Re: [RE-wrenches] active vs apparent power readings with solar

I’m not sure if I fully get what’s was going on or where he was measuring… all of the readings are low (below 1 kW) if he was messing at the meter after the household load has combined with the PV output, then this could make sense. The household loads could be using some apparent power, but

Re: [RE-wrenches] active vs apparent power readings with solar

Hi all, if the micros are not producing power I would expect an extremely low power factor. The power factor of all inverters is low not in use. Make sure electrician is measuring during production. My measurements are extra low for micro inverters. On Thu, Apr 27, 2023, 4:11 PM August Goers

Re: [RE-wrenches] active vs apparent power readings with solar

I think the power factor will be very close to one for split phase.  What's the inverter specs say w/r to this? Chris On 4/27/2023 5:10 PM, August Goers via RE-wrenches wrote: Hi Wrenches, We have a residential site with grid tied solar where there is an electrician involved who has gotten

Re: [RE-wrenches] active vs apparent power readings with solar

This power factor is impossible, can he measure the apparent power then the real power separately devide the real by apparent to get power factor. I guess he has connections wrong, wrong leg of split phase. If the inverter is off, then possible, do you measure current off the inverter and DC

Re: [RE-wrenches] active vs apparent power readings with solar

Certainly could be the meter or how it’s being used. Like is the Electrican checking the main or output from the inverter?If the inverter output shows these numbers I’d check to make sure the inverter is in the correct grid connection  setting. JayOn Apr 27, 2023, at 5:13 PM, Dave Angelini Offgrid

Re: [RE-wrenches] active vs apparent power readings with solar

My metrology experience is he needs to prove it with a second meter. In a lab setting, at least 2 of 3 calibrated meters need to agree. I would also ask Fluke. They have been really good over the years. Good Luck. Dave Angelini Offgrid Solar "we go where powerlines don't"

[RE-wrenches] active vs apparent power readings with solar

Hi Wrenches, We have a residential site with grid tied solar where there is an electrician involved who has gotten into taking site readings and thinks there is a power factor problem. My gut on it is that there is some sort of measurement reading error, and that the power factor should be around