gar
Senior Member
- Location
- Ann Arbor, Michigan
- Occupation
- EE
120126-1222 EST
Iceman:
As soon as you see the words "power factor" in combination with residential and saving money, then you should see a RED FLAG.
In almost every instance the result will be a 0 kWh saving. And actually a negative financial return because of the cost of the device and installation.
To have any possibility of a saving, then there would need to be a long cable from the meter to the main panel. Also you have the problem that the PFC capacitor is always connected. If there are no inductive loads being compensated by the capacitor, then the capacitor is itself creating a bad power factor.
Also consider that there are two types of bad power factor, displacement and distortion. A distortion type bad power factor can not be corrected by a simple parallel capacitor.
.
Iceman:
As soon as you see the words "power factor" in combination with residential and saving money, then you should see a RED FLAG.
In almost every instance the result will be a 0 kWh saving. And actually a negative financial return because of the cost of the device and installation.
To have any possibility of a saving, then there would need to be a long cable from the meter to the main panel. Also you have the problem that the PFC capacitor is always connected. If there are no inductive loads being compensated by the capacitor, then the capacitor is itself creating a bad power factor.
Also consider that there are two types of bad power factor, displacement and distortion. A distortion type bad power factor can not be corrected by a simple parallel capacitor.
.