On Tuesday, 7 March 2017 17:03:39 UTC, Andy Burns wrote:
whisky-dave wrote:

Steve Walker wrote:

lab tests of a number of different types of meter have
shown overreading by smart meters when led lighting or dimmer switches
are used

Is that due to 'noise' and communication as the last excuse I heard
years ago even before smart meters was because switched mode PSUs and
computers were out of phase so recorded less usage so they had to
increase the VA count .

I thought for domestic supplies, you were charged for watts, not
volt.amps, so the power factor is not your concern?

Difference between what you're supplied and what readings the meter gives.
If they were exactly out of phase you'd get say 0V at 13amps and 240V at 0 amps
So no power used.