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Load balancing (electrical power) (daily peak demand reserve) refers to the use of various techniques by electrical power stations to store excess electrical power during low demand periods for release as demand rises.[1]
Grid energy storage stores electricity within the transmission grid beyond the customer. Alternatively, the storage can be distributed and involve the customer: for example in storage heaters running off peak tariffs such as Economy 7, or in a vehicle-to-grid system to use storage from electric vehicles during peak times and then replenish it during off peak times. Of course these require incentives for consumers to participate, usually by offering cheaper rates for off peak electricity.
Telephone exchanges often have arrays of batteries in their basements to power equipment[2] and in the past metro systems such as the London Underground had their own power stations[3], not only giving some redundancy but also using the grid for load balancing. Unfortunately today often these supplies of power have been replaced by direct supply from the grid and so are no longer available for the purpose of load balancing.
See also
References
- ^ "Energy Storage Technologies". Energy Storage Association. http://www.electricitystorage.org/technologies.htm. Retrieved 2007-03-11.
- ^ Larsson, B. (15-18 October 1989). IEEE. pp. 9.4/1-9.4/5. doi:.
- ^ "Themes - Power stations". London Transport Museum. http://www.ltmcollection.org/photos/themes/theme_top.html?IXtoptheme=Power+stations. Retrieved 2009-04-26.
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