24-06-2019, 12:32 PM
(This post was last modified: 24-06-2019, 12:36 PM by ppppenguin.)
Saw this article today: https://www.theguardian.com/business/201...p-power-uk
The idea of demand side management is hardly new. This paper (behind paywall) is from 1999: https://www.researchgate.net/publication...tic_sector
Calling it a "virtual battery" is a bit excessive as it can't generate on to the grid. Unlike V2G: https://en.wikipedia.org/wiki/Vehicle-to-grid The paper edition has a different and worse headline: "Supermarket fridges 'can act as batteries to boost energy grid' "
Demand side management is a good way of reducing peak demand on the grid. https://en.wikipedia.org/wiki/Load_management "Interruptible tariffs" have been used with some industrial customers: https://www.sciencedirect.com/topics/eng...ble-tariff In general, a willingness to accept short term power outages has a value that can be traded. Usually a lower unit cost of power in return for a willingness to be disconnected at peak load times. This is harder for smaller customers, right down to domestic level. Though Economy 7 is often supplied as guaranteed 7 hours of low cost electicity in the night but not necessarily the same 7 hours or continuously every night. No problem for heating but a nuisance if you run your washing machine overnight to keep down cost.
The idea of a domestic fridge reducing its power usage in response to a drop in grid frequency has been proposed and may even be available. Though in general you're not being rewarded for this sort of DSM. But this approach to demand side management could affect grid stability if widely used: https://arxiv.org/pdf/1703.01195.pdf
The idea of demand side management is hardly new. This paper (behind paywall) is from 1999: https://www.researchgate.net/publication...tic_sector
Calling it a "virtual battery" is a bit excessive as it can't generate on to the grid. Unlike V2G: https://en.wikipedia.org/wiki/Vehicle-to-grid The paper edition has a different and worse headline: "Supermarket fridges 'can act as batteries to boost energy grid' "
Demand side management is a good way of reducing peak demand on the grid. https://en.wikipedia.org/wiki/Load_management "Interruptible tariffs" have been used with some industrial customers: https://www.sciencedirect.com/topics/eng...ble-tariff In general, a willingness to accept short term power outages has a value that can be traded. Usually a lower unit cost of power in return for a willingness to be disconnected at peak load times. This is harder for smaller customers, right down to domestic level. Though Economy 7 is often supplied as guaranteed 7 hours of low cost electicity in the night but not necessarily the same 7 hours or continuously every night. No problem for heating but a nuisance if you run your washing machine overnight to keep down cost.
The idea of a domestic fridge reducing its power usage in response to a drop in grid frequency has been proposed and may even be available. Though in general you're not being rewarded for this sort of DSM. But this approach to demand side management could affect grid stability if widely used: https://arxiv.org/pdf/1703.01195.pdf
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
