BillK-AZ
Senior Member
- Location
- Mesa Arizona
Most inverters for photovoltaic (solar) grid tie use specify the power factor as 1 or sometimes .99.
Has anyone in the Forum measured the power factor of currently available inverters?
Some recent installs are exhibiting power factors in the range of 0.93 to 0.95 lagging, but the manufacturer's datasheet and the label on the inverter show power factor of 1. I want to give the manufacturer a chance to respond before identifying. This has been confirmed with two utilities and multiple instruments. The problem seems so rare that there is little data on the subject.
Any input would be helpful.
Has anyone in the Forum measured the power factor of currently available inverters?
Some recent installs are exhibiting power factors in the range of 0.93 to 0.95 lagging, but the manufacturer's datasheet and the label on the inverter show power factor of 1. I want to give the manufacturer a chance to respond before identifying. This has been confirmed with two utilities and multiple instruments. The problem seems so rare that there is little data on the subject.
Any input would be helpful.
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