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Know when your geyser is on or off

Through a ripple control relay installed in homes the metro can switch off geysers at specific times to control the electricity demand

27 August 2012

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RIPPLE control is still the most common form of load control and is used by the metro to reduce electricity demand during peak periods, thereby decreasing the unit cost of energy and the need for load shedding.  

Through a ripple control relay installed in homes the metro can switch off geysers at specific times to control the electricity demand.

Mr Sam Modiba, metro spokesman, said: "It therefore motivates the customer to shift the operation of geysers into low demand periods. This is one of the effective methods to make sure that load demand does not exceed available capacity."

Combined with other energy efficiency methods, effective ripple control reduces the rate at which customers can be inconvenienced by load shedding.  

Ripple control has the transmission hours programmed to automatically switch on/off the thermal heating appliances (geysers) according to the load management schedule as follows:

Monday to Friday: 7am-10am geyser off.
Monday to Friday: 6pm-8pm geyser off.
Saturday and Sunday: 9am to noon geyser off.


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