Notable that the cost here is that of keeping your microwave plugged in – to keep the clock running and the touchpad active. The article is a weird mix of "savings" so small as to be irrelevant and "you can insulate your house".
Russell Brown
RNZ at it again "there is an opportunity save money by either showering off peak"
SHOWERING OFF PEAK🤬
"Some microwaves could cost about $14 a year"
$14 a YEAR🤦🏻♂️