, snowfall and ice as well as rainfall and flooding are normally the most common causes of widespread power outages. Lightning strikes on electrical equipment, transmission towers, wires and poles can lead to outages in grid systems.		# Storms: Extreme weather such as storms, heat waves, snowfall and ice as well as rainfall and flooding are normally the most common causes of widespread power outages. Lightning strikes on electrical equipment, transmission towers, wires and poles can lead to outages in grid systems.
	# Damage: Fallen trees (from extreme storms), human error (such as road works), as well as sabotage (during war times), accidents ( such as vehicle collisions), wildlife can also on occasions cause damage to cables.		# Damage: Fallen trees (from extreme storms), human error (such as road works), as well as sabotage (during war times), accidents ( such as vehicle collisions), wildlife can also on occasions cause damage to cables.
−	# Earthquakes: ~~Relatovely~~ rare in the UK but in many parts of the world earthquakes can disturb aswell as damage electrical facilities, power lines and supplies.	+	# Earthquakes: Relatively rare in the UK but in many parts of the world earthquakes can disturb aswell as damage electrical facilities, power lines and supplies.
	# Demand outstrips supply: Heat waves or dark cold snaps can overburdened electrical systems leading to unintentional as well as intentional outages. This may become more common if there are supply issues which lead to it being more common for demand to outstrip supply.		# Demand outstrips supply: Heat waves or dark cold snaps can overburdened electrical systems leading to unintentional as well as intentional outages. This may become more common if there are supply issues which lead to it being more common for demand to outstrip supply.

Editor at 07:02, 11 December 2022

2022-12-11T07:02:06Z

← Older revision		Revision as of 07:02, 11 December 2022
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−	[[File:~~Blackout banner~~.jpg]]	+	[[File:Blackout_banner.jpg\|link=File:Blackout_banner.jpg]]

	A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised when single supply cables or pylons are damaged for example by falling trees, vehicle collisions or lightning, as such they can effect supplies to single dwellings, areas or towns and more rarely regions.		A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised when single supply cables or pylons are damaged for example by falling trees, vehicle collisions or lightning, as such they can effect supplies to single dwellings, areas or towns and more rarely regions.

Editor at 07:01, 11 December 2022

2022-12-11T07:01:20Z

← Older revision		Revision as of 07:01, 11 December 2022
Line 1:		Line 1:
		+	[[File:Blackout banner.jpg]]
		+
	A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised when single supply cables or pylons are damaged for example by falling trees, vehicle collisions or lightning, as such they can effect supplies to single dwellings, areas or towns and more rarely regions.		A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised when single supply cables or pylons are damaged for example by falling trees, vehicle collisions or lightning, as such they can effect supplies to single dwellings, areas or towns and more rarely regions.

Editor at 11:41, 9 December 2022

2022-12-09T11:41:30Z

← Older revision		Revision as of 11:41, 9 December 2022
Line 2:		Line 2:

	It is also possible that blackouts or power cuts occur as a result of high demand on the grid as certain times, such as during periods of extremely high or low temperatures due to increased demands on cooling or heating. Such power cuts were quite common during the second world war in London and other towns due to damaged infrastructure and more recently during the Ukraine war, they can also be carried out as intentional pauses on the grid systems during high peak demand times.		It is also possible that blackouts or power cuts occur as a result of high demand on the grid as certain times, such as during periods of extremely high or low temperatures due to increased demands on cooling or heating. Such power cuts were quite common during the second world war in London and other towns due to damaged infrastructure and more recently during the Ukraine war, they can also be carried out as intentional pauses on the grid systems during high peak demand times.
		+
		+	During the 1970s a three day week was introduced between December 1973 and March the following year, this was a planned limiting of the grid to limit the consumption of energy supplies for commercial users. who were limited to only using three days worth of energy per week. The year prior during the February of 1972 the Central Electricity Generating Board told its consumers that some households would see power cuts lasting up to nine-hours. Other countries have experienced blackouts such as the US and Canada for 2 days in 2003 as well as 2004 and in many other countries blackouts are a regular daily occurence.

	During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.		During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.

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2022-12-09T11:26:33Z

Created page with "A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be..."

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A power cut, loss or interruption of supply and blackout all refer to an event relating to the supply of electricity to different regions, areas, or buildings. Such events can be localised when single supply cables or pylons are damaged for example by falling trees, vehicle collisions or lightning, as such they can effect supplies to single dwellings, areas or towns and more rarely regions.

It is also possible that blackouts or power cuts occur as a result of high demand on the grid as certain times, such as during periods of extremely high or low temperatures due to increased demands on cooling or heating. Such power cuts were quite common during the second world war in London and other towns due to damaged infrastructure and more recently during the Ukraine war, they can also be carried out as intentional pauses on the grid systems during high peak demand times.

During the Financial Times’s Energy Transition Summit in 2022, John Pettigrew head of the National Grid warned British households that blackouts may be imposed between 4pm and 7pm on “really, really cold” winter weekdays if European gas exports were cut. The comments came after the National Grid set out several “unlikely” scenarios in which Britain would run low on supplies but noted that it had not changed its “base case” and there would be sufficient gas and power to meet demand in Britain this winter. Pettigrew said “In the context of the terrible things that are going on in Ukraine and the consequences of that [it was] right that we set out what some of the potential risks could be”, he noted that electricity and gas may be switched off on “those deepest, darkest evenings in January and February” if energy supplies from Europe prove insufficient due to the disruption of the war in Ukraine.

The most common reasons for power cuts, outages and blackouts

# Storms: Extreme weather such as storms, heat waves, snowfall and ice as well as rainfall and flooding are normally the most common causes of widespread power outages. Lightning strikes on electrical equipment, transmission towers, wires and poles can lead to outages in grid systems.
# Damage: Fallen trees (from extreme storms), human error (such as road works), as well as sabotage (during war times), accidents ( such as vehicle collisions), wildlife can also on occasions cause damage to cables.
# Earthquakes: Relatovely rare in the UK but in many parts of the world earthquakes can disturb aswell as damage electrical facilities, power lines and supplies.
# Demand outstrips supply: Heat waves or dark cold snaps can overburdened electrical systems leading to unintentional as well as intentional outages. This may become more common if there are supply issues which lead to it being more common for demand to outstrip supply.

= Related articles on Designing Buildings =

* Alternating current and direct current
* Ampere.
* Battery storage.
* Community energy network.
* Electrical power.
* Electricity supply.
* Energy.
* Energy consumption.
* Energy storage.
* Kilowatt hour.
* Micro-grids.
* Power generation.
* Substation.
* Uninterrupted power supply for buildings.
* Voltage.
* Watt.

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