Fortunately they typical residential customer is not charged for poor power factor so regardless of having PFC of .2 or 1 the customer does not pay any difference in cost.
Now that said going from a typical 85% PF to a 99% PF on a lighting system that uses 1/5 the power again doesn't add up to squat in I/R2 losses.
Try the math yourself.
Say I have a large incandescent lighting load in my home that takes 2400 watts on a 120 VAC service. Thats 20 amps at a PF of 1 being it's pure resistive load.
Now I change that out oto LED that uses 1/5th the power but at a PF of .85. So from that I am now drawing roughly ~4.7 amps.
On my first incandescent lighting system I had .1 ohms of line resistance in the lighting circuit leaving me with a 2 volt at 20 amps load loss or 40 watts line loses.
Now on the LED system I still have the .1 ohm line resistance which at 4.7 amps gives me a .47 volt at 4.7 amp loss or about 2.3 watts loss.
Now going with your .99 PF lighting system over my.85 PF system you now drop my losses to .4 volts at 4 amps or 1.6 watts saving me a whole .7 watts per hour.
Given my present cost of 8 cents a KWH your LED system would take ~1429 hours (59.5 days) of leaving all my lighting on to save me one KWH. Taking that out a non stop running for a full year 24 hours a day your system would save me about 50 cents.
Somehow at a savings of at best of 50 cents a year for 24/7/365 running I really don't see your .99 PFC being worth anything to me savings wise.
If you are really looking for good quality lighting systems with high efficiency and very high average service life with color and light characteristics far superior to LED Induction lighting in the way to go!
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