Re: Electric bill; what are you paying for? Amps?
I know your electric meter measures kilowatthours (in the USA anyway), and thus, the electric bill is based on that.General Tsao
Yes the meter measures Kilowatt hours including phase angle.
But what is a kilowatthour, and how does it relate to amps (being that amps is actually the electrical current)?General Tsao
Amps mutiply by Volts is watts (or power). Kilowatt is 1000 Watts.
A kilowatt hour is 1 kilowattt for one hour.
Now, if you have an appliance that draws 14 amps power at 110 volts, that same appliance draws 7 amps at 220. volts.General Tsao
Does running a 220 v appliance use less electricity (as it relates to your electric bill)?General Tsao
No. A 1.5 kilowatt kettle uses 1.5 kilowatts regardless of voltage. This ignores small losses due to wire resistance.
The advantage of 220 v is you get 15 A x 220 v for a 15A outlet vs 15A x 110V for a 110V outlet, or twice the power.
Thanks for your thorough response.