Hot water load control to begin
Horizon Networks is about to start controlling household hot water heaters.
They're likely to be turned off on cold days - generally between 7.30 and 9.30am and again between 5.30 and 8.30pm.
Horizon says turning off water heaters during peak times - helps reduce the amount of peak electricity used. They can then be heated at non-peak times - rather than when power is being used to cook meals and heat homes.
By managing peak demand, the network says national grid transmission charges can be reduced - and these savings are passed on to customers.
Without load control, household power bills could rise by more than 200 dollars a year.
Following a load control period, it may take time for the hot water cylinder to get back to temperature - and if a lot of hot water is used during this time you could run out.