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Economy 10

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Title: Economy 10  
Author: World Heritage Encyclopedia
Language: English
Subject: Economy 7, Energy in the United Kingdom, Radio teleswitch, Open-pit coal mining in the United Kingdom, Melrose Resources
Collection: Electric Power in the United Kingdom
Publisher: World Heritage Encyclopedia

Economy 10

Economy 10 is the name of a tariff provided by United Kingdom electricity suppliers created in 2004. Similar to the Economy 7 this is designed to be used with high thermal mass heating such as storage heaters, underfloor heating, and is also used with electrical boilers driving radiators or water-based heat stores.

In contrast to Economy 7, which only provides off-peak electricity during night time hours, Economy 10 tariffs provide 10 hours of off peak heating split between night, afternoon and evening. The advantage of this scheme is that by matching the storage periods better to the times when heat is required, less heat needs to be stored during the day, when there may be no demand for heating. The afternoon and evening periods also provide a top-up to heating systems at off-peak prices.

Off-peak electricity costs can be half of peak prices, but many Economy 10 tariffs levy an increased standing daily charge.

The structure of the 10 off peak hours is determined by your local distribution network operator (i.e. the company which manages the physical wires in the streets around your house, rather than the electricity supply company, who are the ones with their name at the top of the bill) and they vary across the 14 regions in the UK. Times are switched automatically, and its common for the switching times to be locked to either GMT or BST when the meter is installed. Some metering systems use a radio teleswitch controlled by the supplier to vary switching times, and effect the Daylight Saving Time switchover twice a year. Economy 10 thus requires a special multi-tariff meter, different from an Economy 7 meter.

For example, customers in central Scotland (within the Scottish Power Energy Networks DNO area) are on the following times:

  • 3 hours in the afternoon (1.30pm - 4.30pm)
  • 4 hours in the evening (8.30pm - 12.30am)
  • 3 hours in early morning (4.30am - 7.30am)

Another set of times (location unknown) are:

  • 3 hours in the afternoon (1pm - 4pm)
  • 2 hours in the evening (8pm - 10pm)
  • 5 hours overnight (Midnight - 5am)

See also


External links

  • UK Power information on Economy 10 tariffs
  • Independent consumer advice on the Economy 10 tariff

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