After installing a grid tie inverter (GTI,) the power factor dropped from 1 to .85 over the last week. My loads are a combination of inductive and resistive.

I have an option of setting my GTI to feed .8 lag or .8 lead.

Which one should I use?

The default setting is unity.

I understand why the drop but what can I do about it?

My utility mandates a PF of .9 at least

  • 1
    \$\begingroup\$ I don't read a problem. \$\endgroup\$
    – Andy aka
    Commented Mar 16, 2017 at 8:13
  • \$\begingroup\$ @andy Now theres one \$\endgroup\$
    – BUCKS
    Commented Mar 16, 2017 at 10:00
  • \$\begingroup\$ It is good to ask. But keep in mind that in a situation like this you can always just try it and see what happens. \$\endgroup\$
    – user57037
    Commented May 23, 2018 at 4:07

1 Answer 1


Set it to 0.8 lead for improving the overall power factor


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