| General > General Technical Chat |
| Smart Meters and power factor correction |
| (1/3) > >> |
| 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. |
| Navigation |
| Message Index |
| Next page |