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Smart Meters and power factor correction
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tttonyyy:
Someone here might know this - do Smart Meters correct for power factor?

For example, I have a microwave that (at standby) draws 163mA @ 240V which sounds like 39W (ouch - expensive way to run a front panel clock).  But the power factor is 0.02.

Will my snazzy EDMI ES-10B smart meter be billing me for 39W or 1W?
jonpaul:
Utility billed energy is measured in kWh, the meters are quite précis.

The stand-by power of all connected devices will add up, and PF be ~ 0.5..07.

By national regulations electronic devices over a certain wattage must be PFC.

Check applicable regulations in your area, eg IEC in EU.

bon chance

j
tttonyyy:
According to the datasheet here: https://www.edmi-meters.com/wordpress/wp-content/uploads/2018/05/ES-10B-Factsheet-English.pdf


--- Quote ---Measured Values
• Active energy import (Wh)
• Reactive energy import (varh)

--- End quote ---

It sounds as though "old" induction-disc meters that only measure real power (that in phase with voltage) would not charge for reactive loading, but that may not be true of Smart Meters.
jonpaul:
check out the smart meter spec sheet and metering regulations applicable in your area

All meters that affect the rates and electrical bill of utilities are tightly regulated

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/381535/SMIP_E2E_SMETS2.pdf



Large industrial distribution ovrr 50...250 kva, have utiliy surcharge for excessive VARs, hence PFC capacitor  banks

j
wraper:
Residential meters don't.
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