Title:
MTP_BNXS41_2008January31
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Description: Everyday domestic electricity demand can be shown as a load profile 1 which peaks
strongly between 4 and 8 pm. Since most power stations cannot be switched on-line
in an instant, energy providers have to be mindful of this peak and keep some fossil
fuelled power stations ‘running’ so that generators can be quickly powered up. The
carbon impact of this ‘spinning reserve’ can be lowered if the peak demand is
reduced. Appliances such as refrigerators, air conditioners and immersion heaters
cycle on and off for much or all of the day, can under DDC operation, be made to
adjust their cycling during periods of high grid load. Their cycling can be moderated
by a matter of seconds or minutes and, if tuned to the demands of the appliance,
does not unduly affect appliance performance.
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