P
Phil in Melbourne
Guest
I just picked up a MS6115 energy meter from Jaycar.
I went around the house and measured these devices - all on standby. You
may be interested in the results.
Microwave with door closed, showing clock on display 0W
IR activated remote control curtains 0W
Toaster with 7 segment standby indicator 0W
Old dish washer with presumably no standby circuitry 0W
New washing machine 12W
New small-ish TV 12W
7 year old large TV 12W
7 year old DVD player 13W
New DSTB 13W
Around 6 year old DSE soldering iron station 7W (poor design, power switch
is on secondary winding)
Desktop PC 10W
New HP Printer 9W
4 year old HP printer 7W
Wireless router 10W
Cable modem 5W
Laptop with battery fully charged 7W
New fridge with LED panel lit up, compressor not running 0W
That's a total of 117W of 24 hour standby power. That equals 2.808 KWh per
day of power. And our average energy bill for the last quarter..... 8.8KW
average per day.......
So just under ONE THIRD of our total power usage goes towards standby power.
Isn't that crazy?
Another interesting observation is that devices such as the fridge, the
toaster and the microwave all use standby power but the MS6115 is not
sensitive enough to register it.
I have a device that turns off my two monitors and speakers when the PC is
switched off. That would add another 20W easily.
Solution? Turn stuff off at the wall. Will I do it? Probably not.
I will however route the TV, DSTB, DVD player through the amplifier's
auxiliary power output. I will now have to turn on the amplifier when I
watch TV, but it will save a lot of standby power.
I went around the house and measured these devices - all on standby. You
may be interested in the results.
Microwave with door closed, showing clock on display 0W
IR activated remote control curtains 0W
Toaster with 7 segment standby indicator 0W
Old dish washer with presumably no standby circuitry 0W
New washing machine 12W
New small-ish TV 12W
7 year old large TV 12W
7 year old DVD player 13W
New DSTB 13W
Around 6 year old DSE soldering iron station 7W (poor design, power switch
is on secondary winding)
Desktop PC 10W
New HP Printer 9W
4 year old HP printer 7W
Wireless router 10W
Cable modem 5W
Laptop with battery fully charged 7W
New fridge with LED panel lit up, compressor not running 0W
That's a total of 117W of 24 hour standby power. That equals 2.808 KWh per
day of power. And our average energy bill for the last quarter..... 8.8KW
average per day.......
So just under ONE THIRD of our total power usage goes towards standby power.
Isn't that crazy?
Another interesting observation is that devices such as the fridge, the
toaster and the microwave all use standby power but the MS6115 is not
sensitive enough to register it.
I have a device that turns off my two monitors and speakers when the PC is
switched off. That would add another 20W easily.
Solution? Turn stuff off at the wall. Will I do it? Probably not.
I will however route the TV, DSTB, DVD player through the amplifier's
auxiliary power output. I will now have to turn on the amplifier when I
watch TV, but it will save a lot of standby power.