Talk:Load control switch
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Reality check.
[edit]or reduce power to the appliance during times of peak electrical demand.
This is simply not possible since the power mains provides Voltage not power. So, unless you have a smart grid enabled appliance, it is only possible to cut the RMS Voltage with a device similar to a light dimmer. This would work only on resistance heating devices. I note that if the device in question has a (electronic) power supply, that this would not reduce the power used since that power supply would respond by drawing more current.
I know of only one home appliance where this would work without modification of the device and that is a conventional electric water heater (tank with resistance heating elements). However, with a conventional electric water heater, it appears to me that a better alternative is to turn the bottom element off an on. Still, this is going to mean that the water isn't going to heat as fast -- slower recovery -- and customers really need a larger (tank capacity) water heater to cope with this.
Might I make a suggestion: you need Electrical (and other) Engineers to fact check energy articles.
Tyrerj (talk) 18:05, 2 January 2011 (UTC)
File:Dryer with smart load control switch.jpg Nominated for speedy Deletion
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