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Power factor (again)

Johno12345

Sorry for yet another question on this topic.

 

I have got sub metering installed on all outgoing submains, I also have a meter on the incoming main

 

Between the main meter and sub meters, I have my power factor correction

 

over a week, I'm getting about 1,500kWh of difference, the sub meters total being higher by that amount compared to the incomer meter.

 

I'd like to say that the power factor correction has effectively saved that number of kWh, is that correct?

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    I think it would be reasonable to say in answer to the OP, that the PF correction is saving 1500 kWh per week as you said. I wonder what that makes the payback period for its purchase? The next problem is to work out why your loads have poor PFs. If the cables are long you may get some significant savings by correcting the load PF at the load, cable losses are increased by poor PF. 

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    I think it would be reasonable to say in answer to the OP, that the PF correction is saving 1500 kWh per week as you said. I wonder what that makes the payback period for its purchase? The next problem is to work out why your loads have poor PFs. If the cables are long you may get some significant savings by correcting the load PF at the load, cable losses are increased by poor PF. 

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